Method for preparing potassium chloride from carnallite raw ore
A technology of carnallite and potassium chloride, applied in alkali metal chlorides, potassium fertilizers, inorganic fertilizers, etc., can solve the problems of reducing the grade of potassium chloride, reducing the utilization rate of carnallite, and low grade of potassium chloride
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[0026] In order to express the purpose, technical solution and effect of the present invention more clearly, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.
[0027] figure 1 It is a process roadmap for producing potassium chloride from carnallite raw ore of the present invention. The invention is in image 3 Improve on the basis of , replace prior art with crushing device 11a ( image 3 ) in the recovery crystallizer 11, using physical methods to crush the oversize into small particles that meet the size of the flotation particle size, and the crushed particles return to the flotation machine 5 for secondary flotation to remove chlorine that was not removed in the previous process Sodium chloride particle...
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