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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
This paper mainly introduces the principle and the importance of the desulfurization technology of magnetic separation. And through experiments,we know that with the increase of semi-coke temperature, desulfurization efficiency begins to increase and then decrease. The best pyrolysis temperature of coal is 550℃, whose desulfurization rate is 73.06%. It indicates that magnetic desulfurization after low temperature treatment can remove sulfur in coal.