JPS5484571A - Recovery of 22pyrrolidone - Google Patents

Recovery of 22pyrrolidone

Info

Publication number: JPS5484571A
Authority: JP; Japan
Prior art keywords: recovery
Prior art date: 1977-12-02
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

JP14896378A

Other languages

English (en)

Inventor

Goototsushiyu Reijiyaa

Gotsudofuriido Maria Aanorudo

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.)

Stamicarbon BV

Original Assignee

Stamicarbon BV

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.)

1977-12-02

Filing date

1978-12-01

Publication date

1979-07-05

1978-12-01 Application filed by Stamicarbon BV filed Critical Stamicarbon BV

1979-07-05 Publication of JPS5484571A publication Critical patent/JPS5484571A/ja

Status Pending legal-status Critical Current

Links

238000011084 recovery Methods 0.000 title 1

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)
Pyrrole Compounds (AREA)

JP14896378A 1977-12-02 1978-12-01 Recovery of 22pyrrolidone Pending JPS5484571A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7713349A NL7713349A (nl)	1977-12-02	1977-12-02	Werkwijze voor het winnen van 2-pyrrolidon.

Publications (1)

Publication Number	Publication Date
JPS5484571A true JPS5484571A (en)	1979-07-05

Family

ID=19829678

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP14896378A Pending JPS5484571A (en)	1977-12-02	1978-12-01	Recovery of 22pyrrolidone

Country Status (6)

Country	Link
US (1)	US4216151A (ja)
EP (1)	EP0002300B1 (ja)
JP (1)	JPS5484571A (ja)
DE (1)	DE2861562D1 (ja)
IT (1)	IT1106428B (ja)
NL (1)	NL7713349A (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7909230A (nl) *	1979-12-21	1981-07-16	Stamicarbon	Werkwijze voor het bereiden van een 2-pyrrolidon.
NL8003365A (nl) *	1980-06-10	1982-01-04	Stamicarbon	Werkwijze voor het zuiveren van 2-pyrrolidon.
BE1011047A3 (nl)	1997-03-17	1999-04-06	Dsm Nv	Werkwijze voor het zuiveren van caprolactam.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB750222A (en) *	1952-09-25	1956-06-13	British Celanese	Improvements in the production of amides
FR2005035A1 (ja) *	1968-03-29	1969-12-05	Basf Ag
US4014900A (en) *	1972-02-07	1977-03-29	Pusztaszeri Stephen F	Purification of 2-pyrrolidone
US4123438A (en) *	1975-03-05	1978-10-31	Stamicarbon, B.V.	Process for preparing 2-pyrrolidones
US4036836A (en) *	1975-06-30	1977-07-19	Standard Oil Company	Process for producing 2-pyrrolidone
US3966763A (en) *	1975-06-30	1976-06-29	Standard Oil Company	Process for producing 2-pyrrolidone
US4042599A (en) *	1975-06-30	1977-08-16	The Standard Oil Company	Process for producing 2-pyrrolidone
US4050994A (en) *	1976-11-26	1977-09-27	Chevron Research Company	Recovery of 2-pyrrolidone from dilute alkaline solutions

1977
- 1977-12-02 NL NL7713349A patent/NL7713349A/xx not_active Application Discontinuation
1978
- 1978-11-28 US US05/964,790 patent/US4216151A/en not_active Expired - Lifetime
- 1978-11-29 IT IT52124/78A patent/IT1106428B/it active
- 1978-11-29 DE DE7878200321T patent/DE2861562D1/de not_active Expired
- 1978-11-29 EP EP78200321A patent/EP0002300B1/en not_active Expired
- 1978-12-01 JP JP14896378A patent/JPS5484571A/ja active Pending

Also Published As

Publication number	Publication date
NL7713349A (nl)	1979-06-06
EP0002300B1 (en)	1982-01-20
EP0002300A1 (en)	1979-06-13
IT1106428B (it)	1985-11-11
IT7852124A0 (it)	1978-11-29
DE2861562D1 (en)	1982-03-04
US4216151A (en)	1980-08-05

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