IMPROVEMENT OF BLEACHING OF KAOLIN USING CHELATING AGENTS

被引：0
|
作者：
龚文琪 [1 ]
机构：
[1] Wuhan University of Tochnology
来源：
Journal of Wuhan University of Technology-Materials Science | 1997年 / Z1期
关键词：
bleach; kaolin; chelating agent; sodium dithionite; whiteness;
D O I：
暂无
中图分类号：
O611 [化学元素与无机化合物];
学科分类号：
070301 ; 081704 ;
摘要：
Bleaching of the kaolin ore from Shaziling Kaolin Mine in Jiangxi Province of China was studied with the aim of enhancing the quality and value of the ore to meet the requirements from the ceramics manufacturers. Factors affecting the reductive bleaching of kaolin ore with sodium dithionite as the bleaching agent were studied and optimized to increase the whiteness of the kaolin ore from 38. 5% to about 65%. However, it was found that in the conventional bleaching process, a washing step to remove the ferrous ions
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页码：47 / 57
页数：11
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