BE794622A - Procede de purification du caprolactame - Google Patents

Procede de purification du caprolactame

Info

Publication number
BE794622A
BE794622A BE794622DA BE794622A BE 794622 A BE794622 A BE 794622A BE 794622D A BE794622D A BE 794622DA BE 794622 A BE794622 A BE 794622A
Authority
BE
Belgium
Prior art keywords
purification process
caprolactam purification
caprolactam
purification
Prior art date
Application number
Other languages
English (en)
Original Assignee
Bayer Ag
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.)
Publication date
Publication of BE794622A publication Critical patent/BE794622A/fr

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)
  • Extraction Or Liquid Replacement (AREA)
  • Pyrrole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE794622D 1972-01-28 Procede de purification du caprolactame BE794622A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2203945A DE2203945B2 (de) 1972-01-28 1972-01-28 Verfahren zur Reinigung von e -Caprolactam

Publications (1)

Publication Number Publication Date
BE794622A true BE794622A (fr) 1973-07-26

Family

ID=5834269

Family Applications (1)

Application Number Title Priority Date Filing Date
BE794622D BE794622A (fr) 1972-01-28 Procede de purification du caprolactame

Country Status (11)

Country Link
US (1) US3899485A (fr)
JP (1) JPS5752328B2 (fr)
BE (1) BE794622A (fr)
CA (1) CA1038384A (fr)
CH (1) CH576441A5 (fr)
DD (1) DD104522A5 (fr)
DE (1) DE2203945B2 (fr)
FR (1) FR2169364B1 (fr)
GB (1) GB1390294A (fr)
IT (1) IT977064B (fr)
NL (1) NL7301105A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW215084B (en) * 1992-04-17 1993-10-21 Sumitomo Chemical Co Process for producing a high purity caprolactam
US6036865A (en) * 1998-06-15 2000-03-14 Union Carbide Chemicals & Plastics Technology Corporation Separation processes
US6045703A (en) * 1998-06-15 2000-04-04 Union Carbide Chemicals & Plastics Technology Corporation Separation processes
JP4182273B2 (ja) * 2000-06-27 2008-11-19 住友化学株式会社 ε−カプロラクタムの製造方法
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof
US20070155987A1 (en) * 2006-01-04 2007-07-05 O'meadhra Ruairi S Oxidative digestion with optimized agitation
US7772424B2 (en) * 2006-03-01 2010-08-10 Eastman Chemical Company Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion
US20070208194A1 (en) * 2006-03-01 2007-09-06 Woodruff Thomas E Oxidation system with sidedraw secondary reactor
US7501537B2 (en) * 2006-03-01 2009-03-10 Eastman Chemical Company Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange
US7816556B2 (en) * 2006-03-01 2010-10-19 Eastman Chemical Company Polycarboxylic acid production system employing enhanced multistage oxidative digestion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758991A (en) * 1956-08-14 Hvvevvtofry
US2313026A (en) * 1939-02-13 1943-03-02 Schlack Paul Process for the manufacture of lactams from oximes of cyclic ketones
CH547805A (de) * 1970-10-01 1974-04-11 Inventa Ag Verfahren zur reinigung von lactamen.
CH547286A (de) * 1971-01-06 1974-03-29 Inventa Ag Verfahren zur reinigung von lactamen.

Also Published As

Publication number Publication date
US3899485A (en) 1975-08-12
DE2203945C3 (fr) 1980-11-20
CA1038384A (fr) 1978-09-12
NL7301105A (fr) 1973-07-31
JPS5752328B2 (fr) 1982-11-06
FR2169364B1 (fr) 1978-03-03
DE2203945A1 (de) 1973-08-02
FR2169364A1 (fr) 1973-09-07
DD104522A5 (fr) 1974-03-12
DE2203945B2 (de) 1980-03-27
IT977064B (it) 1974-09-10
CH576441A5 (fr) 1976-06-15
GB1390294A (en) 1975-04-09
JPS4885586A (fr) 1973-11-13

Similar Documents

Publication Publication Date Title
BE795913A (fr) Procede de preparation de chlorosilanes
BE804181R (fr) Procede de nettoyage
BE776978A (fr) Procede de purification de caprolactame
BE794622A (fr) Procede de purification du caprolactame
FR1583920A (fr) Procede de purification de solutions de nickel
BE796813A (fr) Procede de preparation de perfluoroalkylesters
BE776979A (fr) Procede de purification de lactames
BE773264A (fr) Procede de purification de lactames
BE791904A (fr) Procede de deshydrochloration
BE803709A (fr) Procede de decomposition de silicates
BE806634A (fr) Procede de preparation du t-butanol
BE832001A (fr) Procede de purification de caprolactame
BE747440A (fr) Procede de purification de melanges
BE786564A (fr) Procede de purification des gamma globulines
BE799659A (fr) Procede de purification de la caprolactame,
BE786364A (fr) Procede de purification du propylene
FR2285363A1 (fr) Procede de purification du pentachlorophenol
BE766138A (fr) Procede de purification de caprolactame
BE803434A (fr) Procede de separation
BE794066A (fr) Procede de preparation de 2-mercapto-benzimidazol
BE794823A (fr) Procede de purification de la 1-nitroanthraquinone
BE786176A (fr) Procede de recuperation de la caprolactame
BE796455A (fr) Procede de purification de dinitriles
BE751843A (fr) Procede de purification de solutions de cadmium
BE808664A (fr) Procede de conversion

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BAYER A.G.

Effective date: 19840126