廉江银矿浮选试验及生产实践

Flotation test and production practice in Lianjiang Silver Mine

针对廉江银矿的银在矿石中与硫化矿共生的性质 ,采用一段磨矿 (细度 76 % -0 .0 74 mm)、一粗一精二扫的混合浮选流程及 NAB混合捕收剂进行工业试验和生产调试 ,当给矿品位 5 5 3g/t Ag时 ,得到银精矿品位 12 .88kg/t Ag,银回收率达 93.4 3% .

In the light of the nature that silver contained in the ore in Lianjiang Silver Mine is associated with sulfide minerials, a bulk flotation circuit, which consisted of one\|stage grinding(76%-0\^074 mm), one\|stage roughing, one\|stage cleaning and two\|stage scavenging, with NAB mixed collector used, was adopted in the commercial test and test\|run. The grade of feed was 553 g/t Ag, the grade of resultant concentrate was 12\^88 kg/t Ag and the recovery of silver was 93\^43%.