制酸废催化剂回收钒
来源期刊：有色金属2010年第4期
论文作者：王晓丹 朱云
文章页码：62 - 64
关键词：冶金技术； 钒； 硫酸浸出； 制酸废催化剂
Key words：metallurgical technology； vanadium； sulphuric acid leaching； spent acid-making catalyst
摘 要：用硫酸浸出-P204萃取工艺从制酸废催化剂中回收钒。结果表明,在浸出条件为硫酸浓度50g/L,液固比2∶1,时间30min时,钒的浸出率可达95%。浸出液经过P204萃取,饱和NaHCO3溶液反萃,反萃液净化,铵盐沉钒,偏钒酸铵热分解后得到了合格的V2O5。
Abstract: Vanadium is recovered from spent acid-making catalyst through the process of sulphuric acid leaching-P204 extraction.The experiment results show that leaching rate of vanadium can reach to 95% with the leaching conditions of sulphuric acid concentration of 50g/L,liquid-solid ratio of 2∶1,30min.Qualified V2O5 is obtained after the process of P204 extraction,saturated NaHCO3 solution stripping,stripping solution purification,vanadium precipitation by ammonium salt,and ammonium metavanadate thermal decomposition.
王晓丹1，朱云1
(1.云南省昆明市昆明理工大学材料与冶金工程学院)
摘 要：用硫酸浸出-P204萃取工艺从制酸废催化剂中回收钒。结果表明,在浸出条件为硫酸浓度50g/L,液固比2∶1,时间30min时,钒的浸出率可达95%。浸出液经过P204萃取,饱和NaHCO3溶液反萃,反萃液净化,铵盐沉钒,偏钒酸铵热分解后得到了合格的V2O5。
关键词：冶金技术； 钒； 硫酸浸出； 制酸废催化剂
