Amorphous copper catalyst and preparation method and application thereof

A copper catalyst, amorphous technology, applied in the field of amorphous copper catalyst and its preparation, can solve the problems of difficult to accurately control the chemical composition of the catalyst, unsatisfactory catalyst activity and stability, uneven distribution of catalyst components, etc., to achieve Operational stability and production efficiency improvement, catalyst cost reduction, activity and stability improvement effects

Active Publication Date: 2010-06-16
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst still has the following deficiencies: (1) catalyst activity and stability are not ideal; (2) component distribution in the catalyst is un

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

[0027] 1.5kg copper, 1.0kg aluminum and 0.5kg Mo 10 Al 90 The alloy is added to the graphite crucible, heated to melting in a high-frequency furnace, and then the molten liquid is sprayed from the nozzle of the crucible onto a copper roller with a rotation speed of 600 to 1000 rpm. Cooling water is passed through the copper roller, and the alloy The liquid is rapidly cooled at a cooling rate of 1000°C / s and then thrown out along the tangent of the copper roll to form scale-like strips, which are ground to a particle diameter of less than 70 microns to obtain a master alloy. Slowly add 50 g of the master alloy into a three-neck flask filled with 500 g of 20 wt % sodium hydroxide aqueous solution, control its temperature at 80° C. and keep stirring at constant temperature for 1 hour. After stopping heating and stirring, decant the liquid and wash with distilled water at 100°C until the pH value is 7. The prepared catalyst is numbered Catalyst-1, and the composition of Catalyst...

Embodiment 2

[0029] 1.5kg copper, 1.0kg aluminum and 0.5kg Mo 5 Al 95 The alloy is added to the graphite crucible, heated in a high-frequency furnace to melt, and then the molten liquid is sprayed from the nozzle of the crucible onto a copper roller with a rotation speed of 900 rpm. Cooling water is passed through the copper roller, and the alloy liquid is After rapid cooling at a cooling rate of 1000°C / s, it is thrown out along the tangent line of the copper roll to form scale-like strips. The scale-like strips are ground to a particle diameter of less than 70 microns to obtain a master alloy. Slowly add 50 g of the master alloy into a three-neck flask filled with 500 g of 20 wt % sodium hydroxide aqueous solution, control its temperature at 80° C. and keep stirring at constant temperature for 1 hour. After stopping heating and stirring, decant the liquid and wash with distilled water at 80°C until the pH value is 7. The prepared catalyst is numbered Catalyst-2, and the composition of C...

Embodiment 3

[0031] 1.5kg copper, 1.0kg aluminum and 0.5kg W 10 Al 90 Add the alloy into the graphite crucible, heat it in a high-frequency furnace until it melts, spray the molten liquid from the nozzle of the crucible onto a copper roller with a rotating speed of 900 rpm, and pass cooling water through the copper roller, and the alloy liquid is 10 5After rapid cooling at the cooling rate of ℃ / s, it is thrown out along the tangent line of the copper roll to form scale-like strips. The scale-like strips are ground to a particle diameter of less than 70 microns to obtain a master alloy. Slowly add 50 g of the master alloy into a three-neck flask filled with 500 g of 20 wt % sodium hydroxide aqueous solution, control its temperature at 80° C. and keep stirring at constant temperature for 1 hour. After stopping heating and stirring, decant the liquid and wash with distilled water at 80°C until the pH value is 7. The prepared catalyst is numbered Catalyst-3, and the composition of Catalyst-...

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

PropertyMeasurementUnit
Granularityaaaaaaaaaa
Login to view more

Abstract

The invention relates to an amorphous copper catalyst and a preparation method and application thereof. The preparation method comprises the following steps: heating copper, aluminum, and an alloy consisting of a transition metal M and aluminum to melt; rapidly cooling and curing the melts; and performing extraction treatment on the cured alloy by using alkali solution so as to extract most aluminum to obtain the catalyst. The catalyst prepared by the method has high catalytic activity and stability and excellent abrasion resistance, and can be applied to catalytic dehydrogenation oxidation reaction of diethanol amine.

Description

technical field [0001] The invention relates to an amorphous copper catalyst, a preparation method and application thereof. More specifically, the present invention relates to an amorphous copper catalyst, its preparation method and the application of the catalyst in the catalytic dehydrogenation process of diethanolamine. Background technique [0002] Raney copper is a typical solid dehydrogenation catalyst, which is usually prepared by the following method: the molten alloy composed of copper and aluminum is poured into a mold, cooled and solidified, and then the resulting alloy block is crushed with a jaw crusher Or crushed into granules or powder by a ball mill, and then leached with sodium hydroxide to remove the aluminum component. When the Raney copper catalyst prepared by this method is used for dehydrogenation reaction, it cannot show satisfactory catalytic activity. [0003] U.S. Patent No. 5,367,112 discloses a method for preparing aminocarboxylates by using Ran...

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): B01J25/00C07C229/16C07C227/18
Inventor 张晓昕王宣孟祥堃慕旭宏宗保宁
Owner CHINA PETROLEUM & CHEM CORP
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