黑白钨混合浮选新技术研究及应用

Research and application of new technology of wolframite and scheelite mixed flotation

黑白钨混合浮选新技术主要是用具有极强选择性捕收能力的金属基有机配合物捕收剂代替"GYB+GYR"组合捕收剂.针对该新技术的关健影响因素进行了研究,结果表明该新技术在预先脱除磁铁矿与硫铁矿,矿浆浓度50%~55%、pH值9.5~10.0、捕收剂用量550g/t以上的条件下,对品位WO_3为0.3%~0.4%的原矿,混浮的钨精矿WO_3品位可达到40%以上,钨的回收率提高了7个百分点以上,极大简化了钨选矿工艺流程,对原矿性质变化具有较强的适应性.

The new technology of the bulk wolfram flotation is to replace the ＂GYB＋GYR＂ combined collector with a metal organic complex collector with very strong selective collecting ability. The key factors affecting the new technology are studied. The results show that the new technology in the pre removal of magnetite and pyrite, pulp concentration 50%-55%,pH value 9.5-10.0, the collector dosage is above 550 g/t,the WO3 containing 0.3%-0.4% ore,mixed flotation of wolframite concentrate WO3 grade can reach more than 40%, tungsten the recovery rate increased by 7 percentage points or more. And it greatly simplifies the tungsten ore dressing process and has a strong adaptability to the change of the nature of the raw ore.