IT1021557B - Procedimento per il ricupero di epsilon caprolattame - Google Patents

Procedimento per il ricupero di epsilon caprolattame

Info

Publication number
IT1021557B
IT1021557B IT51490/74A IT5149074A IT1021557B IT 1021557 B IT1021557 B IT 1021557B IT 51490/74 A IT51490/74 A IT 51490/74A IT 5149074 A IT5149074 A IT 5149074A IT 1021557 B IT1021557 B IT 1021557B
Authority
IT
Italy
Prior art keywords
caprolactame
epsilon
recovery
procedure
epsilon caprolactame
Prior art date
Application number
IT51490/74A
Other languages
English (en)
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Application granted granted Critical
Publication of IT1021557B publication Critical patent/IT1021557B/it

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)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Polyamides (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Pyrrole Compounds (AREA)
IT51490/74A 1973-06-12 1974-06-11 Procedimento per il ricupero di epsilon caprolattame IT1021557B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7308100A NL7308100A (it) 1973-06-12 1973-06-12

Publications (1)

Publication Number Publication Date
IT1021557B true IT1021557B (it) 1978-02-20

Family

ID=19819044

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51490/74A IT1021557B (it) 1973-06-12 1974-06-11 Procedimento per il ricupero di epsilon caprolattame

Country Status (13)

Country Link
US (1) US3944543A (it)
JP (1) JPS5052079A (it)
AR (1) AR203484A1 (it)
BE (1) BE816209A (it)
CS (1) CS183740B2 (it)
DE (1) DE2428203A1 (it)
ES (1) ES427168A1 (it)
FR (1) FR2233321B1 (it)
GB (1) GB1409522A (it)
IN (1) IN140825B (it)
IT (1) IT1021557B (it)
NL (1) NL7308100A (it)
TR (1) TR18304A (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641454A1 (de) * 1976-09-15 1978-03-23 Bayer Ag Verfahren zur reinigung von epsilon-caprolactam
US4767503A (en) * 1983-08-29 1988-08-30 Allied Corporation Removal of light impurities from caprolactam by distillation with water
JP2649736B2 (ja) * 1990-06-22 1997-09-03 宇部興産株式会社 ラクタム含有有機溶液の精製法
JP4351908B2 (ja) * 2001-08-27 2009-10-28 ディーエスエム アイピー アセッツ ビー．ブイ． 減圧においてアルカリ性のカプロラクタム生成物を蒸留する方法
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof
TW201114740A (en) * 2009-10-30 2011-05-01 China Petrochemical Dev Corp Taipei Taiwan Method of separating amide from amino acid ionic solution
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***和方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758991A (en) * 1956-08-14 Hvvevvtofry
US2221369A (en) * 1940-11-12 Process foe producing lactams
FR1095772A (fr) * 1953-03-19 1955-06-06 Stamicarbon Procédé pour épurer des lactames
NL144600B (nl) * 1964-03-07 1975-01-15 Stamicarbon Afscheiding van lactamen uit een sterk zwavelzuur milieu.
CA989830A (en) * 1971-05-07 1976-05-25 Abraham H. De Rooij Process for preparing and recovering lactams
NL164028C (nl) * 1971-05-07 1980-11-17 Stamicarbon Werkwijze voor de afscheiding van lactamen.

Also Published As

Publication number Publication date
AR203484A1 (es) 1975-09-15
DE2428203A1 (de) 1975-01-09
BE816209A (fr) 1974-12-12
IN140825B (it) 1976-12-25
NL7308100A (it) 1974-12-16
JPS5052079A (it) 1975-05-09
CS183740B2 (en) 1978-07-31
ES427168A1 (es) 1976-07-16
FR2233321A1 (it) 1975-01-10
GB1409522A (en) 1975-10-08
FR2233321B1 (it) 1978-01-13
TR18304A (tr) 1977-01-07
US3944543A (en) 1976-03-16

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