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J. Cent. South Univ. Technol. (2011) 18: 1063-1067 DOI: 10.1007/s11771-011-0804-5 Hydrogen permeability of slags containing calcium fluoride DONG Yan-wu(董艳伍)1, 2, JIANG Zhou-hua(姜周华)1, LIANG Lian... 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......
Viscosity estimation for slags containing calcium fluorideQifeng Shu and Jiayun Zhang Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正>Based on recently published experimental data, the Riboud model was modified for viscosity estimation of the slags containing calcium......
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 and Environmental Engineering, Wuhan University of Science and Technology摘 要:The mechanisms of aid-leaching reagent calcium fluoride in the extracting vanadium......
萤石中二氧化硅和氟化钙的系统分析宋新艳1(1.山东省济南市济钢集团有限公司技术监督处 )摘 要:萤石试样以过氧化钠为熔剂,于铁坩埚内进行快速熔融,熔块以含硼酸的热水溶液浸取,盐酸溶解试样,制成母液.以硅钼蓝分光光度法测定二氧化硅含量,以EDTA滴定法测定总钙量,单独测定CaCO3的量用以校正总钙量从而得到CaF2含量.以硼酸消除氟的干扰,以三乙醇胺掩蔽Fe3+,Al3+,并以同品种的标准样品绘作校准曲线和采用标准样品换算的方法对数据进行处理.本方法用于萤石标准样品中SiO2,CaF2的测定,相对标准偏差分别......
calcium fluoride[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(4): 1019-1026. DOI: 10.11817/j.ysxb.1004.0609.2021-36513 玻璃陶瓷中晶相的矿物组成与玻璃相的化学组成及它们的数量决定了玻璃陶瓷的性质,故玻璃陶瓷兼具玻璃与陶瓷的优点:既具有较低的热膨胀系数,较高的机械强度,又具有...盐学报, 2012, 40(12): 1703-1707. SI Wei, DING Chao, ZHANG Wei-yi, et al. Effect of calcium fluoride on preparation of the glass-ceramics by reactive crystallization[J]. Journal of The Chinese Ceramic......
, the better flotation indexes of phosphate rock can be obtained. Fluoride ion reacts with the carbonate to form calcium fluoride on the mineral surface. The reaction is affected by the factors... in saturated solution and air were drawn. Based on the analysis of the diagrams, it is believed that, at higher fluorine concentration and alkaline conditions, the formation of calcium fluoride......
Properties of fluoride film and its effect on electroless nickel deposition on magnesium alloys LIU Xin-kuan(刘新宽)1, LIU Zi-li(刘子利)2, LIU Ping(刘 平)1, XIANG Yang-hui(向阳辉)3, HU Wen-bin(胡文斌)3, DING... 2009; accepted 2 September 2010 Abstract: The physical characteristics and microstructure of the fluoride film formed during activation were investigated using SEM, XPS and SAM, and its......
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Kinetics and Mechanism of Adsorption of Phosphate on Fluorine-containing Calcium Silicate朱新华,ZHANG Zhao,沈俊College of Chemical Engineering,Sichuan University摘 要:The nanowires-reticulated calcium silicate with a specific surface area more than 100 m2/g was prepared by a hydrothermalprocess using hydrated lime(Ca(OH)2,HL)and silica containing soluble......
Infrared-to-Visible Frequency up-Conversion in Trivalent Erbium Ions Doped Fluoride Glasses (ZnF2-AlF3-PbF2-LiF) 刘晃清1,黄世华1,赵丹1,吴长峰1,秦伟平1,秦冠仕1 (1.Changchun Institute of Optics, Fine Mechanics and Physics, Key Laboratory of Excited States Processes, Chinese Academy of Sciences, Changchun 130022, China) Abstract:High-efficiency frequency up-conversion in trivalent erbium ion doped new fluoride......
