Brown, R. E.
Sales Engineer, Electro Metallurgical Sales Corp., San Francisco, Calif.
Pages: 18 Published: Jan 1932
The processes of thermal metallurgical treatment of metallic ores and concentrates to accomplish the recovery of the metals consist of three general divisions or steps:
1. Roasting of the ores or concentrates.
2. Smelting of the ores or concentrates:
(a) Reduction to matte followed by conversion of the matte to crude metal.
(b) Direct reduction to the crude or refined metal.
3. Refining of the crude metal.
Paper ID: STP43867S