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J. Cent. South Univ. (2016) 23: 1052-1057 DOI: 10.1007/s11771-016-0354-y Tungsten removal from molybdate solutions using chelating ion-exchange resin: Equilibrium adsorption isotherm and kinetics... with quaternary ammonium salt [J]. Rare Metals and Cemented Carbides, 2012, 40(1): 1-4. (in Chinese) [9] NING Peng-ge, CAO Hong-bin, ZHANG Yi. Selective extraction and deep removal of tungsten from sodium......
Influence of earth gravity on reaction engineering of tubular reactor for high concentration tungsten ion-exchange ZHAO Zhong-wei(赵中伟), XIAO Lu-ping(肖露萍), GUO Chi-hao(郭持皓), CHEN Xing-yu(陈星宇... beneficial compared with downflow-feeding mode, since the flow pattern of the fluid in the reactor is closer to plug flow. The result of dynamic experiment conducted in ion-exchange of tungsten......
二硫化钨中氧量的测定 鲍翠娥1 (1.湖南株洲硬质合金厂分析测试中心,株洲,412000) 摘要:研究了脉冲库仑法测定二硫化钨中氧含量的测定条件,建立了分析方法.方法能准确,快速地测定出二硫化钨中氧含量. 关键词:二硫化钨; 氧; 脉冲库仑法; 除硫装置; tungsten disulphide; oxgyen; pulse coulobmeter; sulplur removal equipment; [全文内容正在添加中] ......
; separation of molybdenum and tungsten; molybdenum removal 钨,钼属于稀有高熔点金属,是重要的战略金属.钨,钼及其化合物以其独特的物理,化学性质,在国民经济和国防军工诸多领域内具有难以替代的作用[1-2].在元素周期表中,钼和钨同属第ⅥB副族元素,并分别处于第5和第6周期."镧系收缩"现象使钨与钼具有相近的离子半径,并表现出极为相似的物理化学性质,是典型的相...钨酸盐溶液中的除钼效果 Fig. 6 Effects of metal sulfides for Mo removal from tungsten solution 选择性沉淀法除了具有高效地去除Mo,As,Sn和Sb等杂质的效果外,还对钨矿原料和浸出料液具有很好的适应性[43].通过选用不同品位钨矿(见表3),不同处理工艺所得的料液为原料,采用选择性沉淀法处理后其除钼都基本维持在99......
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INDUCTION PLASMA REACTIVE DEPOSITION OF TUNGSTENCARBIDE FROM TUNGSTEN METAL POWDER M.I.Boulos1,X.L.Jiang2 (1.Department of Chemical Engineering, University of Sherbrooke, Sherbrooke, J1K 2R1... the tungsten powder and methane in the induction plasma, and the secondary carburization of the deposit on substrate at high temperature. Optical microscopy and scanning electron microscopy were used to examine......
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