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Trans. Nonferrous Met. Soc. China 25(2015) 3767-3773 Recovery of vanadium and carbon from low-grade stone coal by flotation Li WANG, Wei SUN, Qing-peng ZHANG School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China Received 1 December 2014; accepted 20 March 2015 Abstract: Flotation technology of high-carbon stone coal bearing vanadium was investigated......
stone coal ZHANG Xiao-yun1, 2, QIN Wen-qing1, TIAN Xue-da2, CHEN Yan-bo2, GU Yu2, XI Xiao-guang2 (1. School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China... coal, the microwave roasting-acidic leaching technique for extraction of vanadium from stone coal was developed, and the effects of H2SO4 dosage and leaching time on vanadium extraction were......
; 文献标志码:A Vanadium extraction technology from stone coal by oxidizing roasting... of the addition amount of NaOH and Na2CO3 on the leaching rate of vanadium from roasted stone coal was studied. With the optimal condition of leaching agent, the effects of leaching time, temperature and liquid......
含钒石煤发电炉渣浸出提钒 刘巍1,冯林永1,范艳青1,汪胜东1,张登高1,蒋伟1,蒋训雄1 (1.北京矿冶研究总院,北京,100044) 摘要:研究从石煤发电产出的炉渣中提取钒的浸出过程.结果表明,直接硫酸浸出最佳条件为炉渣50g,浸出温度90℃,浸出时间6h,浸出液固比2:1,3mol/L的硫酸溶液,搅拌转速400r/min,磨矿时间90min.最佳条件下钒的浸出率达到86%. 关键词:冶金技术; 钒; 浸出; 石煤发电炉渣; metallurgical technology; vanadium; leching; slag from stone coal power plant; [全文内容正在添加中] ......
J. Cent. South Univ. Technol. (2011) 18: 2192-2200 DOI: 10.1007/s11771-011-0962-5 Degradation behavior of aggregate skeleton in stone matrix asphalt mixture MA Tao(马涛), WANG Zhen(王真), ZHAO Yong-li(赵永... skeleton in stone matrix asphalt mixture was investigated based on theoretical analysis, laboratory test and field materials evaluation. A stress-transfer model was established to provide the fundamental......
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; 文献标志码:A 文章编号:1672-7207(2011)10-2917-05 Extracting vanadium from high-carbon stone coal by oxidizing..., China; 2. National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing 100080, China) Abstract: Based on refractory high-carbon stone coal......
Trans. Nonferrous Met. Soc. China 27(2017) 197-203 Vanadium recovery from stone coal through roasting and flotation Chun LIU1, Yi-min ZHANG1,2,3, Shen-xu BAO1,3 1. College of Resources... from stone coal by roasting-flotation was investigated based on the mineralogy. The process comprised four key steps: decarburization, preferential grinding, desliming and flotation......
%；V2O5产品纯度高于99.5%. 关键词:石煤；钒；活化酸浸；活化剂；浸出率 中图分类号:TF841.3 文献标志码:A Process of vanadium extraction from stone coal vanadium ore by activated sulfuric acid leaching at atmospheric..., China) Abstract: The method of activated sulfuric acid leaching of stone coal vanadium ore was studied. The effects of the ore particle sizes, sulfuric acid concentration, amount of active agent......
EFFECT OF STONE POWDER ON STONE CHIPPINGS CONCRETE周明凯,彭少明,徐健,朱承华摘 要:<正> In this paper,the effect and mechanism of calcareous stone powder with size less than 0. 074mm are investigated in stone chippings concrete. The results show that the stone powder can participate in hydration reaction and acts as crystal nucleus in hydration process, namely......
