CH602632A5 - - Google Patents

Info

Publication number
CH602632A5
CH602632A5 CH940773A CH940773A CH602632A5 CH 602632 A5 CH602632 A5 CH 602632A5 CH 940773 A CH940773 A CH 940773A CH 940773 A CH940773 A CH 940773A CH 602632 A5 CH602632 A5 CH 602632A5
Authority
CH
Switzerland
Application number
CH940773A
Inventor
Roberto Mattone
Giancarlo Sioli
Luigi Giuffre
Original Assignee
Snia Viscosa
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 Snia Viscosa filed Critical Snia Viscosa
Publication of CH602632A5 publication Critical patent/CH602632A5/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Pyrrole Compounds (AREA)
  • Polyamides (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Separation By Low-Temperature Treatments (AREA)
CH940773A 1972-06-28 1973-06-27 CH602632A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT26384/72A IT956940B (it) 1972-06-28 1972-06-28 Procedimento per l estrazione di lattami da miscele acide di rea zione

Publications (1)

Publication Number Publication Date
CH602632A5 true CH602632A5 (fr) 1978-07-31

Family

ID=11219370

Family Applications (1)

Application Number Title Priority Date Filing Date
CH940773A CH602632A5 (fr) 1972-06-28 1973-06-27

Country Status (23)

Country Link
US (1) US3912721A (fr)
JP (1) JPS5544067B2 (fr)
AR (1) AR197617A1 (fr)
AT (1) AT326676B (fr)
AU (1) AU475133B2 (fr)
BE (1) BE801610A (fr)
BR (1) BR7304800D0 (fr)
CA (1) CA1018524A (fr)
CH (1) CH602632A5 (fr)
DE (1) DE2332973A1 (fr)
DK (1) DK133150C (fr)
ES (1) ES416415A1 (fr)
FR (1) FR2190821B1 (fr)
GB (1) GB1430006A (fr)
IE (1) IE37857B1 (fr)
IL (1) IL42677A (fr)
IN (1) IN139738B (fr)
IT (1) IT956940B (fr)
NL (1) NL7309031A (fr)
NO (1) NO143220C (fr)
SU (1) SU557754A3 (fr)
TR (1) TR17560A (fr)
ZA (1) ZA734342B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013640A (en) * 1974-04-11 1977-03-22 Union Carbide Corporation Process for the recovery of amides
DE2926279A1 (de) * 1979-06-29 1981-01-08 Basf Ag Verfahren zur reinigung von caprolactam
US4328154A (en) * 1980-11-03 1982-05-04 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the purification of raw caprolactam
DE3834904A1 (de) * 1988-10-13 1990-04-19 Hoechst Ag Verfahren zur extraktion von n-methyl-pyrrolidon-(2)
NL1000781C2 (nl) * 1995-07-12 1997-01-14 Dsm Nv Werkwijze voor het winnen van caprolactam uit nylon-6 bevattende afval.
TW420662B (en) 1996-02-17 2001-02-01 Du Pont Recovery of <epsilon>-caprolactam
EP0826665A1 (fr) * 1996-09-02 1998-03-04 Dsm N.V. Récupération d'epsilon-caprolactam de mélanges aquex
BE1011047A3 (nl) 1997-03-17 1999-04-06 Dsm Nv Werkwijze voor het zuiveren van caprolactam.
TW201114740A (en) * 2009-10-30 2011-05-01 China Petrochemical Dev Corp Taipei Taiwan Method of separating amide from amino acid ionic solution
CN102335573B (zh) * 2010-07-23 2013-09-11 中国石油化工股份有限公司 一种己内酰胺苛化装置
TWI414508B (zh) 2011-01-17 2013-11-11 China Petrochemical Dev Corp Taipei Taiwan A catalyst composition and a method for preparing an amide using the composition
RU2458053C1 (ru) * 2011-06-06 2012-08-10 Открытое акционерное общество "КуйбышевАзот" Способ управления экстракцией капролактама
WO2015054091A1 (fr) * 2013-10-07 2015-04-16 Segetis, Inc. Procédé de préparation d'acide lévulinique
CN104262252A (zh) * 2014-10-21 2015-01-07 湖南百利工程科技股份有限公司 一种从己内酰胺硫酸酯中分离己内酰胺和硫酸的方法
CN104387322A (zh) * 2014-10-21 2015-03-04 湖南百利工程科技股份有限公司 一种低副产硫酸铵的己内酰胺的制备方法
CN104910071A (zh) * 2015-05-08 2015-09-16 河北美邦工程科技股份有限公司 一种制备己内酰胺的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH78A (de) * 1889-01-18 August Graemiger Anton Apparat zum Färben, Waschen, Bleichen u. s. w., von Garn in aufgewickeltem Zustande
CH446342A (de) * 1963-11-29 1967-11-15 Bayer Ag Verfahren zum Herstellen reiner Lactame

Also Published As

Publication number Publication date
ES416415A1 (es) 1976-03-01
AR197617A1 (es) 1974-04-23
BR7304800D0 (pt) 1974-09-05
ZA734342B (en) 1974-05-29
IE37857B1 (en) 1977-10-26
CA1018524A (fr) 1977-10-04
IL42677A (en) 1976-06-30
JPS5544067B2 (fr) 1980-11-10
NO143220C (no) 1981-01-02
AT326676B (de) 1975-12-29
ATA569973A (de) 1975-03-15
IT956940B (it) 1973-10-10
GB1430006A (en) 1976-03-31
IE37857L (en) 1973-12-28
US3912721A (en) 1975-10-14
FR2190821A1 (fr) 1974-02-01
NL7309031A (fr) 1974-01-02
DK133150B (da) 1976-03-29
BE801610A (fr) 1973-12-28
NO143220B (no) 1980-09-22
TR17560A (tr) 1975-07-23
AU475133B2 (en) 1976-08-12
SU557754A3 (ru) 1977-05-05
DK133150C (da) 1976-08-30
IN139738B (fr) 1976-07-24
AU5744973A (en) 1975-01-09
DE2332973A1 (de) 1974-01-10
JPS4955683A (fr) 1974-05-30
FR2190821B1 (fr) 1978-12-01

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Legal Events

Date Code Title Description
PL Patent ceased