钙化钒液萃取除杂工艺研究  

Study on the impurities removal process of calcified vanadium liquid by extraction process

作　　者：汪劲鹏 叶露 WANG Jingpeng;YE Lu(State Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,Sichuan,China)

机构地区：[1]钒钛资源综合利用国家重点实验室,攀钢集团研究院有限公司,四川攀枝花617000

出　　处：《钢铁钒钛》2025年第1期20-24,33,共6页Iron Steel Vanadium Titanium

摘　　要：以攀钢西昌钒厂的酸性钙化钒液为研究对象,针对其低酸高钒、除杂困难的特点,采用萃取除杂工艺针对性地去除Mn^(2+)、Ca^(2+)、Fe^(3+)阳离子,考察了萃取过程的主要影响因素。确定的最佳萃取参数为:有机相配比20%P204+80%260^(#)溶剂油,氨水皂化,皂化率100%,萃取剂相比为O/A=2:1,单级萃取时间为5 min,钒液初始pH值为2.9,Mn、Ca的单级萃取率可达到98%以上,萃取后钒液中Mn的含量为0.05 g/L,Ca、Fe、Al的浓度均小于0.1 g/L。The acidic calcified vanadium solution from Pangang Xichang Vanadium Plant was the research object in this study.In response to its characteristics of low acidity,high vanadium content,and difficulty in impurities removal,an extraction process was adopted to specifically remove Mn^(2+),Ca^(2+)and Fe^(3+)cations.The main influencing factors of the extraction process were investigated.And the optimal extraction parameters were determined.The organic phase ratio was 20%P204+80%260^(#)solvent oil with a saponification rate of 100%using ammonium hydroxide.The extractant ratio was O/A=2:1 at the initial pH of vanadium solution of 2.9 for 5 minutes.Under the above conditions,the single stage extraction rate of Mn and Ca reach over 98%.After extraction,the Mn content drops to around 0.05 g/L,Ca,Fe and Al leves are below 0.1 g/L in acidic vanadium solution.

关 键 词：酸性钒液 钙化提钒 萃取除杂 除锰 

分 类 号：TF841.3[冶金工程—有色金属冶金]