Process and system for the solution mining of evaporites and pre

Details Process and system for the solution mining of evaporites and pre Process and system for the solution mining of evaporites and pre

1997-08-04

2000-02-08

Suchfield, George

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Input and output wells

606418, 299 5, E21B 4328

Patent

active

060220805

ABSTRACT:
A process and a system for the solution mining of evaporites and preparation of the obtained saline solution and in particular for the dissolution of salts, evaporation and cooling of the obtained saline solution, and crystallization of salts under subtropical and tropical climatic conditions. The invention can also be applied for the preparation of naturally occurring saline solutions. In the process and system of the invention, a solvent is heated in a solar pond by means of solar energy to a temperature above ambient condition and up to approximately 60.degree. C. to 80.degree. C. The heated solvent is introduced into a cavern to be solution mined to produce a production brine which is heated. The heated production brine leaves the cavern and is then cooled along with water evaporation whereby solids crystallize and separate producing a solid product and a cold mother solution.

REFERENCES:
patent: 2161800 (1939-06-01), Cross
patent: 3386768 (1968-06-01), Jacoby et al.
patent: 4072472 (1978-02-01), Lukes
patent: 4211613 (1980-07-01), Meckler
patent: 4475771 (1984-10-01), Atwood et al.
Kalisalzgewinnung durch gelenktes Aussolen--Bergakademi 17.Jg. Hfet Nov. 11, 1965.
Operation of a Potassium Ore Pilot Cavern, Solution Mining Research Institute, 1994.
Salt Ponds: Energy Phenomenon, Compressed Air Magazine, Jan. 1986.

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