Tin recovery

Details Tin recovery Tin recovery

1978-11-13

1980-07-15

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 24, 75113, 423 94, 423 96, 423618, C22B 2500

Patent

active

042126665

ABSTRACT:
Tin is recovered from a molten tin-bearing silicate slag by stirring the molten slag in the presence of calcium chloride and a carbonaceous material. The tin in the slag is rapidly converted to a volatile tin chloride compound, which is removed and contacted with a hot calcium chloride solution trickling over a bed of limestone rock to precipitate tin oxide, which is separated from the calcium chloride solution, which may be reused.

REFERENCES:
patent: 1817865 (1931-08-01), Ashcroft

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