Method of stabilizing manganese in aqueous systems

Details Method of stabilizing manganese in aqueous systems Method of stabilizing manganese in aqueous systems

1989-02-08

1990-07-17

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210698, 210701, 252181, C02F 510

Patent

active

049419790

ABSTRACT:
A process for stabilizing manganese ions in aqueous solutions is disclosed. The process comprises adding to an aqueous solution containing maganese ions a polymer or copolymer of unsaturated carboxylic compounds such as acrylic acid, methacrylic acid, polyacrylic acid and maleic anhydride and an orthophosphate. The ratio of polymer to orthophosphate is preferrably about 2 to 1.

REFERENCES:
patent: 3790610 (1974-02-01), Lum et al.
patent: 4452713 (1984-06-01), Small
patent: 4552665 (1985-11-01), Ralston et al.
patent: 4560481 (1985-12-01), Hollander
patent: 4640793 (1987-02-01), Persinski et al.
patent: 4759851 (1988-07-01), Chen

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