Carbothermic reduction of zinc sulfide in the presence of calcium oxide and lithium carbonate

• Published in: Journal of materials science Vol. 42; no. 17; pp. 7558 - 7565
• Main Authors: Peng, Y. C, Lin, C. I, Chen, H. K
• Format: Journal Article
• Language: English
• Published: Heidelberg Kluwer Academic Publishers-Plenum Publishers 01.09.2007; Springer; Springer Nature B.V
• Subjects: absorption; Atomic absorption analysis; Calcium carbonate; Calcium oxide; carbon; Carbothermic reactions; catalysts; Chemistry; Exact sciences and technology; Inorganic chemistry and origins of life; Kinetics and mechanism of reactions; Lime; Lithium; Lithium carbonate; Materials science; Reaction mechanisms; Reduction; scanning electron microscopes; Scanning electron microscopy; Spectroscopy; sulfur; surface area; Thermogravimetric analysis; thermogravimetry; X-ray diffraction; zinc; Zinc sulfide; Zinc sulfides; Lithium Carbonates; Scanning electron microscopy; Catalytic reaction; Calcium oxide; Carbothermy; Thermogravimetry; Experimental study; X ray diffraction; Chemical reduction; Zinc sulfide; Sulfides; Reaction mechanism; Surface area; Atomic absorption spectrometry
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-007-1601-2

The carbothermic reduction of zinc sulfide in the presence of calcium oxide and lithium carbonate was studied using a thermogravimetric analysis system (TGA), an X-ray diffractometer (XRD), an atomic absorption spectrometer (AAS), a carbon and sulfur determinator (CSD), an elemental analyzer (EA), a scanning electron microscope (SEM) and a surface area analyzer (SAA). Experimental results revealed that the reaction rate was significantly enhanced by the lithium carbonate catalyst. The results of TGA, AAS, CSD and EA were found to be comparable. A reaction mechanism was proposed to interpret the overall reaction.