BEHAVIOR OF SURFACTANTS IN A HIGHLY LOADED COAL-WATER SLURRY .2. EFFECTS OF COAL PROPERTIES ON THE BEHAVIOR OF A SURFACTANT

被引：7

作者：

OGURA, T ^{[1
]}

TANOURA, M ^{[1
]}

HIRAKI, A ^{[1
]}

机构：

[1] MITSUBISHI HEAVY IND CO LTD, NAGASAKI RES & DEV CTR, NAGASAKI 85091, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1993年 / 66卷 / 05期

关键词：

D O I：

10.1246/bcsj.66.1350

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The roles and behaviors of two kinds of anionic surfactants were investigated in order to clarify their influence on the properties of a highly loaded coal water slurry (CWM) prepared from six kinds of coals. It was confirmed that the adsorbed surfactants on coal particles and their presence in water were both required for preparing practical CWMs of every type of coal. The ion concentrations of alkaline earth metals and protons derived from coal increased the adsorption of surfactants; the amounts of the adsorbed surfactants varied from coal to coal. A surfactant of molecular weight around 5000 was found to be preferentially adsorbed, and thus the most effective for controlling the properties of the CWM.

引用

页码：1350 / 1355

页数：6

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