摘要
研究了用P204从铁钒渣钙化焙烧后的酸浸液中萃取钒,考察了有机相组成、相比、混合时间、萃原液pH对萃取钒的影响及硫酸溶液对负载有机相反萃取的影响。结果表明:以15%P204+10%TBP+75%磺化煤油为有机相,经过5级逆流萃取,V2O5萃取率达97%;用硫酸溶液对负载有机相进行反萃取,经过5级逆流反萃取,V2O5反萃取率达99%,钒得到有效回收。
Extraction of vanadium in the leaching solution of vanadium-iron slag from calcification roasting—acid leaching process using P204 was studied.The effects of organic phase composition,phase ratio,mixing time and feed solution pH on the extraction of vanadium and sulfuric acid on the back-extraction of loading organic phase were examined.The results show that extraction rate of V2O5 is 97%under the conditions of using 15%P204+10%TBP+75%sulfonated kerosene as organic phase and five-stage countercurrent extraction.The back-extraction of V2O5 is 99%by five-stage counter-current back-extraction.The vanadium is recovered effectively.
作者
郭双华
洪颖
姜晔
葛荣庭
GUO Shuanghua;HONG Ying;JIANG Ye;GE Rongting(Yangzhou College of Industrial Technology,Yangzhou 225127,China)
出处
《湿法冶金》
CAS
北大核心
2020年第4期309-312,共4页
Hydrometallurgy of China
基金
扬州工业职业技术学院校级大学生创新训练计划项目(201913754040S)。
关键词
钒铁渣
硫酸
浸出
钒
溶剂萃取
vanadium-iron slag
sulfuric acid
leaching
vanadium
solvent extraction
