Phase evolution of tin oxides roasted under CO-CO2 atmospheres in the presence of Na2CO3
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Release time:2016-07-05 Affiliation of Author(s):Central South University Journal:Miner. Process. Extr. Metall. Rev. Key Words:CO–CO2 atmosphere;Na2SnO3; phase evolution;roasting; tin oxides Abstract:High-purity Na2SnO3 has been prepared by a novel process of roasting SnO2 and Na2CO3 in a solid state
under CO–CO2 mixed gas. In the current study, the phase evolution of tin oxides and Na2CO3 roasted
under various CO–CO2 atmospheres was investigated by chemical and X-ray diffraction analysis. Under
the CO content of 5–20 vol% and temperature over 800°C, Na2CO3 can react with SnO2 and the
intermediate products of SnO and Sn to form Na2SnO3. SnO would be decomposed into SnO2 and Sn
at temperatures below 800°C; however, the decomposition reaction was effectively restrained by
Na2CO3 over 800°C. Indexed by:Unit Twenty Basic Research Discipline:冶金工程学 Document Type:J ISSN No.:0882-7508 (Print) 1547-7401 (Online) Translation or Not:no Date of Publication:2016-05-23 Links to published journals:http://dx.doi.org/10.1080/08827508.2016.1190355 -
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Phase Evolution oF Tin Oxides Roasted Under CO CO2 Atmospheres in the Presence of Na2CO3.pdf
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