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Trans. Nonferrous Met. Soc. China 31(2021) 2532-2544 Time-varying impact of political risk on copper prices Jing TANG1, Jian-bai HUANG1,2, Hong-wei ZHANG2,3, Yu-mei LUO1 1. School of Business... effect of political risk on copper prices was examined based on the time-varying parameter structural vector autoregression with stochastic volatility (TVP-SVAR-SV) model. The empirical results show......
Preparation of copper arsenite and its application in purification of copper electrolyte XIAO Fa-xin(肖发新)1, ZHENG Ya-jie(郑雅杰)1, WANG Yong(王 勇)1, 2, JIAN Hong-sheng(简洪生)1, 2, LI Chun-hua(李春华)1...; Abstract: The preparation of copper arsenite with arsenic trioxide was presented and its application in the purification of copper electrolyte was proposed......
J. Cent. South Univ. Technol. (2008) 15: 204-208 DOI: 10.1007/s11771-008-0039-2 Industrial experiment of copper electrolyte purification by copper arsenite ZHENG Ya-jie(郑雅杰)1, XIAO Fa-xin(肖发新)1...; Abstract: Copper electrolyte was purified by copper arsenite that was prepared with As2O3. And electrolysis experiments of purified electrolyte......
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smelting chlorination method applied to removal of copper from copper slagsLI Lei(李磊), WANG Hua(王华), HU Jian-hang(胡建杭) (State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization... and Technology),Kunming 650093, China)Abstract:In order to reasonably utilize the iron resources of copper slags, the smelting chlorination process was used to remove copper from copper slags. higher holding......
Simulated small-scale pilot heap leaching of low-grade copper sulfide ore with selective extraction of copper QIN Wen-qing(覃文庆), ZHANG Yan-sheng(张雁生), LI Wei-zhong(黎维中), WANG Jun(王 军) School...; Abstract: The bioleaching of low-grade copper sulfide ore and the selective......
Synthesis of ultrafine copper particles by complex-reduction-extraction method YANG Jian-guang(杨建广), YANG Sheng-hai(杨声海), TANG Chao-bo(唐朝波), HE Jing(何 静),TANG Mo-tang(唐谟堂) School... copper particles with satisfied anti-oxidation property was described. The resultant particles were characterized by X-ray diffractometry and scanning electron microscopy. The results show that well......
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... were drawn. The results show that when pH is below 5.0, copper ion reacts with directly and the morphology of copper precursor powder is of pie-shape; when pH is above 5.0, copper ion......
J. Cent. South Univ. Technol. (2009) 16: 0708-0712 DOI: 10.1007/s11771-009-0117-0 Characterization of ultrafine copper powder prepared by novel electrodeposition method HE Wei(贺 玮)1, 2, DUAN...; Abstract: The auto-evolved ultrafine copper powders were synthesized via a novel electrodeposition route performed by ultrasonic......
J. Cent. South Univ. (2018) 25: 2143-2149 DOI: https://doi.org/10.1007/s11771-018-3903-8 Influence of porogen type and copper powder morphology on property of sintering copper porous materials LIU..., part of Springer Nature 2018 Abstract: Copper porous materials have been manufactured by the method of powder metallurgy. Electrolytic copper powders and atomized copper powders are used as matrix......
