ACTIONS OF WETTING AGENTS ON COAL-DUST

被引:31
作者
GLANVILLE, JO [1 ]
WIGHTMAN, JP [1 ]
机构
[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT CHEM,BLACKSBURG,VA 24061
关键词
D O I
10.1016/0016-2361(79)90189-3
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The rate of wetting of coal dust by aqueous solutions of surface active agents (surfactants) has been studied. It has been shown that surfactant is adsorbed onto the coal surface during the wetting process. Rates of wetting by solutions of the widely used sodium salt of di(2-ethylhexyl)sulphosuccinic acid (Aerosol OT) are strongly influenced by low concentrations (1-2 mg/l) of dipositive metal ions. After wetting, electron spectroscopy for chemical analysis (ESCA) has been used to show the presence of these metal ions and the surfactant on the surface of the particles of coal dust. © 1979.
引用
收藏
页码:819 / 822
页数:4
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