不同表面活性剂对改性脂肪酸捕收剂的增效作用

为了考查几种表面活性剂对磷矿捕收剂的增效作用,以贵州瓮福白岩磷矿为试验样品,通过浮选试验研究了表面活性剂吐温-80、吐温-80和十二烷基硫酸钠1∶1混合物、烷基酚聚氧乙烯醚、脂肪酸甲酯α-磺酸钠盐-2、脂肪酸甲酯α-磺酸钠盐-3对改性脂肪酸类捕收剂H-2增效作用.结果表明,对于贵州瓮福白岩磷矿,通过在捕收剂中添加表面活性剂,可以提高捕收剂对磷酸盐矿物的选择性.添加表面活性剂烷基酚聚氧乙烯醚为捕收剂H-2的13%时,选矿回收率从75.02%提高到93.14%,选矿效率从2.15%提高到7.87%.表面活性剂中烷基酚聚氧乙烯醚的增效作用优于吐温-80、吐温-80和十二烷基硫酸钠1∶1混合物、脂肪酸甲酯α-磺酸钠盐-2、脂肪酸甲酯α-磺酸钠盐-3,以表面活性剂烷基酚聚氧乙烯醚复配H-2所得到的新型药剂,浮选性能要优于分析纯的油酸钠和工业应用的捕收剂FMS-01.

Synergistic effect of surfactants on modified fatty acid collector

The froth flotation tests with phosphate rock in native to Wengfu Guizhou were conducted to study the synergistic effect of surfactants on the collector for phosphate mineral dressing by testing the relation of surfactants such as Tween-80, Mixture of Tween-80 and SDS by proportion of one to one, OP-10, MES-2 and MES-3 to modified fatty acid collector H-2. The results show that the selectivity of collector for phosphate mineral is improved by adding surfactant to collector for phosphate rock in native to Wengfu Guizhou. As the dosage of surfactant OP-10 is 13% of collector H-2, the mineral recovery is improved form 75.02% to 93. 14% while separation efficiency is improved from 2. 15 to 7.87%. In unit of surfactant, the synergistic effect of surfactant OP-10 is better than that of surfactant Tween-80, Mixture of Tween-80 and SDS by proportion of one to one, MES-2 and MES-3. The flotation performance of new collector prepared by adding surfactant OP-10 to H-2 is better than the performance of pure sodium oleate and industrial application collector FMS-01