新型回水处理剂降低脱泥钼损失率试验研究

Experimental Study on Reducing Molybdenum LOss from Desliming with a New Backwater Treatment Agent

承德某钼矿主要以辉钼矿为主,脉石矿物主要是滑石、蛇纹石,采用脱泥工艺浮选脱除滑石、蛇纹石之后进行浮选选钼的工艺流程。为解决回水中残留药剂造成脱泥作业钼损失率高的问题,研发了新型回水处理剂(CK-J1),新药剂可对回水中残留药剂进行高效、快速降解。闭路试验结果表明:回水中添加CK-J1用量1000 g/t后,可将钼在脱泥产品中的损失率由13.14%降低至5.71%,钼精矿钼回收率可由72.01%提高至78.40%。

A molybdenum mine in Chengde is mainly composed of molybdenite,and its gangue minerals are mainly talc and serpentine.A process flow for flotation of molybdenum after the removal of talc and serpentine by desliming process was adopted.In order to solve the problem of high molybdenum loss rate caused by residual chemicals in backwater during desliming operations,a new backwater treatment agent CK-J1 has been developed,which can efficiently and rapidly degrade residual chemicals in backwater.The results of closed circuit test show that adding 1000 g/t of CK-J1 to the backwater can.reduce the loss rate of molybdenum in the desliming product from 13.14%to 5.71%,and increase the molybdenum recovery rate of molybdenum concentrate from 72.01%to 78.40%.