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- Recovery of germanium, cadmium, and lead as sulfides from zinc concentrates by batch and fluid-solids roasting
- Experimental extraction of strategic components from S-816 alloy scrap
- Recovery of tin, tungsten and other metals from tin smelter wastes
- Recovery of lead and sulfur by combined chlorination and electrolysis of galena
- Tungsten whiskers by vapor-phase growth
- Application of filiform tungsten to reinforce metals