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(OH)2(s)的条件溶度积最小.研究结果可为中和水解法去除废水中镉等技术提供理论依据. 关键词:Cd2+-H2O系；含镉废水；配位离子；pc-pH图；条件溶度积；配位离子分率 中图分类号:O 641.4 文献标识码:A Equilibrium of hydroxyl complex ions in Cd2+-H2O system CHAI...) Abstract: The diagrams for the concentration of complex ions pc-pH, the ratio of cadmium hydroxy complex ions αn-pH and the conditional solubility product of Cd(OH)2 to pH value in Cd2+-H2O system were......
高铜载金炭脱铜试验研究陈淑萍1,伍赠玲1(1.福建省龙岩市上杭县紫金矿冶设计研究院)摘 要:针对载金炭中铜品位高对金的吸附,解吸,电积和冶炼存在较大影响问题,进行了高铜载金炭氰化脱铜试验研究,结果表明:载金炭中铜的脱除率达到91%以上,金基本不被浸出;脱铜后载金炭经高温高压无氰解吸,金的解吸率明显得到提高.关键词:高铜载金炭； 脱铜； 氰化钠； 酸化回收......
of gold dissolution selectively in alkaline thiourea solutions based on complex theory ZHENG Su, WANG Yun-yan, CHAI Li-yuan (School of Metallurgical Science and Engineering,Central South University, Changsha 410083, China) Abstract: Electrochemical behaviors of gold and the co-existing elements, such as silver, copper, nickel and iron dissolving in alkaline thiourea solution with high......
and structure characterization of N,N’-diethoxycarbonyl-N’’,N’ ’’-(1,6- hexylidene) dithiourea and its coordination with metal ions YUAN Lu, ZHONG Hong, LIU Guang-yi, GUO Yan, CHEN Mao, LI Li-qing (Key... with three ions separately, and has a best selectivity to Fe3+. Compared with the IR spectral data of compound, the structure of the precipitate is of annular chelate. Key words: diethoxycarbonyl dithiourea......
leaching in acidic ferric chloride solutions [J]. Trans Ind Inst Met, 1999, 52(2/3): 73-79. [6] GUY S, BROADBENT C P, LAWSON G J, JACKSON J D J. Cupric chloride leaching of a complex copper/zinc/lead... Leaching of complex sulphide concentrate in acidic cupric chloride solutions M. TCHOUMOU1, M. ROYNETTE2 1. Faculty of Science, Marien Ngouabi University, Brazzaville, Congo; 2. Laboratory......
D261大孔树脂吸附氰化物的性能及机理研究何敏1,朱国才2,兰新哲3(1.湖北省武汉市武汉科技大学理学院2.清华大学核能技术研究院,北京1022013.西安建筑科技大学 冶金工程学院)摘 要:研究了D261大孔树脂对氰化物的吸附性能及机理,考察了酸度,温度,溶液中氰化物质量浓度,时间及树脂用量对氰化物吸附的影响.试验结果表明,D261大孔树脂能有效地吸附简单氰化物和金,银,铜,锌,铁的氰络合物.热力学试验表明,吸附等温线符合Freundlich方程,吸附过程属于优惠吸附.动力学研究表明,吸附在室温下是瞬时反应,......
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Trans. Nonferrous Met. Soc. China 22(2012) s820-s824 Microstructure of fast tool servo machining on copper alloy Hong LU1, Soo-chang CHOI2, Sang-min LEE1, Deug-woo LEE3 1. Department of Nano Fusion... performance of a piezoelectric-assisted FTS on copper alloy was evaluated. The results indicate that the quality of the microstructure depends mainly on two important factors: the cutting speed......
Purification mechanism of copper electrolyte by As(Ⅲ) XIAO Fa-xin(肖发新)1, 2, ZHENG Ya-jie(郑雅杰)1, WANG Yong(王 勇)1, JIAN Hong-sheng(简洪生)1, HUANG Xing-guan(黄兴远)2, MA Yu-tian(马玉天)1 1. School...)-O-Sb(OH)3)3]-O-Sb(OH)2·xH2O. The structure analysis shows that the copper electrolyte can be purified by As(Ⅲ) because the antimony arsantimonate precipitate forms. Key words: arsenic; purification......
J. Cent. South Univ. (2012) 19: 1311-1316 DOI: 10.1007/s11771-012-1143-x Generic reconstruction technology based on RST for multivariate time series of complex process industries KONG Ling... to effectively analyse the multivariate time series data of complex process, a generic reconstruction technology based on reduction theory of rough sets was proposed. Firstly, the phase space of multivariate......
