The flotation of quartz from iron minerals with a combined quaternary ammonium salt
The flotation of quartz from iron minerals with a combined quaternary ammonium salt
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DOI：
10.1016/j.minpro.2005.03.001
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发表时间：
2005-10-01
影响因子：
--
通讯作者：
Ren, JW
中科院分区：
文献类型：
--
作者：
Wang, YH;Ren, JW
采用复合季铵盐捕收剂浮选石英。对于磁铁矿和镜铁矿浮选石英，其选择性和捕收性优于十二烷基氯化胺和十六烷基三甲基溴化铵，但在石英与镜铁矿浮选分离中应采用该药剂。通过Zeta电位、接触角的测定以及季铵盐与季铵盐结合后的吸附实验，结果表明，季铵盐结合后更有利于吸附在石英表面，改变了石英表面的Zeta电位和接触角，增加了其疏水性。FTIR结果表明，结合季铵盐以物理吸附方式吸附在石英表面，没有新的产物生成。(C)2005 Elsevier B.V.保留所有权利。
A combined quaternary ammonium salt was used as a collector for the flotation of quartz. It shows better selectivity and collectability than dodecyl amine chloride and cetyl trimethylammonium bromide for the flotation of quartz from magnetite and specularite, but the quebracho should be used in the flotation separation of quartz from specularite. By the measurement of zeta potentials, contact angles, and adsorption of the combined quateman, ammonium salt the results show that the combined quaternary ammonium salt is preferred to adsorb on the surface of quartz, changes its zeta potentials and contact angles, and increases its hydrophobicity. The results of FTIR show that the combined quaternary ammonium salt adsorbs on the quartz surface in physical adsorption with no new products. (c) 2005 Elsevier B.V. All rights reserved.