Coal Flotation Improvement Through Hydrophobic Flocculation Induced by Polyethylene Oxide

被引：19
作者：
Liang, Long [1 ]
Tan, Jiakun [1 ]
Li, Zhiyuan [1 ]
Peng, Yaoli [1 ,2 ]
Xie, Guangyuan [1 ,2 ]
机构：
[1] China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou 221116, Peoples R China
[2] China Univ Min & Technol, Natl Engn Res Ctr Coal Preparat & Purificat, Xuzhou 221116, Peoples R China
来源：
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION | 2016年 / 36卷 / 03期
关键词：
Coal; flotation; flocculation; kaolinite; polyethylene oxide; DEWATERING BEHAVIOR; OIL AGGLOMERATION; FLOC FLOTATION; FINES; PARTICLES; GALENA;
D O I：
10.1080/19392699.2015.1068171
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：
Polyethylene oxide (PEO) is an efficient flocculant for the settling of various minerals including coal, quartz, and phyllosilicate. However, it is rarely used in coal flotation. In this research, the flotation of a bituminous coal with PEO addition was investigated. It was found that PEO worsened the flotation performance in tap water. But it significantly improved the flotation in the sodium hexametaphosphate solution. The tube-settling experiments, floc observation and Zeta potential analysis indicated that the sodium hexametaphosphate hindered the flocculation of kaolinite so coal was selectively flocculated.
引用
收藏
页码：139 / 150
页数：12
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