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of Nonferrous Metals, School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China Received 13 August 2012; accepted 20 November 2012 Abstract: The thermodynamics in zinc hydrometallurgical process was studied using a chemical equilibrium modeling code (GEMS) to predict the zinc solubility and construct the species distribution and predominance diagrams for the Zn(II......
Trans. Nonferrous Met. Soc. China 30(2020) 2274-2282 Isothermal reduction kinetics of zinc calcine under carbon monoxide Yu-jie CHEN1, Yun-yan WANG1,2, Ning PENG1,2,3, Yan-jie LIANG1,2, Bing PENG1,2...; accepted 28 June 2020 Abstract: The reduction kinetics of zinc calcine under a CO atmosphere was evaluated by isothermal reductive roasting in a temperature range of 600-800 °C. The extent of reaction......
:1672-7207(2010)01-0039-05 Leaching zinc oxide ore in alkaline solution ZHAO Zhong-wei, JIA Xi-jun, CHEN Ai-liang, LONG Shuang, HUO Guang-sheng, LI Hong-gui (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: To achieve the circulatory leaching of zinc oxide ores, the Bayer process was used to treat bauxite to zinc hydrometallurgy......
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characterization in the hydrometallurgical extraction of zinc[J]. Minerals Engineering, 2008, 21(1): 100-110. [2] SANTOS S M C, MACHADO R M, CORREIA M J N, REIS M T A, ISMAEL M R C, CARVALHO J M R. Ferric sulphate/chloride leaching of zinc and minor elements from a sphalerite concentrate[J]. Minerals Engineering, 2010, 23(8): 606-615. [3] ?OPUR M, ?ZMETIN C, ?ZMETIN E, KOCAKERIM M M. Optimization study......
Article ID: 1003-6326(2005)03-0642-06 Influence of concentration of zinc ions on electrocrystallization process of zinc ZHANG Zhao(张 昭) (Department of Chemistry, Zhejiang University... on zinc electroplating process. The results show that, at high overpotentials, the nucleation of zinc is instantaneous, and nuclear density increases with the overpotentials increasing. While at low......
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STUDY THE INFLUENCE OF H3BO3 ON THE ZINC ELECTROPLATING USING ELECTROCHEMICAL NOISE TECHNIQUE J.Q.ZHANG1,C.N.Cao2,Y.L.Cheng1,Q.Y.Cai1,Z.ZHANG1,F.H.Cao1,C.S.Wu1 (1.Department of Chemistry, Zhejiang...:The influence of H3BO3 on the zinc electroplating was studied using electrochemical noise technique, cyclic voltammetry and steady-state polarization method. The results showed that,under the experimental......
Trans. Nonferrous Met. Soc. China 22(2012) 2261-2267 Element distribution of high iron-bearing zinc calcine in high gradient magnetic field LI Mi1, PENG Bing1, 2, CHAI Li-yuan1, 2, WANG Ji-ming1... of Heavy Metal Pollution,Changsha 410083, China Received 24 August 2011; accepted 5 January 2012 Abstract: High gradient magnetic separation was conducted in order to separate insoluble zinc ferrite......