THE USE OF LOW RANK BROWN COAL AS AN ION-EXCHANGE MATERIAL .1. BASIC PARAMETERS AND THE ION-EXCHANGE MECHANISM

被引：60

作者：

LAFFERTY, C ^{[1
]}

HOBDAY, M ^{[1
]}

机构：

[1] ROYAL MELBOURNE INST TECHNOL,DEPT APPL CHEM,MELBOURNE,VIC 3000,AUSTRALIA

来源：

FUEL | 1990年 / 69卷 / 01期

关键词：

brown coal; ion exchange; sodium;

D O I：

10.1016/0016-2361(90)90261-N

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 cation exchange properties of three Victorian brown coals were investigated. Coal from the Yallourn North Extension (YNE) behaved differently from the Loy Yang (LY) and Yallourn (Y) coals. All coals showed increased cation exchange capacity (CEC) as solution pH was increased, but the YNE coal exhibited a CEC double that of the other coals for all cations except sodium. The solution pH for YNE coals was consistently two pH units above that for the other coals. These observations were explained in terms of the different sodium contents of the coals. A simple model is proposed to explain the pH dependence of coal ion exchange properties. © 1990.

引用

页码：78 / 83

页数：6

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