Method and composition for removing calcium sulfate scale deposi

Details Method and composition for removing calcium sulfate scale deposi Method and composition for removing calcium sulfate scale deposi

1978-02-24

1979-03-13

Weinblatt, Mayer

Compositions

Water-softening or purifying or scale-inhibiting agents

Plant or organic material containing

252 82, 252 89R, 210 58, C02B 506, C02B 502

Patent

active

041441850

ABSTRACT:
A method and composition for removing calcium sulfate scale deposits from surfaces, such as reverse osmosis membranes and electrodialysis stacks, wherein the surface to be cleaned is contacted by an aqueous solution comprising a chelating agent, a soluble carbonate and a fluorocarbon surfactant.

REFERENCES:
patent: 3660287 (1972-05-01), Quattrini
patent: 3684720 (1972-08-01), Richardson

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