Invention Grant
- Patent Title: Process for producing propylene glycol
- Patent Title (中): 制备丙二醇的方法
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Application No.: US12740197Application Date: 2008-10-28
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Publication No.: US08053608B2Publication Date: 2011-11-08
- Inventor: Hiroshi Kouno , Shuji Ozawa , Naritoshi Yoshimura
- Applicant: Hiroshi Kouno , Shuji Ozawa , Naritoshi Yoshimura
- Applicant Address: JP Minato-ku, Tokyo
- Assignee: Mitsui Chemicals, Inc.
- Current Assignee: Mitsui Chemicals, Inc.
- Current Assignee Address: JP Minato-ku, Tokyo
- Agency: Rankin, Hill & Clark LLP
- Priority: JP2007-283402 20071031; JP2008-155666 20080613
- International Application: PCT/JP2008/069527 WO 20081028
- International Announcement: WO2009/057584 WO 20090507
- Main IPC: C07C29/60
- IPC: C07C29/60
Abstract:
It is an object of the present invention to provide a process for producing propylene glycol from glycerol as a raw material without the necessity for a step of gasifying glycerol. The process for producing propylene glycol of the present invention comprises a step of subjecting glycerol to catalytic hydrogenation in the presence of a catalyst A containing zinc oxide, silica, and at least one of copper and copper oxide.
Public/Granted literature
- US20100256425A1 PROCESS FOR PRODUCING PROPYLENE GLYCOL Public/Granted day:2010-10-07
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