JPS57203729A - Regenerating and refining method of copper or copper alloy using powder and granular copper oxide as oxidation-reduction agent - Google Patents

Regenerating and refining method of copper or copper alloy using powder and granular copper oxide as oxidation-reduction agent

Info

Publication number
JPS57203729A
JPS57203729A JP8795881A JP8795881A JPS57203729A JP S57203729 A JPS57203729 A JP S57203729A JP 8795881 A JP8795881 A JP 8795881A JP 8795881 A JP8795881 A JP 8795881A JP S57203729 A JPS57203729 A JP S57203729A
Authority
JP
Japan
Prior art keywords
copper
impurities
melted
copper oxide
oxidation
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
JP8795881A
Other languages
Japanese (ja)
Inventor
Teruie Fujiwara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP8795881A priority Critical patent/JPS57203729A/en
Publication of JPS57203729A publication Critical patent/JPS57203729A/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

Abstract

PURPOSE: To improve the yield of products and to obtain copper-based metals of high purity by using powder and granular copper oxide as an oxidation-reduction agent for copper-based metallic scraps contg. impurities.
CONSTITUTION: Scraps such as turnings of copper or copper alloys stuck with cutting oils or the like produced in machining, cutting, etc. are melted in a furnace, and copper oxide which is melted by heating is added at a suitable amt. into the molten liquid thereof under agitation, whereby these are melted. The oxygen liberated from the copper oxide and the carbon and hydrogen in impurities are bound and released as CO2 and H2O. The other impurities are removed as slag, after which the molten liquid is cooled, whereby the reproduced copper or copper alloy of high purity is obtained. If SiO2 is contained as an impurity, the SiC of a high melting temp. is converted to CO2 and SiO2 by the oxygen liberated from the copper oxide and the melted SiO2 is removed as slag together with the other impurities.
COPYRIGHT: (C)1982,JPO&Japio
JP8795881A 1981-06-08 1981-06-08 Regenerating and refining method of copper or copper alloy using powder and granular copper oxide as oxidation-reduction agent Pending JPS57203729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8795881A JPS57203729A (en) 1981-06-08 1981-06-08 Regenerating and refining method of copper or copper alloy using powder and granular copper oxide as oxidation-reduction agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8795881A JPS57203729A (en) 1981-06-08 1981-06-08 Regenerating and refining method of copper or copper alloy using powder and granular copper oxide as oxidation-reduction agent

Publications (1)

Publication Number Publication Date
JPS57203729A true JPS57203729A (en) 1982-12-14

Family

ID=13929371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8795881A Pending JPS57203729A (en) 1981-06-08 1981-06-08 Regenerating and refining method of copper or copper alloy using powder and granular copper oxide as oxidation-reduction agent

Country Status (1)

Country Link
JP (1) JPS57203729A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04120221A (en) * 1990-09-11 1992-04-21 Kobe Steel Ltd Method for melting copper or copper alloy scrap
US10584399B2 (en) 2017-07-19 2020-03-10 Blueoak Arkansas Process and system for recycling E-waste material
CN111218561A (en) * 2019-11-11 2020-06-02 宁波长振铜业有限公司 Composite refining agent for reducing impurity element aluminum in waste brass and use method thereof
CN113025820A (en) * 2019-12-25 2021-06-25 广东华劲金属型材有限公司 Environment-friendly recasting aluminum alloy ingot formula and preparation process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04120221A (en) * 1990-09-11 1992-04-21 Kobe Steel Ltd Method for melting copper or copper alloy scrap
US10584399B2 (en) 2017-07-19 2020-03-10 Blueoak Arkansas Process and system for recycling E-waste material
CN111218561A (en) * 2019-11-11 2020-06-02 宁波长振铜业有限公司 Composite refining agent for reducing impurity element aluminum in waste brass and use method thereof
CN113025820A (en) * 2019-12-25 2021-06-25 广东华劲金属型材有限公司 Environment-friendly recasting aluminum alloy ingot formula and preparation process

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