The article presents a study on the effect of ultrasonic reduction slurry flotation sylvinite concentrator to further process sylvinite ore concentration. Combined use of the purification process (ultrasonic processing, followed by gravitational desliming ore) in step slurry flotation increases cleaning efficiency minerals from insoluble impurities and reduces the loss of potassium chloride with slurry has been shown. Increased extraction of insoluble residue in the sink hydrocyclone at the combined way desliming without additional consumption of reagents will lead to lower rates of reagents on mechanical desliming, reducing the front sludge flotation and increase the productivity of the equipment in the sylvinite ore concentration technology of flotation process.

Keywords: ultrasonic treatment, slurry flotation, sylvinite ore concentration, potassium chloride