caa a22 4500 463222865 CHVBK 20180405153217.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-1391-y doi (NATIONALLICENCE)springer-10.1007/s10853-006-1391-y Kinetics of carbothermic reduction of zinc sulfide in the presence of calcium carbonate [Elektronische Daten] [C. Wu, C. Lin, H. Chen] The kinetics of the carbothermic reduction of zinc sulfide in the presence of calcium carbonate was investigated by an atomic absorption spectrometer (AAS) and a thermogravimetric analysis system (TGA). Experimental results indicate that TGA data accompanying with the equation derived from two-stage mechanism can be used to calculate the zinc yield properly. The results of TGA revealed that the rate of reduction in the presence of calcium carbonate was close to that in the presence of calcium oxide. The reduction rate was found to increase with increasing the reaction temperature, the initial molar ratio of C/ZnS, or the initial molar ratio of CaCO3/ZnS and with decreasing the argon flow rate, the sample height, the size of carbon aggregate, the size of calcium carbonate aggregate or the initial bulk density. An empirical rate expression of zinc yield has been regressed based on the experimental data obtained. Springer Science+Business Media, LLC, 2007 Wu C. Department of Chemical Engineering, National Taiwan University of Science and Technology, 106, Taipei, Taiwan, ROC aut Lin C. Department of Chemical Engineering, National Taiwan University of Science and Technology, 106, Taipei, Taiwan, ROC aut Chen H. Department of Biochemical Engineering, Hwa-Hsia College of Technology and Commerce, 235, Taipei, Taiwan, ROC aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/6(2007-03-01), 2157-2166 0022-2461 42:6<2157 2007 42 10853 https://doi.org/10.1007/s10853-006-1391-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1391-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu C. Department of Chemical Engineering, National Taiwan University of Science and Technology, 106, Taipei, Taiwan, ROC aut NATIONALLICENCE 700 1- Lin C. Department of Chemical Engineering, National Taiwan University of Science and Technology, 106, Taipei, Taiwan, ROC aut NATIONALLICENCE 700 1- Chen H. Department of Biochemical Engineering, Hwa-Hsia College of Technology and Commerce, 235, Taipei, Taiwan, ROC aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/6(2007-03-01), 2157-2166 0022-2461 42:6<2157 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer