Process for purifying aqueous solutions, of metal ions precipita

Details Process for purifying aqueous solutions, of metal ions precipita Process for purifying aqueous solutions, of metal ions precipita

1975-09-08

1976-09-07

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204130, 423 42, 423140, C25C 116

Patent

active

039792668

ABSTRACT:
A process for purifying aqueous solutions, of metal ions precipitating as arsenides, antimonides, tellurides, selenides, and tin and mercury alloys, wherein arsenic, antimony, tellurium, selenium, tin, mercury and/or compounds of the same are added to the aqueous solution as auxiliary agents, whereafter the impurities are cemented under reducing conditions by means of the auxiliary agent, and the cementation is catalyzed by means of the formed cementate by contacting the aqueous solution with the cementate, the quantity of which is substantially greater than that primarily cemented from the aqueous solution.

REFERENCES:
patent: 3672868 (1972-06-01), Hasegawa et al.

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