Chemistry: physical processes – Physical processes – Crystallization
Patent
1976-03-02
1978-05-09
Emery, Stephen J.
Chemistry: physical processes
Physical processes
Crystallization
23298, 23300, 23302T, 23303, 159 15, 423279, 423186, 61 05, B01d 902, C01d 130, C01d 306
Patent
active
040884511
ABSTRACT:
A process is provided for the recovery of chemicals, such as chlorides, sulfates, carbonates and borates of such alkali metals as sodium and potassium, among others, from underground brines associated with an ore body containing said chemicals, wherein the underground brine is pumped to the surface and confined over said ore body where it is concentrated by solar evaporation and the concentrated brine returned to an underground basin adjacent said ore body and stored for later removal by pumping for the subsequent recovery of chemicals therefrom. Thus, solar evaporation is used to produce the desired concentration of brine to optimize the subsequent recovery of chemicals therefrom, thereby resulting in substantial savings in overall energy costs.
REFERENCES:
patent: RE24318 (1957-05-01), Pattinson
patent: 1353283 (1920-09-01), Silsbee
patent: 1892760 (1933-01-01), Burnham
patent: 2200665 (1940-05-01), Bolton
patent: 3262741 (1966-07-01), Edmonds
patent: 3348883 (1967-10-01), Jacoby
patent: 3910773 (1975-10-01), Garrett
Hightower, The Trona Process, Aug. 1951, Chem. Eng., pp. 104-106.
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