JPS53137930A - Preparation of aromatic isocyanates - Google Patents

Preparation of aromatic isocyanates

Info

Publication number
JPS53137930A
JPS53137930A JP5199077A JP5199077A JPS53137930A JP S53137930 A JPS53137930 A JP S53137930A JP 5199077 A JP5199077 A JP 5199077A JP 5199077 A JP5199077 A JP 5199077A JP S53137930 A JPS53137930 A JP S53137930A
Authority
JP
Japan
Prior art keywords
preparation
aromatic isocyanates
arom
decomposition
reaction
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
JP5199077A
Other languages
Japanese (ja)
Other versions
JPS5715829B2 (en
Inventor
Hiroshi Hirai
Katsuji Miyata
Makoto Aiga
Seiji Hasegawa
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP5199077A priority Critical patent/JPS53137930A/en
Publication of JPS53137930A publication Critical patent/JPS53137930A/en
Publication of JPS5715829B2 publication Critical patent/JPS5715829B2/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
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Catalysts (AREA)

Abstract

PURPOSE: To prepare arom. isocyanates in high yield by reaction of arom. nitro cpds. with CO in the presence of metals of platinum group as catalysts, followed by decomposition of the obtd. carbamyl halide and by recycling the used catalyst and the mother liquor of the decomposition reaction.
COPYRIGHT: (C)1978,JPO&Japio
JP5199077A 1977-05-09 1977-05-09 Preparation of aromatic isocyanates Granted JPS53137930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5199077A JPS53137930A (en) 1977-05-09 1977-05-09 Preparation of aromatic isocyanates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5199077A JPS53137930A (en) 1977-05-09 1977-05-09 Preparation of aromatic isocyanates

Publications (2)

Publication Number Publication Date
JPS53137930A true JPS53137930A (en) 1978-12-01
JPS5715829B2 JPS5715829B2 (en) 1982-04-01

Family

ID=12902283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5199077A Granted JPS53137930A (en) 1977-05-09 1977-05-09 Preparation of aromatic isocyanates

Country Status (1)

Country Link
JP (1) JPS53137930A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121836A (en) * 1979-03-06 1980-09-19 Enu Dee Zerinsukogo Akademii N Catalyst for changing aromatic nitro compound into carbonyl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121836A (en) * 1979-03-06 1980-09-19 Enu Dee Zerinsukogo Akademii N Catalyst for changing aromatic nitro compound into carbonyl
JPS5814818B2 (en) * 1979-03-06 1983-03-22 インスチット・オルガニ チエスコイ ヒミイイメニ エヌ・デ−・ゼリンスコゴ アカデミイ ナウク エスエスエスア−ル Catalyst for carbonylation of aromatic nitro compounds

Also Published As

Publication number Publication date
JPS5715829B2 (en) 1982-04-01

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