Recovering Vanadium from High Carbon Stone Coal by Means of Direct Acid Leaching
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摘要: 针对四川广旺含钒高碳石煤,在化学分析、岩相分析和电子探针分析的基础上,进行了常压一段和两段酸浸探索性试验,但钒的浸出率不理想,最高仅为54.7%;在此基础上进行了两段加压浸出试验,钒的浸出率最高也仅为72.86%,这与钒的赋存状态及石煤含碳量高有很大关系。Abstract: Based on high carbon stone coal of Guangwang of Sichuan,on the basis of chemical analysis, petrographic analysis and electron probes, recovering vanadium experiment from high carbon stone coal by aid leaching was carried. The result show that the optimum vanadium extraction rate is respectively 54.7% and 72.86% after one and two steps atmospheric leaching and two pressure acid leaching. This two methods do not have high leaching rate of vanadium, because of high carbon content and minerals of stone coal, and carbon have a complex behavior in the leaching process.
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Key words:
- vanadium /
- high carbon stone coal /
- petrographic analysis /
- electron probe /
- acid leaching
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