MY117780A - A process for continuous hydrogenation of adiponitrile - Google Patents

A process for continuous hydrogenation of adiponitrile

Info

Publication number
MY117780A
MY117780A MYPI9804005A MY117780A MY 117780 A MY117780 A MY 117780A MY PI9804005 A MYPI9804005 A MY PI9804005A MY 117780 A MY117780 A MY 117780A
Authority
MY
Malaysia
Prior art keywords
adiponitrile
nylon
hexamethylene diamine
continuous hydrogenation
periodic addition
Prior art date
Application number
Inventor
Sourav Kumar Sengupta
Theodore A Koch
Karl Robert Krause
Original Assignee
Du Pont
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
Priority claimed from US09/048,603 external-priority patent/US5900511A/en
Application filed by Du Pont filed Critical Du Pont
Publication of MY117780A publication Critical patent/MY117780A/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

A PROCESS FOR CONTINUOUS HYDROGENATION OF ADIPONITRILE (ADN) TO HEXAMETHYLENE DIAMINE (HMD) AND OPTIONALLY TO AMNINOCAPRONITRILE (ACN) INVOLVING THE CATALYTIC HYDROGENATION OF ADIPONITRILE AT RELATIVELY LOW TEMPERATURE (E.G., 75°C) AND PRESSURE (E.G., 500 PSIG) USING A SPONGE COBALT CATALYST (RANEY(R) CO) IN A REACTION MEDIUM THAT IS SUBSTANTIALLY FREE OF CAUSTIC. IN SUCH A PROCESS PERIODIC ADDITION OF WATER CONTROLS THE PRODUCTION OF SIDE REACTION PRODUCTS AND THE PERIODIC ADDITION OF AMMONIUM HYDROXIDE REJUVENATES THE CATALYST. HEXAMETHYLENE DIAMINE IS AN IMPORTANT INTERMEDIATE FOR THE SYNTHESIS OF POLYAMIDES SUCH AS NYLON-6, 6 AND AMINOCAPRONITRILE IS A POTENTIAL INTERMEDIATE OF NYLON-6.
MYPI9804005 1998-03-26 1998-09-02 A process for continuous hydrogenation of adiponitrile MY117780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/048,603 US5900511A (en) 1997-03-28 1998-03-26 Process for continuous hydrogenation of adiponitrile

Publications (1)

Publication Number Publication Date
MY117780A true MY117780A (en) 2004-08-30

Family

ID=28452170

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9804005 MY117780A (en) 1998-03-26 1998-09-02 A process for continuous hydrogenation of adiponitrile

Country Status (2)

Country Link
MY (1) MY117780A (en)
TW (1) TW524793B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113336241A (en) * 2021-07-08 2021-09-03 北京理工大学 Method for separating and preparing novel high-energy oxidant ammonium dinitramide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113336241A (en) * 2021-07-08 2021-09-03 北京理工大学 Method for separating and preparing novel high-energy oxidant ammonium dinitramide
CN113336241B (en) * 2021-07-08 2022-04-01 北京理工大学 Method for separating and preparing ammonium dinitramide as high-energy oxidant

Also Published As

Publication number Publication date
TW524793B (en) 2003-03-21

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