Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1989-09-18
1990-11-27
Hruskoci, Peter
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
210698, 210701, 252180, 252181, 422 15, 422 16, 422 17, C02F 514
Patent
active
049734091
ABSTRACT:
A method is shown of treating an aqueous system comprising adding to the system a water-soluble tri-copolymer having the formula I:
REFERENCES:
patent: 2723956 (1955-11-01), Johnson
patent: 3617577 (1971-11-01), King
patent: 3715307 (1973-02-01), Johnson et al.
patent: 3755264 (1973-08-01), Testa
patent: 4126549 (1978-11-01), Jones et al.
patent: 4223120 (1980-09-01), Kurowsky
Japanese 71/019437-B (Derwent Abst. 71-36776S/21).
Ciba-Geigy Corporation
Hall Luther A. R.
Hruskoci Peter
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