Recovery of silver values from chlorides including silver chlori

Details Recovery of silver values from chlorides including silver chlori Recovery of silver values from chlorides including silver chlori

1990-08-27

1992-02-04

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

C22B 1100

Patent

active

050856928

ABSTRACT:
This invention relates to the recovery of silver values from silver chloride or mixed chlorides including silver chloride. A pyrometallurgical process is provided in which chloride residues are smelted with an agent such as sodium silicate that provides alkali metal oxide without generating gases, such as carbon dioxide, that would result in foaming during smelting to a material extent.

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Entwistle "Refining $2,000,000 of Gold per Week", Jan. 1938.
Coyle--"Some Thermodynamics and Kinetic Aspects of the Refining of Gold", Feb. 1966.
International Precious Metals Institute, Symposium on Recovery, Reclamation and Refining of Precious Metals, Mar. 10, 1981, p. 8.
Sanmiya--"Oxygen Refining of Smelted Silver Residues", Jun. 1980.

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