Process for converting brass scrap to copper powder

Details Process for converting brass scrap to copper powder Process for converting brass scrap to copper powder

C - Chemistry, Metallurgy

22

C

53/287

C22C 1/04 (2006.01) B22F 1/00 (2006.01)

Patent

CA 1154972

PROCESS FOR CONVERTING BRASS SCRAP TO COPPER POWDER Abstract Copper powder is produced from brass by reacting the brass with hydrochloric acid in an oxygen-free atmosphere at a temperature of at least 70°C until the non-copper metals and impurities of the brass are dissolved, oxidizing at least 10 percent by weight of the resulting copper to copper oxides, grinding the copper-copper oxide to a powder and removing the copper oxides of the powder to obtain a pure copper powder.

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