Precipitating scale-forming compounds from water, and forming fr

Details Precipitating scale-forming compounds from water, and forming fr Precipitating scale-forming compounds from water, and forming fr

1978-12-20

1981-01-27

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

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

For scale inhibiting or corrosion preventing

203 11, 203 22, 203 23, 203 26, 203 34, 203 37, 203 41, 203 47, 203 73, 203 88, 203 92, 203100, 203DIG14, 202173, 202176, 202177, 202180, 159 24B, 159DIG13, 210687, 210714, 210718, 210696, C02F 110, B01D 128

Patent

active

042473713

ABSTRACT:
Water containing dissolved compounds is preheated, and is then pressurized in stages of water pressure, while receiving a quantum of steam. Scale-forming compounds in the water are thermally precipitated, and clarified post-thermal water is formed. This is flash vaporized in stages corresponding to the stages of water pressure, and the flashed vapors are compressed to form each said quantum of steam. Alternately, the flashed vapors themselves comprise each said quantum of steam, by being induced into the water as it flows through an eductor means. Flash-cooled, post-thermal water, substantially devoid of scale-forming compounds, is employed as such, or more generally is evaporated to form fresh water and an end concentrate of dissolved compounds.

REFERENCES:
patent: 3026261 (1962-03-01), Mayfield et al.
patent: 3119752 (1964-01-01), Checkovich
patent: 3218241 (1965-11-01), Checkovich
patent: 3814671 (1974-06-01), Roller
patent: 3951752 (1976-04-01), Roller
patent: 3951753 (1976-04-01), Roller
patent: 4054493 (1977-10-01), Roller

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