JOHN JOSEPH CULKIN
Engineers in Towanda, PA
License number
Pennsylvania PE006854E
Category
Engineers
Type
Professional Engineer
Address
Address
Towanda, PA 18848
Professional information
Process For Producing Cobalt Powder
US Patent:
4233063, Nov 11, 1980
Filed:
May 14, 1979
Appl. No.:
6/038972
Inventors:
Joseph E. Ritsko - Towanda PA
John J. Culkin - Towanda PA
Martin B. MacInnis - Towanda PA
Howard L. Acla - Towanda PA
John J. Culkin - Towanda PA
Martin B. MacInnis - Towanda PA
Howard L. Acla - Towanda PA
Assignee:
GTE Products Corporation - Stamford CT
International Classification:
C22B 2304
US Classification:
75 05AA
Abstract:
Cobalt is recovered from by-product streams from a basic process by heating the by-product streams containing ammonia for a sufficient period of time at a pH of about 8 to about 10 to produce an ammonia enriched vapor and an aqueous mixture comprising a solution substantially free of ammonia and another cobalt containing precipitate. The basic process is the type wherein cobalt ions in solution are complexed with ammonia in the presence of halide ions to form an ammine halide solution which is digested to form a cobalt containing precipitate. The precipitate is subsequently reduced to form a cobalt metal powder.