提高河南某钨钼矿石白钨粗精矿品位试验  

Study on Improving the Grade of Scheelite Rough Concentrate of a Tungsten and Molybdenum Ore in Henan

作　　者：亢建华[1] 孙伟[1] 陈臣[1] 郭明杰 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]洛阳栾川钼业集团股份有限公司,河南栾川471500

出　　处：《金属矿山》2016年第3期91-94,共4页Metal Mine

摘　　要：河南栾川某低品位钨钼矿石因含钙脉石矿物含量高,选钼尾矿常温粗选白钨矿效率非常低,大大增大了后续加温精选的药剂用量和提高精矿WO3品位的难度。为此,研究了单独使用水玻璃、酸化水玻璃、ATM的抑制效果,并考察了酸化水玻璃与ATM的协同作用。结果表明:3种抑制剂单独使用时的抑制效果顺序是ATM>酸化水玻璃>普通水玻璃;ATM与酸化水玻璃同时使用可以发挥协同效果,当ATM+酸化水玻璃用量为20+300 g/t时,与不使用抑制剂相比,白钨粗精矿WO3品位从0.62%显著提高至1.42%,且回收率也有明显提高,这为后续降本提质创造了条件。There is high content of calcic gangue mineral in a low grade tungsten and molybdenum ore in Luanchuan Henan,the efficiency of scheelite roughing from the tailings of molybdenum separation at room temperature is very low,which greatly increases the reagent dosage of heating selection and increases the difficulty in improving the grade of WO3 in concentrate. Experiments on the inhibition effect of sodium silicate,acidified sodium silicate and ATM respectively,and the synergistic effect of the acidified sodium silicate with ATM are carried out. The results show that the order of inhibition effect is ATM acidified sodium silicate odium silicate,when the three kinds of inhibitors are used alone; ATM and acidified sodium silicate used at the same time can play a synergistic effect. With the dosage of ATM ＋ acidified sodium silicate 20 ＋ 300 g / t,and compared that with no use of the inhibitor,the rough concentrate grade of WO3 increases from 0. 62% to 1. 42%,and the recovery increased significantly,which creates conditions for improving the quality of concentrate and reducing cost subsequently.

关 键 词：白钨矿粗选 粗精矿WO3品位 组合抑制剂 ATM+酸化水玻璃 

分 类 号：TD923.7[矿业工程—选矿]