Addition of finely divided BaSO.sub.4 particles to sea water for

Details Addition of finely divided BaSO.sub.4 particles to sea water for Addition of finely divided BaSO.sub.4 particles to sea water for

1974-11-04

1976-08-10

Yudkoff, Norman

Distillation: processes, separatory

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

For scale inhibiting or corrosion preventing

23301, 23304, 159DIG13, 210 57, 252 81, 252178, 203 11, 203DIG17, B01D 334, C23F 1100, C23F 1400

Patent

active

039740390

ABSTRACT:
A process of reclaiming drinking and industrial water from sea water, accing to which the sea water to be processed is subjected to a pretreatment, comprising filtering, acidifying and degassing said sea water. To the thus treated sea water there is then added in suspension finely divided barium sulphate to provide nuclei for the crystal growth of calcium sulphate on the barium sulphate. The thus obtained suspension is then in a continuous process heated and partly evaporated, during which process, temperatures of supersaturation, with respect to calcium sulphate are reached, the water which is evaporated being collected as condensate and distillate.

REFERENCES:
patent: 896272 (1908-08-01), Camors
patent: 2204522 (1940-06-01), Werner et al.
patent: 2429594 (1947-10-01), Case
patent: 3525675 (1970-08-01), Gaudin
patent: 3655582 (1972-04-01), Dupre et al.
patent: 3725268 (1973-04-01), Gelblum

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