METHOD FOR TREATING A SALT SOLUTION USING MULTISTAGE SEPARATION PROCESSES, AND TREATMENT SYSTEM FOR THIS PURPOSE
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United States of America
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Mar 26, 2020
app pub date -
Mar 19, 2018
filing date -
Mar 19, 2018
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Abstract
A method is used for treating a salt solution using a treatment system. The treatment system has an evaporation device to which the salt solution produced in an upstream operation is supplied. A crystallizate suspension having kainite, halite, and sylvite is obtained from the evaporation device, and the kainite is then separated from the crystallizate suspension. The method for separating the kainite from the crystallizate suspension has at least the following steps: supplying the crystallizate suspension to a preliminary classifying device in which kainite is partly separated from the crystallizate suspension by means of a preliminary removal process based on the particle size of the kainite, thereby obtaining a kainite-reduced fraction, and transferring the kainite-reduced fraction to a flotation device in which the remaining content of kainite is separated from the kainite-reduced fraction.
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