Concentration of underground brines in situ by solar evaporation

Concentrating evaporators – Processes – Involving waste liquid

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Details

159 1S, 23295S, 23302R, 23302T, 23303, 23272AH, 423186, 61 5, 299 4, B01D 100, B01D 902, C01D 306, C01D 700

Patent

active

039665410

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: 1353283 (1920-09-01), Silsbee
patent: 1892760 (1933-01-01), Burnham
patent: 2161800 (1939-06-01), Cross
patent: 2388009 (1945-10-01), Pike
patent: 2994200 (1961-08-01), Carpenter
patent: 3037849 (1962-06-01), Frint
patent: 3386768 (1968-06-01), Jacoby
patent: R24318 (1957-05-01), Pattinson

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