BEHAVIOR OF SURFACTANTS IN A HIGHLY LOADED COAL-WATER SLURRY .1. EFFECTS OF SURFACTANT CONCENTRATION ON ITS PROPERTIES

被引：26

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.66.1343

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two types of anionic surfactants and one type of nonionic surfactant were investigated in order to clarify their roles and behaviors in a highly loaded coal-water slurry (CWM) of high coal concentration. Both saturated adsorption of the surfactant on coal particles and its presence in water were found to be necessary to prepare a practical CWM. The adsorption isotherms of the surfactants were described using the ''Langmuir'' equation. Each surfactant had a characteristic value of saturated adsorption. An estimation method of the required amount of the surfactant to prepare a practical CWM was proposed. The zeta potential of the CWM was found to vary with the coal concentration, and to be controlable using surfactants, thus failing to be a proper measure of the CWM at high coal concentrations.

引用

页码：1343 / 1349

页数：7

共 17 条

[1]

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[2]

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[3]

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[6]

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[7]

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[8]

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[9]

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[10]

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