Process of producing composite powder coated with noble metal
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United States of America Patent
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Jan 5, 1982
Grant Date -
N/A
app pub date -
Oct 11, 1979
filing date -
Oct 16, 1978
priority date (Note) -
Expired
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Abstract
Composite powder coated with a noble metal is produced by adding a powder of a metal or alloy baser than the noble metal to a powder of a metallic sulfide, carbon, activated charcoal, metallic carbide, or metallic oxide, and then adding to the resulting mixture a solution containing the noble metal with stirring. The particles of the composite powder are coated with the noble metal that results from a cementation reaction.
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