EFFECTS OF IONIC SURFACE ACTIVE AGENTS ON THE FLOATABILITY AND ELECTROPHORETIC MOBILITY OF SELECTED CLAYS
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概要
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Flotation and electrophoretic mobility of selected clays, i.e., allophane, imogolite, and layer-type clay minerals, were investigated as a function of pH and concentration of several ionic surface active agents. Cationic surface active agents were effectively adsorbed by clay surfaces where negative charges predominated, while an anionic surface active agent was adsorbed by allophane and imogolite in acid solutions where positive charges predominated. The maximum flotation of clay particles with surface active agents was observed when the electrophoretic mobility of the clays approached to zero. Imogolite particles were also removed by flotation with an anionic surface active agent at concentrations above 1.67×10^<-4> M at pH 9.1-9.3 where allophane particles were not removed. In the case of 1 : 1 type clay minerals, only small amounts of particles were removed with cationic surface active agents.
- 日本粘土学会の論文
- 1975-00-00
著者
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