氧化铅锌矿石低温浮选工艺研究

氧化铅锌矿石是提取铅、锌金属的重要基础原料之一,矿石中的氧化锌矿物是主要的有用矿物。本文对兰坪复杂的氧化铅锌矿石选矿工艺进行了研究,以便更好地利用矿石中的氧化锌矿物。使用TA药剂和十八胺药剂作氧化锌浮选捕收剂,分别研究了矿浆温度对氧化锌浮选的影响,并用TA药剂和BK药剂组成的复合捕收剂,在常温(18～20℃)条件下浮选氧化锌,取得了锌品位31 77%、锌回收率73 41%的氧化锌精矿的较好结果;比用十八胺作氧化锌浮选捕收剂(矿浆温度28～30℃)取得的锌回收率高4 61%,而且TA捕收剂适合低温氧化锌浮选,但为了提高氧化锌浮选的选择性和浮选效率,应当添加适量的WG药剂。另外,本文讨论了影响低温氧化锌浮选的工艺参数。

STUDY ON THE FLOTATION OF LEAD-ZINC OXIDE ORE AT LOW TEMPERATURE

Lead zinc oxide ore is one of important raw materials for extracting lead and zinc metalsZinc oxide minerals in the ore are main valuable mineralsIn order to recover zinc oxide minerals in the ore,the beneficiation technology for complicated lead zinc oxide ore in Lanping Mine has been studied With TA and octodeca reagents being used as collectors respectively,the effect of pulp temperature on the flotation of zinc oxide minerals is investigatedAnd using a composite collector consisted of TA and BK,the flotation of zinc oxide ore is carried out at ambient temperature(18～20℃) and a zinc oxide concentrate of zinc assaying of 3177% is obtained with a zinc recovery of 7341%Compared with using octodeca amine as a collector at a pulp temperature of 28～30℃,the recovery of zinc has been increased by 461% and flotation tests have shown that the TA collector is suitable to the flotation of zinc oxide ore at low temperatureHowever,WG reagent should be added in a reasonable amount for lower temperature so as to improve the selectivity to zinc oxide mineralsIn addition,the technological parameters affecting the flotation of zinc oxides in the ore at low temperature are discussed