典型文献
Effect of chemical composition on the element distribution, phase composition and calcification roasting process of vanadium slag
文献摘要：
The chemical composition of vanadium slag significantly affects its element distribution and phase composition, which affect the subsequent calcification roasting process and vanadium recovery. In this work, seven kinds of vanadium slags derived from different regions in China were used as the raw materials to study the effects of different components on the vanadium slag's elements distribution, phase composi-tion, calcification roasting, and leaching rate of major elements using scanning electron microscope, X-ray diffraction analysis, and inductively coupled plasma-optical emission spectroscopy. The results show that the spinel phase is wrapped with silicate phase in all vanadium slag samples. The main elements in the spinel phase are Cr, V, and Ti from the interior to the exterior. The size of spinel phase in low chromium va-nadium slag is larger than the other vanadium slags with higher chromium contents. The spinel phase of high-calcium and high-phosphorus va-nadium slag is more dispersed. The strongest diffraction peak of vanadium spinel phase in the vanadium slag migrates to a higher diffraction angle, and (Fe0.6Cr0.4)2O3 is formed after calcification roasting as the chromium content increased. A large amount of Ca2SiO4 is produced be-cause excess Ca reacts with Si in high-calcium and high-phosphorus vanadium slag. The vanadium leaching rate reaches 88％ in some vana-dium slags. The chromium leaching rate is less than 5％ in all vanadium slags. The silicon leaching rate of high-calcium and high-phosphorus vanadium slag is much higher than that of the other slags. The leaching rate of manganese is higher than 10％, and the leaching rates of iron and titanium are negligible.
文献关键词：
中图分类号：
作者姓名：
Tangxia Yu;Tao Jiang;Jing Wen;Hongyan Sun;Ming Li;Yi Peng
作者机构：
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Panzhihua 617000,China;School of Metallurgy,Northeastern University,Shenyang 110819,China;Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of Education,Northeastern University,Shenyang 110819,China;Liaoning Key Laboratory for Metallurgical Sensor and Technology,Shenyang 110819,China
文献出处：
引用格式：
[1]Tangxia Yu;Tao Jiang;Jing Wen;Hongyan Sun;Ming Li;Yi Peng-.Effect of chemical composition on the element distribution, phase composition and calcification roasting process of vanadium slag)[J].矿物冶金与材料学报,2022(12):2144-2151
A类：
nadium,6Cr0,vana
B类：
Effect,chemical,composition,distribution,phase,calcification,roasting,process,vanadium,significantly,affects,its,which,subsequent,recovery,In,this,work,seven,kinds,slags,derived,from,different,regions,China,were,used,raw,materials,study,effects,components,elements,leaching,major,using,scanning,electron,microscope,ray,diffraction,analysis,inductively,coupled,plasma,optical,emission,spectroscopy,results,show,that,spinel,wrapped,silicate,all,samples,main,are,Ti,interior,exterior,size,low,chromium,larger,than,other,higher,contents,calcium,phosphorus,more,dispersed,strongest,peak,migrates,angle,Fe0,2O3,formed,after,increased,amount,Ca2SiO4,produced,be,cause,excess,reacts,reaches,some,less,silicon,much,manganese,iron,titanium,negligible
AB值：
0.382129
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