Process and apparatus for the continuous determination of the sy

Liquid purification or separation – Processes – Including controlling process in response to a sensed condition

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23296, 210774, B01D 902

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active

056141041

ABSTRACT:
Process for determining the sylvine saturation in which the salt concentration in the solid matter-free crude solution through temperature determination at a temperature T.sub.M >T, and subsequently after contacting with KCl at a temperature T.sub.NS >T and heating to T.sub.M, is measured again, and from this data a saturation temperature T.sub.S is obtained. The temperature difference T.sub.S -T serves as a measure for the sylvine saturation degree. In this manner, the sylvine saturation degree can automatically be measured in intervals of seconds and can serve as a control value for the addition of crude salt in a hot solution process.

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Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition, vol. A22, 1993, pp. 53-57.
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Z. Angew. Phys. 27 (1969), No. 4, pp. 273-277, O. Kratky, H. Leopold and H. Stabinger ("Dichtemessungen . . . ").

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