Effects of magnetic pretreatment on diesel oil properties and its relationship to low rank coal flotation

被引：2
|
作者：
Zheng, Changlong [1 ]
Zhang, Haijun [2 ]
Ru, Yi [1 ]
Xu, Ming [1 ]
机构：
[1] China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou, Jiangsu, Peoples R China
[2] China Univ Min & Technol, Natl Engn Res Ctr Coal Proc & Purificat, 1 Daxue Rd, Xuzhou 221116, Jiangsu, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2018年 / 53卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Flotation; magnetic pretreatment; diesel oil; low rank coal; contact angle analyses; SURFACE; WATER; DESULFURIZATION; FLOATABILITY;
D O I：
10.1080/01496395.2017.1389961
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effects of diesel oil pretreated with magnetic field on low rank coal flotation were investigated in this study. Flotation results demonstrated that combustible matter recovery increased with the magnetized time (MT) and magnetic field intensity (MFI), then plateaued while concentrate ash barely changed. The highest combustible matter recovery (73.86%) was obtained under 10 min of MT and 0.2 T of MFI. These results coincided with the analyses of interfacial tension and viscosity and supported by the results of SEM and contact angle measurements, indicating that magnetized diesel oil has a beneficial effect on low rank coal flotation.
引用
收藏
页码：527 / 534
页数：8
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