The Synthesis of Novel Organosilicon Collector QAS222 and its Flotation Performance on Aluminosilicate Minerals

Author:

Yu Xin Yang1,Xia Liu Yin1,Wang Shuai1,Zhong Hong1

Affiliation:

1. Central South University

Abstract

In the article the organosilicon Quaternary Ammonium surfactant QAS222 was synthesized by one step reaction from silicane coupling agent and dodecyl amine, and its collecting ability to aluminosilicate minerals was investigated. The results showed that the percent conversion of dodecyl amine was more than 95% and the content of novel organosilicon in the production was about 96.53% when reaction was conducted at 80°C for 37 hours, with silicane coupling agent: N, N-Dimethyl dodecyl amine: KI=1.1:1:0.01 by the molar ratio, using anhydrous ethanol as solvent, protecting the reacting system with N2. The synthesizing technology was brief, efficient with low cost and easy to operate and industrialize. The flotation tests indicated that the organosilicon surfactant QAS222 was an effective collector for aluminosilicate minerals in whole pulp pH, by which the kaolinite, pyrophyllite and illite minerals could be floated well. It provided a good way for application preparation of organo-silicon compounds.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference12 articles.

1. WANG Jin, CHEN Jun-zhi, SHAO Chao-qun, DETERGENT AND COSMENTICS, Vol. 31, No. 10, 18-24, 2008(In Chinese).

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3. H eckert David C, W att JR David, M. Organosilane compounds, U.S. Patent 4006176. (1977).

4. WANG HaiLong, QIAO Ning, WEI Gang, Journal of Beijing University of Chemical Technology (Natural Science), Vol. 36, No. 5, 61-64, 2009 (In Chinese).

5. Chrzascik, Ireneusz, Critical Reviews in Analytical Chemistry, Vol. 40, No. 4, 261-270, (2010).

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