| 羧甲基纤维素对层状镁硅酸盐矿物浮选的抑制与分散作用 |
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| 引用本文： | 龙涛,冯其明,卢毅屏,张国范,欧乐明,潘高产.羧甲基纤维素对层状镁硅酸盐矿物浮选的抑制与分散作用[J].中国有色金属学报,2011,21(5). |
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| 作者姓名： | 龙涛 冯其明 卢毅屏 张国范 欧乐明 潘高产 |
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| 作者单位： | 中南大学资源加工与生物工程学院,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展计划资助项目 |
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| 摘 要： | 通过浮选实验、润湿接触角测量和Zeta电位测试,考察滑石、绿泥石和蛇纹石3种层状镁硅酸盐矿物的可浮性及其对金川镍矿中的硫化矿物-黄铁矿浮选的影响,并研究羧甲基纤维素(CMC)对3种层状镁硅酸盐矿物浮选的抑制与分散作用.结果表明;3种镁硅酸盐矿物表面性质与可浮性不同,对硫化矿浮选的影响方式与机理也存在区别:蛇纹石天然可浮性较差,但由于静电作用易与黄铁矿发生异相凝聚,降低黄铁矿的可浮性进而影响其回收率,CMC可通过调整矿物表面电性而起到分散作用;滑石与绿泥石并不影响黄铁矿的可浮性,但由于其天然可浮性相对较好,易进入精矿增加MgO杂质含量,CMC能调整矿物表面润湿性而抑制其浮选.
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| 关 键 词： | 羧甲基纤维素 镁硅酸盐矿物 浮选 抑制 分散 |
Depression and dispersion effect of carboxy methyl cellulose on flotation of layered magnesium-silicates |
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| LONG Tao,FENG Qi-ming,LU Yi-ping,ZHANG Guo-fan,OU Le-ming,PAN Gao-chan.Depression and dispersion effect of carboxy methyl cellulose on flotation of layered magnesium-silicates[J].The Chinese Journal of Nonferrous Metals,2011,21(5). |
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| Authors: | LONG Tao FENG Qi-ming LU Yi-ping ZHANG Guo-fan OU Le-ming PAN Gao-chan |
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| Affiliation: | LONG Tao,FENG Qi-ming,LU Yi-ping,ZHANG Guo-fan,OU Le-ming,PAN Gao-chan(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China) |
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| Abstract: | The floatability of three types of layered magnesium-silicates(talc,chlorite and serpentine),the negative effect of magnesium-silicates on the flotation of pyrite(one sulfide mineral of Jinchuan nickel mine) and the depression and dispersion effect of carboxy methyl cellulose(CMC) on the flotation of magnesium-silicates were investigated through flotation tests,contact angle measurements and zeta potential measurements.The results show that the surface properties and floatability of these magnesium-silicate... |
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| Keywords: | carboxy methyl cellulose magnesium-silicate flotation depression dispersion |
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