Method for the production of potassium chloride with K.sub.2 O c

Details Method for the production of potassium chloride with K.sub.2 O c Method for the production of potassium chloride with K.sub.2 O c

1988-10-06

1991-10-15

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209 17, B03D 102, B03D 108

Patent

active

050572083

ABSTRACT:
In a method for manufacturing potassium chloride with a K.sub.2 O content of 55 wt. % from the fine salt resulting from the decomposition of carnallite, n-alkyl amine salts are used as conditioning agents, and flotation media containing magnesium and potassium chloride are used to separate this fine decomposition salt in an initial flotation stage into a grain size fraction of <0.1 mm as the first pre-concentrate and a residue having a grain size of >0.315. After the conditioning, this residue is again floated and the potassium chloride comes to the surface as a second pre-concentrate. Then the potassium chloride is separated from the mixture of the two pre-concentrates, without any further conditioning, in another flotation stage, and collected.

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Publication by Mohr and Bohm in Freiberger Forschungshefte, A 267 (1963), pp. 103-112.

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