难选氧化铜矿的超声波助浸研究

摘要

Ultrasound strengthening leaching on refractory copper oxide ore was studied.Copper leaching rate is 59.35％ under the conditions including ultrasonic amplitude of 70％ and leaching time of 15 min.Compared with conventional agitation leaching,ultrasound strengthening leaching process takes 1/8 leaching time with 4.95 percent point higher copper leaching rate.Total copper recovery is 90.91％ through closed-circuit test of ultrasonic strengthening leaching on undressed ore and flotation for leaching slag.%选取某难选氧化铜矿为对象,进行超声波助浸试验,当超声波发生器振幅为70％、助浸时间为15min时,铜浸出率为59.35％.超声波助浸较传统搅拌酸浸,浸出时间缩短了7倍,铜浸出率提高了4.95个百分点.采用超声波助浸—浸渣浮选新工艺处理该氧化铜矿,获得了闭路铜总回率90.91％的较好指标.