JPS57185239A - Preparation of m- or p-nitrobenzoic acid - Google Patents

Preparation of m- or p-nitrobenzoic acid

Info

Publication number
JPS57185239A
JPS57185239A JP56067645A JP6764581A JPS57185239A JP S57185239 A JPS57185239 A JP S57185239A JP 56067645 A JP56067645 A JP 56067645A JP 6764581 A JP6764581 A JP 6764581A JP S57185239 A JPS57185239 A JP S57185239A
Authority
JP
Japan
Prior art keywords
nitrotoluene
acetaldehyde
compound
amount
promotor
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
JP56067645A
Other languages
Japanese (ja)
Inventor
Hajime Torigata
Kenji Nakaoka
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP56067645A priority Critical patent/JPS57185239A/en
Publication of JPS57185239A publication Critical patent/JPS57185239A/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

Abstract

PURPOSE: To obtain the titled substance of high purity, by oxidizing m- or p- nitrotoluene in the absence of bromine in the presence of a Co compound as a catalyst and acetaldehyde as a promotor at a specific temperature and pressure in an inexpensive stainless steel apparatus.
CONSTITUTION: In oxidizing p-nitrotoluene with molecular oxygen in acetic acid solvent to give the titled compound, a Co compound is used as a heavy metallic catalyst, and acetaldehyde is used as a promotor. The reaction is carried out in the absence of bromine at 110W140°C and 3W30 atm. The amount of the acetic acid solvent is 1.5W6 times that of the nitrotoluene, and the Co compound, e.g. Co salt of a lower aliphatic carboxylic acid or cobalt carbonate, is used in an amount of 0.2W0.5wt% expressed in terms of metallic Co. The acetaldehyde is used in an amount of 0.5W1 based on the nitrotoluene. Preferably, the acetaldehyde is fed continuously and uniformly to the whole reactor.
USE: A raw material for agricultural chemicals, medicines, and dyes.
COPYRIGHT: (C)1982,JPO&Japio
JP56067645A 1981-05-07 1981-05-07 Preparation of m- or p-nitrobenzoic acid Pending JPS57185239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067645A JPS57185239A (en) 1981-05-07 1981-05-07 Preparation of m- or p-nitrobenzoic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067645A JPS57185239A (en) 1981-05-07 1981-05-07 Preparation of m- or p-nitrobenzoic acid

Publications (1)

Publication Number Publication Date
JPS57185239A true JPS57185239A (en) 1982-11-15

Family

ID=13350951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067645A Pending JPS57185239A (en) 1981-05-07 1981-05-07 Preparation of m- or p-nitrobenzoic acid

Country Status (1)

Country Link
JP (1) JPS57185239A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824631A (en) * 1994-06-03 1998-10-20 Wagenknecht; John H. Compositions for dissolution of soft metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824631A (en) * 1994-06-03 1998-10-20 Wagenknecht; John H. Compositions for dissolution of soft metals

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