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Citation: ZHANG Hong-Xi, BAI Hong-Jin, DONG Xian-Shu, WANG Zhi-Zhong. Enhanced Desulfurizing Flotation of Coal by Sonoelectrochemical Method[J]. Chinese Journal of Applied Chemistry, ;2009, 26(3): 333-336. shu

Enhanced Desulfurizing Flotation of Coal by Sonoelectrochemical Method

1.
a College of Life Science, Tarim University, Alaer 843300;
2.
b College of Mining Engineering, Taiyuan University of Technology, Taiyuan;
3.
c College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan

Corresponding author: ZHANG Hong-Xi,
Received Date: 13 February 2008
Available Online: 26 May 2008

The feasibility of enhanced desulfurizing flotation of coal was investigated by sonoelectrochemical method.The electrolyte was calcium hydroxide,the additive was ethanol.The effects of treating conditions,including the concentration of anhydrous ethanol,sonoelectrolytic time,concentration of calcium hydroxide,current density,ultrasound intensity on desulfurization were studied by single factor method.The optimal experimental conditions of 2.04 mol/L,40 min,2.0 g/L,7.5×10^-3 A/cm² and 1.23 W/cm² were achieved.Under the optimal conditions,the desulfurization could be up to 82.72%.The raw coal and the coal sample treated with sonoelectrochemical method were analysed via infrared spectroscopy.The result shows the desulfurizing flotation of coal by sonoelectrochemical method is effective.
- sonoelectrochemistry,
- sonocavitation,
- enhanced flotation,
- desulfurization
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