CN105886770A - Efficient enrichment method for precious metal secondary resources - Google Patents
Efficient enrichment method for precious metal secondary resources Download PDFInfo
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- CN105886770A CN105886770A CN201510037318.1A CN201510037318A CN105886770A CN 105886770 A CN105886770 A CN 105886770A CN 201510037318 A CN201510037318 A CN 201510037318A CN 105886770 A CN105886770 A CN 105886770A
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- noble metal
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- 238000000034 method Methods 0.000 title claims abstract description 80
- 239000010970 precious metal Substances 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 53
- 238000003723 Smelting Methods 0.000 claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000012141 concentrate Substances 0.000 claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 30
- 239000002893 slag Substances 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
- 239000002253 acid Substances 0.000 claims abstract description 21
- 238000002386 leaching Methods 0.000 claims abstract description 21
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 20
- 239000008188 pellet Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 8
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000155 melt Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 110
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 80
- 229910052751 metal Inorganic materials 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 50
- 239000003054 catalyst Substances 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 9
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 9
- 239000005751 Copper oxide Substances 0.000 claims description 9
- 229910000431 copper oxide Inorganic materials 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 7
- 239000003830 anthracite Substances 0.000 claims description 7
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 7
- 239000011280 coal tar Substances 0.000 claims description 7
- 235000013312 flour Nutrition 0.000 claims description 7
- 239000010436 fluorite Substances 0.000 claims description 7
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- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 3
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000003500 flue dust Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000002802 bituminous coal Substances 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- 235000012255 calcium oxide Nutrition 0.000 claims description 2
- 239000001117 sulphuric acid Substances 0.000 claims description 2
- 235000011149 sulphuric acid Nutrition 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 29
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- 241001062472 Stokellia anisodon Species 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 23
- 229910052697 platinum Inorganic materials 0.000 description 16
- 229910052759 nickel Inorganic materials 0.000 description 11
- 230000006315 carbonylation Effects 0.000 description 8
- 238000005810 carbonylation reaction Methods 0.000 description 8
- 239000010931 gold Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 230000004044 response Effects 0.000 description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 7
- 229910052737 gold Inorganic materials 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 239000000284 extract Substances 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
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- 230000023556 desulfurization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- YFLLTMUVNFGTIW-UHFFFAOYSA-N nickel;sulfanylidenecopper Chemical compound [Ni].[Cu]=S YFLLTMUVNFGTIW-UHFFFAOYSA-N 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 description 2
- 229910052569 sulfide mineral Inorganic materials 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- -1 Platinum Metals Chemical class 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- FQNGWRSKYZLJDK-UHFFFAOYSA-N [Ca].[Ba] Chemical compound [Ca].[Ba] FQNGWRSKYZLJDK-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
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- 239000003513 alkali Substances 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000005188 flotation Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- JUWSSMXCCAMYGX-UHFFFAOYSA-N gold platinum Chemical compound [Pt].[Au] JUWSSMXCCAMYGX-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- SVMGVNXXUVNGRK-UHFFFAOYSA-N oxomethylideneiron Chemical compound O=C=[Fe] SVMGVNXXUVNGRK-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910000923 precious metal alloy Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000011946 reduction process Methods 0.000 description 1
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- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
Abstract
本发明公开了一种贵金属二次资源高效富集的方法。该工艺是将贵金属二次资源物料与铜捕集剂、还原剂、造渣剂、粘结剂、水分在球磨机中进行充分润磨，混匀后采用成球机制成球团，经烘干，获得复合球团；待中频炉熔化废铜，分批次往中频炉中加入复合球团，混合熔炼一段时间后，捞出熔炼渣，铜水倒入浇注模中形成铜阳极板；采用电解方法获得阴极铜，贵金属进入阳极泥中，电解残极返回熔炼浇注阳极板再重新电解；采用加压酸浸阳极泥，经过滤和洗涤，获得贵金属精矿，实现了贵金属富集。此方法过程简单、原料适应性强、高效、富集比高、环保、成本低，易产业化。
The invention discloses a method for efficiently enriching precious metal secondary resources. The process is to fully moisten and grind precious metal secondary resource materials, copper collectors, reducing agents, slagging agents, binders, and water in a ball mill, and then use a ball forming machine to form pellets after mixing. After drying, Obtain composite pellets; after the intermediate frequency furnace melts scrap copper, add composite pellets to the intermediate frequency furnace in batches, mix and smelt for a period of time, remove the smelting slag, pour copper water into the casting mold to form copper anode plates; use electrolysis method The cathode copper is obtained, the precious metal enters the anode slime, and the electrolytic residual electrode is returned to the smelting and pouring anode plate for electrolysis again; the anode slime is subjected to pressurized acid leaching, filtered and washed to obtain the precious metal concentrate and realize the enrichment of the precious metal. The method has the advantages of simple process, strong raw material adaptability, high efficiency, high enrichment ratio, environmental protection, low cost and easy industrialization.
Description
Technical field
The invention belongs to rare precious metal field of metallurgy, a kind of method relating to noble metal secondary resource efficiently concentrating.
Background technology
Noble metal secondary resource kind is more, noble metal secondary resource is various containing the residue after noble metal flue dust, platinum metal catalysts, silver catalyst, platinum group metal wet underwater welding, the residue after silver catalyst wet underwater welding, glass fiber bushing, electron wastes etc., traditional wet method can extract noble metal, but consumption acid and reagent are relatively big, and produce a large amount of waste liquid, and cost is high, as used pyrogenic process to be enriched with, substantial amounts of acid and reagent can be saved, it is possible to decrease acid consumes, and alleviates environmental pollution.At present, noble metal secondary resource enrichment method is as follows:
Yan Li et al. elaborates the result of study of soda sintering-acid-hatching of young eggs enriching and recovering platinum group metal in " Chinese Resources comprehensive utilization " the 1st phase in 2011, think by Phase Diagram Analysis, X-ray diffraction analysis and the method for slag rate contrast, determine the soda sintering-acid-hatching of young eggs recycle the dispensing pattern of platinum group metal waste material, sintering schedule and leach enriching noble metals condition, thus contribute to making full use of solid platinum group metal secondary resource, improve the noble metal response rate.
Fan Xingxiang describes for dead catalyst in " rare metal " the 2nd phase in 2014, using ferrum as supplementary set agent, it is proposed that the noble metal that the process route of low-temperature reduction-mill choosing-acidleach is enriched with in dead catalyst.Primary study residue and trapping agent proportioning, reduction temperature, recovery time, additive formula, reducing agent proportioning, the mog impact on index.By experiment, it is determined that optimal processing parameter: residue and trapping agent proportioning are 1.0: 1.5, and reduction temperature is 1220 DEG C, and the recovery time is 6 h, and additive formula is the 10% of trapping agent weight ratio, and coal dust proportioning is the 9% of trapping agent weight ratio, Ball-milling Time 45 min.Use scanning electron microscope (SEM) and X-ray diffraction material phase analysis (XRD) that reduzate is analyzed, result shows, in reduction process, add additive to promote ferrum crystal grain agglomeration and can effectively trap platinum group metal, ferrum grain size range is 50 ~ 150 μm after carrying out reduction, and physics patchiness is presented mutually with slag, follow-up mill choosing separates.Selected by mill, obtain platinum group metal reduced iron powder, use X-ray diffraction material phase analysis (XRD) that iron powder is analyzed, analyze and show that its thing is mainly metallic iron mutually, achieve metallic iron to separate with stone-like pulse, lay the foundation for follow-up acid molten enrichment platinum group metal.Under the process conditions determined, obtain platinum group metal enriched substance, wherein: Pt 47495.3 g/t；Pd 12756.8 g/t；Rh 23145.5 g/t, molten to acid from raw material, platinum, palladium, rhodium concentration ratio is respectively 551.30, and 512.73,545.90, the response rate is respectively 98.16%, and 91.22%, 97.35%.By experiment, metallic iron can the effective platinum group metal in enriched catalytic agent, this technique have be simple to operate and friendly to environment, high accumulation rate and the advantage such as practical, can be the offer reference of platinum group metal secondary resource beneficiation technologies.
Liu Silin have studied in nickel-containing material the noble metal of different grades trend in nickel CARBONYLATION PROCESSES and enrichment discipline in " noble metal " the 3rd phase in 1998.Test have employed the carbonyl process melting material to being made up of a corronil, high-grade precious metal anode mud and converter mattes in following process conditions: carbon monoxide pressure 10787kPa, time 48h, temperature 160 DEG C process.Result shows: gold and platinum group metal content nickel-containing material in the range of 0.0 ~ 0.3% through carbonylation process after, carbonylation rate ＞ 97% of nickel.And gold and platinum group metal do not have carbonylation, the most non-carbonylation of silver, without any loss, all it is enriched in carbonylation residue.Meanwhile, cobalt, copper, arsenic, selenium the most all have enrichment in various degree.Use carbonyl process Refining Nickel enriching noble metals can reduce dispersion and the loss of noble metal undoubtedly, thus the overall recovery of noble metal and the recovery of other metal can be improved.
Wu Guoyuan describes from wet method, pyrogenic process and gas phase three angles of volatilization in " rare metal " the 3rd phase in 2002, review the enrichment method of noble metal in noble metal catalyst, and describe sub sulphide method of using, the method for volatile carrier material aluminium sesquioxide enriching noble metals.
Qu Zhiping " Chinese Resources comprehensive utilization " the 9th phase in 2019 describe the difficulty that low grade noble metal material extracts be mainly reflected in noble metal component from the most low-grade material effectively enrichment and each precious metal element from polynary noble metal compound in terms of high efficiency separation.Describe employing Na2CO3Roasting method is effectively enriched with platinum group metal from low content Pt, Pd, Rh waste material, the rich material oxidation liquid making after enrichment, realizes high efficiency separation and the preliminary purification of Pt, Pd, Rh with solvent extraction.
Zhang Guanlu elaborates to grind the deficiency in floating magnetic separation corronil potassium cloride slag enriching noble metals production procedure for the converter mattes containing noble metal 0.12% in " noble metal " the 3rd phase in 2000, propose new process structure, elementary sulfur--melting height sulfonium Han noble metal--three steps of pressurized acid leaching, base metal separation efficiency (%): Cu 99.5, Ni 99.8, Fe 94.5, S 99.6, SiO is removed including kerosene2 98.8；The noble metal response rate (%): Pt 98.0, Pd 97.0, Au 97.0, output noble metal grade > 30 %, high and low than > concentrate of 1.
Qiu Xianyang etc. disclose a kind of method (application for a patent for invention number: 201310555676.2) being enriched with platinum family element from platinum family concentrate, it is characterized in that step is as follows: 1) use mass percent concentration be 10 ~ 50% sulfuric acid solution mix with platinum family concentrate in mass ratio 3 ~ 10: 1, under normal pressure or pressure, leach under conditions of heating and being passed through oxygen, solid-liquid separation after leaching, obtains leachate and the leached mud of platinum group element of cupric, nickel, cobalt and ferrum；2) by step 1) leached mud of gained is concentrated into flotation after solid contents 10 ~ 40%wt, obtains platinum family element enriched substance concentrate and tailings；3), after mine tailing solid-liquid separation, mine tailings and tailings liquid are obtained；4) blend step 1) leachate and step 3) solution reclaim copper, nickel, cobalt and ferrum.Platinum family element in platinum family concentrate can be enriched with by the method for the present invention further, and follow-up platinum family element leaches and extracts；The most also reclaim copper, nickel, cobalt and the ferrum element that (companion) is raw altogether.Present invention process is simple, low cost, and the platinum family element response rate is high.
Congratulate pulk et al. and invent a kind of method (application for a patent for invention number: 201310104285.9) being enriched with platinum group metal from alumina base dead catalyst.It is an object of the invention to overcome the deficiency of above-mentioned prior art, thering is provided a kind of method being enriched with platinum group metal from alumina base dead catalyst, the method adaptation material scope is wide, dissolving carrier effect is good, platinum group metal enrichment times high, be enriched with content height in platinum group metal in slag, height is reclaimed in platinum group metal, equipment corrosion is low.A kind of method being enriched with platinum group metal from alumina base dead catalyst, comprises the following steps: A, once burn；B, pulverizing；C, pressurization alkali are molten；D, filtration；E, secondary burning.It is wide that the present invention adapts to material scope；Dissolution ratio of aluminum oxide is more than 95%；Platinum group metal is enriched with 80～120 times, and concentration effect is good；In slag in the range of platinum group metal content 10～40%, beneficially postorder Refining of Platinum Metals；In process of enriching, the response rate of platinum group metal is more than 99%；Equipment corrosion is low.
Zhong Qingshen et al. discloses the method (application for a patent for invention number: 201310137508.1) of the Concentration of Gold in a kind of copper nickel sulfide mineral smelting process and platinum group metal, relates to a kind of copper nickel sulfide mineral metallurgical process Concentration of Gold containing rare precious metal and the method for platinum group metal.It is characterized in that its process is nickel ore concentrate to carry out magnetic separation obtain sulfur-bearing fine alloy；The sulfur-bearing fine alloy of acquisition carries out two sections of normal pressure leaching again, one section of pressure leaching obtains containing gold and the pressure leaching scum of platinum group metal；Again pressure leaching scum and nickel ore concentrate are mixed and carry out concentration smelting, shrend acquisition containing gold and the shrend noble metal sulfonium of platinum group metal；Acquisition shrend noble metal sulfonium finally send platinum group metal production line Enrichment purification operation process, and smelting slag send nickel pyrometallurgical smelting to process.The method technique of the present invention is simple, and the concentration ratio of rare precious metal and the response rate are high, and non-environmental-pollution, fusing point low energy expenditure is few, and production cost is low.
Bi Xiangguang et al. invents a kind of method (patent of invention application number: 201310494814.0) reclaiming platinum group metal from automobile spent catalyst.More particularly it relates to the dissolving method of platinum group metal in a kind of automobile spent catalyst enriched substance.The step of the present invention includes: automobile spent catalyst being enriched with the platinum group metal enrichment thing obtained, after pretreatment, adds oxidant and make abundant, the quick dissolving in platinum group metal proceed in solution in hydrochloric acid medium, insoluble matter is reprocessed after filtering.The method has platinum group metal response rate height, flow process is short, environmental protection pressure is little, low cost and other advantages.
Li Yongjun et al. invents a kind of method (application for a patent for invention number: 200610065040.X) being enriched with platinum-group noble metals from corronil.It is characterized in that its enrichment process for corronil is loaded in synthesis reactor, synthesis reaction vessel is passed through CO >=70%, O2The CO (carbon monoxide converter) gas of≤0.4%, control synthesis reaction vessel pressure at 5 ~ 25MPa, temperature 70 C～250 DEG C, the nickel in corronil, ferrum, cobalt element is made to generate gaseous metal carbonyl compound with carbon monoxide gas precursor reactant and depart from alloy, and platinum-group noble metals forms residue, platinum-group noble metals is made to be enriched with.Present invention process flow process is short, and production cost is low, and the platinum-group noble metals response rate is high, low in the pollution of the environment.
nullDing Enzhen et al. invention relates to a kind of method reclaiming metallic element and equipment (application for a patent for invention number: 201110049182.8) thereof，It is specifically related to a kind of plasma arcs reclaiming platinum group and melts enrichment method and equipment thereof，The method is by the material of pretreated platinum group metallic element and ferrum oxide、Solid carbon reducing agent together with flux dry method mixed grind grind after，Load powder spraying pot，Utilize noble gas and or reducibility gas as carrier gas suspension conveying material，The axial center hole of graphite electrode through the plasma arcs melting furnace of closed negative pressure melting，It is sent directly in plasma arcs，Reduction melting also enters molten bath，Platinum family element is under the collecting of collecting agent ferrum is carried，Through melted slag blanket，Enter your fusant layer，After standing，Glassy state slag and your ferrum can be discharged body of heater，After discharging the slag water quenching granulation of body of heater，Through magnetic separator、Select your ferrum granule or microgranule，Hydrometallurgy operation is together entered with your fusant excreted，Continue separating-purifying platinum group.
Zhong Qingshen et al. discloses a kind of efficiently concentrating gold and method (application for a patent for invention number: 201310268495.1) of platinum group metal from complicated low-grade chlorine leaching slag, relates to low-grade intergrowth mineral product resource high-efficiency and selects smelting--rare precious metal separation and Extraction development key technology field.Complexity low-grade chlorine leaching slag raw material is controlled suitable solid-to-liquid ratio, leaches the technological parameters such as reaction temperature, extraction time, acidity, desulfurizing agent addition, carrying out pulping and washing, one section of normal pressure leaching desulfurization, two-stage nitration normal pressure leaching desulfurization, pressure leaching, desiliconization, solid-liquid separation respectively, gained desiliconization slag is high-grade high-quality noble metal concentrate.Compared with traditional method, present invention process is simple, environmental friendliness, during do not produce poisonous waste gas, waste residue etc., the most do not use poisonous reagent, the concentration ratio of the rare precious metals such as gold and platinum palladium and the response rate are high, and slag noble metal grade reaches 9000-15000g/t, the noble metal response rate reaches more than 98% in enrichment, it is simple to linking precious metal separation refining process.
Zhong Qingshen et al. discloses a kind of efficiently concentrating gold and method (application for a patent for invention number: 201310267498.3) of platinum group metal from complicated low-grade rhodium iridium residues, belong to rare precious metal field of hydrometallurgy, the present invention uses low concentration bright sulfur acid solution to carry out one section of normal pressure leaching, two-stage nitration normal pressure leaching, pressure leaching, and described one section of normal pressure leaching process is not passed through or adds oxidant；In two-stage nitration normal pressure leaching, air is as Oxidation Leaching agent；Pressure leaching use industrial oxygen as Oxidation Leaching agent；Use three step impurity removal process afterwards, obtain high-grade high-quality rhodium iridium concentrate.Present invention process is simple, environmental friendliness, during do not produce poisonous waste gas, waste residue etc., the most do not use poisonous reagent, the concentration ratio of the rare precious metals such as rhodium iridium and the response rate are high, and enrichment slag noble metal grade reaches 15%, the noble metal response rate reaches more than 98%, it is simple to linking rhodium iridium separation refine.
Hillside plot is ploughed department et al. and is disclosed a kind of method (patent of invention number: 200480006344.8) reclaiming platinum family element, use equipped with at least one electrode and the closed electric furnace of furnace roof, described electrode is used for by electric current and heats the material loaded in stove, and described furnace roof is for making the material in loading stove substantially shield with ambient atmosphere.Oxide raw material containing platinum family element, copper oxide, solid carbonaceous reductant and flux are loaded electric furnace, makes the material molten of loading with electrode by electric current heating and reduce this material, thus at molten slag layer melting metal layer formed below；And make platinum family element be enriched with in this motlten metal.Now, oxide raw material, copper oxide, solid carbonaceous reductant and flux all make powder or granular materials, by these powder or granular materials premixing, it is then charged into electric furnace, and provide one to stand step, wherein the material of the heat fusing in stove is placed at least 5 hours at 1200-1500 DEG C, hereafter the motlten metal of platinum group element is discharged electric furnace.
Hillside plot is ploughed department et al. and is disclosed a kind of method (patent of invention number: 200710153756.X) reclaiming platinum family element, including by pending platinum group elemental substance and the copper source material containing copper oxide, load together with flux component and reducing agent in closed electric furnace, be allowed to melt；The mainly motlten metal of metallic copper is deposited in below the molten slag layer of mainly oxide；;Enrichment is deposited in the platinum family element in following motlten metal, it is characterized in that, from electric furnace, discharge copper content be reduced to the molten slag of 3.0 weight % or lower, and loading the copper source material in electric furnace is that particle diameter is not less than 0.1MM and the graininess copper source material less than 10MM.
Li Yongjun et al. discloses the method (application for a patent for invention number: 200610156302.3) of noble metal in a kind of enriched iron concentrate, relates to a kind of enrichment gold silver and method of platinum-group noble metals from the fine iron breeze containing gold silver and platinum group metal.It is characterized in that its process is first iron ore concentrate to carry out reduction roasting make the sponge iron being enriched noble metal, again sponge iron carbon monoxide gas precursor reactant is generated gaseous state carbonyl iron and ferrum is separated, obtaining enriching noble metals carbonylation slag, carbonylation slag enters and extracts noble metal flow process.The method of the present invention, combines traditional process for producing sponge iron with the synthesis of advanced carbonyl iron, decomposition technique, process.Producing while carbonyl iron product, make the rare precious metal in raw material be enriched with, the valuable metal in synthetical recovery raw material.Technological process is short, low cost, does not has waste gas to produce in course of reaction, free from environmental pollution, while producing carbonyl iron, makes gold silver and platinum-group noble metals obtain enrichment and reclaim.
Song Hongru et al. provides a kind of method (application for a patent for invention number: 201310472109.0) of efficiently concentrating rare precious metal from complicated low-grade heat filtering residue, and hot filtering residue uses one section of normal pressure preextraction, two sections of desulfurization at normal-pressure leachings, one section of doctor solution evaporating, concentrating and crystallizing sodium thiosulfate product, two-stage nitration desulfurization slag pressure oxidation leaching, pressurization slags to make the impurity such as glass dregs removing ferrosilicon barium calcium and magnesium aluminum complexity silicate and obtain high-grade concentration of precious metal thing.This method technique is simple, and environmental friendliness does not produce poisonous waste gas and waste residue etc., the most do not uses poisonous reagent, beneficially environmental conservation, and easy to operate, labor intensity is little, efficiency is high, and production process is easily controlled, and is also easy to realize the automatization of process；Can obtain gold silver and platinum group metal content is up to of high grade, the matter measured noble metal concentrate of 9～15%, the noble metal response rate reaches more than 99%, easily linking gold and the extract and separate refinery practice of platinum group metal.
The good melting enrichment-wet separation technique that describes in dry side extracts the method (patent of invention number: 201210060308.6) of noble metal from spent auto-catalysts, relates to a kind of method extracting platinum group metal from automobile catalyst.Step of the present invention includes: after catalyst is mixed homogeneously with adjuvants such as flux through fusion process concentration of precious metal alloy mutually in；Through acid flux material Selectively leaching separation base metal and obtain noble metal concentrate after alloy phase efflorescence；Noble metal concentrate is carried out refine output noble metal products.The present invention has obvious advantage compared with single wet treatment flow process: unit product reagent consumption and pollutant are greatly decreased, and the noble metal response rate is greatly improved, shortens flow process, cost reduction, and economy and obvious environment benefit improve.
Wang Jianguo provides a kind of method (application for a patent for invention number: 97115267.5) of waste recovery platinum from the converter for ammonia oxidation producing nitric acid, and it takes A, pickling to gather materials, filtering residue collection ash；B, dispensing fire reduction are smelted, ferrum enrichment displacement;C, wet purification.This method integrated cost is low, and environmental pollution is little, and platinum yield, up to 92～98.5%, has obvious economic benefit and social benefit, it is adaptable to clean the recycling of waste material when converter for ammonia oxidation is to be repaired.
To sum up, use and add noble metal collector, slag former, reducing agent, binding agent mixing, balling-up, be dried, carrying out reduction melting, it is thus achieved that blister copper, blister copper cast forms positive plate, is electrolysed, obtaining tough cathode and the earth of positive pole, pressurized acid leaching goes out the earth of positive pole, it is achieved noble metal efficiently concentrating.At inspection information, the method shows that there is not been reported.
Summary of the invention
It is an object of the invention to overcome above-mentioned weak point of the prior art, a kind of method providing noble metal secondary resource efficiently concentrating, the method is: prepared by composite pellet, reduction melting realizes noble metal trapping, electrolysis obtains the earth of positive pole, pressurized acid leaching enriching noble metals.This method process is simple, adaptability to raw material is strong, efficiently, concentration ratio height, environmental protection, low cost, easy industrialization.
The technical solution used in the present invention is: a kind of method of noble metal secondary resource efficiently concentrating, it is characterized in that sequentially including the following steps: (1) fully moistens mill by noble metal secondary resource material and copper trapping agent, reducing agent, slag former, binding agent, moisture in ball mill, nodulizer is used to make pelletizing after mixing, drying, it is thus achieved that composite pellet；(2) treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches, after melting a period of time, pull smelting slag out in intermediate frequency furnace, copper water pours formation copper anode plate in casting moulds into；(3) using electrolytic method to obtain tough cathode, tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；(4) the pressurized acid leaching earth of positive pole is used, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.
Noble metal secondary resource material in step (1) is various containing the residue after noble metal flue dust, platinum metal catalysts, silver catalyst, platinum group metal wet underwater welding, the residue after silver catalyst wet underwater welding, glass fiber bushing, electron wastes etc., slag former is one or more in quick lime, silica flour, fluorite, and addition is noble metal secondary resource weight of material ratio 0.2-0.6 times；Trapping agent is one or more in copper oxide concentrate, high-purity copper oxide, high-purity Red copper oxide, and addition is noble metal secondary resource weight of material ratio 0.1-0.5 times；Reducing agent is one or more in coke powder, anthracite, bituminous coal, graphite powder, and addition is that noble metal secondary resource weight of material compares 2-6%；Binding agent is coal tar, and addition is that platinum group metal secondary resource weight of material compares 0.1-0.5%.The smelting temperature of step (2) intermediate frequency furnace fusing copper scrap is 1250-1500 DEG C, time 2-5h.Step (3) uses electrolytic method to obtain tough cathode, and electrolytic medium is hydrochloric acid, and concentration is 5-12%.Step (4) uses acid used in the pressurized acid leaching earth of positive pole to be sulphuric acid, and consumption is the 10-50% of earth of positive pole weight ratio, pressure is 1.2-1.80MPa, and temperature is 120-180 DEG C, and the time is 2-6h, and liquid-solid ratio is 3:1 ~ 5:1.
Accompanying drawing explanation
Fig. 1 is the process chart of a kind of noble metal secondary resource efficiently concentrating.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with instantiation, the present invention is described in further detail:
Embodiment 1
See accompanying drawing 1, condition: noble metal secondary resource material 1000g, trapping agent copper oxide concentrate addition is noble metal secondary resource weight of material ratio 20%, reducing agent anthracite addition is platinum group metal secondary resource weight of material ratio 3%, binding agent coal tar addition is the 0.3% of noble metal secondary resource weight of material ratio, slag former addition is the 30%(wherein Calx of noble metal secondary resource weight of material ratio: silica flour: fluorite=4:5:1), mixing, nodulizer is used to make 5cm pelletizing, dry, it is thus achieved that composite pellet；Treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches in intermediate frequency furnace, mixed smelting a period of time, smelting temperature is 1300 DEG C, and smelting time is 3h, pulls smelting slag out, and copper water pours formation copper anode plate in casting moulds into；Using electrolysis preliminary concentration noble metal, medium is hydrochloric acid, and concentration is 8%, obtains tough cathode and the earth of positive pole through electrolysis, and tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；(4) using the pressurized acid leaching earth of positive pole, sulfuric acid dosage is the 40% of earth of positive pole weight ratio, pressure is 1.3MPa, and temperature is 150 DEG C, and the time is 4h, and liquid-solid ratio is 4:1, after acidleach terminates, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.From raw material to noble metal concentrate, platinum group metal yield is 98.12%, and concentration ratio is 150.80 times.
Embodiment 2
See accompanying drawing 1, condition: noble metal secondary resource material 3000g, trapping agent copper oxide concentrate addition is noble metal secondary resource weight of material ratio 40%, reducing agent anthracite addition is platinum group metal secondary resource weight of material ratio 4%, binding agent coal tar addition is the 0.4% of noble metal secondary resource weight of material ratio, slag former addition is the 40%(wherein Calx of noble metal secondary resource weight of material ratio: silica flour: fluorite=4:4:2), mixing, nodulizer is used to make 5cm pelletizing, dry, it is thus achieved that composite pellet；Treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches in intermediate frequency furnace, mixed smelting a period of time, smelting temperature is 1400 DEG C, and smelting time is 2h, pulls smelting slag out, and copper water pours formation copper anode plate in casting moulds into；Using electrolysis preliminary concentration noble metal, medium is hydrochloric acid, and concentration is 10%, obtains tough cathode and the earth of positive pole through electrolysis, and tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；(4) using the pressurized acid leaching earth of positive pole, sulfuric acid dosage is the 25% of earth of positive pole weight ratio, pressure is 1.4MPa, and temperature is 160 DEG C, and the time is 3h, and liquid-solid ratio is 5:1, after acidleach terminates, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.From raw material to noble metal concentrate, platinum group metal yield is 98.23%, and concentration ratio is 132.56 times.
Embodiment 3
See accompanying drawing 1, condition: noble metal secondary resource material 5000g, trapping agent high-purity copper oxide product addition is noble metal secondary resource weight of material ratio 15%, reducing agent anthracite addition is platinum group metal secondary resource weight of material ratio 4%, binding agent coal tar addition is the 0.4% of noble metal secondary resource weight of material ratio, slag former addition is the 30%(wherein Calx of noble metal secondary resource weight of material ratio: silica flour: fluorite=4:5:1), mixing, nodulizer is used to make 5cm pelletizing, dry, it is thus achieved that composite pellet；Treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches in intermediate frequency furnace, mixed smelting a period of time, smelting temperature is 1450 DEG C, and smelting time is 4h, pulls smelting slag out, and copper water pours formation copper anode plate in casting moulds into；Using electrolysis preliminary concentration noble metal, medium is hydrochloric acid, and concentration is 12%, obtains tough cathode and the earth of positive pole through electrolysis, and tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；(4) using the pressurized acid leaching earth of positive pole, sulfuric acid dosage is the 30% of earth of positive pole weight ratio, pressure is 1.5MPa, and temperature is 160 DEG C, and the time is 3h, and liquid-solid ratio is 4:1, after acidleach terminates, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.From raw material to noble metal concentrate, platinum group metal yield is 98.47%, and concentration ratio is 125.09 times.
Embodiment 4
See accompanying drawing 1, condition: noble metal secondary resource material 6000g, trapping agent Red copper oxide concentrate addition is noble metal secondary resource weight of material ratio 50%, reducing agent anthracite addition is platinum group metal secondary resource weight of material ratio 5%, binding agent coal tar addition is the 0.4% of noble metal secondary resource weight of material ratio, slag former addition is the 30%(wherein Calx of noble metal secondary resource weight of material ratio: silica flour: fluorite=4:5:1), mixing, nodulizer is used to make 5cm pelletizing, dry, it is thus achieved that composite pellet；Treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches in intermediate frequency furnace, mixed smelting a period of time, smelting temperature is 1350 DEG C, and smelting time is 2h, pulls smelting slag out, and copper water pours formation copper anode plate in casting moulds into；Using electrolysis preliminary concentration noble metal, medium is hydrochloric acid, and concentration is 10%, obtains tough cathode and the earth of positive pole through electrolysis, and tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；(4) using the pressurized acid leaching earth of positive pole, sulfuric acid dosage is the 30% of earth of positive pole weight ratio, pressure is 1.5MPa, and temperature is 180 DEG C, and the time is 2h, and liquid-solid ratio is 3:1, after acidleach terminates, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.From raw material to noble metal concentrate, platinum group metal yield is 98.50%, and concentration ratio is 138.07 times.
Embodiment 5
See accompanying drawing 1, condition: noble metal secondary resource material 8000g, trapping agent copper oxide concentrate addition is noble metal secondary resource weight of material ratio 30%, reducing agent anthracite addition is noble metal secondary resource weight of material ratio 3%, binding agent coal tar addition is the 0.3% of noble metal secondary resource weight of material ratio, slag former addition is the 30%(wherein Calx of noble metal secondary resource weight of material ratio: silica flour: fluorite=4:5:1), mixing, nodulizer is used to make 5cm pelletizing, dry, it is thus achieved that composite pellet；Treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches in intermediate frequency furnace, mixed smelting a period of time, smelting temperature is 1500 DEG C, and smelting time is 2h, pulls smelting slag out, and copper water pours formation copper anode plate in casting moulds into；Using electrolysis preliminary concentration noble metal, medium is hydrochloric acid, and concentration is 6%, obtains tough cathode and the earth of positive pole through electrolysis, and tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；Using the pressurized acid leaching earth of positive pole, sulfuric acid dosage is the 30% of earth of positive pole weight ratio, pressure is 1.2MPa, and temperature is 160 DEG C, and the time is 4h, and liquid-solid ratio is 4:1, after acidleach terminates, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.From raw material to noble metal concentrate, platinum group metal yield is 98.43%, and concentration ratio is 141.77 times.
Claims (5)
1. the method for a noble metal secondary resource efficiently concentrating, it is characterized in that sequentially including the following steps: (1) fully moistens mill by noble metal secondary resource material and copper trapping agent, reducing agent, slag former, binding agent, moisture in ball mill, nodulizer is used to make pelletizing after mixing, drying, it is thus achieved that composite pellet；(2) treating that intermediate frequency furnace melts copper scrap, add composite pellet in batches, after melting a period of time, pull smelting slag out in intermediate frequency furnace, copper water pours formation copper anode plate in casting moulds into；(3) using electrolytic method to obtain tough cathode, tough cathode returns intermediate frequency furnace melting, and noble metal enters in the earth of positive pole, and adopting electrolysis residual pole Returning smelting cast positive plate is electrolysed the most again；(4) the pressurized acid leaching earth of positive pole is used, through filtering and washing, it is thus achieved that noble metal concentrate, it is achieved concentration of precious metal.
The method of a kind of noble metal secondary resource efficiently concentrating the most according to claim 1, it is characterized in that the noble metal secondary resource material in step (1) is various containing the residue after noble metal flue dust, platinum metal catalysts, silver catalyst, platinum group metal wet underwater welding, the residue after silver catalyst wet underwater welding, glass fiber bushing, electron wastes etc., slag former is one or more in quick lime, silica flour, fluorite, and addition is noble metal secondary resource weight of material ratio 0.2-0.6 times；Trapping agent is one or more in copper oxide concentrate, high-purity copper oxide, high-purity Red copper oxide, and addition is noble metal secondary resource weight of material ratio 0.1-0.5 times；Reducing agent is one or more in coke powder, anthracite, bituminous coal, graphite powder, and addition is that noble metal secondary resource weight of material compares 2-6%；Binding agent is coal tar, and addition is that platinum group metal secondary resource weight of material compares 0.1-0.5%.
The method of a kind of noble metal secondary resource efficiently concentrating the most according to claim 1, it is characterised in that the smelting temperature of step (2) intermediate frequency furnace fusing copper scrap is 1250-1500 DEG C, time 2-5h.
The method of a kind of noble metal secondary resource efficiently concentrating the most according to claim 1, it is characterised in that step (3) uses electrolytic method to obtain tough cathode, and electrolytic medium is hydrochloric acid, and concentration is 5-12%.
The method of a kind of noble metal secondary resource efficiently concentrating the most according to claim 1, it is characterized in that step (4) uses acid used in the pressurized acid leaching earth of positive pole to be sulphuric acid, consumption is the 10-50% of earth of positive pole weight ratio, pressure is 1.2-1.80MPa, temperature is 120-180 DEG C, time is 2-6h, and liquid-solid ratio is 3:1 ~ 5:1.
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| CN115927869A (en) * | 2022-11-11 | 2023-04-07 | 中国恩菲工程技术有限公司 | Method for extracting noble metal from noble metal-containing material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928836A (en) * | 2010-09-07 | 2010-12-29 | 湖南昭山冶金化工有限公司 | Method for comprehensively recovering valuable metals from bismuth-containing complex materials |
| CN102534226A (en) * | 2012-03-09 | 2012-07-04 | 干方良 | Method for extracting precious metal from spent automobile catalyst by concentration smelting-wet separation process |
-
2015
- 2015-01-26 CN CN201510037318.1A patent/CN105886770A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928836A (en) * | 2010-09-07 | 2010-12-29 | 湖南昭山冶金化工有限公司 | Method for comprehensively recovering valuable metals from bismuth-containing complex materials |
| CN102534226A (en) * | 2012-03-09 | 2012-07-04 | 干方良 | Method for extracting precious metal from spent automobile catalyst by concentration smelting-wet separation process |
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| CN113737014A (en) * | 2021-09-23 | 2021-12-03 | 中国恩菲工程技术有限公司 | Comprehensive treatment method for gold concentrate and secondary copper resource |
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| CN115418492A (en) * | 2022-09-21 | 2022-12-02 | 安徽工业大学 | Method for trapping platinum group metal in waste automobile exhaust catalyst by low-temperature copper smelting |
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| CN115927869A (en) * | 2022-11-11 | 2023-04-07 | 中国恩菲工程技术有限公司 | Method for extracting noble metal from noble metal-containing material |
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