Composition and method for controlling phosphonates tending to p

Details Composition and method for controlling phosphonates tending to p Composition and method for controlling phosphonates tending to p

1995-05-25

1997-05-06

Gibson, Sharon

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

252180, 210642, 210701, 526287, C09K 700, C02F 510

Patent

active

056271450

ABSTRACT:
A method for controlling phosphonates which tend to precipitate with metal ions in water treatment operations comprising, adding to the water a water-soluble copolymer containing one or more of the following monomeric units: ##STR1## in which: R is hydrogen or an alkyl group, R.sub.1 is an alkyl group and X is hydrogen, NH.sub.4.sup.+, a water soluble metal ion or organic base; and

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patent: 4036788 (1977-07-01), Steckler
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patent: 4288327 (1981-08-01), Godlewski et al.
patent: 4659482 (1987-04-01), Chen
patent: 4836933 (1989-06-01), Montague et al.
patent: 5453416 (1995-09-01), Thevissen

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