Loaded nickel-base bi-component catalyst and application thereof

A two-component, supported technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, preparation of amino compounds, etc., can solve the limitation of application, reduce product quality, and accelerate catalyst deactivation and other issues, to achieve the effect of reducing the cost of use, important economic value and environmental significance

Active Publication Date: 2011-09-21
ZHEJIANG UNIV OF TECH
View PDF12 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Raney nickel catalysts show excellent catalytic performance in the reaction, but bring new problems when alkali metal hydroxides such as sodium hydroxide are used as secondary amine inhibitors. This is because the Raney nickel catalyst will partially dissolve In the sodium hydroxide s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 10 grams of γ-alumina, and impregnate it in an equal volume of nickel nitrate solution (10 ml solution containing 6.2 grams of nickel nitrate hexahydrate), after immersion for 4 hours, dry at 110°C for 3 hours, and then dry at 500°C Roasting is preferably 4 hours. After cooling, take it out and continue to immerse in an equal volume of cobalt nitrate solution containing 1.55 grams of cobalt nitrate hexahydrate in 10 ml of solution. After 4 hours of immersion, dry at 110°C for 3 hours, and then bake at 450°C for 4 hours.

Embodiment 2

[0027] Weigh 10 grams of γ-alumina, impregnate it in 10 ml of solution containing 3.1 grams of nickel nitrate hexahydrate, after immersion for 4 hours, dry at 110°C for 3 hours, then roast at 500°C for preferably 4 hours, take it out after cooling Continue to immerse in 10 ml of solution containing 3.1 g of cobalt nitrate hexahydrate. After 4 hours of immersion, dry at 110° C. for 3 hours, and then bake at 450° C. for 4 hours.

Embodiment 3

[0029] Weigh 10 grams of γ-alumina, impregnate it in 10 ml of solution containing 6.2 grams of nickel nitrate hexahydrate, after immersion for 4 hours, dry at 110°C for 3 hours, then roast at 500°C for preferably 4 hours, take it out after cooling Continue to immerse in 10 ml of solution containing 1.0 g of chloroplatinic acid hexahydrate. After 4 hours of immersion, dry at 110° C. for 3 hours, and then bake at 450° C. for 4 hours.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a loaded nickel-base bi-component catalyst and an application thereof. The catalyst is prepared by the following steps of: (1) firstly immersing a carrier with a soluble nickel salt solution by adopting an isovolumetric immersion method, then drying and roasting, wherein the carrier is gamma-aluminium oxide, silicon dioxide, molecular sieve or activated carbon; and (2) immersing the product obtained by the step (1) with a soluble transitional metal salt solution of another transitional metal by adopting the isovolumetric immersion method, drying and roasting again, thus the loaded nickel-base bi-component catalyst is obtained, wherein the transitional metal is selected from Fe, Co, Cr, Cu, Zn, Pt, Pd, Ru, Au and Ag. The loaded nickel-base bi-component catalyst disclosed by the invention is applied to preparation of high purity 3-dimethyl amino propylamine by catalytic hydrogenation on 3-dimethyl amino propionitrile, the reaction selectivity is high, and the catalyst can be reused, thus the catalyst is suitable for industrial application.

Description

(1) Technical field [0001] The invention relates to a catalyst for preparing 3-dimethylaminopropylamine by catalytic hydrogenation of 3-dimethylaminopropionitrile and an application method thereof. (2) Background technology [0002] 3-Dimethylaminopropylamine (DMAPA) is an important chemical intermediate widely used in the production of surfactants, flocculants, gasoline and engine oil additives, etc. At present, the catalytic hydrogenation of fatty nitriles (3-dimethylaminopropionitrile, DMAPN) to the corresponding fatty primary amines (DMAPA) is commonly used in industry, and alkaline substances are used to suppress the formation of secondary and tertiary amines. The biggest problem in this catalytic hydrogenation process is the reaction selectivity, which is because the primary amine produced by the reaction will undergo addition side reaction with the intermediate product imine, and then generate secondary and tertiary amines. Also can generate by product N in the react...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/755B01J23/89C07C211/11C07C209/48
Inventor 马磊卢春山张群峰袁俊峰许孝良李小年
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap