METHOD FOR HYDROCHEMICAL PROCESSING OF ALUNITE ORE CONTAINING SILICA IN THE FORM OF AMORPHOUS MODIFICATIONS Russian patent published in 2005 - IPC

Abstract RU 2250196 C2

FIELD: nonferrous metallurgy.

SUBSTANCE: alunite ore containing silica in the form of amorphous modifications is subjected to alkaline hydrochemical treatment including crushing to fineness -3 mm and one-step leaching of agitated crushed ore with alkali-aluminate solution for 1-2 h at 60-70°C.

EFFECT: simplified equipment and process flowsheet including recovery of silica, and reduced loss of alkali with refuse slime.

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RU 2 250 196 C2

Authors

Nasyrov G.Z.

Dates

2005-04-20—Published

2003-05-05—Filed