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JPS57158747A - Preparation of isocyanate - Google Patents

Preparation of isocyanate

Info

Publication number
JPS57158747A
JPS57158747A JP56043231A JP4323181A JPS57158747A JP S57158747 A JPS57158747 A JP S57158747A JP 56043231 A JP56043231 A JP 56043231A JP 4323181 A JP4323181 A JP 4323181A JP S57158747 A JPS57158747 A JP S57158747A
Authority
JP
Japan
Prior art keywords
group
isocyanate
catalyst
solvent
oxides
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP56043231A
Other languages
Japanese (ja)
Other versions
JPH0260662B2 (en
Inventor
Shinsuke Fukuoka
Masazumi Chono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Priority to JP56043231A priority Critical patent/JPS57158747A/en
Publication of JPS57158747A publication Critical patent/JPS57158747A/en
Publication of JPH0260662B2 publication Critical patent/JPH0260662B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To prepare the titled compound, in high yield, by the thermal decomposition of a carbamic acid ester in a specific solvent, in the presence of a catalyst containing the copper-group, zinc-group, aluminum-group, carbon-group except C, and titanium-group element and their oxides, etc.
CONSTITUTION: An isocyanate is prepared by the thermal decomposition of a carbamic acid ester in a solvent inert to the isocyanate and essentially non-solvent of the catalyst (e.g. hexane, heptane, etc.) preferably in an inert gas atmosphere at 100W350°C, in the presence of a catalyst containing one or more materials selected from the elements of the copper-group, zinc-group, aluminum- group, carbon group except C and titanium-group of the periodic table, their oxides or sulfides.
EFFECT: The catalyst can be easily separated from the product, and the production of by-products can be suppressed.
USE: Raw material of polyurethane and carbamate pesticides.
COPYRIGHT: (C)1982,JPO&Japio
JP56043231A 1981-03-26 1981-03-26 Preparation of isocyanate Granted JPS57158747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56043231A JPS57158747A (en) 1981-03-26 1981-03-26 Preparation of isocyanate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56043231A JPS57158747A (en) 1981-03-26 1981-03-26 Preparation of isocyanate

Publications (2)

Publication Number Publication Date
JPS57158747A true JPS57158747A (en) 1982-09-30
JPH0260662B2 JPH0260662B2 (en) 1990-12-17

Family

ID=12658131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56043231A Granted JPS57158747A (en) 1981-03-26 1981-03-26 Preparation of isocyanate

Country Status (1)

Country Link
JP (1) JPS57158747A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153962U (en) * 1983-03-31 1984-10-16 三菱重工業株式会社 folding machine
WO1988005430A1 (en) * 1987-01-13 1988-07-28 Daicel Chemical Industries, Ltd. Process for preparing isocyanate compounds
JPS6485956A (en) * 1987-01-13 1989-03-30 Daicel Chem Production of isocyanate compound
EP0355443A2 (en) * 1988-08-18 1990-02-28 Hüls Aktiengesellschaft Cyclic process for the preparation of (cyclo)aliphatic diisocyanates
US5196572A (en) * 1990-12-20 1993-03-23 Mitsubishi Gas Chemical Company, Inc. Process for producing xylylene diisocyanate
US5502244A (en) * 1994-03-18 1996-03-26 Mitsubishi Gas Chemical Company, Inc. Process for producing isocyanates
JP2010528992A (en) * 2007-06-01 2010-08-26 ジャンジアガーン ホワシュヨン ケミカルズ カンパニー リミテッド Method for producing isocyanate alkylsilane
JP2011162442A (en) * 2010-02-04 2011-08-25 Mitsui Chemicals Inc Method for treating catalyst
CN102276501A (en) * 2009-12-31 2011-12-14 中国科学院成都有机化学有限公司 Method for preparing isocyanate through catalytic decomposition of aryl (alkyl) carbamic acid ester
US20110313192A1 (en) * 2010-06-22 2011-12-22 Basf Se Heterogeneously catalyzed carbamate dissociation for synthesis of isocyanates over solid lewis acids
JP2016196498A (en) * 2011-07-13 2016-11-24 宇部興産株式会社 Method for producing isocyanate compound
WO2018212208A1 (en) 2017-05-15 2018-11-22 旭化成株式会社 Isocyanate production method
CN108993501A (en) * 2018-08-09 2018-12-14 苏州汉力新材料有限公司 A kind of silver-silver oxide-zinc oxide photocatalysis material preparation method
CN110423208A (en) * 2019-08-15 2019-11-08 中国科学院过程工程研究所 A kind of preparation method of '-diphenylmethane diisocyanate
CN110467546A (en) * 2018-05-10 2019-11-19 中国科学院过程工程研究所 A method of preparing m-xylylene diisocyanate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119721A (en) * 1974-06-26 1976-02-17 Atlantic Richfield Co Karubameetokarano isoshianeetono seiho
JPS5219624A (en) * 1975-08-07 1977-02-15 Mitsui Toatsu Chem Inc Process for preparation of isocyanates
JPS5488201A (en) * 1977-12-22 1979-07-13 Mitsubishi Chem Ind Ltd Preparation of isocyanate from carbamic acid esters
JPS5665857A (en) * 1979-10-20 1981-06-03 Basf Ag Manufacture of arylisocyanate by arylurethane thermal decomposition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119721A (en) * 1974-06-26 1976-02-17 Atlantic Richfield Co Karubameetokarano isoshianeetono seiho
JPS5219624A (en) * 1975-08-07 1977-02-15 Mitsui Toatsu Chem Inc Process for preparation of isocyanates
JPS5488201A (en) * 1977-12-22 1979-07-13 Mitsubishi Chem Ind Ltd Preparation of isocyanate from carbamic acid esters
JPS5665857A (en) * 1979-10-20 1981-06-03 Basf Ag Manufacture of arylisocyanate by arylurethane thermal decomposition

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153962U (en) * 1983-03-31 1984-10-16 三菱重工業株式会社 folding machine
WO1988005430A1 (en) * 1987-01-13 1988-07-28 Daicel Chemical Industries, Ltd. Process for preparing isocyanate compounds
JPS6485956A (en) * 1987-01-13 1989-03-30 Daicel Chem Production of isocyanate compound
EP0355443A2 (en) * 1988-08-18 1990-02-28 Hüls Aktiengesellschaft Cyclic process for the preparation of (cyclo)aliphatic diisocyanates
US5196572A (en) * 1990-12-20 1993-03-23 Mitsubishi Gas Chemical Company, Inc. Process for producing xylylene diisocyanate
US5502244A (en) * 1994-03-18 1996-03-26 Mitsubishi Gas Chemical Company, Inc. Process for producing isocyanates
JP2010528992A (en) * 2007-06-01 2010-08-26 ジャンジアガーン ホワシュヨン ケミカルズ カンパニー リミテッド Method for producing isocyanate alkylsilane
CN102276501A (en) * 2009-12-31 2011-12-14 中国科学院成都有机化学有限公司 Method for preparing isocyanate through catalytic decomposition of aryl (alkyl) carbamic acid ester
JP2011162442A (en) * 2010-02-04 2011-08-25 Mitsui Chemicals Inc Method for treating catalyst
US20110313192A1 (en) * 2010-06-22 2011-12-22 Basf Se Heterogeneously catalyzed carbamate dissociation for synthesis of isocyanates over solid lewis acids
JP2016196498A (en) * 2011-07-13 2016-11-24 宇部興産株式会社 Method for producing isocyanate compound
WO2018212208A1 (en) 2017-05-15 2018-11-22 旭化成株式会社 Isocyanate production method
CN110467546A (en) * 2018-05-10 2019-11-19 中国科学院过程工程研究所 A method of preparing m-xylylene diisocyanate
CN110467546B (en) * 2018-05-10 2021-03-19 中国科学院过程工程研究所 A kind of method for preparing m-xylylene diisocyanate
CN108993501A (en) * 2018-08-09 2018-12-14 苏州汉力新材料有限公司 A kind of silver-silver oxide-zinc oxide photocatalysis material preparation method
CN110423208A (en) * 2019-08-15 2019-11-08 中国科学院过程工程研究所 A kind of preparation method of '-diphenylmethane diisocyanate
WO2021027953A1 (en) * 2019-08-15 2021-02-18 中国科学院过程工程研究所 Preparation method for diphenylmethane diisocyanate

Also Published As

Publication number Publication date
JPH0260662B2 (en) 1990-12-17

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