Method of clarifying phosphoric acid using high charge sulfonic-

Details Method of clarifying phosphoric acid using high charge sulfonic- Method of clarifying phosphoric acid using high charge sulfonic-

1921-10-15

1992-12-22

Heller, Gregory A.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423320, 423321S, C01B 2516

Patent

active

051732807

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

REFERENCES:
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patent: 4291005 (1981-09-01), Poulos et al.
patent: 4800071 (1989-01-01), Kaesler et al.
patent: 5009873 (1991-04-01), Kerr et al.
patent: 5120519 (1992-06-01), Gross
Abstract No. CA96(2):8835d, Abstract No. CA99(26):214925y, Abstract No. CA91:(24):195236r and Abstract No. CA83(22):181589f.

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