JPS5466656A - Preparation of dicyclohexylcarbodiimide - Google Patents

Preparation of dicyclohexylcarbodiimide

Info

Publication number
JPS5466656A
JPS5466656A JP13028177A JP13028177A JPS5466656A JP S5466656 A JPS5466656 A JP S5466656A JP 13028177 A JP13028177 A JP 13028177A JP 13028177 A JP13028177 A JP 13028177A JP S5466656 A JPS5466656 A JP S5466656A
Authority
JP
Japan
Prior art keywords
tungsten
vanadium
chloride
oxide
catalyst
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.)
Pending
Application number
JP13028177A
Other languages
Japanese (ja)
Inventor
Michio Tani
Akira Yoshida
Hiroyuki Muro
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.)
Nippon Soda Co Ltd
Original Assignee
Nippon Soda 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 Soda Co Ltd filed Critical Nippon Soda Co Ltd
Priority to JP13028177A priority Critical patent/JPS5466656A/en
Publication of JPS5466656A publication Critical patent/JPS5466656A/en
Pending 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

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

Abstract

PURPOSE: T prepare the title compound useful as a dehydration condensation reagent, reactive reagent, etc., easily, by the heat decarbonation of cyclohexyl isocyanate using an oxide or chloride of W or V as catalyst.
CONSTITUTION: The title compound is prepared by the heat decarbonation of cyclohexyl isocyanate (CHI) using 0.1-20 wt%, pref. 1-5 wt% based on CHI, of a catalyst selected from tungsten oxide such as tungsten trioxide, tungstic acid, sodium tungstate etc., tungsten chloride such as tungsten dichloride, vanadium oxide such as vanadium pentoxide, vanadic acid (HVO3), etc., and vanadium chloride such as vanadium dichloride, etc., and heating at 100-300°C, pref. 150- 250°C, for 1-20 hours.
EFFECT: The catalyst is easily available, and completely separated from the product by distillation.
COPYRIGHT: (C)1979,JPO&Japio
JP13028177A 1977-11-01 1977-11-01 Preparation of dicyclohexylcarbodiimide Pending JPS5466656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13028177A JPS5466656A (en) 1977-11-01 1977-11-01 Preparation of dicyclohexylcarbodiimide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13028177A JPS5466656A (en) 1977-11-01 1977-11-01 Preparation of dicyclohexylcarbodiimide

Publications (1)

Publication Number Publication Date
JPS5466656A true JPS5466656A (en) 1979-05-29

Family

ID=15030549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13028177A Pending JPS5466656A (en) 1977-11-01 1977-11-01 Preparation of dicyclohexylcarbodiimide

Country Status (1)

Country Link
JP (1) JPS5466656A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023135138A1 (en) 2022-01-11 2023-07-20 Basf Se Process for preparing a carbodiimide using a specific catalytic compound comprising a metal m and oxygen, wherein the metal m is one or more of mo and w

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023135138A1 (en) 2022-01-11 2023-07-20 Basf Se Process for preparing a carbodiimide using a specific catalytic compound comprising a metal m and oxygen, wherein the metal m is one or more of mo and w

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