共搜索到1457条信息,每页显示10条信息,共146页。用时:0小时0分0秒395毫秒
......
......
Removal of vanadium from ammonium molybdate solution by ion exchange LI Qing-gang(李青刚)1, 2, ZHANG Qi-xiu(张启修)2, ZENG Li(曾 理)2, XIAO Lian-sheng(肖连生)1, 2, YANG Ya-nan(杨亚男)2 1. State Key Laboratory... kinds of chelate resins were used to investigate the adsorbent capability of V(Ⅴ) in ammonium molybdate solution with static method. The test results show that DDAS, CUW and CW-2 resins can easily......
......
......
loss rate is below 5%. In the ammonium molybdate, the V removal rate can reach 96% under the conditions of n(Fe)/n(V)=10, pH 8.6-9.0 and reaction time 60min, and there is almost no loss of Mo... and molybdenum smelting. Key words: sodium tungstate system; sodium molybdate system; ammonium molybdate system; efficient V removal; ferric salt 近年来,随着高品位优质钨钼矿物原料的减少[1],杂质含量较高的低品位矿的利用不断增加,使得杂质元素的分离问题显得日益重要,而......
properties, resulting from the lanthanide contraction [1]. Additionally, according to the industrial requirement, WO3 impurity in final ammonium molybdate product should be restricted to below 150×10-6... molybdate solutions without adding any reagents or even adjusting pH values, which was further confirmed through the column tests on the mock industrial ammonium molybdate solutions with W removal......
Preparation of single-phase ammonium dimolybdate by combination processZHANG Bao, XIA Xiaomei, and LI Qian School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China摘 要:A novel method for the preparation of single-phase ammonium dimolybdate with industrial ammonium molybdate was studied. Various in- fluential......
of vanadium during ammonium molybdate production using ion exchange [J]. Hydrometallurgy, 2010, 104: 317-321. [22] RENGARAJ S, JOO Cheol Kyun, KIM Younghun, YI Jongheop. Kinetics of removal of chromium from.... [27] LI Qing-gang, ZHANG Qi-xiu, ZENG Li, XIAO Lian-sheng, YANG Ya-nan. Removal of vanadium from ammonium molybdate solution by ion exchange [J]. Transactions of Nonferrous Metals Society of China......
Synergistic Corrosion Inhibition Effect of Molybdate and Phosphate Ions for Anodic Oxidation Film Formed on 2024 Aluminum Alloy王文博1,DONG Peng1,2,3,WANG Haiyun2,程杰2,刘胜利21. College of Electronic... of aluminum alloys, anodic oxidation technique was used to generate the oxide film. We investigated the influences of two inorganic corrosion inhibitors(ammonium dihydrogen phosphate and sodium......