Corrosion and scale inhibitors for industrial recirculating cool

Details Corrosion and scale inhibitors for industrial recirculating cool Corrosion and scale inhibitors for industrial recirculating cool

1976-08-19

1978-05-30

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

21 27A, 252 855E, 252180, 252389A, C02B 506

Patent

active

040922448

ABSTRACT:
Disclosed is a chemical composition and a process for inhibiting corrosion and scaling on metal surfaces in industrial cooling water systems. The process includes the addition to the cooling water of from 10 to 200 ppm of an alkyl polyethoxy compound having a free carboxylate, sulfonate or phosphonate group. In some preferred embodiments, 10 to 500 ppm of a mineral oil is added to the water system, in addition to the polyethoxy compound.

REFERENCES:
patent: 3293176 (1966-12-01), White
patent: 3488289 (1970-01-01), Tate
patent: 3974083 (1976-08-01), Suen et al.
patent: 4003842 (1977-01-01), Suen et al.

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