JPS51138690A - Process for preparation of epsilon-caprolactam - Google Patents

Process for preparation of epsilon-caprolactam

Info

Publication number
JPS51138690A
JPS51138690A JP50062491A JP6249175A JPS51138690A JP S51138690 A JPS51138690 A JP S51138690A JP 50062491 A JP50062491 A JP 50062491A JP 6249175 A JP6249175 A JP 6249175A JP S51138690 A JPS51138690 A JP S51138690A
Authority
JP
Japan
Prior art keywords
caprolactam
epsilon
preparation
rearrangement
cyclohexanoneoxime
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
JP50062491A
Other languages
Japanese (ja)
Other versions
JPS6020377B2 (en
Inventor
Junji Takeuchi
Takuji Enomiya
Takahito Nakamura
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP50062491A priority Critical patent/JPS6020377B2/en
Publication of JPS51138690A publication Critical patent/JPS51138690A/en
Publication of JPS6020377B2 publication Critical patent/JPS6020377B2/en
Expired 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
    • 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

  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE:?-Caprolactam is quantitatively prepared by the Beckmann's rearrangement of cyclohexanoneoxime with BF3 as a catalyst, while recovering and recycling a rearrangement agent.
JP50062491A 1975-05-27 1975-05-27 Method for producing ε-caprolactam Expired JPS6020377B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50062491A JPS6020377B2 (en) 1975-05-27 1975-05-27 Method for producing ε-caprolactam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50062491A JPS6020377B2 (en) 1975-05-27 1975-05-27 Method for producing ε-caprolactam

Publications (2)

Publication Number Publication Date
JPS51138690A true JPS51138690A (en) 1976-11-30
JPS6020377B2 JPS6020377B2 (en) 1985-05-21

Family

ID=13201682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50062491A Expired JPS6020377B2 (en) 1975-05-27 1975-05-27 Method for producing ε-caprolactam

Country Status (1)

Country Link
JP (1) JPS6020377B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997047596A1 (en) * 1996-06-13 1997-12-18 Basf Aktiengesellschaft METHOD OF PURIFYING ε-CAPROLACTAM
FR2786180A1 (en) * 1998-11-19 2000-05-26 Rhone Poulenc Fibres Method for the purification of lactams by catalytic hydrogenation in the presence of ammonia to give products suitable for the production of polyamides or copolyamides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997047596A1 (en) * 1996-06-13 1997-12-18 Basf Aktiengesellschaft METHOD OF PURIFYING ε-CAPROLACTAM
US5952493A (en) * 1996-06-13 1999-09-14 Basf Aktiengesellschaft Method of purifying ε-caprolactam
FR2786180A1 (en) * 1998-11-19 2000-05-26 Rhone Poulenc Fibres Method for the purification of lactams by catalytic hydrogenation in the presence of ammonia to give products suitable for the production of polyamides or copolyamides
WO2000031031A1 (en) * 1998-11-19 2000-06-02 Rhodia Polyamide Intermediates Method for treating lactams and method for purifying a lactam

Also Published As

Publication number Publication date
JPS6020377B2 (en) 1985-05-21

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees