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
GB13321/32A
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.)
Roessler and Hasslacher Chemical Co
Original Assignee
Roessler and Hasslacher Chemical 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 Roessler and Hasslacher Chemical CofiledCriticalRoessler and Hasslacher Chemical Co
Publication of GB401008ApublicationCriticalpatent/GB401008A/en
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
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Engineering & Computer Science
(AREA)
Chemical & Material Sciences
(AREA)
Manufacturing & Machinery
(AREA)
Materials Engineering
(AREA)
Mechanical Engineering
(AREA)
Metallurgy
(AREA)
Organic Chemistry
(AREA)
Manufacture And Refinement Of Metals
(AREA)
Abstract
Copper of high conductivity is obtained by melting copper containing calcium, barium, strontium, or magnesium which has been added as a deoxidizer, and passing a substantially inert gas through the melt to remove partially, or completely, the excess of the deoxidizer. Hydrogen, nitrogen, or ammonia may be used as an inert gas and may be preheated. The melt may be mechanically agitated.
GB13321/32A1931-05-091932-05-09Improvements in or relating to the refining of copper
ExpiredGB401008A
(en)