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

Catalyst for cyclohexylbenzene synthesis, and preparation method thereof

A cyclohexylbenzene, catalyst technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of high yield of cyclohexylbenzene, low yield of cyclohexylbenzene, and low yield of cyclohexane and other problems to achieve the effect of saving consumption

Active Publication Date: 2018-04-20
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by this invention is the high yield of the by-product cyclohexane and the low yield of the main product cyclohexylbenzene in the prior art, provide a catalyst for the synthesis of cyclohexylbenzene, use it When benzene and hydrogen react to synthesize cyclohexylbenzene, it has the advantages of low yield of cyclohexane and high yield of cyclohexylbenzene

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 for cyclohexylbenzene synthesis, and preparation method thereof
  • Catalyst for cyclohexylbenzene synthesis, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Catalyst preparation: Weigh out RuCl containing 0.8g Ru 3 ·3H 2 O and Ni(NO 3 ) 2 ·6H 2 O is dissolved in 1mol / L acetic acid aqueous solution and is made into 80g solution I; Measure 0.1L diameter to be 1mm, length 5mm cylindrical hydrogen-type BEA zeolite molecular sieve (silica / alumina molar ratio is 30) The above solution is loaded on the hydrogen-type BEA zeolite molecular sieve, impregnated at room temperature for 12 hours, dried at 100°C for 12 hours, and calcined at 450°C for 4 hours to obtain the desired catalyst.

[0060] Catalyst evaluation: get 10ml catalyst packing in the fixed-bed reactor, carry out activity evaluation after reduction activation, condition is as follows: the temperature of reaction is 150 ℃, and the mol ratio of benzene and hydrogen in the reaction raw material is 0.8, and the pressure of reaction is 2.0MPa ( Gauge pressure), the liquid volume space velocity of the raw material benzene of reaction is 0.5h -1 .

[0061] The catalyst ha...

Embodiment 2

[0063] Catalyst preparation: Weigh out RuCl containing 0.8g Ru 3 ·3H 2 O, Ni containing 0.1g Ni (NO 3 ) 2 ·6H 2 O and Fe(NO 3 ) 2 9H 2 O is dissolved in 1mol / L acetic acid aqueous solution and is made into 80g solution I; Measure 0.1L diameter to be 1mm, length 5mm cylindrical hydrogen-type BEA zeolite molecular sieve (silica / alumina molar ratio is 30) The above solution is loaded on the hydrogen-type BEA zeolite molecular sieve, impregnated at room temperature for 12 hours, dried at 100°C for 12 hours, and calcined at 450°C for 4 hours to obtain the desired catalyst.

[0064] Catalyst evaluation: get 10ml catalyst packing in the fixed-bed reactor, carry out activity evaluation after reduction activation, condition is as follows: the temperature of reaction is 150 ℃, and the mol ratio of benzene and hydrogen in the reaction raw material is 0.8, and the pressure of reaction is 2.0MPa ( Gauge pressure), the liquid volume space velocity of the raw material benzene of react...

Embodiment 3

[0067] Catalyst preparation: weigh IrCl containing 0.8g Ir 3 and Ni(NO 3 ) 2 ·6H 2 O is dissolved in 1mol / L acetic acid aqueous solution and is made into 80g solution I; Measure 0.1L diameter to be 1mm, length 5mm cylindrical hydrogen-type BEA zeolite molecular sieve (silica / alumina molar ratio is 30) The above solution is loaded on the hydrogen-type BEA zeolite molecular sieve, impregnated at room temperature for 12 hours, dried at 100°C for 12 hours, and calcined at 450°C for 4 hours to obtain the desired catalyst.

[0068] Catalyst evaluation: get 10ml catalyst packing in the fixed-bed reactor, carry out activity evaluation after reduction activation, condition is as follows: the temperature of reaction is 150 ℃, and the mol ratio of benzene and hydrogen in the reaction raw material is 0.8, and the pressure of reaction is 2.0MPa ( Gauge pressure), the liquid volume space velocity of the raw material benzene of reaction is 0.5h -1 .

[0069] The catalyst had an Ir conte...

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
densityaaaaaaaaaa
boiling pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to a catalyst for cyclohexylbenzene synthesis, and a preparation method thereof, and a method for one-step synthesis of cyclohexylbenzene through benzene hydroalkylation. In theprior art, the yield of the by-product cyclohexane is high and the yield of the main product cyclohexylbenzene is low in the reaction due to the catalyst. A purpose of the present invention is mainlyto solve the technical problems in the prior art. The technical scheme of the present invention is that the catalyst for cyclohexylbenzene production is used, and comprises a carrier and an active component supported on the carrier, the active component comprises a noble metal and an iron group element, the noble metal comprises at least one selected from ruthenium and iridium, the iron group element comprises at least one selected from nickel and iron, and the carrier is selected from a hydrogen-type zeolite molecular sieve. The obtained catalyst can be used for one-step preparation of cyclohexylbenzene through benzene hydroalkylation.

Description

technical field [0001] The invention relates to a catalyst for synthesizing cyclohexylbenzene, a preparation method thereof and a method for synthesizing cyclohexylbenzene by one-step hydroalkylation of benzene. Background technique [0002] Cyclohexylbenzene is an important intermediate widely used in liquid crystal, plastics, coatings, adhesives and other fields. Cyclohexylbenzene liquid crystal has the characteristics of extremely high chemical stability, photochemical stability, low viscosity and excellent physical properties, and is one of the ideal materials for display devices. Cyclohexylbenzene is used as an additive for lithium-ion battery electrolyte, has anti-overcharge performance, and can improve the safety performance of the battery. In addition, phenol and cyclohexanone can be prepared through the peroxidation and decomposition reaction process of cyclohexylbenzene, which are used to produce bulk chemical raw materials such as phenolic resin, caprolactam and ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/072B01J29/24C07C2/74C07C13/28
CPCB01J29/24B01J29/7615B01J29/7676C07C2/74C07C13/28
Inventor 韩亚梅刘仲能王德举钱斌
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com