共搜索到3736条信息,每页显示10条信息,共374页。用时:0小时0分0秒421毫秒
">The influence of roasting on the leaching rate and valence of vanadium was evaluated during vanadium extraction from stone coal.Vanadium in stone coal is hard to be leached and the leaching rate...Effects of the mineral phase and valence of vanadium on vanadium extraction from stone coalYang-jia Hu 1),Yi-min Zhang 1,2),Shen-xu Bao 1,2),and Tao Liu 1,2) 1) College of Resources and Environmental......
, 1.5 mlg-1 , 15 vol % H2SO4 , and 5 % calcium fluoride (mass ratio of CaF2 to stone coal). The concentrations of hydrogen ion were adjusted from initial 1.82 and 4.79 mol L -1 to the pH of 1.80 ± 0.05...Mechanisms of aid-leaching reagent calcium fluoride in the extracting vanadium processes from stone coalFei Wang,Yi-Min Zhang,Jing Huang,Tao Liu,Yi Wang,Xiao Yang,Jie ZhaoCollege of Resources......
Trans. Nonferrous Met. Soc. China 25(2015) 1271-1278 Soil vanadium pollution and microbial response characteristics from stone coal smelting district Xi-yuan XIAO, Miao YANG, Zhao-hui GUO, Zhi-chao... Abstract: A field investigation was performed to study the content, speciation and mobility of vanadium, as well as microbial response in soil from a stone coal smelting district in Hunan province......
Leaching behavior of V,Pb,Cd,Cr,and As from stone coal waste rock with different particle sizesYing-bo Dong1,2,Yue Liu1,Hai Lin1,21. School of Energy and Environmental Engineering,University... of heavy metals(V,Pb,Cd,Cr,and As) from stone coal waste rocks with various particle sizes using dynamic leaching experiments.The results show that the dissolved concentrations of V and As initially......
:电渗析;高盐废水;钒;石煤 中图分类号:X703.1 文献标志码:A Electrodialytic treatment of wastewater produced in vanadium extraction from stone coal BAO Shen-xu1, ZHANG Yi-min1, 2, LIU Tao1, CHEN..., Wuhan University of Technology, Wuhan 430070, China) Abstract: The acid wastewater produced in vanadium extraction from stone coal was desalinated by electrolysis. The results show that, at different......
Vanadium Resource摘 要:Experiments comparing microwave blank roasting and conventional blank roasting for typical vanadium-bearing stone coal from Hubei...Comparison of the mechanisms of microwave roasting and conventional roasting and of their effects on vanadium extraction from stone coalYi-zhong Yuan1,2,Yi-min Zhang1,2,Tao Liu1,2,Tie-jun Chen1,21......
[J]. Journal-South African Institute of Mining and Metallurgy, 2012, 113(7): 1-8. [13] HE Min, WANG Pei-pei, JIANG Hui-hui. Recognition of coal and stone based on SVM and texture [J]. Computer...J. Cent. South Univ. (2017) 24: 1252-1262 DOI: 10.1007/s11771-017-3529-2 Particle size distribution of coal and gangue after impact-crush separation YANG Dao-long(杨道龙)1, LI Jian-ping(李建平)1, DU Chang......
石煤钒矿焙砂加压碱浸试验肖超1,肖连生1,丁文涛1(1.湖南省长沙市中南大学冶金科学与工程学院)摘 要:针对目前采用"焙烧-碱浸提钒"工艺从石煤钒矿中提取钒存在碱消耗大,浸出时间长和浸出液杂质含量高等问题,研究采用高压碱浸法浸出石煤钒矿焙砂.试验考察碱用量,液固比,浸出时间,循环浸出等因素对钒浸出率的影响.结果表明,在NaOH用量为矿重的3.5%,液固比为1.5∶1,180℃下,2h浸出,钒的浸出率达到86%,浸出液中钒硅质量浓度比为0.65,浸出液pH值约为12.1.高压碱性浸出具有钒浸出率高,杂质浸出率低等......
Bioleaching of vanadium from barren stone coal and its effect on the transition of vanadium speciation and mineral phaseXin Wang1,2,Hai Lin3,2,Ying-bo Dong3,2,Gan-yu Li1,21. School of Civil and Resource Engineering, University of Science and Technology Beijing2. Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants3. School of Energy and Environmental Engineering......
Trans. Nonferrous Met. Soc. China 24(2014) 1145-1151 Flotation recovery of vanadium from low-grade stone coal Li WANG, Wei SUN, Run-qing LIU, Xiao-chuan GU School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China Received 20 March 2013; accepted 22 September 2013 Abstract: Pre-concentration of vanadium from low-grade stone coal by the method of desliming......