ES459328A1 - Procedimiento para la purificacion de e-caprolactama. - Google Patents

Procedimiento para la purificacion de e-caprolactama.

Info

Publication number
ES459328A1
ES459328A1 ES459328A ES459328A ES459328A1 ES 459328 A1 ES459328 A1 ES 459328A1 ES 459328 A ES459328 A ES 459328A ES 459328 A ES459328 A ES 459328A ES 459328 A1 ES459328 A1 ES 459328A1
Authority
ES
Spain
Prior art keywords
caprolactam
epsilon
isolation
toluene
lactam
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.)
Expired
Application number
ES459328A
Other languages
English (en)
Spanish (es)
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 ES459328A1 publication Critical patent/ES459328A1/es
Expired 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)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrrole Compounds (AREA)
ES459328A 1976-06-05 1977-05-31 Procedimiento para la purificacion de e-caprolactama. Expired ES459328A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762625402 DE2625402A1 (de) 1976-06-05 1976-06-05 Reinigung von epsilon-caprolactam

Publications (1)

Publication Number Publication Date
ES459328A1 true ES459328A1 (es) 1978-03-16

Family

ID=5979933

Family Applications (1)

Application Number Title Priority Date Filing Date
ES459328A Expired ES459328A1 (es) 1976-06-05 1977-05-31 Procedimiento para la purificacion de e-caprolactama.

Country Status (10)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845075A1 (de) * 1978-10-17 1980-05-08 Basf Ag Verfahren zur reinigung von rohcaprolactam
CN115253380B (zh) * 2022-08-19 2023-09-01 清元智能科技研究院(湖北)有限公司 一种己内酰胺萃取系统和方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH522649A (de) * 1970-04-17 1973-04-13 Buchs Metallwerk Ag Verfahren zur Reinigung von Caprolactam
SU387996A1 (ru) * 1971-04-30 1973-06-22 Способ очистки капролактама
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
DE2625402A1 (de) 1977-12-22
DD132491A5 (de) 1978-10-04
BR7703572A (pt) 1978-03-21
CH626339A5 (en) 1981-11-13
FR2353535B1 (fr) 1982-07-02
NL7706080A (nl) 1977-12-07
FR2353535A1 (fr) 1977-12-30
JPS52151186A (en) 1977-12-15
GB1535485A (en) 1978-12-13
BE855367A (fr) 1977-12-05

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990601