Method for controlling scale using a synergistic phosphonate com

Details Method for controlling scale using a synergistic phosphonate com Method for controlling scale using a synergistic phosphonate com

1995-10-06

1997-01-14

Hruskoci, Peter A.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210701, 252180, 25238922, 252395, 422 15, 422 16, 422 17, C02F 514

Patent

active

055935958

ABSTRACT:
An aqueous system containing scale forming salts including both calcium carbonate and calcium phosphate and characterized by high pH and high calcite concentrations which further contains a synergistic effective amount of a combination comprising (A) a polyether polyamino methylene phosphonate, (B) a terpolymer comprising the monomers of acrylic acid, sulfophenomethallyl ether and maleic acid, and (C) a hydroxyphosphonoacetic acid, is disclosed. A method for inhibiting the formation, deposition and adherence of such scale forming salts in the aqueous system employing the synergistic combination is also provided.

REFERENCES:
patent: 2358222 (1944-09-01), Fink et al.
patent: 2539305 (1951-01-01), Hatch
patent: 2783200 (1957-02-01), Crum et al.
patent: 2917528 (1959-12-01), Ramsey et al.
patent: 2964549 (1960-12-01), Ramsey et al.
patent: 2980610 (1961-04-01), Ruehrwein
patent: 3285886 (1966-11-01), Gunderson et al.
patent: 3434969 (1969-03-01), Ralston
patent: 3463730 (1969-08-01), Booth et al.
patent: 3514476 (1970-05-01), Morita
patent: 3518204 (1970-06-01), Hansen et al.
patent: 3928196 (1975-12-01), Persinski et al.
patent: 3965027 (1976-06-01), Boffardi et al.
patent: 3976589 (1976-08-01), Mitchell
patent: 4080375 (1978-03-01), Quinlan
patent: 4330487 (1982-05-01), Redmore et al.
patent: 4457847 (1984-07-01), Lorenc et al.
patent: 4617129 (1986-10-01), Lees
patent: 4618448 (1986-10-01), Cha et al.
patent: 4640793 (1987-02-01), Persinski et al.
patent: 4649025 (1987-03-01), Hwa et al.
patent: 4650591 (1987-03-01), Booth et al.
patent: 4671888 (1987-06-01), Yorke
patent: 4689200 (1987-08-01), Cook et al.
patent: 4872996 (1989-10-01), Grierson et al.
patent: 4931189 (1990-06-01), Dhawan et al.
patent: 4936987 (1990-06-01), Persinski et al.
patent: 4963267 (1990-10-01), Hoots et al.
patent: 4973744 (1990-11-01), Hwa et al.
patent: 4977292 (1990-12-01), Hwa et al.
patent: 5019343 (1991-05-01), Hwa et al.
patent: 5051532 (1991-09-01), Hwa et al.
patent: 5069798 (1991-12-01), Hwa et al.
patent: 5087376 (1992-02-01), Bendiksen et al.
patent: 5124046 (1992-06-01), Sherwood et al.
patent: 5158685 (1992-10-01), Freese
patent: 5262061 (1993-11-01), Gill et al.
patent: 5300231 (1994-04-01), Cha
patent: 5322636 (1994-06-01), Schaper
patent: 5338477 (1994-08-01), Chen et al.
patent: 5352365 (1994-10-01), Fuller
patent: 5358642 (1994-10-01), Chen et al.
patent: 5368830 (1994-11-01), Alfano et al.
patent: 5378368 (1995-01-01), Gill
patent: 5534157 (1996-07-01), Iman et al.
Wayplex 61-A P. A. Hunt Chemical Corp.
Briquest 221-50A Albright & Wilson Technical Bulletin.

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