PL344860A1 - Separation of epsilon caprolactam from isomers - Google Patents

Separation of epsilon caprolactam from isomers

Info

Publication number
PL344860A1
PL344860A1 PL99344860A PL34486099A PL344860A1 PL 344860 A1 PL344860 A1 PL 344860A1 PL 99344860 A PL99344860 A PL 99344860A PL 34486099 A PL34486099 A PL 34486099A PL 344860 A1 PL344860 A1 PL 344860A1
Authority
PL
Poland
Prior art keywords
isomers
separation
epsilon caprolactam
caprolactam
epsilon
Prior art date
Application number
PL99344860A
Inventor
Jay Fingeret Miller
George Ernest Keller
Original Assignee
Union Carbide Chem Plastic
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
Priority claimed from US09/094,650 external-priority patent/US6036865A/en
Priority claimed from US09/094,651 external-priority patent/US6045703A/en
Application filed by Union Carbide Chem Plastic filed Critical Union Carbide Chem Plastic
Publication of PL344860A1 publication Critical patent/PL344860A1/en

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Hydrogenated Pyridines (AREA)
PL99344860A 1998-06-15 1999-06-14 Separation of epsilon caprolactam from isomers PL344860A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/094,650 US6036865A (en) 1998-06-15 1998-06-15 Separation processes
US09/094,651 US6045703A (en) 1998-06-15 1998-06-15 Separation processes

Publications (1)

Publication Number Publication Date
PL344860A1 true PL344860A1 (en) 2001-11-19

Family

ID=26789113

Family Applications (1)

Application Number Title Priority Date Filing Date
PL99344860A PL344860A1 (en) 1998-06-15 1999-06-14 Separation of epsilon caprolactam from isomers

Country Status (10)

Country Link
EP (1) EP1087942A1 (en)
JP (1) JP2002518372A (en)
KR (1) KR20010052680A (en)
CN (1) CN1312798A (en)
AU (1) AU5082599A (en)
BR (1) BR9911231A (en)
CA (1) CA2335114A1 (en)
ID (1) ID29234A (en)
PL (1) PL344860A1 (en)
WO (1) WO1999065873A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021192A1 (en) * 2000-05-03 2001-11-08 Basf Ag Process for the production of caprolactam
DE10021199A1 (en) 2000-05-03 2001-11-08 Basf Ag Process for the production of caprolactam
DE10253094A1 (en) 2002-11-13 2004-05-27 Basf Ag Purification of crude caprolactam comprises a three stage distillation process with feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column
DE10253095A1 (en) 2002-11-13 2004-06-17 Basf Ag Process for the purification of caprolactam
CN101070298B (en) * 2006-05-12 2012-01-25 中国石油化工股份有限公司 Method for purifying and refining epsi-caprolactam
CN102143945B (en) * 2008-09-04 2015-09-02 帝斯曼知识产权资产管理有限公司 The washing of the organic phase containing hexanolactam
US8906139B2 (en) 2009-02-06 2014-12-09 Postech Academy-Industry Foundation Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite
KR101130120B1 (en) * 2009-09-10 2012-03-28 포항공과대학교 산학협력단 A selective H2 or He separation method using natrolite-type zeolites as adsorbents and A new natrolite-type zeolite
JP2011201865A (en) * 2010-03-02 2011-10-13 Sumitomo Chemical Co Ltd METHOD FOR PRODUCING epsi-CAPROLACTAM
CN108658863A (en) * 2018-04-24 2018-10-16 河北美邦工程科技股份有限公司 A method of purifying caprolactam using fused junction crystallization
CN111574419B (en) * 2020-06-16 2021-08-27 河北美邦工程科技股份有限公司 Method for recovering and refining caprolactam monomer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB824207A (en) * 1956-03-06 1959-11-25 Basf Ag Improvements in or relating to dilactams and polyamides prepared therefrom
TW268941B (en) * 1993-08-20 1996-01-21 Sumitomo Chemical Co
JPH1135554A (en) * 1997-07-15 1999-02-09 Unitika Ltd Recovery of epsilon-caprolactam

Also Published As

Publication number Publication date
AU5082599A (en) 2000-01-05
CN1312798A (en) 2001-09-12
CA2335114A1 (en) 1999-12-23
KR20010052680A (en) 2001-06-25
EP1087942A1 (en) 2001-04-04
JP2002518372A (en) 2002-06-25
WO1999065873A1 (en) 1999-12-23
ID29234A (en) 2001-08-16
BR9911231A (en) 2001-03-06

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