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Preparation method of alkylamine and method of increasing hydroamination activity of calicining zeolite catalyst

A zeolite catalyst, hydroamination technology, applied in catalyst activation/preparation, catalyst regeneration/reactivation, molecular sieve catalyst, etc., can solve problems such as the increase of catalyst activity that is not described

Inactive Publication Date: 2004-10-06
BASF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in activity of catalysts not passivated in this way is not described

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1: (External regeneration)

[0063] storage

Embodiment 2

[0064] Example 2: (External regeneration)

[0065] storage

Embodiment 3

[0066] Embodiment 3 (in situ regeneration)

[0067] The stored catalyst was installed in a pilot plant reactor and it showed an activity of 15.4 mol% TBA. Feedstock feed was then stopped and nitrogen was passed through the catalyst in the reactor at 300°C for 22 hours. When the reactor was started up again, the activity was found to increase to 16.2 mol% TBA.

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PUM

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Abstract

Alkylamine production by reaction of olefins with ammonia or primary or secondary amines under hydroamination conditions with a calcined zeolitic catalyst is such that at most 24 hours before the reaction the catalyst is heat- activated at 100-550degreesC in a gas stream of air, nitrogen and / or other inert gases.

Description

field of invention [0001] The present invention relates to a process for the preparation of alkylamines by reacting olefins with ammonia, primary or secondary amines under hydroamination conditions over a calcined zeolite catalyst. The invention further relates to a method for increasing the hydroamination activity of calcined zeolite catalysts and the catalysts obtained in this way. technical background [0002] The use of zeolites as catalysts in processes for the amination of olefins with ammonia or primary or secondary amines has been known for a relatively long time. Thus, EP-A 0 133 938 describes the preparation of amines from olefins and ammonia, primary amines, secondary amines or mixtures thereof in the presence of borosilicates or borogermanates of the Pentasil type as catalysts. The resulting amine is separated from the reaction mixture and unreacted starting material is recycled. [0003] The patent application states that after the zeolite catalyst has been pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/08B01J29/70B01J29/86B01J29/90B01J37/14B01J38/12C07B61/00C07C209/00C07C209/60C07C211/03C07C211/05C07C211/06C07C211/07C07C211/20C07C211/21
CPCB01J37/14B01J29/7007B01J2229/186B01J38/12B01J29/90C07C209/60B01J2229/42B01J2229/37B01J29/86Y02P20/584C07C211/03
Inventor M·西格尔U·米勒
Owner BASF AG
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