Deposit control through the use of oligomeric phosphonic acid de

Details Deposit control through the use of oligomeric phosphonic acid de Deposit control through the use of oligomeric phosphonic acid de

1979-07-16

1981-03-03

Wyse, Thomas G.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

252180, C02F 514

Patent

active

042539692

ABSTRACT:
The present disclosure is directed to oligomeric phosphonic acid derivatives which possess excellent chlorine resistance and acceptable calcium tolerance and which, at substoichiometric amounts, inhibit the formation of scale in aqueous mediums. Additionally, the oligomers have been found to be quite active as dispersants for particulate matter contained in an aqueous medium.

REFERENCES:
patent: 3617574 (1971-11-01), Maier
patent: 3621081 (1971-11-01), Prentice
patent: 3639292 (1972-02-01), Gilby
patent: 4190615 (1980-02-01), Becker

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