Use of heavy metal chelates of 2-mercaptopyridine-N-oxide to sep

Details Use of heavy metal chelates of 2-mercaptopyridine-N-oxide to sep Use of heavy metal chelates of 2-mercaptopyridine-N-oxide to sep

1980-01-24

1981-05-26

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75118R, 75118P, 75121, 423 22, 423 24, C22B 1104

Patent

active

042696216

ABSTRACT:
Disclosed is a process for separating precious metals such as gold or platinum from acidic solutions having a pH below about 3, which comprises the steps of:

REFERENCES:
patent: 3473921 (1969-10-01), Schmuckler
patent: 3755161 (1973-08-01), Yokota et al.
patent: 3992506 (1976-11-01), Hooks et al.
patent: 4097272 (1978-06-01), Rappas et al.
patent: 4148813 (1979-04-01), Rappas et al.
Edrissi et al., Microchemical J., vol. 15, pp. 579-584 (1970); vol. 16, pp. 177-183 and 538-547 (1971).
Dalziel et al., Analyst, vol. 89, pp. 707-712 (1964).
Olin Industrial Biocides Product Data Bulletin for Zinc Omadine and Sodium Omadine (1978).
Hampel, Rare Metals Handbook, Reinhold Publ. Corp., pp. 295-301, 1956.

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