EP0059806A1 - Procédé de traitement de boue anodique - Google Patents
Procédé de traitement de boue anodique Download PDFInfo
- Publication number
- EP0059806A1 EP0059806A1 EP19810301045 EP81301045A EP0059806A1 EP 0059806 A1 EP0059806 A1 EP 0059806A1 EP 19810301045 EP19810301045 EP 19810301045 EP 81301045 A EP81301045 A EP 81301045A EP 0059806 A1 EP0059806 A1 EP 0059806A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solution
- slime
- lead
- resulting
- leaching
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 35
- 238000002386 leaching Methods 0.000 claims abstract description 26
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005695 Ammonium acetate Substances 0.000 claims abstract description 15
- 229940043376 ammonium acetate Drugs 0.000 claims abstract description 15
- 235000019257 ammonium acetate Nutrition 0.000 claims abstract description 15
- 229940046892 lead acetate Drugs 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- 239000010970 precious metal Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000003556 assay Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000010946 fine silver Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- C22B13/00—Obtaining lead
- C22B13/06—Refining
- C22B13/10—Separating metals from lead by crystallising, e.g. by Pattison process
-
- 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
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
Definitions
- This invention relates to a process for recovering lead from anode slime in order to upgrade the slime.
- the leached slimes are then melted down in a small reverberatory (Dor6) furnace in which the impurities are oxidized, leaving so-called Dore metal containing the precious metals, silver and gold.
- Dore metal is then pasted to recover fine gold, fine silver, and any other precious metal present in the original slime.
- the present invention provides a process for upgrading anode slime containing lead and for recovering lead from the anode slime by leaching, in which leaching is carried out in a plurality of stages and the resulting solutions, together containing most of the lead content of the slime, are combined to form a solution from which lead acetate crystallizes.
- the process comprises the following steps:
- the solution resulting from step (b) preferably contains about 46% or more of the initial lead content of the slime.
- the amount of lead extracted in the two steps is approximately equal, but the first step extracts slightly more than the second.
- the slime is leached with a solution of ammonium acetate at a temperature not exceeding 80°C.
- a solution of ammonium acetate at a temperature not exceeding 80°C.
- lead dissolution is maximized and dissolution of the other metal is minimized.
- the leach solutions used in the two steps are preferably substantially identical but may be different, depending on the practical circumstances.
- the process can be utilized to upgrade any type of anode slime or mud produced in electrolytic refining of copper.
- the optimum processing parameters for any particule slime can be determined by making test runs based on the particular composition of such slime.
- the leaching of a slime to remove lead has need for a shorter period of time for those slimes containing low amounts of lead, and correspondingly a longer leach time for those slimes containing high amounts of lead.
- Leaching may be effected under agitation in any conventional leaching vessel with an aqueous ammonium acetate solution with concentration greater than 0.1 mole dm -3 , preferably from about 2 to 10 mole dm- 3 .
- concentration greater than 0.1 mole dm -3 , preferably from about 2 to 10 mole dm- 3 .
- the particular amounts of ammonium acetate used depend upon the concentration of lead in the slime be processed. For conventional slimes, amounts within the above range are adequate for an effective leach.
- the leaching solution is separated from the undissolved slime. This can be accomplished by any conventional technique, preferably by filtration.
- the leach slurry can be thickened prior to filtration or filtered directly from the leach.
- the final solid residue is dried and processed for shipment to plants for recovery of precious metals and other metal values. Because the lead has been removed, the dried processed anode slime is acceptable for treatment in recovery plants for selenium, tellurium, tin, silver, gold, and the like.
- the combined clarified or filtered solution is purified by the removal of the lead content by crystallization.
- the crystallized lead acetate from this purification step is recovered through filtration, decantation, or any solid-liquid separation techniques.
- the resultant clarified or filtered solution can be recycled back to the secondary leaching step for reuse, as shown in the drawing.
- a decopperized anode slime leaching experiment was carried out in a flask equipped with an agitator, a condenser, heating apparatus, and a temperature indicator and controller.
- the sample of anode slime used possessed the following assay:
- the lead, silver, copper, selenium, and tin containing solution was heated until the total volume was reduced to one-third of the initial volume and then cooled down to below 40°C. Meanwhile, lead acetate crystallized out from the mother liquor. After filtration and drying, lead acetate with a purity of greater than 99.9% was obtained.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Treatment Of Sludge (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19810301045 EP0059806B1 (fr) | 1981-03-12 | 1981-03-12 | Procédé de traitement de boue anodique |
| DE8181301045T DE3167023D1 (en) | 1981-03-12 | 1981-03-12 | Anode slime treatment process |
| DE1981301045 DE59806T1 (de) | 1981-03-12 | 1981-03-12 | Verfahren zum aufarbeiten von anodenschlamm. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19810301045 EP0059806B1 (fr) | 1981-03-12 | 1981-03-12 | Procédé de traitement de boue anodique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0059806A1 true EP0059806A1 (fr) | 1982-09-15 |
| EP0059806B1 EP0059806B1 (fr) | 1984-11-07 |
Family
ID=8188237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19810301045 Expired EP0059806B1 (fr) | 1981-03-12 | 1981-03-12 | Procédé de traitement de boue anodique |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0059806B1 (fr) |
| DE (2) | DE3167023D1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021846A1 (fr) * | 1999-09-17 | 2001-03-29 | Interpole Limited | Recuperation de sels et de plomb metal a valeur marchande a partir de minerais de plomb ou d'accumulateurs au plomb uses avec une solution de lixiviation a base d'acide acetique |
| CN112981111A (zh) * | 2021-02-09 | 2021-06-18 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | 一种铅阳极泥中选择性回收铜的方法和铅阳极泥回收金属的方法 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1916303A (en) * | 1932-05-03 | 1933-07-04 | Leo P Curtin | Method of converting roasted lead ores and bag-house dust directly into lead salts |
| US2328089A (en) * | 1940-09-14 | 1943-08-31 | Lillian R Birkenstein | Recovery of soluble lead salts from insoluble lead compounds |
| DE750429C (de) * | 1940-12-13 | 1944-12-21 | Verfahren zur Aufarbeitung bleiantimonhaltiger Huettenprodukte einschliesslich der Nebenprodukte, wie Kraetzen bzw. Abstriche | |
| DE1948300B2 (de) * | 1969-09-24 | 1971-02-18 | Norddeutsche Affinerie | Verfahren zum aufschliessen von anodenschlamm aus der kupferelektrolyse |
| FR2086064A1 (fr) * | 1970-04-14 | 1971-12-31 | American Metal Climax Inc | |
| US4002544A (en) * | 1975-04-03 | 1977-01-11 | Outokumpu Oy | Hydrometallurgical process for the recovery of valuable components from the anode slime produced in the electrolytical refining of copper |
| US4047939A (en) * | 1975-06-13 | 1977-09-13 | Noranda Mines Limited | Slimes treatment process |
| US4229270A (en) * | 1978-04-12 | 1980-10-21 | The International Nickel Co., Inc. | Process for the recovery of metal values from anode slimes |
| EP0020826A1 (fr) * | 1979-06-14 | 1981-01-07 | Institute Of Nuclear Energy Research | Procédé hydrométallurgique pour la récupération de métaux précieux à partir de boues de raffinage électrolytique |
| DD146712A1 (de) * | 1979-10-19 | 1981-02-25 | Manfred Lux | Verfahren zur hydrometallurgischen aufarbeitung von anodenschlamm der kupferelektrolyse |
-
1981
- 1981-03-12 DE DE8181301045T patent/DE3167023D1/de not_active Expired
- 1981-03-12 EP EP19810301045 patent/EP0059806B1/fr not_active Expired
- 1981-03-12 DE DE1981301045 patent/DE59806T1/de active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1916303A (en) * | 1932-05-03 | 1933-07-04 | Leo P Curtin | Method of converting roasted lead ores and bag-house dust directly into lead salts |
| US2328089A (en) * | 1940-09-14 | 1943-08-31 | Lillian R Birkenstein | Recovery of soluble lead salts from insoluble lead compounds |
| DE750429C (de) * | 1940-12-13 | 1944-12-21 | Verfahren zur Aufarbeitung bleiantimonhaltiger Huettenprodukte einschliesslich der Nebenprodukte, wie Kraetzen bzw. Abstriche | |
| DE1948300B2 (de) * | 1969-09-24 | 1971-02-18 | Norddeutsche Affinerie | Verfahren zum aufschliessen von anodenschlamm aus der kupferelektrolyse |
| FR2086064A1 (fr) * | 1970-04-14 | 1971-12-31 | American Metal Climax Inc | |
| US4002544A (en) * | 1975-04-03 | 1977-01-11 | Outokumpu Oy | Hydrometallurgical process for the recovery of valuable components from the anode slime produced in the electrolytical refining of copper |
| US4047939A (en) * | 1975-06-13 | 1977-09-13 | Noranda Mines Limited | Slimes treatment process |
| US4229270A (en) * | 1978-04-12 | 1980-10-21 | The International Nickel Co., Inc. | Process for the recovery of metal values from anode slimes |
| EP0020826A1 (fr) * | 1979-06-14 | 1981-01-07 | Institute Of Nuclear Energy Research | Procédé hydrométallurgique pour la récupération de métaux précieux à partir de boues de raffinage électrolytique |
| DD146712A1 (de) * | 1979-10-19 | 1981-02-25 | Manfred Lux | Verfahren zur hydrometallurgischen aufarbeitung von anodenschlamm der kupferelektrolyse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021846A1 (fr) * | 1999-09-17 | 2001-03-29 | Interpole Limited | Recuperation de sels et de plomb metal a valeur marchande a partir de minerais de plomb ou d'accumulateurs au plomb uses avec une solution de lixiviation a base d'acide acetique |
| CN112981111A (zh) * | 2021-02-09 | 2021-06-18 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | 一种铅阳极泥中选择性回收铜的方法和铅阳极泥回收金属的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3167023D1 (en) | 1984-12-13 |
| EP0059806B1 (fr) | 1984-11-07 |
| DE59806T1 (de) | 1983-04-14 |
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| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| AK | Designated contracting states |
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| TCNL | Nl: translation of patent claims filed | ||
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| STAA | Information on the status of an ep patent application or granted ep patent |
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