JPS57158748A - Preparation of isocyanate - Google Patents

Preparation of isocyanate

Info

Publication number
JPS57158748A
JPS57158748A JP56043232A JP4323281A JPS57158748A JP S57158748 A JPS57158748 A JP S57158748A JP 56043232 A JP56043232 A JP 56043232A JP 4323281 A JP4323281 A JP 4323281A JP S57158748 A JPS57158748 A JP S57158748A
Authority
JP
Japan
Prior art keywords
group
catalyst
isocyanate
solvent
vanadium
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
JP56043232A
Other languages
Japanese (ja)
Other versions
JPH0238582B2 (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 JP56043232A priority Critical patent/JPS57158748A/en
Publication of JPS57158748A publication Critical patent/JPS57158748A/en
Publication of JPH0238582B2 publication Critical patent/JPH0238582B2/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

Abstract

PURPOSE: To prepare the titled compound useful as a raw material of pesticides, etc., in high yield, by the thermal decomposition of a carbamic acid ester in a specific solvent in the presence of a catalyst the carbide or nitride of the element of carbon-group except C, titanium-group, vanadium-group and chromium- group.
CONSTITUTION: An isocyanate is prepared by the thermal decomposition of a carbamic acid ester (e.g. methyl carbanylate) in a solvent which is inert to the isocyanate and is 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 compounds selected from the carbide and nitride of the element of carbon-group except C, titanium-group, vanadium-group and chromium-group (e.g. SiC, TiC, ZrC, Si3N4, Ge3N4, TiN, etc.).
EFFECT: The catalyst can be separated easily from the product, and the production of by-products can be suppressed.
COPYRIGHT: (C)1982,JPO&Japio
JP56043232A 1981-03-26 1981-03-26 Preparation of isocyanate Granted JPS57158748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56043232A JPS57158748A (en) 1981-03-26 1981-03-26 Preparation of isocyanate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56043232A JPS57158748A (en) 1981-03-26 1981-03-26 Preparation of isocyanate

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP63028905A Division JPS63211257A (en) 1988-02-12 1988-02-12 Production of isocyanate

Publications (2)

Publication Number Publication Date
JPS57158748A true JPS57158748A (en) 1982-09-30
JPH0238582B2 JPH0238582B2 (en) 1990-08-31

Family

ID=12658159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56043232A Granted JPS57158748A (en) 1981-03-26 1981-03-26 Preparation of isocyanate

Country Status (1)

Country Link
JP (1) JPS57158748A (en)

Cited By (2)

* 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
WO2018212208A1 (en) 2017-05-15 2018-11-22 旭化成株式会社 Isocyanate production method

Citations (2)

* 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

Patent Citations (2)

* 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

Cited By (2)

* 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
WO2018212208A1 (en) 2017-05-15 2018-11-22 旭化成株式会社 Isocyanate production method

Also Published As

Publication number Publication date
JPH0238582B2 (en) 1990-08-31

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