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J. Cent. South Univ. (2020) 27: 27-36 DOI: https://doi.org/10.1007/s11771-020-4275-4 Kinetics of leaching lithium from lepidolite using mixture of hydrofluoric and sulfuric acid WANG Hai-dong(王海东)1... shows great potential in leaching lithium (Li) from lepidolite. Leaching kinetics of Li in a mixture of sulfuric acid and hydrofluoric acid, which is a typical lixivant for the fluorine-based chemical......
A MODEL FOR BAINITIC TRANSFORMATION KINETICS WITHPARABOLIC NUCLEATION RATE Z.Liu1,K.F.Yao1,C.C.Liu1 (1.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China) Abstract:Based on the assumptions of parabolic variation of nucleation rate versus time andtransformation kinetics depending mainly on nucleation rate, a different model forbainitic transformation kinetics......
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Reduction Kinetics of Nickel Sulphide刘中华,刘纯鹏摘 要:<正> Reduction kinetics of Ni3S2 was experimen-tally studied by following the time required forcompletion of the hydrogen reduction reaction inthe presence of calcium oxide.A simple empiricalintegration equation,derived for describing the ef-fect of CaO/S molar ratio,temperature,hydrogenconcentration......
; Equilibrium and kinetics... models were applied to describing the equilibrium isotherms, and isotherm constants were determined. The kinetics of the adsorption with respect to the initial Ca(Ⅱ) ions concentration, temperature......
识码:A Oxidation kinetics of NiCoCrAlYTa coating by low pressure plasma spraying ZHOU Ke-song1, LIANG Xing-hua1, 2, LIU Min1, DENG Chang-guang1 (1. Material Surface Center, Guangzhou Research... on Ni-based single crystal super-alloys by low pressure plasma spraying (LPPS). Oxidation kinetics of the coating oxidated for 200 h at three different temperatures was investigated. The results show......
FACILE HYDROTHERMAL SYNTHESIS AND GROWTH KINETICS OF FE-BASED MAGNETIC NANOPARTICLES Y. Shen1,Z.W. Song1,C.X. You1,J.C. Zhang1 (1.Shool of Material Science and Engineering, Shanghai University... a relatively homogeneous size. The particle diameters became bigger with the increaseof reaction time. The growth kinetics of the Fe3O4 nanoparticles was also briefly discussed. Theproducts exhibited......
Kinetics Researches of La1-x SrxMnO3 Powder by Microwave Synthesis CHU Gang1,ZHAI Xiujing1,Liu Zhongwen1,Wang Jie1,Fu Yan1 (1.School of Materials &Metallurgy, Northeastern University, Shenyang... -xSrxMnO3.The kinetics course of synthesizing La1-xSrxMnO3 materials by microwave technology was discussed.Using DTA-TGA and XRD analysis, the process and principle of solid reaction were examined.The results......