The role of sodium hexametaphosphate in the dissolution process of kaolinite and kaolin

被引：102

作者：

Andreola, F

Castellini, E ^{[1
]}

Manfredini, T

Romagnoli, M

机构：

[1] Univ Modena, Dept Mat Engn, I-41100 Modena, Italy

[2] Univ Modena, Dept Chem, I-41100 Modena, Italy

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2004年 / 24卷 / 07期

关键词：

chemical properties; clays; hexametaphosphate; surfaces; suspensions;

D O I：

10.1016/S0955-2219(03)00366-2

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Suspensions of kaolinite and ceramic grade kaolin in sodium hexametaphosphate solutions at different concentrations were prepared and kept at constant temperature for 4 h: the solutions obtained after centrifugation and filtration were analysed using a ICP technique to determine the concentration of significant cations. The results allowed to stress the role of NaHMP in the dissolution process of kaolinite and ceramic grade kaolin. The role of accessory minerals in ceramic grade kaolin dissolution was discussed in the light of the obtained data. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：2113 / 2124

页数：12

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