共搜索到15101条信息，每页显示10条信息，共1511页。用时：0小时0分0秒443毫秒
Preparation of high-purity bismuth by sulphur deleadization in vacuum distillation XIONG Li-zhi(熊利芝)1, HE Ze-qiang(何则强)1, LIU Wen-ping(刘文萍)1, MA Cheng-jin(麻成金)1, DAI Yong-nian(戴永年)2 (1. College..., China) Abstract: The feasibility of separation of impurities in refined bismuth and sulphur deleadization with vacuum distillation was studied theoretically. Experimental studies on sulphur......
Trans. Nonferrous Met. Soc. China 24(2014) 3001-3007 Preparation of bismuth subcarbonate by liquid ball-milling transformation method from bismuth oxide Long-gang YE, Ye JIANG, Chao-bo TANG, Yong... the problems of environment pollution and high cost in traditional process of bismuth subcarbonate preparation, a new process using ball-milling transformation method from NH4HCO3 and Bi2O3 was proposed......
Nanometer bismuth oxide produced by resistance heating vapor oxidation HU Han-xiang(胡汉祥)1,2, QIU Ke-qiang(丘克强)1 1. School of Chemistry and Chemical Engineering, Central South University, Changsha...: Bismuth oxide has wide applications in superconductive material, photoelectric material, electronic ceramic, electrolyte, and catalysts. To produce ultrafine bismuth oxide powders, some costly......
Pressure leaching of bismuth sulfide concentrate containing molybdenum and tungsten in alkaline solutionZHANG Du-chao(张杜超), YANG Tian-zu(杨天足), LIU Wei-feng(刘伟锋), WU Jiang-hua(吴江华)(School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China)Abstract:The leaching results of bismuth sulfide concentrate containing molybdenum and tungsten in air-H2O2-NaOH system......
号:TF8 文献标志码:A 文章编号:1672-7207(2015)02-0404-06 Preparation of bismuth subnitrate..., China) Abstract: In order to solve the problem in traditional process of preparation of bismuth which produced toxic NO2 and ammonia-nitrogen waste water, a new process for preparation of bismuth......
......
J. Cent. South Univ. (2016) 23: 1326-1331 DOI: 10.1007/s11771-016-3183-0 Reduction smelting on bismuth oxide residue in FeO-SiO 2-CaO ternary slag system ZHANG Du-chao(张杜超), ZHANG Xin-wang(张新望... 410083, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: Reduction smelting of the bismuth oxide residue from pressure leaching of bismuth sulfide was investigated......
含量降低到0.22%,Bi的纯度富集到99.78%.另外,Zn含量为1.02%~4.66%的铋熔体经过真空处理,Bi的纯度达到99.7%以上.铋熔体可通过真空方法有效除Zn,金属回收率高,并且对环境无污染,得到的Zn还可返回粗铋加锌提银工段再使用.关键词:真空蒸馏；脱锌；铋熔体Vacuum refining bismuth melts to remove zincXU Yan, QIU Ke...:The thermodynamics of vacuum refining bismuth melts to remove zinc was analyzed and calculated. The effects of temperature, refining time and vacuum degree on vacuum separation efficiency of zinc were also......
Article ID: 1003-6326(2005)02-0404-06 Growth of bismuth telluride thin film on Pt by electrochemical atomic layer epitaxy ZHU Wen(朱 文), YANG Jun-you(杨君友), GAO Xian-hui(郜鲜辉), HOU Jie(侯 杰... of cycles, as it is consistent with a layer by layer growth mode. Key words: thermoelectric material; ECALE; UPD; bismuth telluride; thin film CLC number: TN377 Document code: A
......
