Invention Grant
US08735635B2 Process for making 1, 2-propane diol from hydrogenation of glycerol 有权
甘油氢化制备1,2-丙二醇的方法

  • Patent Title: Process for making 1, 2-propane diol from hydrogenation of glycerol
  • Patent Title (中): 甘油氢化制备1,2-丙二醇的方法
  • Application No.: US13203264
    Application Date: 2010-02-23
  • Publication No.: US08735635B2
    Publication Date: 2014-05-27
  • Inventor: Stephen Raymond Schmidt
  • Applicant: Stephen Raymond Schmidt
  • Applicant Address: US MD Columbia
  • Assignee: W. R. Grace & Co.-Conn.
  • Current Assignee: W. R. Grace & Co.-Conn.
  • Current Assignee Address: US MD Columbia
  • Agent Charles A. Cross
  • International Application: PCT/US2010/024977 WO 20100223
  • International Announcement: WO2010/099078 WO 20100902
  • Main IPC: C07C27/00
  • IPC: C07C27/00
Process for making 1, 2-propane diol from hydrogenation of glycerol
Abstract:
This invention is a process for making 1,2-propane diol from glycerol. The process comprises subjecting a glycerol stream to hydrogenation conditions in the presence of a transition metal promoted skeletal copper catalyst to enhance selective production of 1,2-propane diol product. Chromium promoted catalyst is preferred for this invention, and moreover, it is preferred that the skeletal copper catalyst is prepared from copper aluminum alloys that have been subjected to leaching conditions selected to achieve at least 40% leaching of aluminum from the alloy. This process is particularly conducive to conducting the hydrogenation with reactant mixture in the liquid phase. The catalysts used in this invention are particularly suitable for use in a fixed catalyst bed, but can be activated and sized so that the catalyst is also suitable for use in slurry based reactions.
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