Calcified roasting-acid leaching process of vanadium from low-grade vanadium-containing stone coal

查看全文 作　　者：WANG [1]Taiying;XU [1]Longjun;LIU [2]Chenlun;ZHANG [1]Zhaodi

机构地区：[1]State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University;[2]College of Chemistry and Chemical Engineering, Chongqing University

出　　处：《Chinese Journal Of Geochemistry》索引2014年第33卷第2期,共5页

基　　金：the Scientific Research Foundation of State Key Lab.of Coal Mine Disaster Dynamics and Control(2011AD105827-MS201206);Scientific&Technologic Program for the Bureau of Land Resources and Housing Management of Chongqing 摘　　要：The low-grade vanadium-containing stone coal used in this experiment was collected from Wuxi Country, Chongqing City, China. The experiment focused on the vanadium recovery from roasted residue through optimizing the process conditions of an effective and environmentally-friendly technology, named calcified roasting-sulfuric acid leaching technology. By single-factor experiments and orthogonal experiments, the effects of roasting temperature, roasting time, sulfuric acid concentration and leaching time on the leaching ratio of vanadium were analyzed. The results showed that the leaching ratio of vanadium reached 85.5% under the proper technological conditions of roasting temperature=950℃, roasting time=4 h, 40% concentration of sulfuric acid and leaching time=6 h. 关键词：含钒石煤钙化焙烧酸浸工艺低品位硫酸浓度正交实验焙烧时间浸出时间

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Calcified roasting-acid leaching process of vanadium from low-grade vanadium-containing stone coal

参考文献(14)

引证文献(17)

耦合文献(107)

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