摘要
研究石煤一段氧压酸浸过程中硫酸亚铁添加剂对钒浸出率的影响。结果表明：在石煤氧压酸浸过程中加入适量添加剂，钒浸出率可提高8．5％左右。不同气体的压力酸浸实验表明，工业生产过程中，可完全用空气代替工业氧气。采用两段氧压酸浸工艺可有效控制一段浸出液的酸度，并实现钒的选择性浸出，最终一段浸出液的酸度可控制在10g／L左右，钒浸出率可提高10％。
The effect of ferrous sulfate on the leaching rate of vanadium by one step leaching process was carried out. The results show that with proper amount of additive the leaching rate of vanadium can be improved by 8.5%. Different gaseous pressure acid leaching experiments show that industrial oxygen can be substituted for dry air in commercial production. The acid value of first step leaching liquors can be effectively controlled at 10 g/L by using two steps leaching process, and the leaching rate of vanadium can be improved by 10%.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2008年第E01期84-87,共4页
The Chinese Journal of Nonferrous Metals
基金
国家高技术研究发展计划资助项目（2006AA062130）
云南省科技厅资助项目（2007GA010）
关键词
石煤
钒
氧压酸浸
硫酸亚铁
浸出率
black shale
vanadium
acid pressure leaching
ferrous sulfate
leaching rate
