Production of nonferrous metals with low selenium contents

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United States of America Patent

PATENT NO 4214900
SERIAL NO

06064689

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Abstract

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Selenium is precipitated from solutions or slurries containing nonferrous metals, particularly nickel by contacting the solution or slurries with a semimetallic chromous precipitant of the nonferrous metal, particularly nickel, which has a nonferrous metal to chromium ratio between about 10:1 and about 200:1 and which has a metallic content between about 50% and about 90%. The semimetallic chromous precipitant of the nonferrous metal is prepared by hydrogen reducing a solution of the nonferrous metal or slurries containing chromous salts in amount to provide the aforementioned nickel to chromium ratios.

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Patent Owner(s)

  • COMPAGNIE FRANCAISE D'ENTREPRISES MINIERES, METALLURGIQUES ET D'INVESTISSEMENTS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crnojevich, Ranko Gretna, LA 5 31
Wiewiorowski, Edward I New Orleans, LA 6 51
Yu, Peter H Harvey, LA 5 65

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