Zinc, iron and manganese stabilization using polyether polyamino

Details Zinc, iron and manganese stabilization using polyether polyamino Zinc, iron and manganese stabilization using polyether polyamino

1992-07-01

1993-11-16

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210701, 252180, C02F 514

Patent

active

052620611

ABSTRACT:
Polyether polyamino methylene phosphonates, when added to various industrial water systems in concentrations between 0.1 mg/L and 50 mg/L, stabilize soluble zinc, manganese and iron ions and their reaction products, in desirable forms and reduced particle sizes. In particular, this stabilization can be achieved under severe conditions which include elevated pH, high dissolved solids content, and high saturation levels of calcium carbonate.

REFERENCES:
patent: 3349031 (1967-10-01), Hatch et al.
patent: 4080375 (1978-03-01), Quinlan
patent: 4552665 (1985-11-01), Ralston et al.
patent: 4783267 (1988-11-01), Boffardi et al.
patent: 4872996 (1989-10-01), Grierson et al.
patent: 4931189 (1990-06-01), Dhawan et al.
patent: 5112496 (1992-05-01), Dhawan et al.

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