Experimental investigation of coal dust wetting ability of anionic surfactants with different structures

doi:10.1016/j.psep.2018.10.010

CORC > 上海财经大学 > 上海财经大学

	Experimental investigation of coal dust wetting ability of anionic surfactants with different structures
	Xu, Chaohang 1,2; Wang, Deming 1,2; Wang, Hetang 1,2; Ma, Liyang 1,2; Zhu, Xiaolong 1,2; Zhu, Yunfei 1,2; Zhang, Yi 3; Liu, Fangming 4
刊名	PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
	2019-01
卷号	121 页码:69-76
关键词	Coal dust Anionic surfactant Wetting time Surface tension Adsorption density Hydrophilic-lipophilic balance
ISSN号	0957-5820
DOI	10.1016/j.psep.2018.10.010
英文摘要	To better understand the coal dust wetting ability of anionic surfactants with different structures, sodium dodecyl sulfate (SDS), sodium dodecyl sulfonate (SDDS), and sodium dodecyl benzene sulfonate (SDBS) were selected. The surface tension, wetting time, and infrared spectra of coal dust were tested. The hydrophilic-lipophilic balance (HLB) values of the surfactants were calculated. Results showed that the decrease in the surface tension could shorten the wetting time at low surfactant concentrations. But the decrease in the wetting time was no longer related to the constant surface tension that was lower than 45 ml\l/m. The adsorption density depends on the hydrophobic interactions and electrostatic repulsions between the surfactant molecules and the coal dust. During the dynamic immersion process, the surfactants with high HLB values could bring the coal dust into the bulk solution rapidly. The wetting time of coal dust for SDBS with a high adsorption density and low HLB or SDS with a small adsorption density and high HLB was relatively longer. The adsorption density and HLB value of SDDS were intermediate between those of SDS and SDBS. Under the combined action of these two factors, the wetting time of SDDS was shorter than those of SDS and SDBS. (C) 2018 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
WOS研究方向	Engineering
语种	英语
出版者	INST CHEMICAL ENGINEERS
WOS记录号	WOS:000462955700008
内容类型	期刊论文
源URL	[http://10.2.47.112/handle/2XS4QKH4/385]
专题	上海财经大学
作者单位	1.China Univ Min & Technol, Sch Safety Engn, Xuzhou 221116, Jiangsu, Peoples R China; 2.Minist Educ, Key Lab Gas & Fire Control Coal Mines, Xuzhou 221116, Jiangsu, Peoples R China; 3.Xuzhou Anyun Min Technol Inc, Xuzhou 221008, Jiangsu, Peoples R China; 4.Shanghai Univ Finance & Econ, Sch Marxism, Shanghai 200000, Peoples R China
推荐引用方式 GB/T 7714	Xu, Chaohang,Wang, Deming,Wang, Hetang,et al. Experimental investigation of coal dust wetting ability of anionic surfactants with different structures[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2019,121:69-76.
APA	Xu, Chaohang.,Wang, Deming.,Wang, Hetang.,Ma, Liyang.,Zhu, Xiaolong.,...&Liu, Fangming.(2019).Experimental investigation of coal dust wetting ability of anionic surfactants with different structures.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,121,69-76.
MLA	Xu, Chaohang,et al."Experimental investigation of coal dust wetting ability of anionic surfactants with different structures".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 121(2019):69-76.