AU6856598A - Process for recovering caprolactam from a neutralized rearrangement mixture - Google Patents

Process for recovering caprolactam from a neutralized rearrangement mixture

Info

Publication number: AU6856598A
Authority: AU; Australia
Prior art keywords: rearrangement mixture; recovering caprolactam; neutralized rearrangement; neutralized; caprolactam
Prior art date: 1997-04-29
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.): Abandoned

Application number

AU68565/98A

Inventor

Louise Annemarie Groot Zevert

Joannes Albertus Wilhelmus Lemmens

Antonius Jacobus Franciscus Simons

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.)

Koninklijke DSM NV

Original Assignee

DSM NV

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.)

1997-04-29

Filing date

1998-04-20

Publication date

1998-11-24

1998-04-20 Application filed by DSM NV filed Critical DSM NV

1998-11-24 Publication of AU6856598A publication Critical patent/AU6856598A/en

Status Abandoned legal-status Critical Current

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)
Extraction Or Liquid Replacement (AREA)

AU68565/98A 1997-04-29 1998-04-20 Process for recovering caprolactam from a neutralized rearrangement mixture Abandoned AU6856598A (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
NL1005927		1997-04-29
NL1005927A NL1005927C2 (en)	1997-04-29	1997-04-29	Method for recovering caprolactam from a neutralized rearrangement mixture.
PCT/NL1998/000216 WO1998049140A1 (en)	1997-04-29	1998-04-20	Process for recovering caprolactam from a neutralized rearrangement mixture

Publications (1)

Publication Number	Publication Date
AU6856598A true AU6856598A (en)	1998-11-24

Family

ID=19764875

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU68565/98A Abandoned AU6856598A (en)	1997-04-29	1998-04-20	Process for recovering caprolactam from a neutralized rearrangement mixture

Country Status (16)

Country	Link
EP (1)	EP0980356A1 (en)
JP (1)	JP2001522371A (en)
KR (1)	KR20010020300A (en)
CN (1)	CN1253546A (en)
AU (1)	AU6856598A (en)
BG (1)	BG103833A (en)
BR (1)	BR9809420A (en)
CA (1)	CA2288156A1 (en)
CO (1)	CO5040159A1 (en)
EA (1)	EA199900982A1 (en)
ID (1)	ID23781A (en)
NL (1)	NL1005927C2 (en)
PL (1)	PL336476A1 (en)
SK (1)	SK148799A3 (en)
TW (1)	TW408109B (en)
WO (1)	WO1998049140A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ES2359791T3 (en) *	2001-03-01	2011-05-26	Dsm Ip Assets B.V.	PROCESS TO RECOVER AND PURIFY CAPROLACTAMA FROM AN ORGANIC SOLVENT.
TW200951112A (en)	2008-06-13	2009-12-16	China Petrochemical Dev Corp	System of recycle caprolactam form rearrangement mixture and method thereof
CN101613311B (en) *	2008-06-25	2013-01-02	中国石油化学工业开发股份有限公司	Systems and methods for recovering caprolactam from rearrangement mixtures
WO2011073400A2 (en)	2009-12-18	2011-06-23	Dsm Ip Assets B.V.	Caprolactam recovery with membrane treatment
CN102212033B (en) *	2010-04-07	2013-02-27	中国科学院过程工程研究所	A method for reducing the amount of caprolactam entrained in ammonium sulfate crystals
CN102234248A (en) *	2010-04-23	2011-11-09	中国石油化工股份有限公司	Impurity extraction method for caprolactam production
CN105408313B (en) *	2013-07-26	2018-11-09	Cap Iii 有限公司	A kind of continuation method of commercial scale recycling caprolactam and crystalline sulfuric acid ammonium
CN106316955A (en) *	2016-10-28	2017-01-11	湖北三宁化工股份有限公司	Refining device for high-purity caprolactam and purifying method
CN108341763B (en) *	2018-04-24	2020-12-01	河北美邦工程科技股份有限公司	Caprolactam crystallization and purification method
CN111471015B (en) *	2019-01-24	2024-01-30	中国石油化工股份有限公司	Device and method for recycling caprolactam in benzene distillation residual liquid
CN109942492A (en) *	2019-04-11	2019-06-28	江苏凌瑞化工科技有限公司	A kind of caprolactam refining technique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1031308B (en) *	1956-11-10	1958-06-04	Bayer Ag	Process for the production of pure caprolactam from the neutralized reaction mixture of the Beckmann rearrangement of cyclohexanone oxime
DE3635363A1 (en) *	1986-10-17	1988-04-21	Basf Ag	METHOD FOR NEUTRALIZING REACTION MIXTURES OBTAINED BY BECKMANN'S RESTORATION OF CYCLOHEXANONOXIM
JP2782919B2 (en) *	1990-06-12	1998-08-06	宇部興産株式会社	Method for purifying lactam-containing organic solution
BE1007298A3 (en) *	1993-07-19	1995-05-09	Dsm Nv	PROCESS FOR THE PURIFICATION OF A WATER-EPSILON-caprolactam mixture.

1997
- 1997-04-29 NL NL1005927A patent/NL1005927C2/en not_active IP Right Cessation
1998
- 1998-04-20 PL PL98336476A patent/PL336476A1/en unknown
- 1998-04-20 WO PCT/NL1998/000216 patent/WO1998049140A1/en not_active Application Discontinuation
- 1998-04-20 AU AU68565/98A patent/AU6856598A/en not_active Abandoned
- 1998-04-20 SK SK1487-99A patent/SK148799A3/en unknown
- 1998-04-20 BR BR9809420-3A patent/BR9809420A/en not_active IP Right Cessation
- 1998-04-20 EA EA199900982A patent/EA199900982A1/en unknown
- 1998-04-20 EP EP98914149A patent/EP0980356A1/en not_active Withdrawn
- 1998-04-20 JP JP54684498A patent/JP2001522371A/en active Pending
- 1998-04-20 CN CN98804541A patent/CN1253546A/en active Pending
- 1998-04-20 KR KR1019997009904A patent/KR20010020300A/en not_active Application Discontinuation
- 1998-04-20 ID IDW991289A patent/ID23781A/en unknown
- 1998-04-20 CA CA002288156A patent/CA2288156A1/en not_active Abandoned
- 1998-04-21 TW TW087106075A patent/TW408109B/en not_active IP Right Cessation
- 1998-04-27 CO CO98023022A patent/CO5040159A1/en unknown
1999
- 1999-10-25 BG BG103833A patent/BG103833A/en unknown

Also Published As

Publication number	Publication date
CN1253546A (en)	2000-05-17
JP2001522371A (en)	2001-11-13
CA2288156A1 (en)	1998-11-05
NL1005927C2 (en)	1998-11-02
WO1998049140A1 (en)	1998-11-05
PL336476A1 (en)	2000-06-19
EP0980356A1 (en)	2000-02-23
KR20010020300A (en)	2001-03-15
EA199900982A1 (en)	2000-06-26
BG103833A (en)	2000-06-30
CO5040159A1 (en)	2001-05-29
BR9809420A (en)	2000-06-13
ID23781A (en)	2000-05-11
TW408109B (en)	2000-10-11
SK148799A3 (en)	2000-05-16

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Legal Events

Date	Code	Title	Description
2000-02-03	MK6	Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase