JPS5773139A - Treatment of copper electrolytic slime - Google Patents

Treatment of copper electrolytic slime

Info

Publication number
JPS5773139A
JPS5773139A JP14850680A JP14850680A JPS5773139A JP S5773139 A JPS5773139 A JP S5773139A JP 14850680 A JP14850680 A JP 14850680A JP 14850680 A JP14850680 A JP 14850680A JP S5773139 A JPS5773139 A JP S5773139A
Authority
JP
Japan
Prior art keywords
copper
slime
selenium
sulfuric acid
freed
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.)
Pending
Application number
JP14850680A
Other languages
Japanese (ja)
Inventor
Toshimasa Iio
Toyokazu Okubo
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.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co 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 Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP14850680A priority Critical patent/JPS5773139A/en
Publication of JPS5773139A publication Critical patent/JPS5773139A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To efficiently extract and separate most of copper and selenium in copper electrolytic slime by reducing the free sulfuric acid concn. of the slime, oxidizing the slime with oxygen at a high temp. under pressure, and carrying out extraction with sulfuric acid.
CONSTITUTION: Copper electrolytic slime is freed of liquor and washed in water or neutralized to reduce the free sulfuric acid concn. to ≤25g/l. This slime is charged into a pressure reactor in the form of an aqueous slurry and oxidized at a high temp. such as about 150W300°C under a high partial pressure of oxygen such as ≥about 4kg/cm2. By this reaction most of copper and selenium in the slime are converted into acid-soluble compounds. Sulfuric acid is then added and agitated to extract copper and selenium. This liq. extract is freed of silver and treated with a reducing agent such as gaseous SO2 to recover selenium as a simple substance. The remaining liq. contg. copper is freed of tellurium and fed to a blue vitriol process to recover copper. The extraction residue contains little copper and selenium, so it is dried and supplied to an ordinary dissolving and presipitating process.
COPYRIGHT: (C)1982,JPO&Japio
JP14850680A 1980-10-23 1980-10-23 Treatment of copper electrolytic slime Pending JPS5773139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14850680A JPS5773139A (en) 1980-10-23 1980-10-23 Treatment of copper electrolytic slime

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14850680A JPS5773139A (en) 1980-10-23 1980-10-23 Treatment of copper electrolytic slime

Publications (1)

Publication Number Publication Date
JPS5773139A true JPS5773139A (en) 1982-05-07

Family

ID=15454278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14850680A Pending JPS5773139A (en) 1980-10-23 1980-10-23 Treatment of copper electrolytic slime

Country Status (1)

Country Link
JP (1) JPS5773139A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271909A (en) * 1991-08-15 1993-12-21 Noranda, Inc. Method of tellurium separation from copper electrorefining slime

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271909A (en) * 1991-08-15 1993-12-21 Noranda, Inc. Method of tellurium separation from copper electrorefining slime

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