新型Gemini含酯基阳离子捕收剂的浮选性能

发布时间：2018-04-26 15:36

  本文选题：阳离子捕收剂M-B + ζ电位测试　； 参考：《金属矿山》2017年02期

【摘要】：以环氧氯丙烷、十二烷基二甲基叔胺及丁二酸为原料合成新型Gemini含酯基阳离子表面活性剂M-302B。以M-302B为捕收剂对石英和磁铁矿纯矿物进行浮选试验表明M-302B可用于石英和磁铁矿的浮选分离。以M-302B为捕收剂对酒钢选矿厂焙烧—磁选后的精矿进行浮选试验,结果表明,在矿浆p H=7、温度为25℃、苛性淀粉用量为400 g/t、M-302B用量为400 g/t条件下,可得到精矿铁品位为60.24%、回收率为82.19%,选矿效率为31.13%的指标。M-302B与十二胺浮选性能对比试验表明,相较于十二胺,M-302B捕收能力强、耐低温且产生泡沫易被消除。ζ电位测试和红外光谱分析表明,M-302B在石英表面的吸附机理主要为物理吸附和氢键作用。量子化学计算表明M-302B活性高于十二胺。
[Abstract]:A novel Gemini ester containing cationic surfactant M-302B was synthesized from epichlorohydrin, dodecyl dimethyl tertiary amine and succinic acid. The flotation experiments of quartz and magnetite with M-302B as collector show that M-302B can be used for flotation separation of quartz and magnetite. Using M-302B as collector, the flotation test of the concentrate after roasting and magnetic separation in Jiugang concentrator was carried out. The results showed that under the conditions of pulp pH 7, temperature 25 鈩，

本文编号：1806622