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CA2002489A1 - Process for the manufacture of copper arsenate - Google Patents

Process for the manufacture of copper arsenate

Info

Publication number
CA2002489A1
CA2002489A1 CA 2002489 CA2002489A CA2002489A1 CA 2002489 A1 CA2002489 A1 CA 2002489A1 CA 2002489 CA2002489 CA 2002489 CA 2002489 A CA2002489 A CA 2002489A CA 2002489 A1 CA2002489 A1 CA 2002489A1
Authority
CA
Canada
Prior art keywords
copper
solution
arsenate
sodium
arsenic
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
CA 2002489
Other languages
French (fr)
Other versions
CA2002489C (en
Inventor
Daniel A. D. Boateng
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.)
Teck Metals Ltd
Original Assignee
Teck Metals Ltd
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 Teck Metals Ltd filed Critical Teck Metals Ltd
Priority to CA 2002489 priority Critical patent/CA2002489C/en
Publication of CA2002489A1 publication Critical patent/CA2002489A1/en
Application granted granted Critical
Publication of CA2002489C publication Critical patent/CA2002489C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G28/00—Compounds of arsenic
    • C01G28/02—Arsenates; Arsenites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

In a process for the manufacture of copper arsenate, an arsenic-containing material is subjected to an oxidative pressure leach with sodium hydroxide forming a leach solution containing sodium arsenate. Sodium arsenate solution is mixed with a solution of copper sulfate for the formation of a copper and arsenic-containing solution without the precipitation of copper arsenate. The copper and arsenic-containing solution is treated for the precipitation of copper arsenate with formation of sodium sulfate solution. At least one of the sodium arsenate-containing solution and the sodium sulfate solution is subjected to electrolysis with membranes for at least partial conversion to arsenic acid and sulfuric acid, respectively, and sodium hydroxide. The generated sodium hydroxide is used in the process, the sulfuric acid may be a by-product or is recycled for use in the preparation of copper sulfate solution, and the arsenic acid is used instead of sodium arsenate in the formation of the copper and arsenic-containing solution.
CA 2002489 1989-11-08 1989-11-08 Process for the manufacture of copper arsenate Expired - Lifetime CA2002489C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2002489 CA2002489C (en) 1989-11-08 1989-11-08 Process for the manufacture of copper arsenate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2002489 CA2002489C (en) 1989-11-08 1989-11-08 Process for the manufacture of copper arsenate

Publications (2)

Publication Number Publication Date
CA2002489A1 true CA2002489A1 (en) 1991-05-08
CA2002489C CA2002489C (en) 1999-01-12

Family

ID=4143501

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2002489 Expired - Lifetime CA2002489C (en) 1989-11-08 1989-11-08 Process for the manufacture of copper arsenate

Country Status (1)

Country Link
CA (1) CA2002489C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014022946A1 (en) 2012-08-10 2014-02-13 Prokumet Spa Method for processing smelting dust by means of tricarboxylic acid
CN112028132A (en) * 2020-09-13 2020-12-04 桂林理工大学 Method for synthesizing arsenopyrite-containing solid solution by precipitation
CN113584313A (en) * 2021-07-28 2021-11-02 云南驰宏资源综合利用有限公司 Method for producing coarse copper powder from high-arsenic copper bismuth slag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014022946A1 (en) 2012-08-10 2014-02-13 Prokumet Spa Method for processing smelting dust by means of tricarboxylic acid
CN112028132A (en) * 2020-09-13 2020-12-04 桂林理工大学 Method for synthesizing arsenopyrite-containing solid solution by precipitation
CN113584313A (en) * 2021-07-28 2021-11-02 云南驰宏资源综合利用有限公司 Method for producing coarse copper powder from high-arsenic copper bismuth slag

Also Published As

Publication number Publication date
CA2002489C (en) 1999-01-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202