GB741571A - Process for restoration of the original conductivity of a copper melt of which the gas-content and conductivity have been reduced by addition of a deoxidant - Google Patents

Process for restoration of the original conductivity of a copper melt of which the gas-content and conductivity have been reduced by addition of a deoxidant

Info

Publication number
GB741571A
GB741571A GB133053A GB133053A GB741571A GB 741571 A GB741571 A GB 741571A GB 133053 A GB133053 A GB 133053A GB 133053 A GB133053 A GB 133053A GB 741571 A GB741571 A GB 741571A
Authority
GB
United Kingdom
Prior art keywords
conductivity
deoxidant
gas
addition
oxygen
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
GB133053A
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.)
Osnabruecker Kupfer und Drahtwerk
Original Assignee
Osnabruecker Kupfer und Drahtwerk
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 Osnabruecker Kupfer und Drahtwerk filed Critical Osnabruecker Kupfer und Drahtwerk
Publication of GB741571A publication Critical patent/GB741571A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B15/0026—Pyrometallurgy
    • C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining

Abstract

A gas-containing copper melt from electrolytic or refined copper which has had the gas-content reduced or eliminated by the addition of a deoxidant, the original conductivity of the melt thus being impaired, has its original conductivity restored by substantially removing the excess of the deoxidant used by the addition of a slagging agent or by treatment with an oxidant (oxygen in pure or combined form, air or air enriched with oxygen), without impairing the conductivity. Quicklime, with or without flux such as fluorspar, may be used as the slagging agent, and molten copper with an oxygen content, obtained from a prior stage in the melt, or solid oxygen-containing copper may be used as the oxidizing agent. The process can be effected in a preliminary and a final stage and may be carried out in the casting ladle or in a cascade funnel, one of the latter being described and illustrated.
GB133053A 1952-01-16 1953-01-16 Process for restoration of the original conductivity of a copper melt of which the gas-content and conductivity have been reduced by addition of a deoxidant Expired GB741571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO2104A DE1030038B (en) 1952-01-16 1952-01-16 Process for removing phosphorus from deoxidized copper as well as semi-finished copper products produced by the process

Publications (1)

Publication Number Publication Date
GB741571A true GB741571A (en) 1955-12-07

Family

ID=7349827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB133053A Expired GB741571A (en) 1952-01-16 1953-01-16 Process for restoration of the original conductivity of a copper melt of which the gas-content and conductivity have been reduced by addition of a deoxidant

Country Status (4)

Country Link
BE (1) BE516879A (en)
DE (1) DE1030038B (en)
FR (1) FR1075267A (en)
GB (1) GB741571A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262773A (en) * 1962-02-22 1966-07-26 Norddeutsche Affinerie Process for the removal of arsenic, antimony, tin and other acid oxide producing impurities from copper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927308B1 (en) * 1969-05-29 1970-11-19 Thyssen Huette Ag Application of the one-step dephosphorization for the production of a steel to the oxygen blowing process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE441930C (en) * 1923-03-25 1927-03-12 Siemens & Halske Akt Ges Deoxidation of copper and its alloys
BE401227A (en) * 1933-03-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262773A (en) * 1962-02-22 1966-07-26 Norddeutsche Affinerie Process for the removal of arsenic, antimony, tin and other acid oxide producing impurities from copper

Also Published As

Publication number Publication date
DE1030038B (en) 1958-05-14
FR1075267A (en) 1954-10-14
BE516879A (en)

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