FR2356640A1 - Procede de production d'e-caprolactame a partir d'un melange reactionnel d'e-caprolactame-acide sulfurique - Google Patents

Procede de production d'e-caprolactame a partir d'un melange reactionnel d'e-caprolactame-acide sulfurique

Info

Publication number
FR2356640A1
FR2356640A1 FR7719412A FR7719412A FR2356640A1 FR 2356640 A1 FR2356640 A1 FR 2356640A1 FR 7719412 A FR7719412 A FR 7719412A FR 7719412 A FR7719412 A FR 7719412A FR 2356640 A1 FR2356640 A1 FR 2356640A1
Authority
FR
France
Prior art keywords
sulfuric acid
caprolactam
mixture
production
partially bound
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7719412A
Other languages
English (en)
Other versions
FR2356640B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 BV filed Critical Stamicarbon BV
Publication of FR2356640A1 publication Critical patent/FR2356640A1/fr
Application granted granted Critical
Publication of FR2356640B1 publication Critical patent/FR2356640B1/fr
Granted legal-status Critical Current

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)
  • Processing Of Solid Wastes (AREA)
  • Physical Water Treatments (AREA)

Abstract

L'invention a pour objet la préparation de caprolactame. L'invention concerne l'obtention de caprolactame à partir d'un mélange de caprolactame-acide sulfurique en liant l'acide sulfurique partiellement sous forme de sel d'ammonium et en séparant par extraction le lactame de l'acide sulfurique partiellement lie. Une partie de l'acide sulfurique partiellement lié est soumise à une décomposition thermique avec formation d'un mélange gazeux contenant de l'ammoniac et de l'anhydride sulfureux. Ce mélange est mis en contact avec la partie restante de l'acide sulfurique partiellement lié, avec combinaison de l'ammoniac à l'acide sulfurique et dégagement de l'anhydride sulfureux. Le sulfate ou hydrogéno-sulfate d'ammonium ainsi obtenu sert à la liaison partielle de l'acide sulfurique dans le mélange réactionnel. Suivant la méthode décrite on a obtenu un procédé pour la fabrication de caprolactamate sans formation de produit secondaire.
FR7719412A 1976-06-28 1977-06-24 Procede de production d'e-caprolactame a partir d'un melange reactionnel d'e-caprolactame-acide sulfurique Granted FR2356640A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7607047A NL7607047A (nl) 1976-06-28 1976-06-28 Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactam-zwavelzuur- -reactiemengsel.

Publications (2)

Publication Number Publication Date
FR2356640A1 true FR2356640A1 (fr) 1978-01-27
FR2356640B1 FR2356640B1 (fr) 1982-07-16

Family

ID=19826462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7719412A Granted FR2356640A1 (fr) 1976-06-28 1977-06-24 Procede de production d'e-caprolactame a partir d'un melange reactionnel d'e-caprolactame-acide sulfurique

Country Status (15)

Country Link
US (1) US4140685A (fr)
JP (1) JPS6047254B2 (fr)
AR (1) AR216766A1 (fr)
BE (1) BE856019A (fr)
BR (1) BR7704190A (fr)
CA (1) CA1085836A (fr)
CH (1) CH629784A5 (fr)
DE (1) DE2728606A1 (fr)
ES (1) ES460035A1 (fr)
FR (1) FR2356640A1 (fr)
GB (1) GB1522584A (fr)
IT (1) IT1079706B (fr)
MX (1) MX4280E (fr)
NL (1) NL7607047A (fr)
SU (1) SU710517A3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7700882A (nl) * 1977-01-28 1978-08-01 Stamicarbon Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuurreac- tiemengsel.
US5900482A (en) * 1995-07-20 1999-05-04 Mitsubishi Chemical Corporation Process for the preparation of ε-caprolactam
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof
KR102071255B1 (ko) 2017-03-31 2020-01-31 센주긴조쿠고교 가부시키가이샤 땜납 합금, 솔더 페이스트 및 땜납 조인트

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2141794A1 (fr) * 1971-06-18 1973-01-26 Zieren Chemiebau Gmbh Dr A
FR2141795A1 (fr) * 1971-06-18 1973-01-26 Zieren Chemiebau Gmbh Dr A

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL282684A (fr) * 1961-08-30 1900-01-01
US3852273A (en) * 1971-05-07 1974-12-03 Stamicarbon Process for preparing and recovering lactams
NL164028C (nl) * 1971-05-07 1980-11-17 Stamicarbon Werkwijze voor de afscheiding van lactamen.
BE792559A (fr) * 1971-12-11 1973-06-12 Stamicarbon Procede pour la separation de lactames
US3859278A (en) * 1972-12-11 1975-01-07 Stamicarbon Process for separating lactams

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2141794A1 (fr) * 1971-06-18 1973-01-26 Zieren Chemiebau Gmbh Dr A
FR2141795A1 (fr) * 1971-06-18 1973-01-26 Zieren Chemiebau Gmbh Dr A

Also Published As

Publication number Publication date
JPS6047254B2 (ja) 1985-10-21
FR2356640B1 (fr) 1982-07-16
CH629784A5 (de) 1982-05-14
BE856019A (nl) 1977-12-23
IT1079706B (it) 1985-05-13
SU710517A3 (ru) 1980-01-15
GB1522584A (en) 1978-08-23
NL7607047A (nl) 1977-12-30
MX4280E (es) 1982-03-11
DE2728606A1 (de) 1977-12-29
JPS532490A (en) 1978-01-11
BR7704190A (pt) 1978-03-21
ES460035A1 (es) 1978-05-01
CA1085836A (fr) 1980-09-16
US4140685A (en) 1979-02-20
AR216766A1 (es) 1980-01-31

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