JPS52151186A - Purifying of epsilonn caprolactam - Google Patents

Purifying of epsilonn caprolactam

Info

Publication number
JPS52151186A
JPS52151186A JP6492777A JP6492777A JPS52151186A JP S52151186 A JPS52151186 A JP S52151186A JP 6492777 A JP6492777 A JP 6492777A JP 6492777 A JP6492777 A JP 6492777A JP S52151186 A JPS52151186 A JP S52151186A
Authority
JP
Japan
Prior art keywords
epsilonn
caprolactam
purifying
epsilonn caprolactam
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
JP6492777A
Other languages
Japanese (ja)
Inventor
Ururitsuhi Kaizaa Berunto
Dantsuigaa Harii
Inmeru Otsutoo
Herumuuto Shiyubarutsu Hansu
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of JPS52151186A publication Critical patent/JPS52151186A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrrole Compounds (AREA)
  • Polyamides (AREA)
JP6492777A 1976-06-05 1977-06-03 Purifying of epsilonn caprolactam Pending JPS52151186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762625402 DE2625402A1 (en) 1976-06-05 1976-06-05 CLEANING EPSILON CAPROLACTAM

Publications (1)

Publication Number Publication Date
JPS52151186A true JPS52151186A (en) 1977-12-15

Family

ID=5979933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6492777A Pending JPS52151186A (en) 1976-06-05 1977-06-03 Purifying of epsilonn caprolactam

Country Status (10)

Country Link
JP (1) JPS52151186A (en)
BE (1) BE855367A (en)
BR (1) BR7703572A (en)
CH (1) CH626339A5 (en)
DD (1) DD132491A5 (en)
DE (1) DE2625402A1 (en)
ES (1) ES459328A1 (en)
FR (1) FR2353535A1 (en)
GB (1) GB1535485A (en)
NL (1) NL7706080A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845075A1 (en) * 1978-10-17 1980-05-08 Basf Ag METHOD FOR PURIFYING ROHCAPROLACTAM
CN115253380B (en) * 2022-08-19 2023-09-01 清元智能科技研究院(湖北)有限公司 Caprolactam extraction system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH522649A (en) * 1970-04-17 1973-04-13 Buchs Metallwerk Ag Caprolactam purification - by solvent extn and crystallisation using same solvent
SU387996A1 (en) * 1971-04-30 1973-06-22 METHOD OF CLEANING CAPROLACTAM
CH564528A5 (en) * 1972-06-14 1975-07-31 Buchs Metallwerk Ag Purification of caprolactam freed from water - by counter-current multi-stage cystallisation from the melt using a solvent

Also Published As

Publication number Publication date
NL7706080A (en) 1977-12-07
DD132491A5 (en) 1978-10-04
BE855367A (en) 1977-12-05
CH626339A5 (en) 1981-11-13
BR7703572A (en) 1978-03-21
ES459328A1 (en) 1978-03-16
FR2353535A1 (en) 1977-12-30
FR2353535B1 (en) 1982-07-02
GB1535485A (en) 1978-12-13
DE2625402A1 (en) 1977-12-22

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