FLOCCULATION AND FILTRATION DEWATERING OF COAL SLURRIES AIDED BY A HYDROPHOBIC POLYMERIC FLOCCULANT

被引：7
|
作者：
ATTIA, YA
YU, S
机构：
[1] Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 1991年 / 26卷 / 06期
关键词：
D O I：
10.1080/01496399108050497
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study investigated the adsorption behavior of a totally hydrophobic polymer, FR-7A, and its role in the flocculation and filtration of fine coal slurries. Adsorption of FR-7A on coal, pyrite, and shale minerals revealed that: (a) FR-7A had a higher adsorption affinity to coal and pyrite than that on shale; (b) an acidic slurry condition favored unselective adsorption of FR-7A on coal minerals, leading to improved total flocculation and filtration of fine coal slurries, while alkaline pH and the presence of SMP favored selective adsorption and flocculation of coal from associated minerals in the slurry; and (c) FR-7A aided the flocculation of coal slurries and improved the moisture removal by filtration from 42.4 to 37%.
引用
收藏
页码：803 / 818
页数：16
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