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Microstructure and Nano-hardness of Pure Copper and ODS Copper Alloy under Au Ions Irradiation at Room TemperatureJing Zhang,Yong-Qin Chang,Zhi-Meng Guo,Ping-Ping Liu,Yi Long,Fa-Rong WanSchool of Materials Science and Engineering, University of Science and Technology Beijing摘 要:The microstructure and nano-hardness of the pure copper and oxide dispersion......
and growth by slow cooling for recovery of magnetite particles from copper smelting slag [J]. Mineral Processing and Extractive Metallurgy, 2019, 128(4): 248-255. DOI: 10.1080/25726641. 2018.1483793. [9...): 2799-2804. DOI: 10.1007/s11771-017-3694-3. [11] HEO J H, KIM B S, PARK J H. Effect of CaO addition on iron recovery from copper smelting slags by solid carbon [J]. Metallurgical and Materials Transactions B......
. In contrast with noble metals such as Ag and Au, pure metallic copper particles usually cannot be obtained via the reduction of simple copper salts such as copper chloride or copper sulfate in aqueous... as reductant) It can be seen from Fig.2(a) that all the peaks can be readily indexed to pure copper (JCPDS file No. 04-0836). The average grain size of the powder is calculated to be around 70 nm according......
. The copper extraction reaches 46.27% in mixed culture and 30.37% in pure Acidithiobacillus ferrooxidans after leaching for 75 d. Key words: chalcopyrite; bioleaching; Acidithiobacillus ferrooxidans... than pure culture of Acidithiobacillus ferrooxidans and abiotic controls. As anticipated, the pure culture of Acidithiobacillus ferrooxidans is ineffective in leaching chalcopyrite, with copper......
]. Materials Letters, 2002, 53(4/5): 244-249. [2] ZHANG Y S, HAN Z, WANG K, LU K. Friction and wear behaviors of nanocrystalline surface layer of pure copper [J]. Wear, 2006, 260(9/10): 942-948. [3] XIA... Thermodynamic equilibrium calculation on preparation of copper oxalate precursor powder FAN You-qi(樊友奇), ZHANG Chuan-fu(张传福), ZHAN Jing(湛 菁), WU Jian-hui(邬建辉) School of Metallurgical Science......
; 1 Introduction Recently, copper smelting plants expand rapidly due to the skyrocket of price of cathode copper... with antimony and bismuth contamination in copper electrorefining[6-8]. Therefore, how to remove Sb and Bi becomes a key problem facing to copper smelting plants in the world. At present, most smelting plants......
consumption of chemical reagents, high cost in operation and secondary environmental pollution. In addition, leaching and extraction- electrowinning processes are inevitable for obtaining pure copper... was feasible, in which the alloy scraps were used as anode and the copper was recovered in the form of pure copper. It solves the problem of high energy consumption and long flow path for recovering copper......
of Science and Technology, Kunming 650093, China; 2. School of Metallurgy, Northeastern University, Shenyang 110819, China) Abstract: The process of reducing the valuable metal was studied in smelting copper slag by direct reduction of biochar. The reduction characteristics of biochar and pulverized coal were analyzed acting on smelting copper slag. Some influence factors were studied on the change......
Effect of Rare Earth on Microstructure and Properties of Pure Copper党平,赵连山,鲁化一,唐定骧摘 要:<正> Metallograph and scanning electron microscope studies of the distributionand function of rare earthmetals in copper show that RE can reduce the oxygen content,fine the grain Ceils of copper,and enhancethe mechanical and electrical properties.Excess RE......
, YAN Hong-jie, ZHOU Jie-min, GAO Qiang, ZHANG Zhen-yang, LIU Fang-kan, CUI Zhi-xiang. Mechanism of copper smelting process by oxygen bottom blowing and microanalysis of smelting products [J...J. Cent. South Univ. (2017) 24: 335-340 DOI: 10.1007/s11171-017-3435-2 Dissolution kinetics of copper from multi-metal copper alloy roasted in oxygen LU Wei-hong(卢伟红), YIN Zhou-lan(尹周澜), DING Zhi......
