Flotation process for the continuous recovery of silver or silve

Details Flotation process for the continuous recovery of silver or silve Flotation process for the continuous recovery of silver or silve

1985-04-08

1986-04-29

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

75118P, 210725, 210912, 423 26, 423 34, 430398, C02F 124

Patent

active

045855617

ABSTRACT:
A flotation process for the continuous recovery of silver or silver compounds from solutions or dispersions is described, wherein finely divided, inert gas bubbles are injected into the dispersions of silver and silver compounds in the presence of protein and the pH of the medium is maintained at the isoelectric point of the protein. Addition of a surface active agent accelerates the process. The desilverized effluent has a silver content of less than 1 mg of Ag/l. The quantity of flotate (12) is less than 2% of the quantity of effluent (5) put into the process.

REFERENCES:
patent: 2196764 (1940-04-01), Folwell
patent: 2290206 (1942-07-01), Pool
patent: 3501378 (1970-03-01), Shinkai
patent: 3982932 (1976-09-01), Korosi
patent: 4005009 (1977-01-01), Kinoshita et al.
patent: 4087282 (1978-05-01), Mitsui et al.
patent: 4517282 (1985-05-01), Tomisawa et al.

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