Method of clarifying phosphoric acid

Details Method of clarifying phosphoric acid Method of clarifying phosphoric acid

1992-08-28

1994-06-07

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

423320, 4233211, B01D 2101

Patent

active

053187075

ABSTRACT:
A method for clarifying phosphoric acid by flocculation or coagulation of solids wherein an effective amount of a carboxylic-type polymer having a portion of sulfonic functionality is used as the clarification aid. Preferred polymers are high molecular weight acrylic acid/acrylamido methylpropyl sulfonic acid-type polymers.

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CA91:195236r Dombalov; Khim Ind (Sofia) (1979).
CA83:1819f Harper et al; GB1401682 (1975).
CA96:8835d; Japan Kokai JP8188,814 (1981).

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