典型文献
Separation of Sc2O3 from Bayan Obo tailings through an innovative roasting method
文献摘要：
Sc2O3 was successfully extracted and separated from Bayan Obo tailings by a CaCl2-reductive carbon powder-combinative roasting method.The optimum pro-cess condition was obtained through adjusting specific ef-fect factors.It is found that Sc2O3 with the ratio of 87.51％is leached out under roasting temperature of 800℃for 2 h through adding 73％CaCl2,and 20％reductive carbon powder with liquid to solid ratio of 3.Moreover,the specific reaction mechanism during roasting process was investi-gated by thermogravimetric-differential scanning calorimetry(TG-DSC)and X-ray diffraction(XRD)tech-niques.The results show that the main phases(SiO2,CaF2 and NaFeSi2O6)as well as important phases(LiScSi2O6,REFCO3 and REPO4)would turn into new phases(CaFe-SiO4,Fe,Ca3(PO4)2,NaCl,RE2O3 and Sc2O3)after com-plicated reactions,which effectively break up the original mineral compositions and activate the existing state of containing scandium matter,consequently facilitating the subsequent hydrochloric acid leaching process.
文献关键词：
中图分类号：
作者姓名：
Xin-Jun Bao;Zhi-Jian Wang;Liu-Jiang Xi;Ji-Bo Liu;Zheng-Fu Su;Tao Yang;Wei Cheng;De-Bi Zhou
作者机构：
Institute for Energy-Storing Materials Research,Hunan Rare Earth Metal Material Research Institute,Changsha 410126,China;College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;School of Metallurgical Engineering,Hunan University of Technology,Zhuzhou 412007,China
文献出处：
引用格式：
[1]Xin-Jun Bao;Zhi-Jian Wang;Liu-Jiang Xi;Ji-Bo Liu;Zheng-Fu Su;Tao Yang;Wei Cheng;De-Bi Zhou-.Separation of Sc2O3 from Bayan Obo tailings through an innovative roasting method)[J].稀有金属（英文版）,2022(03):1071-1076
A类：
NaFeSi2O6,LiScSi2O6,REFCO3,CaFe
B类：
Separation,Sc2O3,from,Bayan,Obo,tailings,through,innovative,roasting,method,was,successfully,extracted,separated,by,CaCl2,reductive,carbon,powder,combinative,optimum,condition,obtained,adjusting,specific,factors,It,found,that,leached,out,under,temperature,adding,liquid,solid,Moreover,mechanism,during,process,investi,gated,thermogravimetric,differential,scanning,calorimetry,DSC,ray,diffraction,tech,niques,results,show,main,phases,SiO2,CaF2,well,important,REPO4,would,turn,into,new,SiO4,Ca3,NaCl,RE2O3,after,plicated,reactions,which,effectively,break,up,original,mineral,compositions,activate,existing,state,containing,scandium,matter,consequently,facilitating,subsequent,hydrochloric,acid,leaching
AB值：
0.606755
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
