US20070283785A1 - Process for recovery of iron from copper slag - Google Patents
Process for recovery of iron from copper slag Download PDFInfo
- Publication number
- US20070283785A1 US20070283785A1 US11/386,575 US38657506A US2007283785A1 US 20070283785 A1 US20070283785 A1 US 20070283785A1 US 38657506 A US38657506 A US 38657506A US 2007283785 A1 US2007283785 A1 US 2007283785A1
- Authority
- US
- United States
- Prior art keywords
- iron
- process according
- reductant
- weight
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000010949 copper Substances 0.000 title claims abstract description 91
- 239000002893 slag Substances 0.000 title claims abstract description 87
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 86
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 84
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000008569 process Effects 0.000 title claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 39
- 238000011084 recovery Methods 0.000 title claims abstract description 36
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 36
- 230000004907 flux Effects 0.000 claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 8
- 239000004571 lime Substances 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 239000002006 petroleum coke Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 5
- 238000010309 melting process Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 5
- 239000002699 waste material Substances 0.000 abstract description 11
- 239000012141 concentrate Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000008240 homogeneous mixture Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 230000009467 reduction Effects 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 6
- 239000010970 precious metal Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 229910052598 goethite Inorganic materials 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910020637 Co-Cu Inorganic materials 0.000 description 1
- -1 FeO Chemical compound 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009852 extractive metallurgy Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011361 granulated particle Substances 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 231100000041 toxicology testing Toxicity 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2300/00—Process aspects
- C21C2300/04—Avoiding foam formation
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Definitions
- the present invention relates to a process for recovery of iron from copper slag.
- This invention particularly relates to a process for recovery of iron from a waste like granulated copper slag generated during the production of copper from its ores by a pyrometallurgical method.
- the present invention will be useful for solving the ecological and environmental issues with an added economic advantage of utilising the dump slag generated in the copper plants.
- Hartenstein patent discloses a process for utilizing the waste products of blast furnaces wherein slag is subjected to treatment with a carbonaceous material and electric current.
- the Betts patent discloses a metallurgical process wherein silicon is used in recovering iron and copper from a slag.
- the Stout patent discloses a method of treatment of copper metallurgical slag wherein the slag is treated with iron to extract additional copper.
- the Fowler et al patent discloses a process for recovering copper from slag wherein carbonaceous material is added to reduce the slag and obtain the copper therefrom.
- the Lichty patent discloses a process for recovery of metals from metallurgical slag wherein silicon is used as a reducing agent to obtain iron and copper from the slag.
- the Kuzell patent discloses a process of treating copper matte wherein iron and copper are recovered by air blowing a molten charge of the matte.
- the Wiberg patent discloses a method for refining metals.
- the Zimmerley et al patent discloses recovery of molybdenum from slag by means of a reduction smelting operation.
- the Ammann et al patent discloses a process for recovering copper from molten converter-type slags wherein the magnetite in the slag is reduced with carbonaceous materials and/or other solid reductants and stirring of the slag is utilized.
- the main object of the present invention is to provide a process for recovery of iron from copper slag.
- Another objective of the present invention is to provide a process for the production of metal from the granulated slag generated during the processing of copper concentrates.
- Still another object of the present invention is to provide a process for the production of metal from the granulated slag generated during the processing of copper concentrates from an Indian copper producing company.
- the present invention provides a process for the recovery of iron from copper slag which comprises:
- the copper slag used in the process may have the following composition range: Cu(%) 0-0.523 Silica(%) 25-35 Lime(%) 3-10 Fe(%) 30-50 Cd(ppm) 0-0.005 Co(ppm) 2-6 Ni(ppm) 0-0.6 Pb(ppm) 2-10
- the reductant material may be selected from graphite, petroleum coke and like materials and may have size in the range between 0.2 to 10 mm.
- the addition of reductant material may be made through the following three stages:
- the created amount of molten pool may be of 10 to 20 volume % of furnace capacity.
- the flux used may be selected from oxide and carbonate of calcium and magnesium.
- the obtained products may be grinding grade cast iron and like and the recovery rate of iron may be in the range of 75 to 85 weight % of iron values.
- the copper slag from any copper industry is analyses for its chemical composition.
- the chunks of copper slag was broken into small lumps and ground into small granulated particles in the size range of 2 to 15 mm.
- iron oxide i.e. FeO, Fe 2 O 3 , Fe 3 O 4 and chemical composition of iron and silica in the copper slag
- the amount of reductant and fluxing material is calculated.
- Granulated slag, reductant and the fluxes are mixed in a mixing muller for a time period of 2 to 5 min in order to get a homogenous mixture.
- a molten metal pool bath was created and a calculated amount of reductant was added.
- Novelty of the present invention is process for the preparation of value added products viz grinding grade cast iron using copper slag generated during the processing of copper concentrate which otherwise is considered as a waste.
- Other novel features of the inventions are creating a homogeneous mixture of slag, reductant and flux so that reaction kinetics is more than conventional process.
- the reductant is used in such a way so that maximum recovery of iron can take place.
- the granulated copper slag containing Cu(weight %): 0.523, Silica(weight %): 30.1, Lime(weight %): 3.8, Fe(weight %): 42.8, Cd(ppm): 0.003, Co(ppm): 5.6, Ni(ppm): 0.58, Pb(ppm): 10.9 was selected from the copper slag generated during the processing of copper containing concentrate from a copper producing industry.
- 10 kg of granulated copper slag of size range 5 to 10 mm, lime of amount 2.5 kg and graphite powder of amount 0.6 kg was mixed in a muller for two minutes. 5 kg of pig iron was melted in direct arc furnace. In the molten pool, 0.2 kg of graphite was added.
- the copper slag mixture was added slowly into the molten pool.
- the melt temperature was maintained at 1370 to 1390° C. and the reduction time was around 1 h.
- the slag was skimmed off from the furnace and the melt was tapped to a ladle and finally poured in moulds as well as in standard test blocks. Recovery of iron from the slag was about 85 weight %.
- the granulated copper slag containing Cu(weight %): 0.523, Silica(weight %): 30.1, Lime(weight %): 3.8, Fe(weight %): 42.8, Cd(ppm): 0.003, Co(ppm): 5.6, Ni(ppm): 0.58, Pb(ppm): 10.9 was selected from the copper slag generated during the processing of copper containing concentrate from a copper producing industry.
- the copper slag containing Cu(weight %): 0.227, Silica(weight %): 30.9, Lime(weight %) 0.41, Fe(weight %): 36.89, Cd(ppm): 0.003, Co(ppm): 2.72, Ni(ppm): 0.37, Pb(ppm): 5.17 was selected from the copper slag generated during the processing of copper containing concentrate from a copper producing industry. 10 kg of copper slag of size range 5 to 10 mm, lime of amount 3.0 kg and graphite powder of amount 0.5 kg was mixed in a muller for two min. 4 kg of pig iron was melted in direct arc furnace. In the molten pool 0.3 kg of graphite was added.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN3331/DEL/2005 | 2005-12-09 | ||
| IN3331DE2005 | 2005-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20070283785A1 true US20070283785A1 (en) | 2007-12-13 |
Family
ID=36499109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/386,575 Abandoned US20070283785A1 (en) | 2005-12-09 | 2006-03-21 | Process for recovery of iron from copper slag |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070283785A1 (fr) |
| KR (1) | KR20080081258A (fr) |
| AU (1) | AU2005338902B2 (fr) |
| CA (1) | CA2632530A1 (fr) |
| MY (1) | MY144628A (fr) |
| WO (1) | WO2007066350A1 (fr) |
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| CN101886154A (zh) * | 2010-07-02 | 2010-11-17 | 昆明理工大学 | 一种铜渣与铁矿石混合熔融还原制得低铜铁水的方法 |
| CN101921919A (zh) * | 2010-09-09 | 2010-12-22 | 山东天力干燥设备有限公司 | 一种熔融铜渣综合利用工艺及其系统 |
| CN103060502A (zh) * | 2013-01-14 | 2013-04-24 | 白银龙家丰金属渣综合利用有限公司 | 利用铜废渣一次性还原炼硅酸铁工艺 |
| CN103614607A (zh) * | 2013-09-12 | 2014-03-05 | 昆明理工大学 | 一种含镍物料作用下热态铜渣熔融还原制不锈钢原料的方法 |
| CN104185687A (zh) * | 2012-09-07 | 2014-12-03 | 韩国地质资源研究院 | 通过物理和化学分离技术从包括铜、锌和铅的有色金属的冶炼过程中排放的有色金属废渣中分离和回收铁的方法 |
| JP2016191120A (ja) * | 2015-03-31 | 2016-11-10 | Ｊｘ金属株式会社 | 非鉄製錬スラグの処理方法 |
| CN112680600A (zh) * | 2020-12-17 | 2021-04-20 | 有研资源环境技术研究院(北京)有限公司 | 一种从海绵铜渣中生物氧化回收铜和富集贵金属的工艺 |
| US11834728B2 (en) | 2021-01-26 | 2023-12-05 | Nucor Corporation | Method and system of reducing non-ferrous metal content of scrap steel |
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| FI124912B (fi) * | 2012-04-16 | 2015-03-31 | Outotec Oyj | Menetelmä ei-rautametallien metallurgisten kuonien käsittelemiseksi |
| KR101295157B1 (ko) * | 2013-04-30 | 2013-08-09 | 한국지질자원연구원 | 코발트 정광의 처리방법 |
| DE102014010442A1 (de) * | 2014-07-11 | 2016-01-14 | Aurubis Ag | Verfahren und Vorrichtung zur Aufbereitung von Eisensilikatgestein |
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| CN110578028B (zh) * | 2019-10-10 | 2021-06-29 | 尚明东 | 一种基于炼铜废渣提炼铁的方法 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1544048A (en) * | 1921-11-23 | 1925-06-30 | Stout Harry Howard | Treatment of copper metallurgical slag |
| US1822588A (en) * | 1929-01-14 | 1931-09-08 | United Verde Copper Company | Recovering copper from slags |
| US3157490A (en) * | 1961-10-23 | 1964-11-17 | Pullman Inc | Method for refining of metals |
| US4110107A (en) * | 1977-06-16 | 1978-08-29 | The United States Of America As Represented By The Secretary Of The Interior | Process for reducing molten furnace slags by carbon injection |
| FI71770C (fi) * | 1985-05-31 | 1987-02-09 | Outokumpu Oy | Reducering av smaelt metallurgiskt slagg kontinuerligt i en elektrisk ugn. |
-
2005
- 2005-12-29 AU AU2005338902A patent/AU2005338902B2/en not_active Ceased
- 2005-12-29 KR KR1020087013405A patent/KR20080081258A/ko not_active Ceased
- 2005-12-29 CA CA 2632530 patent/CA2632530A1/fr not_active Abandoned
- 2005-12-29 WO PCT/IN2005/000452 patent/WO2007066350A1/fr not_active Ceased
-
2006
- 2006-03-21 US US11/386,575 patent/US20070283785A1/en not_active Abandoned
- 2006-03-28 MY MYPI20061365 patent/MY144628A/en unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886154A (zh) * | 2010-07-02 | 2010-11-17 | 昆明理工大学 | 一种铜渣与铁矿石混合熔融还原制得低铜铁水的方法 |
| CN101921919A (zh) * | 2010-09-09 | 2010-12-22 | 山东天力干燥设备有限公司 | 一种熔融铜渣综合利用工艺及其系统 |
| CN104185687A (zh) * | 2012-09-07 | 2014-12-03 | 韩国地质资源研究院 | 通过物理和化学分离技术从包括铜、锌和铅的有色金属的冶炼过程中排放的有色金属废渣中分离和回收铁的方法 |
| CN103060502A (zh) * | 2013-01-14 | 2013-04-24 | 白银龙家丰金属渣综合利用有限公司 | 利用铜废渣一次性还原炼硅酸铁工艺 |
| CN103614607A (zh) * | 2013-09-12 | 2014-03-05 | 昆明理工大学 | 一种含镍物料作用下热态铜渣熔融还原制不锈钢原料的方法 |
| JP2016191120A (ja) * | 2015-03-31 | 2016-11-10 | Ｊｘ金属株式会社 | 非鉄製錬スラグの処理方法 |
| CN112680600A (zh) * | 2020-12-17 | 2021-04-20 | 有研资源环境技术研究院(北京)有限公司 | 一种从海绵铜渣中生物氧化回收铜和富集贵金属的工艺 |
| US11834728B2 (en) | 2021-01-26 | 2023-12-05 | Nucor Corporation | Method and system of reducing non-ferrous metal content of scrap steel |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2005338902A1 (en) | 2007-06-14 |
| CA2632530A1 (fr) | 2007-06-14 |
| AU2005338902B2 (en) | 2011-09-01 |
| MY144628A (en) | 2011-10-14 |
| WO2007066350A1 (fr) | 2007-06-14 |
| KR20080081258A (ko) | 2008-09-09 |
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