Water treating process

Details Water treating process Water treating process

1978-07-03

1980-06-24

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

252180, 252181, 252388, 252389A, 422 15, 422 17, C02B 502, C02B 506

Patent

active

042093988

ABSTRACT:
A water treating agent which comprises a specific polymer containing a structural unit that is derived from a monomer having an ethylenically unsaturated bond and has one or more carboxyl radicals, at least a part of said carboxyl radicals being modified, or another water treating agent which comprises, in addition to said specific polymer, one or more compounds selected from the group consisting of inorganic phosphates, phosphonic acids, organic phosphoric acid esters and polyvalent metal salts, is capable of preventing the formation of corrosion, scale and contamination on the surface of a metal that is in contact with water.

REFERENCES:
patent: 3085916 (1963-04-01), Zimmie et al.
patent: 3331773 (1967-07-01), Gunderson et al.
patent: 3449303 (1969-06-01), Caldwell et al.
patent: 3684779 (1972-08-01), Rapko
patent: 3699048 (1972-10-01), Krueger et al.
patent: 3726812 (1973-04-01), Higashimura et al.
patent: 3766077 (1973-10-01), Hwa et al.
patent: 3806451 (1974-04-01), Tate
patent: 3816333 (1974-06-01), King et al.
patent: 3847846 (1974-11-01), Asada
patent: 3855364 (1974-12-01), Steckler
patent: 3880765 (1975-04-01), Watson
patent: 4026815 (1977-05-01), Kallfass
Chemical Abstracts, 112750m, vol. 78, 1973.
Chemical Abstracts, 79848u, vol. 85, 1976.
Chemical Abstracts, 79491g, vol. 81, 1974.

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