Scale inhibitors for preventing or reducing calcium phosphate an

Details Scale inhibitors for preventing or reducing calcium phosphate an Scale inhibitors for preventing or reducing calcium phosphate an

1985-03-04

1986-04-22

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

252180, 526260, C02F 512

Patent

active

045841055

ABSTRACT:
Acrylic acid or acrylic acid/methacrylic acid is polymerized with between 5-95 mole percent of (meth)acryloyl morpholine to form polymers having a molecular weight range between 1,000-150,000. These polymers are extremely effective inhibitors for preventing calcium phosphate scale in boilers and on industrial heat exchangers. The above described water-soluble polymers are novel.

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patent: 3156687 (1964-11-01), Andersen et al.
patent: 3392169 (1968-07-01), Zienty
patent: 3482980 (1969-12-01), Hayakawa et al.
CA83(7):5816Br, N,N-Dialkylamide of Unsaturated Carboxylic Acids, Oct. 1973.

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