Method of conditioning clay for flotation using in situ ferrous

Details Method of conditioning clay for flotation using in situ ferrous Method of conditioning clay for flotation using in situ ferrous

1982-08-25

1985-02-26

Nozick, Bernard

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209166, B03B 100

Patent

active

045016585

ABSTRACT:
Method of treating a clay to remove therefrom titanium mineral impurities comprising the steps of mixing an aqueous clay with a collector for the titanium mineral impurities, a reducing agent, and, if needed, an activator preferably comprising a water-soluble ferrous salt; conditioning the resulting mixture of aqueous clay slurry, collector, reducing agent and activator to dissipate therein at least 25 horsepower hours of energy per ton of solids; subjecting the conditioned mixture to froth flotation and removing titanium impurities with the froth; and recovering clay having a reduced titanium minerals impurities content. The method includes the case where the activator is a ferrous salt formed in situ from iron impurities in the clay formed by adding said reducing agent in place of some or all of added activator.

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patent: 3979282 (1976-09-01), Cundy
patent: 4186027 (1980-01-01), Bell et al.

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