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1000 g硫化锑精矿每次,熔炼完成后分离金属和熔盐渣.熔盐渣进行水浸以分离渣和盐,水浸的条件为液固比5:1,50 ℃溶解2 h.进行了水浸液和水浸渣的成分分析,计算主要元素Sb,Fe的分配关系如图6所示. 图6 熔炼产物中主要元素的分配关系 Fig. 6 Distribution of main elements in molten products 从图6中可以看出,锑的...; (5) 而生成物的FeOOH在水浸渣烘干过程中,发生脱水氧化,从而形成Fe3O4. 图7 熔盐渣和水浸渣的物相成分 Fig. 7 Phase composition of molten slag (a) and leaching slag (b) 3 结论 1) Sb2S3首先与FeO发生交互反应生成Sb2O3与FeS,Sb2O3再被还原剂还......
Sticking of iron ore pellets in direct reduction with hydrogen and carbon monoxide: Behavior and preventionYI Ling-yun(易凌云), HUANG Zhu-cheng(黄柱成), LI Tie-hui(李铁辉), JIANG Tao(姜涛) (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:A series of reduction experiments of iron ore pellets with hydrogen, carbon monoxide and their mixture were......
STUDY ON THE VARIATION MECHANISM OF CARBON CONTENT OF LIQUID IRON IN MELTING GASIFIER Y.Xu1,Q.L2,L.Y.Sun1,Q.F.Chai3 (1.U;2.U)(U;3.Hebei Institute of Vocation and Technology, Shijiazhuang 050031, China) Abstract:This paper studied the changing principles of carbon content in direct reduction iron(DRI) and liquid iron in the COREX melting gasifier. Under the normal workingconditions......
铁. 关键词: 铜渣；直接还原；磨矿；磁选；金属铁 中图分类号:TF09,X758 文献标志码:A Iron recovery from copper-slag with lignite-based direct reduction followed by magnetic separation YANG Hui-fen, JING Li-li, DANG Chun-ge (Civil and Environmental Engineering School,University of Science and Technology Beijing, Beijing 100083, China) Abstract: In order to recycle iron from copper slag......
Laser Surface Remelting of Medium Ni-Cr Infinite Chilling Cast Iron Roll XIE Song-jing1,ZHANG Qun-li1,YAO Jian-hua1 (1.Zhejiang University of Technology, Hangzhou, China) 摘要:Laser surface remelting of medium Ni-Cr infinite chilling cast iron was performed with a continuous wave CO2 laser beam with the power of 7 KW under the argon shielding. The microstructural analysis of the laser remelted......
) (Department of Chemistry, Qinghai Normal University, Xining 810008, China) Abstract: The kinetics of La-Co alloy film in acetamide-urea-NaBr molten salt electrolyte at 353K was investigated..., and reaches the maximum of 66.32%. Key words: La-Co alloy film; acetamide-urea-NaBr molten salt electrolyte; electroreduction; inductive co-deposition; rare earth elements CLC number: O641.4......
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Preparation of Y2O3?Eu3+ phosphor by molten salt assisted method HUANG Yan(黄 燕)1, 2, 3, YE Hong-qi(叶红齐)1, ZHUANG Wei-dong(庄卫东)2, HU Yun-sheng(胡运生)2, ZHAO Chun-lei(赵春雷)2, LI Cui(李 萃)2, GUO Song...; Abstract: A kind of fine and quasi-spherical Y2O3?Eu3+ phosphor was prepared by firing a preparative precursor at 1 200 ℃ for 2 h with the molten salts of Na2CO3, S and NaCl. The precursor......
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