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首次将季盐作为捕收剂用于高岭石浮选研究,通过单矿物浮选试验、动电位测定和分子动力学模拟,分析了十二烷基三甲基氯化铵(DTAC)和十四烷基三丁基氯化(TTPC)对高岭石的浮选行为和作用机理.结果表明,高岭石浮选回收率在98%情况下,TTPC药剂用量仅为DTAC用量的一半.季盐TTPC特有的分子结构促进了其与矿物表面间CH…O氢键的形成;更强的静电作用力和吸附能使得季盐(TTPC)在高岭石表面吸附更加牢固,从而使其具有更优异的浮选性能.
For the first time, quaternary salt was used as a collector for kaolinite flotation studies. The effects of dodecyltrimethylammonium chloride (DTAC) and trisodium citrate (DTAC) were analyzed by single mineral flotation, potentiodynamic and molecular dynamics simulations. The flotation behavior and mechanism of tetraalkyltributylchloride (TTPC) on kaolinite show that the dosage of TTPC is only half that of DTAC when the recovery rate of kaolinite flotation is 98% The unique molecular structure of salt TTPC promotes the formation of CH ... O hydrogen bonds with mineral surface. The stronger electrostatic force and adsorption can make TTPC adsorb on kaolinite more firmly, Excellent flotation performance.