Flocculation of mineral suspensions

Details Flocculation of mineral suspensions Flocculation of mineral suspensions

2005-12-27

2005-12-27

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

C209S005000, C210S732000, C210S734000, C210S907000, C423S122000, C501S148000

Reexamination Certificate

active

06979405

ABSTRACT:
A method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising, a) a substantially non-ionic polymeric flocculant and b) an anionic polymeric flocculant, characterised in that, the substantially non-ionic polymeric flocculant is added to the suspension before the addition of the anionic polymeric flocculant. The method is useful for flocculating China clay suspensions, suspensions of s welling clays, calcium carbonate suspensions, titanium dioxide suspensions, suspensions of coal tailings, red mud and phosphate slimes etc.

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