发明授权
US5382747A Process for the adsorptive separation of metaxylene from aromatic hydrocarbons 失效
来自芳烃的间二甲苯的吸附分离方法

  • 专利标题: Process for the adsorptive separation of metaxylene from aromatic hydrocarbons
  • 专利标题(中): 来自芳烃的间二甲苯的吸附分离方法
  • 申请号: US110528
    申请日: 1993-08-23
  • 公开(公告)号: US5382747A
    公开(公告)日: 1995-01-17
  • 发明人: Santi Kulprathipanja
  • 申请人: Santi Kulprathipanja
  • 申请人地址: IL Des Plaines
  • 专利权人: UOP
  • 当前专利权人: UOP
  • 当前专利权人地址: IL Des Plaines
  • 主分类号: C07C7/12
  • IPC分类号: C07C7/12 C07C7/13 C07C15/08
Process for the adsorptive separation of metaxylene from aromatic
hydrocarbons
摘要:
Metaxylene is recovered from a mixture of C.sub.8 aromatic hydrocarbons including other xylenes by liquid phase adsorptive separation using a sodium or sodium and lithium exchanged Y zeolite as the adsorbent. Performance is improved by maintaining the adsorbent in a narrow range of temperature and hydration. Toluene is the preferred desorbent.
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