共搜索到7128条信息，每页显示10条信息，共713页。用时：0小时0分0秒563毫秒
IMPROVING THE MECHANICAL PROPERTIES OF COPPER ALLOYS BY THERMO-MECHANICAL PROCESSING L.P.Karjalainen1,M.C.Somani1 (1.Department of Mechanical Engineering,University of Oulu,90014 Oulu,Finland) Abstract:Systematic physical simulation of thermo-mechanical processing routes has been applied on a Gleeble 1500 simulator to four copper alloys(mass %)Cu-0.57Co-0.32Si,Cu-0.55Cr-0.065P......
Geochemistry of Rare Earth Elements of Anqing Copper Deposit in Anhui Province 岳书仓1,周涛发1,刘晓东1,袁峰1 (1.Department of Resources and Environmental Science, Hefei University of Technology, Hefei 230009, China) Abstract:The geochemical features of REE were studied by comparing the copper ore with the skarn, the diorite and the stratum, to trace the source of metallogenic materials in Anqing copper......
J. Cent. South Univ. Technol. (2008) 15: 669-673 DOI: 10.1007/s11771-008-0124-6 Anode oxidation of HCHO in THPED-containing electroless copper plating solution ZHENG Ya-jie(郑雅杰)1, XIAO Fa-xin(肖...; Abstract: The electrochemical mechanism of anode oxidation of HCHO in electroless copper plating solution with N, N, N′, N′- tetrakis(2-hydroxypropyl......
, the removal of chlorine with sodium hydroxide solution, the first-stage leaching of copper with sulphuric acid and recovering vanadium by roasting the first leached residue with sodium carbonate... with the purity grade of 98.61% is produced. After vanadium removal, the residue is leached once again with sulfuric acid. The total recoveries of copper and vanadium are 98.63% and 95.65%, respectively. Key words......
......
process of copper slag molten reduction tailings[J]. The Chinese Journal of Process Engineering, 2015, 15(4): 620-625. [12] LI Mi, PENG Bing, CHAI Liyuan. Recovery of iron from zinc leaching residue...炭；深度还原；热力学 中图分类号:X758 文献标志码:A 文章编号:1672-7207(2018)07-1598-07 Strengthen recovery characteristics of copper......
9R structure in drawn industrial single crystal copper wires CHEN Jian(陈 建)1, 2, YAN Wen(严 文)1, 2, FAN Xin-hui(范新会)2 1. School of Materials Science and Chemical Engineering, Xi’an Technological...; Abstract: By using transmission electron microscopy, the microstructures of drawn industrial single crystal copper wires produced by Ohno......
J. Cent. South Univ. (2018) 25: 2380-2386 DOI: https://doi.org/10.1007/s11771-018-3922-5 Leaching of chalcopyrite: An emphasis on effect of copper and iron ions YANG Cong-ren(杨聪仁)1, 2, JIAO Fen(焦芬... containing Cu2+. The copper extraction increased with a decrease of the initial redox potential (or the ratio of Fe3+/Fe2+). Key words: chalcopyrite; covellite; chalcocite; leaching; redox potential Cite......
J. Cent. South Univ. (2020) 27: 1404-1415 DOI: https://doi.org/10.1007/s11771-020-4376-0 Bioleaching of low-grade copper sulfide ore by extremely thermoacidophilic consortia at 70 °C in column... (consisting of A. brierleyi DSM1651 and M. hakonensis HO1-1) were studied in column reactors at 70 °C. Introducing M. sedula copA mutant, a copper sensitive derivative, only had negligible effects......
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......
