无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2012, Vol. 44 ›› Issue (11): 57-.

• 论文 • 上一篇    下一篇

废钒催化剂综合回收利用技术的研究

刘 彬,于少明,张 颍,程磊磊,查才存   

  1. 合肥工业大学化工学院,安徽合肥 230009
  • 出版日期:2012-11-10 发布日期:2012-11-09

Study on comprehensive recovery and utilization of waste vanadium catalyst

 LIU   Bin, YU  Shao-Ming, ZHANG   Ying, CHENG  Lei-Lei, CHA  Cai-Cun   

  1. School of Chemical Engineering,Hefei University of Technology,Hefei 230009,China
  • Published:2012-11-10 Online:2012-11-09

摘要: 研究了由废钒催化剂制取五氧化二钒、硫酸钾、液体硅酸钠的方法,确定了适宜的工艺路线和条件,重点考察了废钒催化剂还原酸浸的条件,分析了产品质量。废钒催化剂还原酸浸的最佳工艺条件:硫酸溶液与废钒催化剂液固质量比为2∶1、反应温度为90 ℃、硫酸质量分数为8%、反应时间为2 h。在此工艺条件下,钒、钾的浸出率分别达到93.5%和96.6%,五氧化二钒、硫酸钾、液体硅酸钠等产品的主组分含量均符合相应国家标准要求。

关键词: 废钒催化剂, 五氧化二钒, 硫酸钾, 工业液体硅酸钠

Abstract: The preparation method of vanadium pentoxide,potassium sulfate,and liquid sodium silicate from the waste vanadium catalyst was studied.The optimum process route and conditions were determined.The acid leaching reduction conditions of waste vanadium catalyst were investigated emphatically and the quality of products was analyzed.The optimum acid leaching reduction conditions were as follows: liquid solid mass ratio of sulfuric acid solution to waste vanadium catalyst was 2∶1,reaction temperature was 90 ℃,mass fraction of sulfuric acid was 8%,and reaction time was 2 h.Under the optimum conditions, the leaching ratios of vanadium and potassium were 93.5% and 96.6% respectively.Moreover,the main component contents of vanadium pentoxide,potassium sulfate,and liquid sodium silicate products could all meet the national standards.

Key words: waste vanadium catalyst, vanadium pentoxide, potassium sulfate, industrial liquid sodium silicate

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