Skarn-scheelite ores beneficiation stimulation using ultrasonic treatment

摘要

The impact of acoustic vibrations on physical and chemical properties of circulating water, heterogenic systems of pulps of sulphide and scheelite cycles flotations, collectors (IMA-I413p (potassium butyl xanthate), sodium oleate of commercial acid B-115) have been studied on skarn scheelite-quartz-sulphide ore of Vostok-2 deposit. Ultrasonic treatment has been performed using UZDN-2T apparatus. Working frequency 22 kHz, absorbed acoustic power average for radiator Pak = 46 W, sound intensity average I_(us)= 1 W/cm~(2)(rated I_(us)= 2-3 W/cm~(2)). During all experiments, ultrasonic treatment time was constant - 5 minutes, insonation solutions volume - 250-100 ml, solutions heating temperature in the course of insonation - 25-35 °С. The flotation tests patterns, reagent scheme are approximate to process regulation of Primorskaia oreprocessing plant processing ores of given deposit. Utmost increment of extraction in case of collctors ultrasonic treatment has been reached on dialkyldithiophosphate (IMA-I413p), the increment of extraction of chalcopyrite into bulk sulphide concentrate 0.98 %. The best results of testing of ultrasonic treatment impact on scheelite ores beneficiation have been obtained in case of ultrasound impact on circulating water. In consequence of stimulation of precious minerals flotation increment of extraction of chalcopyrite into copper concentrate by 1.4 % and scheelite into bulk rough concentrate by 2.5 % has been obtained.