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the negative influence of antimony on the cyanide process, the method of sodium sulfide leaching was proposed to selective remove antimony from refractory gold ores. The key factors influencing..., indicating that less FeS2 first dissolves during leaching and then precipitates from the solution. Key words: refractory gold ores; leach; antimony; sodium sulfide 黄金是稀缺的战略性金属,广泛应用于黄金饰品,货币储备和高科技产业.据US......
Trans. Nonferrous Met. Soc. China 28(2018) 1045-1052 Preparation of sodium manganate from low-grade pyrolusite by alkaline predesilication-fluidized roasting technique Xiang-yi DENG1, Ya-li FENG1... by the chemical surface reaction with activation energy Ea of 53.31 kJ/mol. The fluidized roasting conditions for preparation of sodium manganate were optimized by the orthogonal experiments using the desiliconized......
J. Cent. South Univ. Technol. (2008) 15: 198-203 DOI: 10.1007/s11771-008-0038-3 Simulation of thermal and sodium expansion stress in aluminum reduction cells LI Jie(李 劼), WU Yu-yun(伍玉云), LAI... were built up for analysis of stress field in the lining of aluminum electrolysis cells. Distribution of sodium concentration in cathode carbon blocks was calculated by one FE model of a cathode......
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J. Cent. South Univ. (2020) 27: 772-779 DOI: https://doi.org/10.1007/s11771-020-4330-1 Effect of oxalate on seed precipitation of gibbsite from sodium aluminate solution YU Hai-yan(于海燕)1, 2, ZHANG... performance and kinetics of gibbsite from sodium aluminate solution with different sodium oxalate concentrations as well as the corresponding influence mechanism of oxalate during the seed precipitation......
Solid-phase extraction gold from alkaline cyanide solution with quaternary ammonium surfactantRun-Fang Xie1,Qiu-Fen Hu2,Guang-Yu Yang2,Jing Chen2,Yong-He Zhao1,Zhen Li11. School of Forensic Medicine... column is not easily damaged and it can be repeatedly used.The new method can be used as the extraction process of gold from alkaline cyanide solution as well.Besides,the paper also puts forward a new......
J. Cent. South Univ. Technol. (2010) 17: 924-929 DOI: 10.1007/s11771-010-0578-1 Wettability and surfactivity of sodium phosphate surfactants in strong alkali solutions CHEN Sheng-hui(陈胜慧)1, 2..., surfactivity and the correlation between wettability and surfactivity of sodium diethylhexylphosphate, sodium diethylhexyl polyoxyethylene phosphate and their complex in NaOH solutions were studied......
Synthesis, Crystal Structure and Magnetic Behaviour of Three Dimensional Iron-Cerium Cyanide Bridged Bimetallic Assembly 向华1,计亮年2,毛宗万2,鲁统部2 (1.欧阳凤强;2.Department of Chemistry, Zhongshan University... by the nine-coordinated CeN6(H2O)3 groups and octahedral FeC6 groups through the cyanide linkages. Magnetic susceptibility measurements in the temperature range of 5.1~300 K show an antiferromagnetic......
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CRYSTALLIZATION OF SODIUM TUNGSTEN BRONZE USING ELECTROLYSIS WITHREVERSE CURRENT＋Huang Huan1; Yang Songqing1; Tang Shu2(1. Institute of Metallurgical Physicochemistry and Materials, Central South University of Technology, Changsha, 410083, China; 2. Experimental Center, Hunan Normal University, Changsha, 410006, China)Abstract:Utilizing the technique of electrolysis with reverse current,sodium......
