Protection of silver reduction materials

Details Protection of silver reduction materials Protection of silver reduction materials

1976-09-08

1977-07-12

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 5A, 75118R, 75118P, C22B 1104

Patent

active

040351815

ABSTRACT:
Materials have been found which retard the dissolution of steel wool during reduction of silver-rich solutions to reclaim silver therein. These materials include certain amines, ammonium salts, phosphates and ethylene oxides.

REFERENCES:
patent: 2214765 (1940-09-01), Holzwarth
patent: 2221163 (1940-11-01), Barnes et al.
patent: 2863761 (1958-12-01), Ashley et al.
patent: 3369886 (1968-02-01), Metzger et al.
patent: 3390981 (1968-07-01), Hoffman
patent: 3490898 (1970-01-01), Venkatakrishnan
patent: 3666447 (1972-05-01), Sanbestre
patent: 3820979 (1974-06-01), Manassen
patent: 3961943 (1976-06-01), Schell

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