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金属矿山 ›› 2009, Vol. 39 ›› Issue (09): 78-80+112.

• 矿物工程 • 上一篇    下一篇

石煤空焙—低酸浸出提钒的试验研究

付自碧   

  1. 攀枝花钢铁研究院
  • 出版日期:2009-09-15 发布日期:2011-04-26

The Experimental Research on Extraction of Vanadium from Stone Coal by No-salt-roasting and Low Acid Leaching

Fu Zibi   

  1. Panzhihua Iron and Steel Research Institute
  • Online:2009-09-15 Published:2011-04-26

摘要: 采用5种不同的工艺对湖北某地区石煤进行的提钒试验表明,该石煤采用空焙—低酸浸出工艺提钒可以取得较好的效果。通过对焙烧温度、焙烧时间、硫酸用量和酸浸时间等工艺参数进行研究表明,在物料粒度-0.147 mm,焙烧温度900~950 ℃,焙烧时间1~1.5 h,酸浸温度常温,硫酸用量2.5%和酸浸时间1 h的条件下,钒转浸率可达77.51%~80.33%。

关键词: 石煤, 钒, 钒浸出率

Abstract: The experiments on vanadium extraction from stone coal of a place in HuBei indicate that the method of no-salt-roasting and low acid leaching could get better result,after comparison of five different technologies.The research on such processing parameters as roasting temperature,roasting time,dosage of sulfuric acid and acid leaching time indicates that the extraction rate of vanadium could reach 77.51%~80.33% under the conditions of material particles of -0.147mm,roasting temperature 900℃ ~950℃,roasting time 1~1.5h,, dosage of sulfuric acid 2.5% and acid leaching time 1h at normal leaching temperature.

Key words: Stone coal, Vanadium, Extraction rate of vanadium