黄沙坪低品位多金属矿钼铋回收的研究

针对黄沙坪多金属矿矿石性质复杂,矿物品种多,有价矿物含量低的特点,采用先钼铋混浮、再钼铋分离的工艺回收钼铋.在钼铋混合浮选粗选作业,用MG油和SN9号作组合捕收剂,添加适量的碳酸钠和水玻璃,可获得品位和回收率较高的钼铋粗精矿；在钼铋分离作业,用硫化钠作硫化矿的抑制剂,添加适量的活性炭有助于提高钼精矿品位.在原矿Mo品位...

Study on recycling of Mo and Bi from low grade polymetallic deposit in Huangshaping

Based on the complexity,variety and low content of valuable mineral of the polymetallic deposit in Huangshaping,Mo and Bi in the deposit were recovered by Mo and Bi bulk flotation and then Mo and Bi separation process.In the rough bulk flotation process of Mo and Bi,a Mo and Bi rough concentrate of high grade and recovery was obtained by use of a combination collector comprising MG oil and SN9#,and moderate additions of sodium carbonate and sodium silicate.In the separation process of Mo and Bi,sodium sulfide was applied as inhibitor,and a moderate addition of activated carbon could help improve the grade of Mo concentrate.When the Mo and Bi grades in the crude ore were 0.15% and 0.030% respectively,technical indexes such as Mo concentrate grade 53.85%,Mo recovery 90.25%,Bi grade in Bi middling 2.88% and Bi recovery 59.34% were obtained.