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Extraction of vanadium from high calcium vanadium slag using direct roasting and soda leachingXin-sheng Li and Bing Xie College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China摘 要:The extraction of vanadium from high calcium vanadium slag was attempted by direct roasting and soda leaching. The oxidation process......
Effect of Calcium on the Vanadium Extraction from High Calcium Type Stone Coal包申旭1,2,LIANG Liang1,张一敏1,2,HAN Shihua1,HU Yangjia11. College of Resources and Environmental Engineering, Wuhan University... was added, but the acid leaching rate of vanadium(ALRV) was relatively high. Calcium in the high calcium type stone coal is greatly superfl uous relative to vanadium, hence, the calcium reacts......
-roasted vanadium slag by ammonium carbonate [J]. Hydrometallurgy, 2016, 160: 18–25. DOI: 10.1016/ j.hydromet.2015.11.014. [15] LI Xin-sheng, XIE Bing. Extraction of vanadium from high calcium vanadium slag... J. Cent. South Univ. (2018) 25: 2349-2359 DOI: https://doi.org/10.1007/s11771-018-3919-0 Safe utilization of chromium-bearing vanadate residue by recovery of vanadium and chromium based on calcium......
Extraction of vanadium from vanadium slag by high pressure oxidative acid leachingGuo-quan Zhang,Ting-an Zhang,Guo-zhi Lü,Ying Zhang,Yan Liu,Zhuo-lin LiuKey Laboratory of Ecological Utilization... friendly manner,this study focuses on the process of leaching vanadium from vanadium slag by high pressure oxidative acid leaching.Characterizations of the raw slag,mineralogy transformation......
-oxidation and H2O2 in alkaline medium[J]. Energy & Fuels, 2016, 30: 7802–7807. [6] LI Xin-sheng, XIE Bing. Extraction of vanadium from high calcium vanadium slag using direct roasting and soda... vanadium was oxidized to high-valent vanadium. Thus, MnO2 could combine with the protons (H+) to damage the slag structure and increase the leaching efficiency of vanadium and chromium [21]. Figure 3......
Oxidization mechanism in CaO-FeOx-SiO2 slag with high iron content ZHANG Lin-nan(张林楠), ZHANG Li(张 力), WANG Ming-yu(王明玉), SUI Zhi-tong(隋智通) (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: Oxidization mechanism in CaO-FeOx-SiO2 slag with high iron content was investigated by blowing oxygen into molten slag so as to oxidize Fe......
,and cementation mechanisms,were carried out to make good use of yellow phosphorus slag as well as tackle with environment problems,safety problems,geological hazards,and high-cost issues during mining in Kaiyang... can eliminate the high residual phosphorus to improve the initial strength of backfilling body.The recommended proportions (mass ratio) are 1:1 (yellow phosphorus slag:phosphorous gypsum),1:4:10......
J. Cent. South Univ. Technol. (2009) 16: 0588-0593 DOI: 10.1007/s11771-009-0098-z Microwave absorbing properties of high titanium slag ZHANG Li-bo(张利波), CHEN Guo(陈菓), PENG Jin-hui(彭金辉), CHEN... titanium slag were investigated by using microwave cavity perturbation technique. High titanium slag containing more than 90% TiO2 was prepared by carbothermal reduction of ilmenite. The temperature rise......
South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: To investigate the hydrogen permeability of calcium fluoride used for electroslag remelting (ESR) process, "Gas-slag- metal" osmosis process under argon atmosphere saturated with water vapor at 318 K was used to study the hydrogen permeability of slag containing calcium fluoride. The results indicate that the conventional......
, respectively. The results of the formal experiments suggest that making basic slag can extract vanadium and remove phosphorus simultaneously. The vanadium extraction rate (ηV) and phosphorus removal rate (ηP) both increase with an increase in the basicity of the original slag materials and the Fe2O3 contents. The vanadium distribution ratio is about an order of magnitude greater than the phosphorus......
