Scale inhibition

Details Scale inhibition Scale inhibition

1985-07-03

1986-10-14

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

166902, 203 7, 210701, 252 8552, 252180, C02F 514

Patent

active

046171290

ABSTRACT:
Method of inhibiting the precipitation of calcium carbonate from an aqueous system, comprises adding to the aqueous system a scale precipitation inhibiting amount of bis(phosphonomethylene) aminomethylene carboxylic acid.
Typical aqueous systems usefully treated by the new method are water- or oil well systems, cooling water systems, steam generating systems, sea-water evaporators, hydrostatic cookers, gas-scrubbing systems, closed circuit heating systems, reverse-osmosis systems and aqueous-based refrigeration systems.

REFERENCES:
patent: 2961311 (1960-11-01), Bersworth et al.
patent: 3505238 (1970-07-01), Liddell
patent: 3932303 (1976-01-01), Hollingshad
patent: 4033896 (1977-07-01), Mitchell et al.
patent: 4079006 (1978-03-01), Mitchell
patent: 4501667 (1985-02-01), Cook

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