PRECIOUS METAL CONCENTRATE PREPARATION METHOD Russian patent published in 2005 - IPC

Abstract RU 2258090 C1

FIELD: precious metal hydrometallurgy.

SUBSTANCE: invention relates to methods for sorption-assisted recovery of metals from materials containing them. Method of invention proposes recovering precious metals from solution in redox mixture with involvement of sorption of these metals by added sorbent, which is further burnt down. Sorbent is added portionwise and weight of each portion constitutes 0.11-0.50 total weight of added sorbent. Portions are added in time moments between the beginnings of two consecutive additions within a time range constituting 0.14-0.86 total sorption time period. Moreover, number of sorbent portions is selected between 2 and 9.

EFFECT: increased degree of precious metal recovery.

4 cl, 16 ex

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RU 2 258 090 C1

Authors

Tertyshnyj I.G.

Chernyshev V.I.

Shustov S.V.

Dates

2005-08-10—Published

2004-01-30—Filed