GB991094A - Improvements in method for reducing copper oxide - Google Patents

Improvements in method for reducing copper oxide

Info

Publication number
GB991094A
GB991094A GB48465/63A GB4846563A GB991094A GB 991094 A GB991094 A GB 991094A GB 48465/63 A GB48465/63 A GB 48465/63A GB 4846563 A GB4846563 A GB 4846563A GB 991094 A GB991094 A GB 991094A
Authority
GB
United Kingdom
Prior art keywords
copper
sulphide
oxide
sulphur
2hco31
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.)
Expired
Application number
GB48465/63A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB991094A publication Critical patent/GB991094A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00—Compounds of copper
    • C01G3/02—Oxides; Hydroxides
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0002—Preliminary treatment
    • C22B15/001—Preliminary treatment with modification of the copper constituent
    • C22B15/0021—Preliminary treatment with modification of the copper constituent by reducing in gaseous or solid state
    • C22B15/0023—Segregation
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • C22B15/0078—Leaching or slurrying with ammoniacal solutions, e.g. ammonium hydroxide
    • 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
    • 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

A process of reducing cupric oxide to cuprous oxide comprises heating the cupric oxide with a sulphur containing reducing agent (sulphur or sulphide of copper, iron, zinc, tin or lead) in the presence of an alkali metal, or an alkaline earth metal, chloride in a protective atmosphere (e.g. steam), the temperature being 250-750 DEG C. The leaching of copper from ores using a copper ammonium carbonate leach solution in the presence of ammonia is referred to, the reaction going according to the following equations: Cu + Cu(NH3)4++ + 2HCO31--> Cu2(NH3)4++ + 2HCO31 the product is then decomposed by heat as follows: Cu2(NH3)4++ + 2HCO31--> Cu2Oppt+ 4NH3 + 2CO2 + H2O The preparation of copper sulphide is also referred to, there being two reactions which occur simultaneously and may be represented by the following equations: 2Cu + S + C + O2 --> Cu2S + CO2 Na2SO4 + 2C --> Na2S + 2CO2. It is stated that this mixed sulphide, which has a lower melting point than copper sulphide alone, may be used in the process of the invention.ALSO:A process for preparing copper from cupric or cuprous oxide comprises heating the oxide with a sulphur containing reducing agent (sulphur or sulphides of iron, copper, zinc, lead or tin) in the presence of an alkali metal, or alkaline earth metal, chloride in a protective atmosphere (e.g. steam). The temperature may be 250-750 DEG C. The preparation of cuprous sulphide, the leaching of copper from ores using a copper ammonium carbonate leach solution and the reduction of cupric oxide to cuprous oxide by the method of the invention is also referred to (see Division C1).
GB48465/63A 1963-01-02 1963-12-09 Improvements in method for reducing copper oxide Expired GB991094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US249036A US3186833A (en) 1963-01-02 1963-01-02 Method for reducing copper oxide

Publications (1)

Publication Number Publication Date
GB991094A true GB991094A (en) 1965-05-05

Family

ID=22941776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48465/63A Expired GB991094A (en) 1963-01-02 1963-12-09 Improvements in method for reducing copper oxide

Country Status (8)

Country Link
US (1) US3186833A (en)
BE (1) BE641954A (en)
CH (1) CH471227A (en)
CY (1) CY341A (en)
DE (1) DE1184090B (en)
ES (1) ES294052A1 (en)
GB (1) GB991094A (en)
NL (2) NL143993B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104495908A (en) * 2014-12-31 2015-04-08 湖南稀土金属材料研究院 Preparation method of cuprous sulfide powder, and cuprous sulfide powder

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403983A (en) * 1965-01-11 1968-10-01 Mallinckrodt Chemical Works Steam distillation of metal values in solution
US3607023A (en) * 1968-09-03 1971-09-21 Gen Electric Process for producing copper oxide
US3652229A (en) * 1969-03-12 1972-03-28 Zane L Burke Apparatus for production of metal oxides
US3630722A (en) * 1969-10-13 1971-12-28 Frank D Chew Copper-refining process
US3647423A (en) * 1969-10-27 1972-03-07 Floyd Acoveno Production of copper, nickel oxide and zinc oxide
US3775097A (en) * 1971-04-15 1973-11-27 Copper Range Co Method of extracting a metal from a material containing the metal in elemental form
US3791812A (en) * 1971-12-20 1974-02-12 Morton Norwich Products Inc Process for the recovery of non-ferrous metal values from sulfide ores and the reduction of gaseous emissions to the atmosphere therefrom
CN100408234C (en) * 2005-10-27 2008-08-06 中南大学 Production of cuprous oxide powder and bronze powder using sulfur dioxide reduction method
JP5926644B2 (en) * 2011-09-30 2016-05-25 Ｄｏｗａエレクトロニクス株式会社 Cuprous oxide powder and method for producing the same
CN115212896B (en) * 2022-07-26 2023-07-14 河北工业大学 Nano-porous copper-loaded hepta copper tetrasulfide@cuprous oxide nanowire cluster composite material and preparation method and application thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA514098A (en) * 1955-06-28 Schlecht Leo Processing of sulfidic raw materials
CA634006A (en) * 1962-01-02 Goesele Wilhelm Treatment of oxidic iron materials with chlorine
US919130A (en) * 1908-09-19 1909-04-20 Calvin Amory Stevens Process of extracting copper from ores.
US986508A (en) * 1910-04-21 1911-03-14 Oscar Krauth Process for the recovery of copper from porphyry ores and the like.
US1103258A (en) * 1911-12-11 1914-07-14 Carl Adolf Brackelsberg Process of manufacturing pure iron or manganese metal from pure or impure iron or manganese-metal oxids.
DE401781C (en) * 1921-02-14 1924-09-09 Harold Wade Process for the treatment of ores containing oxidic copper compounds
US2385066A (en) * 1944-10-18 1945-09-18 Harshaw Chem Corp Preparation of red copper oxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104495908A (en) * 2014-12-31 2015-04-08 湖南稀土金属材料研究院 Preparation method of cuprous sulfide powder, and cuprous sulfide powder
CN104495908B (en) * 2014-12-31 2016-06-08 湖南稀土金属材料研究院 Cuprous sulfide raw powder's production technology and cuprous sulfide powder body

Also Published As

Publication number Publication date
NL143993B (en) 1974-11-15
US3186833A (en) 1965-06-01
BE641954A (en) 1964-04-16
CY341A (en) 1966-02-13
NL301942A (en) 1900-01-01
DE1184090B (en) 1964-12-23
CH471227A (en) 1969-04-15
ES294052A1 (en) 1964-03-16

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