高效组合抑制剂D_1对钨矿物和含钙矿物抑制性能研究

THE RESEARCH ON THE DEPRESSING ABILITY OF TUNGSTEN MINERALS AND CALCIUM-BEARING MINERALS UNDER HIGHLY SELECTIVE COMBINE DEPRESSOR D^1

为实现钨矿物和含钙矿物浮选分离,采用一种高效的组合抑制剂,强化对萤石、方解石等含钙脉石矿物的抑制。单矿物和人工混合矿试验结果表明,组合抑制剂D1能有效地抑制萤石和方解石,而对于白钨矿和黑钨矿可浮性未产生较大影响。实际矿石试验结果表明,经一次粗选可得到WO3品位为4.56%、回收率为82.34%的钨粗精矿。并通过考察组合抑制剂D1在白钨矿、黑钨矿、萤石和方解石四种矿物表面ζ-电位的变化和M2+吸附量,初步探讨了抑制的机理。

In order to realization of tungsten minerals and calcium-bearing minerals flotation separation, in this paper used an efficient combine depressor, to strengthen depressing effect on the fluorite, calcite and other calcic gangue mineral. The single mineral and the artificial mixed minerals separation flotation tests are carried out the combined depressant of Dlcould effectively depressing fluorite and calcite, and for the seheelite and wolframite floatability not have a significant impact. The actual ore flotation test results showed that a high-grade rough tungsten concentrate of 4.56% （WO3） with a 82.34% recovery was abtained by one stage rough flotation. The depression mechanism was preliminarily explored through investigating the change （△ζ） of zeta potential and the adsorption amount of M^2＋ on the surfaces of scheelite, wolframite, fluorite and calcite.