WO2008120639A1 - Process for production of ethylene oxide - Google Patents

Process for production of ethylene oxide Download PDF

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Publication number
WO2008120639A1
WO2008120639A1 PCT/JP2008/055743 JP2008055743W WO2008120639A1 WO 2008120639 A1 WO2008120639 A1 WO 2008120639A1 JP 2008055743 W JP2008055743 W JP 2008055743W WO 2008120639 A1 WO2008120639 A1 WO 2008120639A1
Authority
WO
WIPO (PCT)
Prior art keywords
chlorine compound
organic chlorine
reactor
ethylene oxide
catalyst
Prior art date
Application number
PCT/JP2008/055743
Other languages
French (fr)
Japanese (ja)
Inventor
Takao Kobayashi
Masaharu Kiriki
Masatsugu Mikawa
Original Assignee
Nippon Shokubai Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Shokubai Co., Ltd. filed Critical Nippon Shokubai Co., Ltd.
Priority to JP2009507481A priority Critical patent/JP5215992B2/en
Publication of WO2008120639A1 publication Critical patent/WO2008120639A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02—Compounds containing oxirane rings
    • C07D303/04—Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Epoxy Compounds (AREA)
  • Catalysts (AREA)

Abstract

Disclosed is a process for producing ethylene oxide by feeding ethylene, oxygen and an organic chlorine compound into a reactor containing a catalyst. In the process, the activity, selectivity, life duration or the like of the catalyst can be improved by running the reaction while controlling the feed rate of the organic chlorine compound in accordance with the cumulative number of moles of chlorine atom in the organic chlorine compound fed into the reactor at a reaction stage where the amount of the organic chlorine compound fed into the reactor is small, and then adjusting the feed rate of the organic chlorine compound to an optimal value.
PCT/JP2008/055743 2007-03-30 2008-03-26 Process for production of ethylene oxide WO2008120639A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009507481A JP5215992B2 (en) 2007-03-30 2008-03-26 Method for producing ethylene oxide

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-091448 2007-03-30
JP2007091441 2007-03-30
JP2007-091441 2007-03-30
JP2007091448 2007-03-30

Publications (1)

Publication Number Publication Date
WO2008120639A1 true WO2008120639A1 (en) 2008-10-09

Family

ID=39808221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055743 WO2008120639A1 (en) 2007-03-30 2008-03-26 Process for production of ethylene oxide

Country Status (2)

Country Link
JP (1) JP5215992B2 (en)
WO (1) WO2008120639A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024076943A1 (en) * 2022-10-04 2024-04-11 Dow Global Technologies Llc Process for reducing the overchloriding of high selectivity ethylene oxide catalysts during restarts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104579A (en) * 1988-07-25 1990-04-17 Shell Internatl Res Maatschappij Bv Production of ethylene oxide
JP2005516900A (en) * 2001-11-20 2005-06-09 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー Methods and systems for olefin epoxidation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104579A (en) * 1988-07-25 1990-04-17 Shell Internatl Res Maatschappij Bv Production of ethylene oxide
JP2005516900A (en) * 2001-11-20 2005-06-09 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー Methods and systems for olefin epoxidation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024076943A1 (en) * 2022-10-04 2024-04-11 Dow Global Technologies Llc Process for reducing the overchloriding of high selectivity ethylene oxide catalysts during restarts

Also Published As

Publication number Publication date
JP5215992B2 (en) 2013-06-19
JPWO2008120639A1 (en) 2010-07-15

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