Selective leach for oxides and therein-contained metals

Details Selective leach for oxides and therein-contained metals Selective leach for oxides and therein-contained metals

C - Chemistry, Metallurgy

22

B

150/15, 53/18, 1

C22B 3/18 (2006.01) C12S 99/00 (2010.01) C12N 9/04 (2006.01) C12N 9/08 (2006.01) C12Q 1/64 (2006.01) G01N 1/10 (2006.01) G01N 33/20 (2006.01) G01N 33/24 (2006.01)

Patent

CA 2025516

A selective leach solution for partial dissolution of geological materials to dissolve oxides and therein-contained metals comprises water, a sugar, and a first enzyme which can act upon the sugar to produce an organic acid and a low concentration of hydrogen peroxide, the concentration of the sugar in the solution being in the range 0.0001% to 20%, and the concentration of the first enzyme in the solution being in the range 0.0001% to 5.0%.

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