GB1351448A - Copper recovery - Google Patents

Copper recovery

Info

Publication number
GB1351448A
GB1351448A GB1351448DA GB1351448A GB 1351448 A GB1351448 A GB 1351448A GB 1351448D A GB1351448D A GB 1351448DA GB 1351448 A GB1351448 A GB 1351448A
Authority
GB
United Kingdom
Prior art keywords
copper
insulation
bath
aug
aqueous solution
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
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.)
IMI Refinery Holdings Ltd
Original Assignee
IMI Refinery Holdings 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 IMI Refinery Holdings Ltd filed Critical IMI Refinery Holdings Ltd
Publication of GB1351448A publication Critical patent/GB1351448A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B15/00—Apparatus or processes for salvaging material from cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B15/00—Apparatus or processes for salvaging material from cables
    • H01B15/003—Apparatus or processes for salvaging material from cables by heating up
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

1351448 Recovering copper IMI REFINERY (HOLDINGS) Ltd 11 Aug 1971 [28 Aug 1970] 41607/70 Heading C7D Copper is recovered from composite articles of the metal and insulation material by immersing the article in a bath of alkali metal hydroxide at a temperature at which the insulation softens, disintegrates or decomposes, allowing the insulation to separate from the copper and withdrawing the copper from the bath. The method is particularly applicable to cable formed of copper clad with polyvinyl chloride which is placed in a steel wire-mesh basket submerged in the bath and after agitation, the basket is removed. The alkali metal hydroxide may be NaOH or KOH in molten form or in aqueous solution; when used in aqueous solution, the concentration of the solution must be such that its boiling point is above the softening, disintegration, or decomposition temperature of the insulation. Other organic materials e.g. paper, fabric wrappings or coatings, shellac, or mixed inorganic/organic materials, e.g. patina or marine deposits, may also be removed.
GB1351448D 1970-08-28 1970-08-28 Copper recovery Expired GB1351448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4160770 1970-08-28

Publications (1)

Publication Number Publication Date
GB1351448A true GB1351448A (en) 1974-05-01

Family

ID=10420479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1351448D Expired GB1351448A (en) 1970-08-28 1970-08-28 Copper recovery

Country Status (2)

Country Link
AU (1) AU457256B2 (en)
GB (1) GB1351448A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070789A2 (en) * 1981-07-20 1983-01-26 CIRTA Centre International de Recherches et de Technologies Appliquées Method of destroying compounds based on organic materials containing sulphur and/or halogens and/or toxic metals, and applications of said method
EP0749193A2 (en) * 1995-06-13 1996-12-18 Matsushita Electric Industrial Co., Ltd. Method of recovering resources in resin-molded electrical rotating device and resin for molding of the device
EP0801137A1 (en) * 1996-04-08 1997-10-15 Matsushita Electric Industrial Co., Ltd. Process for recovering copper from insulated copper wire windings

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070789A2 (en) * 1981-07-20 1983-01-26 CIRTA Centre International de Recherches et de Technologies Appliquées Method of destroying compounds based on organic materials containing sulphur and/or halogens and/or toxic metals, and applications of said method
EP0070789A3 (en) * 1981-07-20 1984-07-18 Cirta Centre International De Recherches Et De Technologies Appliquees Method of destroying compounds based on organic materials containing sulphur and/or halogens and/or toxic metals, and applications of said method
EP0749193A2 (en) * 1995-06-13 1996-12-18 Matsushita Electric Industrial Co., Ltd. Method of recovering resources in resin-molded electrical rotating device and resin for molding of the device
EP0749193A3 (en) * 1995-06-13 1997-05-02 Matsushita Electric Ind Co Ltd Method of recovering resources in resin-molded electrical rotating device and resin for molding of the device
US5830258A (en) * 1995-06-13 1998-11-03 Matsushita Electric Industrial Co., Ltd. Method of recovering resources in resin-molded electrical rotating device
EP0801137A1 (en) * 1996-04-08 1997-10-15 Matsushita Electric Industrial Co., Ltd. Process for recovering copper from insulated copper wire windings
US6235074B1 (en) 1996-04-08 2001-05-22 Matsushita Electric Industrial Co., Ltd. Process of recovering copper from winding

Also Published As

Publication number Publication date
AU457256B2 (en) 1975-01-23
AU3275671A (en) 1973-03-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees