Method of preventing scale from being deposited in case of produ

Details Method of preventing scale from being deposited in case of produ Method of preventing scale from being deposited in case of produ

1974-12-16

1976-01-13

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

For scale inhibiting or corrosion preventing

203 11, 203DIG17, 159DIG13, 210 46, 210 58, 252180, 252181, B01D 126, C23F 1100

Patent

active

039322246

ABSTRACT:
A method of preventing scale from being deposited in case of producing fresh water from sea water by heating the sea water in a vapour pressure type evaporator and multiple stage flush evaporator and by condensing water vapour evolved to obtain the fresh water comprising adding to the sea water small amount of seed crystal selected from the group consisting of calcium carbonate and magnesium hydroxide together with a surface active agent selected from the group consisting of a nonionic active agent and cation surface active agent.

REFERENCES:
patent: 2979442 (1961-04-01), Badger
patent: 3347797 (1967-10-01), Kuegemann et al.
patent: 3578589 (1971-05-01), Hwa et al.

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