Process of producing non-ferrous metal powders or...

Details Process of producing non-ferrous metal powders or... Process of producing non-ferrous metal powders or...

B - Operations, Transporting

22

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53/377

B22F 9/18 (2006.01) B22F 9/20 (2006.01) B22F 9/24 (2006.01)

Patent

CA 1334626

In a process of producing non-ferrous metal pow- der or non-ferrous metal powder mixtures, wherein a metal com- pound is treated in an aqueous medium with an aqueous sugar or starch solution with stirring and optionally at an elevated temperature and the precipitated metal powder is separated, a more economical production using simpler equipment is permitted in that non-ferrous metal oxide or hydroxide in a concentra- tion between 20 and 400 g/l (calculated as metal) is treated in the aqueous medium at a pH-value above 3.2 and at a tem- perature between 20 and 160°C and the virtually oxide free non-ferrous metal powder which is precipitated is separated. Oxides or hydroxides of the metals Cu, Ag, Ni, Co, Sn, Pb, Sb, As or Bi are used.

563434

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