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US 4,792,351 AGranted
Hydrometallurgical process for producing irregular morphology powders
AssigneeGTE Products Corporation
InventorsWalter A. Johnson, Nelson E. Kopatz, Joseph E. Ritsko
Life of this patent
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Abstract
A process for producing powder particles comprises forming an aqueous solution of the metal values of iron, cobalt, nickel and molybdenum, said metals being present in a predetermined ratio, forming from the solution a reducible solid material selected from the group consisting of salts of said metals, oxides of said metals, hydroxides of said metals and mixtures thereof, and reducing said material to form irregular shaped metallic powder particles.
Claims9
A process comprising:
- (a) forming an aqueous solution containing the metal values of iron, cobalt, nickel and molybdenum, said metals being present in a predetermined ratio,
- (b) forming from said solution a reducible solid material selected from the group consisting of salts of said metals, oxides of said metals, hydroxides of said metals and mixtures thereof, and
- (c) reducing said material at a temperature below the melting point of any of the metals to form unalloyed irregular shaped metallic powder particles suitable for conversion to a maraging steel alloy.
Dependencies are inferred from the claim text.