PRODUCTION OF SORBENT FOR SORPTION OF HEAVY METALS Russian patent published in 2012 - IPC B01J20/24 B01J20/10 B01J20/28 B01J20/30

Abstract RU 2455062 C1

FIELD: process engineering.

SUBSTANCE: invention relates to sorbents used for treatment of effluents and solution in hydrometallurgy. Sodium silicate solution is added to water dispersion of humin-containing material. Granules are produced to be dried, processed by mineral acid solution, and rinsed. Sorbent granule dewatering is performed by spinning and microwave irradiation. After rinsing, granules are dehydrated unless porous vitreous shell appear on granule surface.

EFFECT: accelerated process, higher mechanical strength.

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RU 2 455 062 C1

Authors

Dunin-Barkovskij Romual'D L'Vovich

Dates

2012-07-10—Published

2011-02-14—Filed