JPS5359687A - Recovering method of epsilon-caprolactam - Google Patents

Recovering method of epsilon-caprolactam

Info

Publication number
JPS5359687A
JPS5359687A JP13502076A JP13502076A JPS5359687A JP S5359687 A JPS5359687 A JP S5359687A JP 13502076 A JP13502076 A JP 13502076A JP 13502076 A JP13502076 A JP 13502076A JP S5359687 A JPS5359687 A JP S5359687A
Authority
JP
Japan
Prior art keywords
caprolactam
epsilon
recovering method
oligolactams
depolymerization
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
JP13502076A
Other languages
Japanese (ja)
Other versions
JPS596849B2 (en
Inventor
Yukihiro Tonomura
Yasushi Hamanaka
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.)
Toyobo Co Ltd
Original Assignee
Toyobo 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP51135020A priority Critical patent/JPS596849B2/en
Publication of JPS5359687A publication Critical patent/JPS5359687A/en
Publication of JPS596849B2 publication Critical patent/JPS596849B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Other In-Based Heterocyclic Compounds (AREA)
  • Polyamides (AREA)

Abstract

PURPOSE: To recover ε-caprolactam in high yield by ring-opening-polymerization of cyclic oligolactams under heating in the presence of an alkali catalyst, followed by depolymerization.
COPYRIGHT: (C)1978,JPO&Japio
JP51135020A 1976-11-09 1976-11-09 Recovery method of ε-caprolactam Expired JPS596849B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51135020A JPS596849B2 (en) 1976-11-09 1976-11-09 Recovery method of ε-caprolactam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51135020A JPS596849B2 (en) 1976-11-09 1976-11-09 Recovery method of ε-caprolactam

Publications (2)

Publication Number Publication Date
JPS5359687A true JPS5359687A (en) 1978-05-29
JPS596849B2 JPS596849B2 (en) 1984-02-15

Family

ID=15142043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51135020A Expired JPS596849B2 (en) 1976-11-09 1976-11-09 Recovery method of ε-caprolactam

Country Status (1)

Country Link
JP (1) JPS596849B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021094A (en) * 1973-05-18 1975-03-06
JPS5035183A (en) * 1973-07-09 1975-04-03
JPS5087495A (en) * 1973-12-10 1975-07-14

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021094A (en) * 1973-05-18 1975-03-06
JPS5035183A (en) * 1973-07-09 1975-04-03
JPS5087495A (en) * 1973-12-10 1975-07-14

Also Published As

Publication number Publication date
JPS596849B2 (en) 1984-02-15

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