Flotation of kaolinite and diaspore with hexadecyl dimethyl benzyl ammonium chloride

来源期刊：中南大学学报(英文版)2008年第3期

论文作者：胡岳华 欧阳魁 曹学锋 张丽敏

文章页码：378 - 381

Key words：kaolinite; diaspore; hexadecyl dimethyl benzyl ammonium chloride; dodecyl amine; reverse floatation; infra-red spectrum

Abstract: Tertiary amine was synthesized from fatty amine and formaldehyde. And then the synthesized tertiary amine was used to react with benzyl chloride to synthesize hexadecyl dimethyl benzyl ammonium chloride (1627) at ambient pressure. Using the synthesized 1627 as collector, the flotation properties of diaspore and kaolinite were investigated by single mineral and mixed mineral test. The flotation mechanism of diaspore, kaolinite and 1627 was discussed based on FTIR spectra. The results show that the mass ratio of aluminum to silicate achieves 15.02 and the recovery of alumina in concentrate is 43.07% using 1627 as a collector. The 1627 is found to be a more effective and a promising collector for reverse flotation to remove aluminum-silicate minerals from bauxite.

基金信息：the National High-Tech Research and Development Program of China
the Major State Basic Research Development Program of China