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Enrichment of Sb2S3 from Jamesonite by Vacuum Distillation
Pages: 1470-1476
Year: Issue:  12
Journal: Vacuum Science and Technology

Keyword:  Antimony sulphideVacuum distillationEnrichmentJamesonite;
Abstract: The feasibility of the enrichment of Sb2S3 from jamesonite by vacuum distillation was theoretically analyzed. The impact of the distillation conditions,including but not limited to the distillation temperature,holding time,pressure and contents of impurities,on the Sb2S3 volatilization rate was experimentally investigated with X-ray diffraction scanning electron microscopy,energy dispersive spectroscopy and conventional chemical analysis. The preliminary results show that depending on the distillation temperature,the enrichment of Sb2S3 from jamesonite by vacuum distillation is feasible. For example,as the distillation temperature increased,the Sb-volatilization rate increased,but the Sb-content in the condensate changed in an increase-decrease mode. Distilled at 973 K and held for 30 min,the volatilization rate of Sb2S3 was found to be 92. 84%,and the Sb-content in the condensate was estimated to be 68. 47%. We suggest that the newly-developed vacuum distillation may outperform the conventional Sb-extraction from jamesonite by smelting because of the reduced environmental pollution,simplified operation and decreased power consumption.
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