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Quantum-mechanical study of effect of lattice defects on surface properties and copper activation of sphalerite surface CHEN Jian-hua(陈建华)1, CHEN Ye(陈 晔)2, LI Yu-qiong(李玉琼)2 1. College... on the copper activation of sphalerite were investigated. Calculated results indicate that both Fe and Mn impurities narrow the band gap of sphalerite surface and lead to the Fermi level shifting......
Inhibition behavior of some new mixed additives upon copper electrowinning YU Run-lan(余润兰)1, 2, LIU Qing-ming(刘清明)3, QIU Guan-zhou(邱冠周)1, 2, FANG Zheng(方 正)3 , TAN Jian-xi(谭建锡)1, 2, YANG Peng(杨...: As thiourea and sulfur-containing mixed additives contaminate cathodic copper, inhibition behavior of some new mixed additives such as gelatin+hexadecylpyridinium bromide (HDPBr), gelatin+polyethylene......
Estimation of SO2 emission factors from copper smelting industry in Yunnan Province, ChinaZHANG Yan(张艳), Tang Xiao-long(唐晓龙), YI Hong-hong(易红宏), MA Jie-yun(马洁云)(College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China)Abstract:Copper smelting is a significant source of SO2 emission. It is important to quantify SO2 emissions from......
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收稿日期:1998-10-14 基金:国家八五科技攻关项目! 85- 10 5- 0 3- 0 1- 0 1; Phases of residue in distillation of BiCl3-HCl-H2O system Abstract: The residue phase in the process of distillation of BiCl 3 HCl H 2O system were studied in detail. Experimental results showed that the residue phase were distinctive at different temperature, namely BiCl 3 and BiCl 3·xHCl......
Synthesis, structure, DNA binding and cleavage activity of a new copper(II) complex of bispyridylpyrrolideMIN Rui(闵睿), HU Xiao-hui(胡晓惠), YI Xiao-yi(易小艺), ZHANG Shou-chun(张寿春) (School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China)Abstract:A copper-bispyridylpyrrolide complex [Cu(PDPH)Cl] (PDPH = 2,5-bis(2′-pyridyl)pyrrole) was synthesized and characterized......
pressure oxidation leaching, arsenic and selenium were dissolved into the solution, while copper, tellurium and other metals were oxidized and remained in the alkaline leaching residue. Then copper... of arsenic and antimony can reach over 99.0%. And when the alkaline leaching residue was leached in sulfuric acid solution, the leaching ratios of copper and tellurium can come up to 95.64% and 77.38......
DYNAMIC COMPACTION OF PURE COPPER POWDER USING PULSED MAGNETIC FORCE H.P. Yu1,C. F. Li1 (1.National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin... words:magnetic pulse compaction; copper powder; compaction density; electromagnetic forming; [全文内容正在添加中] ......
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