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] BOTSARIS GD, 1983, 5TH INT S COAL SLURR, P1181
[2] CASASSA EZ, 1984, 6TH INT S COAL SLURR, P251
[3] CHANG CH, 1984, 6TH INT S COAL SLURR, P219
[4] ERCOLANI D, 1987, 12TH INT C SLURR TEC, P277
[5] ESUMI K, 1985, NENRYO KYOKAI SHI, V64, P345
[6] KITAHARA H, 1977, SHIKIZAI KYOKAI SHI, V50, P681
[7] KIYONAGA Y, 1984, 6TH INT S COAL SLURR, P403
[8] OGURA Y, 1986, 8TH P INT S COAL SLU, P129
[9] Rehacek K., 1970, FARBE LACK, V76, P656
[10] SHIRATO R, 1986, 8TH INT S COAL SLURR, P738

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