EP0059806A1 - Verfahren zum Aufarbeiten von Anodenschlamm - Google Patents

Verfahren zum Aufarbeiten von Anodenschlamm Download PDF

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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
Application number
EP19810301045
Other languages
English (en)
French (fr)
Other versions
EP0059806B1 (de
Inventor
Ying-Chu Hoh
Bao-Dein Lee
Tieh Ma
Wen-Shou Chuang
Wei-Ko Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Nuclear Energy Research
Original Assignee
Institute of Nuclear Energy Research
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institute of Nuclear Energy Research filed Critical Institute of Nuclear Energy Research
Priority to DE1981301045 priority Critical patent/DE59806T1/de
Priority to EP19810301045 priority patent/EP0059806B1/de
Priority to DE8181301045T priority patent/DE3167023D1/de
Publication of EP0059806A1 publication Critical patent/EP0059806A1/de
Application granted granted Critical
Publication of EP0059806B1 publication Critical patent/EP0059806B1/de
Expired legal-status Critical Current

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    • 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.

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  • 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)
EP19810301045 1981-03-12 1981-03-12 Verfahren zum Aufarbeiten von Anodenschlamm Expired EP0059806B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1981301045 DE59806T1 (de) 1981-03-12 1981-03-12 Verfahren zum aufarbeiten von anodenschlamm.
EP19810301045 EP0059806B1 (de) 1981-03-12 1981-03-12 Verfahren zum Aufarbeiten von Anodenschlamm
DE8181301045T DE3167023D1 (en) 1981-03-12 1981-03-12 Anode slime treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19810301045 EP0059806B1 (de) 1981-03-12 1981-03-12 Verfahren zum Aufarbeiten von Anodenschlamm

Publications (2)

Publication Number Publication Date
EP0059806A1 true EP0059806A1 (de) 1982-09-15
EP0059806B1 EP0059806B1 (de) 1984-11-07

Family

ID=8188237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810301045 Expired EP0059806B1 (de) 1981-03-12 1981-03-12 Verfahren zum Aufarbeiten von Anodenschlamm

Country Status (2)

Country Link
EP (1) EP0059806B1 (de)
DE (2) DE59806T1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001021846A1 (en) * 1999-09-17 2001-03-29 Interpole Limited Recovery of metallic lead and salt value from lead ores or from spent lead-acid storage batteries with acetic acid lixiviant
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)

* Cited by examiner, † Cited by third party
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 (de) * 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 (de) * 1979-06-14 1981-01-07 Institute Of Nuclear Energy Research Nassmetallurgisches Verfahren zur Gewinnung wertvoller Metalle aus Anoden-Schlamm
DD146712A1 (de) * 1979-10-19 1981-02-25 Manfred Lux Verfahren zur hydrometallurgischen aufarbeitung von anodenschlamm der kupferelektrolyse

Patent Citations (10)

* Cited by examiner, † Cited by third party
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 (de) * 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 (de) * 1979-06-14 1981-01-07 Institute Of Nuclear Energy Research Nassmetallurgisches Verfahren zur Gewinnung wertvoller Metalle aus Anoden-Schlamm
DD146712A1 (de) * 1979-10-19 1981-02-25 Manfred Lux Verfahren zur hydrometallurgischen aufarbeitung von anodenschlamm der kupferelektrolyse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001021846A1 (en) * 1999-09-17 2001-03-29 Interpole Limited Recovery of metallic lead and salt value from lead ores or from spent lead-acid storage batteries with acetic acid lixiviant
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
EP0059806B1 (de) 1984-11-07
DE3167023D1 (en) 1984-12-13
DE59806T1 (de) 1983-04-14

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