JPS5484525A - Continuous preparation of -aminoalkanonitrile - Google Patents
Continuous preparation of -aminoalkanonitrileInfo
- Publication number
- JPS5484525A JPS5484525A JP15067477A JP15067477A JPS5484525A JP S5484525 A JPS5484525 A JP S5484525A JP 15067477 A JP15067477 A JP 15067477A JP 15067477 A JP15067477 A JP 15067477A JP S5484525 A JPS5484525 A JP S5484525A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- continuously
- lactam
- liquid
- reaction vessel
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the title compound, useful as a reagent, etc., under comparatively low pressure, in high efficiency, by continuously taking out the gaseous product, formed by the high temp. gas-liquid reaction of a liquid lactam with NH3 gas introduced continuously into the lactam, from the reaction vessel.
CONSTITUTION: A monomer, an oligomer, a polymer of lactam, e.g. ε-caprolactam, λ-laurolactam, nylon chips, etc., or their mixture, is maintained in liquid phase in the reaction vessel, and subjected to the gas-liquid reaction at 280W550°C under normal pressure-100 Kg/cm2 while supplying NH3 gas continuously into the reaction vessel to form a product containing ω-aminoalkanonitrile. The product is continuously taken out of the vessel in gas phase to give the objective compound.
EFFECT: The objective compound can be obtained in high yield using a small amount of NH3, minimizing side-reactions and displacing the equilibrium to the preferable direction.
USE: An intermediate of an alkylene diamine which is a raw material of nylon.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15067477A JPS5484525A (en) | 1977-12-16 | 1977-12-16 | Continuous preparation of -aminoalkanonitrile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15067477A JPS5484525A (en) | 1977-12-16 | 1977-12-16 | Continuous preparation of -aminoalkanonitrile |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5484525A true JPS5484525A (en) | 1979-07-05 |
Family
ID=15501984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15067477A Pending JPS5484525A (en) | 1977-12-16 | 1977-12-16 | Continuous preparation of -aminoalkanonitrile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5484525A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302756A (en) * | 1992-12-23 | 1994-04-12 | E. I. Du Pont De Nemours And Company | Ammonolysis of nylon |
US5395974A (en) * | 1994-01-21 | 1995-03-07 | E. I. Du Pont De Nemours And Company | Lewis acid catalyzed ammonolysis of nylon |
US5532404A (en) * | 1994-05-27 | 1996-07-02 | E. I. Du Pont De Nemours And Company | Monomer recovery process for contaminated polymers |
EP0737666A1 (en) * | 1995-04-14 | 1996-10-16 | Dsm N.V. | Depolymerization of polyamides |
US5710315A (en) * | 1994-05-27 | 1998-01-20 | E. I. Du Pont De Nemours And Company | Monomer recovery process for contaminated polymers |
-
1977
- 1977-12-16 JP JP15067477A patent/JPS5484525A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302756A (en) * | 1992-12-23 | 1994-04-12 | E. I. Du Pont De Nemours And Company | Ammonolysis of nylon |
WO1994014752A1 (en) * | 1992-12-23 | 1994-07-07 | E.I. Du Pont De Nemours And Company | Ammonolysis of nylon |
EP0675871A1 (en) * | 1992-12-23 | 1995-10-11 | Du Pont | Ammonolysis of nylon. |
US5395974A (en) * | 1994-01-21 | 1995-03-07 | E. I. Du Pont De Nemours And Company | Lewis acid catalyzed ammonolysis of nylon |
WO1995019950A1 (en) * | 1994-01-21 | 1995-07-27 | E.I. Du Pont De Nemours And Company | Lewis acid catalyzed ammonolysis of nylon |
US5532404A (en) * | 1994-05-27 | 1996-07-02 | E. I. Du Pont De Nemours And Company | Monomer recovery process for contaminated polymers |
US5710315A (en) * | 1994-05-27 | 1998-01-20 | E. I. Du Pont De Nemours And Company | Monomer recovery process for contaminated polymers |
EP0737666A1 (en) * | 1995-04-14 | 1996-10-16 | Dsm N.V. | Depolymerization of polyamides |
BE1009330A3 (en) * | 1995-04-14 | 1997-02-04 | Dsm Nv | Depolymerizing polyamides. |
US5668277A (en) * | 1995-04-14 | 1997-09-16 | Dsm N.V. | Depolymerization of polyamides |
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