The Effects of Conditioning Time on the Flotation of Oxidized Coal

被引：24
|
作者：
Xia, W. -C. [1 ]
Yang, J. [1 ]
Liang, C. [1 ]
Zhu, B. [1 ]
机构：
[1] China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou 221116, Jiangsu, Peoples R China
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2014年 / 36卷 / 01期
关键词：
conditioning; Fourier-transform infrared; flotation; oxidized coal; time; LOW-RANK COAL; DESULFURIZATION; FLOATABILITY; COLLECTOR; LIGNITE; FROTH;
D O I：
10.1080/15567036.2012.697095
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：
In this investigation, the flotation behavior of oxidized coal affected by the conditioning time separated into two periods: prewetting time and collector conditioning time, were discussed. The prewetting time is 0 min, 1 min, 2 min, 3 min, 4 min, and 5 min, respectively. The collector conditioning time is 1 min, 2 min, 3 min, 4 min, 5 min, and 6 min, respectively. Fourier-transform infrared was used to analyze the chemical property of oxidized coal and fresh coal. The results show that the oxidized coal surface is more hydrophilic than the fresh coal. The results of flotation tests show that combustible matter recovery will be higher while the prewetting time is shorter. The mechanism of effects of conditioning time on the flotation of oxidized coal was discussed.
引用
收藏
页码：31 / 37
页数：7
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