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PL336476A1 - Method of recovering caprolactam from neutralised regrouping mixture - Google Patents

Method of recovering caprolactam from neutralised regrouping mixture

Info

Publication number
PL336476A1
PL336476A1 PL98336476A PL33647698A PL336476A1 PL 336476 A1 PL336476 A1 PL 336476A1 PL 98336476 A PL98336476 A PL 98336476A PL 33647698 A PL33647698 A PL 33647698A PL 336476 A1 PL336476 A1 PL 336476A1
Authority
PL
Poland
Prior art keywords
regrouping
neutralised
mixture
recovering caprolactam
caprolactam
Prior art date
Application number
PL98336476A
Other languages
English (en)
Inventor
Joannes Albertus Wilhe Lemmens
Antonius Jacobus Franci Simons
Zevert Louise Annemarie Groot
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.)
Filing date
Publication date
Application filed by Dsm Nv filed Critical Dsm Nv
Publication of PL336476A1 publication Critical patent/PL336476A1/xx

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)
  • Extraction Or Liquid Replacement (AREA)
PL98336476A 1997-04-29 1998-04-20 Method of recovering caprolactam from neutralised regrouping mixture PL336476A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005927A NL1005927C2 (nl) 1997-04-29 1997-04-29 Werkwijze voor het winnen van caprolactam uit een geneutraliseerd omlegmengsel.
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
PL336476A1 true PL336476A1 (en) 2000-06-19

Family

ID=19764875

Family Applications (1)

Application Number Title Priority Date Filing Date
PL98336476A PL336476A1 (en) 1997-04-29 1998-04-20 Method of recovering caprolactam from neutralised regrouping mixture

Country Status (16)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002070475A1 (en) * 2001-03-01 2002-09-12 Dsm Ip Assets B.V. Process for recovering and purifying caprolactam 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 (zh) * 2008-06-25 2013-01-02 中国石油化学工业开发股份有限公司 从重排混合物中回收己内酰胺的系统和方法
US20130211072A1 (en) 2009-12-18 2013-08-15 Maria Elena Avramescu Caprolactam recovery with membrane treatment
CN102212033B (zh) * 2010-04-07 2013-02-27 中国科学院过程工程研究所 一种降低硫酸铵晶体夹带己内酰胺量的方法
CN102234248A (zh) * 2010-04-23 2011-11-09 中国石油化工股份有限公司 一种己内酰胺杂质萃取的方法
WO2015010885A1 (en) * 2013-07-26 2015-01-29 Dsm Ip Assets B.V. Continuous process for recovery of caprolactam and crystalline ammonium sulfate
CN106316955A (zh) * 2016-10-28 2017-01-11 湖北三宁化工股份有限公司 一种高纯度己内酰胺精制装置和净化方法
CN108341763B (zh) * 2018-04-24 2020-12-01 河北美邦工程科技股份有限公司 一种己内酰胺结晶纯化方法
CN111471015B (zh) * 2019-01-24 2024-01-30 中国石油化工股份有限公司 一种回收苯蒸残液中己内酰胺的装置和方法
CN109942492A (zh) * 2019-04-11 2019-06-28 江苏凌瑞化工科技有限公司 一种己内酰胺精制工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1031308B (de) * 1956-11-10 1958-06-04 Bayer Ag Verfahren zur Gewinnung von reinem Caprolactam aus dem neutralisierten Reaktionsgemisch der Beckmannschen Umlagerung von Cyclohexanonoxim
DE3635363A1 (de) * 1986-10-17 1988-04-21 Basf Ag Verfahren zur neutralisation von reaktionsgemischen, die durch beckmann'sche umlagerung von cyclohexanonoxim erhalten worden sind
JP2782919B2 (ja) * 1990-06-12 1998-08-06 宇部興産株式会社 ラクタム含有有機溶液の精製方法
BE1007298A3 (nl) * 1993-07-19 1995-05-09 Dsm Nv Werkwijze voor het zuiveren van een water-epsilon-caprolactam mengsel.

Also Published As

Publication number Publication date
BG103833A (en) 2000-06-30
AU6856598A (en) 1998-11-24
NL1005927C2 (nl) 1998-11-02
EP0980356A1 (en) 2000-02-23
CN1253546A (zh) 2000-05-17
BR9809420A (pt) 2000-06-13
CA2288156A1 (en) 1998-11-05
KR20010020300A (ko) 2001-03-15
SK148799A3 (en) 2000-05-16
CO5040159A1 (es) 2001-05-29
JP2001522371A (ja) 2001-11-13
ID23781A (id) 2000-05-11
EA199900982A1 (ru) 2000-06-26
WO1998049140A1 (en) 1998-11-05
TW408109B (en) 2000-10-11

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