Iron Resources Selective Beneficiation by Molten Oxidation from Copper Slag
Iron in copper slag is in the form of iron silicate.We proposed to oxidize the iron silicate to magnetite,allowing the selective recovery of the slag”s iron content by magnetic separation.This proposal would effectively decrease the volume of dumped slag,and the recovered iron concentrate could be used for the future iron or steel making.The crystallization morphology of magnetite and hematite were studied as reaction products of the molten oxidation of copper slag.A gas atmosphere of 1 vol%of oxygen was found to effectively precipitate the iron in the molten slag as magnetite.
molten oxidation magnetite precipitation copper slag
Fan Yong Shibata Etsuro Iizuka Atsushi Nakamura Takashi
Graduate School of Environmental Studies,Tohoku University 6-6-20 Aramaki-Aza-Aoba,Aoba-ku,Sendai,98 Institute of Multidisciplinary Research for Advanced Materials(IMRAM),Tohoku University 2-1-1 Katahi
国内会议
上海
英文
1-4
2015-10-21（万方平台首次上网日期，不代表论文的发表时间）