Method of exploiting potassium salts from an underground deposit
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United States of America Patent
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Jan 17, 2017
Grant Date -
May 21, 2015
app pub date -
Jun 4, 2013
filing date -
Jun 5, 2012
priority date (Note) -
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Abstract
The present invention pertains to a mineral exploitation method and, more specifically, to a method for extracting potassium salts from underground deposits. In the method according to the present invention, an intermediary stage is carried out between the primary mining and secondary mining stages, and in this intermediary stage sinks (8) are created that receive the water-immiscible fluid (9) used in the primary mining stage, exposing an amount of potassium chloride remaining on the cavern ceiling, at the end of the primary mining stage, which will be dissolved by a second solvent during the secondary mining stage.
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