Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Catalyst, preparation method thereof, and n-hexylamine production process using catalyst

A production process and catalyst technology, which is applied in the field of n-hexylamine production, can solve the problems of poor selectivity, low conversion rate and high reaction conditions, and achieve the effects of high conversion rate, corrosion avoidance and mild reaction conditions

Inactive Publication Date: 2019-10-08
山东达民化工股份有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing production process has relatively high reaction conditions, low conversion rate and poor selectivity.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst, preparation method thereof, and n-hexylamine production process using catalyst
  • Catalyst, preparation method thereof, and n-hexylamine production process using catalyst
  • Catalyst, preparation method thereof, and n-hexylamine production process using catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of catalyst, described catalyst is Co-Zn / Al 2 o 3 , including the following components by weight: Co is 10.0%, Zn is 20.0%, and the rest is Al 2 o 3 .

[0020] A preparation method of catalyst, comprising the steps of: Al(OH) 3 Prepare a sodium metaaluminate solution with 40% NaOH, neutralize the precipitate with nitric acid, age, filter, wash, and roll into balls, dry, and roast to obtain spherical Al with a diameter of 1-3mm. 2 o 3 Carrier, the nitrate of Co and Zn is made into a mixed solution in proportion, for Al 2 o 3 The carrier is impregnated, dried and placed in a muffle furnace for calcination at 490°C for 6 hours. After cooling, it is impregnated with a mixed solution of Co and Zn nitrates again, and the catalyst is calcined under the same conditions. The bulk density of the catalyst was 0.90 g / ml. The catalyst number is A-1.

Embodiment 2

[0022] A kind of catalyst, described catalyst is Co-Zn / Al 2 o 3 , including the following components by weight: Co is 15.0%, Zn is 20.0%, and the rest is Al 2 o 3 .

[0023] A preparation method of catalyst, comprising the steps of: Al(OH) 3 Prepare a sodium metaaluminate solution with 40% NaOH, neutralize the precipitate with nitric acid, age, filter, wash, and roll into balls, dry, and roast to obtain spherical Al with a diameter of 1-3mm. 2 o 3 Carrier, the nitrate of Co and Zn is made into a mixed solution in proportion, for Al 2 o 3 The carrier is impregnated, dried and placed in a muffle furnace for calcination at 490°C for 6 hours. After cooling, it is impregnated with a mixed solution of Co and Zn nitrates again, and the catalyst is calcined under the same conditions. The bulk density of the catalyst was 0.90 g / ml. The catalyst number is A-2.

Embodiment 3

[0025] A kind of catalyst, described catalyst is Co-Zn / Al 2 o 3 , including the following components by weight: Co is 15.0%, Zn is 15.0%, and the rest is Al 2 o 3 .

[0026] A preparation method of catalyst, comprising the steps of: Al(OH) 3 Prepare a sodium metaaluminate solution with 40% NaOH, neutralize the precipitate with nitric acid, age, filter, wash, and roll into balls, dry, and roast to obtain spherical Al with a diameter of 1-3mm. 2 o 3 Carrier, the nitrate of Co and Zn is made into a mixed solution in proportion, for Al 2 o 3 The carrier is impregnated, dried and placed in a muffle furnace for calcination at 490°C for 6 hours. After cooling, it is impregnated with a mixed solution of Co and Zn nitrates again, and the catalyst is calcined under the same conditions. The bulk density of the catalyst was 0.90 g / ml. The catalyst number is A-3.

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
Bulk densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a catalyst, a preparation method thereof, and an n-hexylamine production process using the catalyst, and relates to the technical field of n-hexylamine production. The preparation method comprises the following steps: step 1, putting a prepared catalyst into a reactor, and carrying out reacting with pure hydrogen at pressure of 0.05MPa, at a temperature of 460 DEG C and ata space velocity of 1000 h<-1> for 24 hours, wherein the reaction is carried out in a gas phase, and a continuous process is adopted under set reaction conditions; and step 2, pumping n-hexane into avaporization preheater through a flow meter, mixing and pre-heating the n-hexane with ammonia gas and hydrogen, gasifying the mixture, feeding the gasified mixture into a fixed bed reactor for reacting, cooling the material obtained after the reaction by a condenser, carrying out gas-liquid separation, feeding the liquid phase into an azeotropic rectification tower for separation and purification,and carrying out vacuum rectification on the liquid phase product to obtain a normal hexane series mixed product. The reaction conditions of the process are mild, and a gas-solid reaction is adopted,so that corrosion of the liquid-phase materials to reaction equipment under a high-temperature high-pressure condition is avoided. Requirements on equipment materials are low, and fully continuous production can be realized.

Description

technical field [0001] The invention relates to the technical field of n-hexylamine production, in particular to a catalyst, a preparation method thereof and a n-hexylamine production process using the catalyst. Background technique [0002] N-hexylamine is a fine chemical raw material, mainly used in organic synthesis; used in intermediates of dyes, pigments, surfactants, and pharmaceutical synthesis; used in organic synthesis intermediates and biochemical reagents; Electronic chemicals such as etching solution formulations for OLED displays. The current preparation method of n-hexylamine: it is obtained by treating methyl n-hexyl ketone oxime with phosphorus pentachloride. Methyl n-hexyl ketone oxime was treated with phosphorus pentachloride in ether, then added water and stirred evenly, and the layers were separated. The N-acetyl n-ethylamine produced by the rearrangement was dissolved in ether, and the ether layer was separated. Ether was recovered by distillation, an...

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): B01J23/80C07C211/07C07C209/16
CPCB01J23/80C07C209/16C07C211/07
Inventor 陈国华郭文杰
Owner 山东达民化工股份有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com