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Leaching of lead from zinc leach residue in acidic calcium chloride aqueous solutionLe Wang1,Wen-ning Mu2,Hong-tao Shen2,Shao-ming Liu1,Yu-chun Zhai11. School of Materials and Metallurgy... and occupational hazards of lead-bearing zinc plant residue was studied to achieve a higher recovery of lead via a cost-effective and environmentally friendly process. This paper describes an optimization......
An Investigation of Passivatior of Cerium for Red Copper CHEN Yi-sheng1,XU fang1 (1.School of Material and Chemical Engineering , Jiangxi University of Science and Technology, P. R. China) 摘要:The paperis studied and probed into the cerium application in the passivators of red copper. Through the experimentation of single factor we knoew that ithas remarkable quality influence among red copper......
Forming process of cross-connected finned micro-grooves in copper strips CHI Yong(池 勇), TANG Yong(汤 勇), CHEN Jin-chang(陈锦昌), DENG Xue-xiong(邓学雄), LIU Lin(刘 林), WAN Zhen-ping(万珍平), LIU Xiao-qing... finned micro-grooves structure was formed on the surface of copper strips with thickness of 0.4 mm. The structure was fabricated by making ‘V’-grooves in copper strips and perpendicular ‘V’-grooves......
Recrystallized microstructural evolution of UFG copper prepared by asymmetrical accumulative rolling-bonding process WANG Jun-li(王军丽), SHI Qing-nan(史庆南), QIAN Tian-cai(钱天才), WANG...; Abstract: Copper sheet......
Effects of thermal cycling on thermal expansion behaviors of b-LiAlSiO4 reinforced copper matrix compositesXUE Zong-wei1, WANG Li-dong1, YANG Cong-tao2, LIU Zhe1, FEI Wei-dong1, 3(1. School... particles in the composite. Meanwhile, the relaxation of TMS during thermal cycling causes the twins deformation of matrix in the Euc/Cu composites.Key words:copper matrix composite; thermal expansion......
Effect of added cobalt ion on copper electrowinning from sulfate bath using doped polyaniline and Pb-Ag anodes HUANG Hui(黄 惠)1, ZHOU Ji-yu(周继禹)2, GUO Zhong-cheng(郭忠诚)1 1. Faculty... December 2009 ____________________________________________________________________________________________ Abstract: Effect of added Co2+(aq) on copper electrowinning was studied using doped......
activation energy was 38.01 kJ/mol. Key words: chromite ore; copper oxide; leaching; catalytic oxidation 1 Introduction Chromate production from the chromite ore is an important metallurgical process... reaction conditions [6,8]. Further, only 0.5 t of chromium ore processing residue (COPR) will be generated per ton of chromate, whereas in the traditional alkali roasting method, the COPR is 3 t per......
铜渣浸出毒性的鉴别和处置方式唐谱1,李秋菊1,洪新1(1.上海市上海大学上海市钢铁冶金重点实验室)摘 要:铜渣中含有大量有价金属,很多有价金属在酸雨淋溶下会浸入水中,从而对环境造成威胁.本文主要是分析了铜渣的矿相,利用硫酸硝酸法对铜渣进行了浸出毒性的试验研究,并对浸出液毒性进行了评价,证明铜渣中铜含量超标,为一般工业废弃物.并确定相应的安全处置方式.关键词:铜渣； 浸出毒性； 处置方式......
to roast fully mixed copper anode slime and soda. The roasted product then went through alkaline-leaching to remove selenium. The alkaline-leaching residue was dried in a drying cabinet with forced... for the subsequent recovery of selenium and the recycling of the alkaline solution. The majority of tellurium and copper were leached from alkaline-leaching residue while little other elements were leached during......
Thermal expansion of MWCNT-reinforced copper composite XU Long-shan(许龙山), CHEN Xiao-hua(陈小华), PAN Wei-ying(潘伟英), LI Wen-hua(李文华), YANG Zhi(杨 植), PU Yu-xing(蒲玉兴), YI Guo-jun (易国军) , YI Bin... carbon nanotube (MWCNT)-reinforced copper composite was fabricated by a novel method, which involves solution phase synthesis of MWCNT-implanted cuprous oxide composite spheres, formation of MWCNT/ copper......
