Production of nonferrous metals with low selenium contents

Details Production of nonferrous metals with low selenium contents Production of nonferrous metals with low selenium contents

1979-08-08

1980-07-29

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75117, 75119, 75121, 423509, 423510, C22B 2304

Patent

active

042149002

ABSTRACT:
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.

REFERENCES:
patent: 3914375 (1975-10-01), Clark et al.
patent: 3933635 (1976-01-01), Marchant
patent: 3959097 (1976-05-01), Queneau et al.
patent: 4026797 (1977-05-01), Nikolec et al.
patent: 4047939 (1977-09-01), Morrison
patent: 4076605 (1978-02-01), Bilson

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