• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of industrial and engineering chemistry >Separation and recovery of vanadium from leached solution of spent residuehydrodesulfurization (RHDS) catalyst using solvent extraction
【24h】

Separation and recovery of vanadium from leached solution of spent residuehydrodesulfurization (RHDS) catalyst using solvent extraction

机译：使用溶剂萃取从废渣加氢脱硫（RHDS）催化剂的浸出溶液中分离和回收钒

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Leached solution, generated by oxalic acid washing of spent residue hydrodesulfurization (RHDS) catalyst, was used for separation and recovery of vanadium. First of all, solvent extraction, using mixture of 20% (v/ v) Alamine-336 and 5% (v/v) tri-butyl phosphate (TBP) as a phase modifier, was conducted to extract molybdenum completely at pH 0.50. Then molybdenum-free solution was used for vanadium extraction at pH 1.25 with 20% Alamine-336 and 5% TBP. Stripping of vanadium from loaded organic solution was performed with 1.5 M H2SO4 at O/A phase ratio of 5:1 where more than 99% of vanadium was stripped in two stages. The stripped vanadium solution was further processed by precipitating with ammonium hydroxide to recover ammonium-meta-vanadate which was calcined to obtain vanadium pentoxide. Finally a conceptual process was established for recovery of high purity vanadium pentoxide from oxalic acid leached solution of spent residue hydrodesulfurization (RHDS) catalyst.
机译：通过草酸洗涤废渣加氢脱硫（RHDS）催化剂产生的沥滤溶液用于分离和回收钒。首先，进行溶剂萃取，使用20％（v / v）的Alamine-336和5％（v / v）的磷酸三丁酯（TBP）的混合物作为相改性剂，以完全萃取pH为0.50的钼。然后将不含钼的溶液用于pH值为1.25的钒提取过程中，加入20％Alamine-336和5％TBP。用1.5 M H2SO4以5：1的O / A相比从负载的有机溶液中汽提钒，其中分两步汽提超过99％的钒。汽提的钒溶液通过用氢氧化铵沉淀进一步处理以回收偏钒酸铵，将其煅烧以获得五氧化二钒。最后，建立了一种概念方法，用于从废渣加氢脱硫（RHDS）催化剂的草酸浸出溶液中回收高纯度五氧化二钒。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号