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

Catalyst for synthesizing ethylidene diacetate and application of catalyst

A technology of diethylene acetate and catalyst, which is applied in the direction of physical/chemical process catalyst, carboxylate preparation, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of low yield of diacetate, Low selectivity and other issues, to achieve the effect of improving yield and selectivity, improving activity and stability

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by this invention is the problem of low yield and selectivity of ethylene diacetate, and a new catalyst for the synthesis of ethylene diacetate is provided. Features of high yield and high 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 for synthesizing ethylidene diacetate and application of catalyst
  • Catalyst for synthesizing ethylidene diacetate and application of catalyst
  • Catalyst for synthesizing ethylidene diacetate and application of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of catalyst: the Ru(OAc) that contains 5.80gRu, contains 2.50gCr and contains 1.25gBe 3 ·3H 2 O, Cr(OAc) 3 ·6H 2 O and BeO are fully mixed and dissolved in hydrochloric acid to obtain 500ml of impregnation solution, and 1.0L of spherical SiO with a diameter of 5.6mm 2 The carrier was immersed in the above impregnating solution, and dried at 100°C for 3 hours. 2 The catalyst was obtained by raising the temperature to 500° C. and calcining for 5 h in the atmosphere.

[0026] Synthesis of diethylene acetate: Add 1.5mol acetic acid, 0.05mol catalyst and 0.45mol methyl acetate into a 1.5L titanium reactor, first use argon to exhaust the air in the kettle, then pressurize to 2.0MPa, and then introduce carbon monoxide And hydrogen until the pressure is 7.8MPa, increase the stirring speed to 1500rpm, while stirring and heating to the reaction temperature, control the reaction temperature to 181°C, the molar ratio of carbon monoxide to hydrogen is 2:1, cont...

Embodiment 2

[0049] The preparation of catalyst: will contain 5.80gRu, contain 2.50gCr and contain the Ru(NO 3 ) 3 ·3H 2 O, Cr(NO 3 ) 3 9H 2 O and MgSO 4 ·H 2 O is fully mixed and dissolved in pure water to obtain 500ml of immersion solution, and 1.0L of spherical Al with a diameter of 5.6mm 2 o 3 The carrier was immersed in the above impregnating solution, left to stand for 3 hours, dried at 80° C., and then heated to 400° C. and calcined for 5 hours in a He atmosphere to obtain the catalyst.

[0050] Synthesis of diethylene acetate: Add 1.5mol acetic acid, 0.05mol catalyst and 0.45mol methyl acetate into a 1.5L titanium reactor, first use argon to exhaust the air in the kettle, then pressurize to 2.0MPa, and then introduce carbon monoxide And hydrogen until the pressure is 7.8MPa, increase the stirring speed to 1500rpm, while stirring and heating to the reaction temperature, control the reaction temperature to 181°C, the molar ratio of carbon monoxide to hydrogen is 2:1, contin...

Embodiment 3

[0054] Preparation of catalyst: RuCl containing 5.80gRu, 2.50gCr and 1.25gCa 3 ·3H 2 O, CrCl 3 ·6H 2 O and Ca(NO 3 ) 2 4H 2 O, fully mixed and dissolved in hydrochloric acid to obtain 500ml of impregnation solution, and 1.0L of spherical Al with a diameter of 5.6mm 2 o 3 The carrier was immersed in the impregnating solution, left to stand for 3 hours, dried at 120° C., and then heated to 600° C. and calcined for 5 hours in an Ar atmosphere to obtain the catalyst.

[0055] Synthesis of diethylene acetate: Add 1.5mol acetic acid, 0.05mol catalyst and 0.45mol methyl acetate into a 1.5L titanium reactor, first use argon to exhaust the air in the kettle, then pressurize to 2.0MPa, and then introduce carbon monoxide And hydrogen until the pressure is 7.8MPa, increase the stirring speed to 1500rpm, while stirring and heating to the reaction temperature, control the reaction temperature to 181°C, the molar ratio of carbon monoxide to hydrogen is 2:1, continue the reaction for...

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a catalyst for synthesizing ethylidene diacetate, a preparation method of the catalyst for synthesizing ethylidene diacetate and application of the catalyst in the synthesis of ethylidene diacetate. According to the catalyst, the preparation method and the application, the problems that a catalyst for synthesizing ethylidene diacetate in the prior art is relatively low in activity and selectivity are mainly solved. The catalyst comprises a carrier as well as ruthenium, chromium and alkaline earth metal which are loaded to the carrier, wherein the content of ruthenium is 3.0g / L-15.0g / L, the content of chromium is 1.0g / L-5.0g / L, and the content of alkaline earth metal 0.5g / L-5.0g / L; the carrier is selected from at least one of silicon oxide and aluminum oxide. According to the technical scheme, the technical problems are well solved. The catalyst can be applied to the industrial production of vinyl acetate.

Description

technical field [0001] The invention relates to a catalyst for synthesizing diethylene acetate, a preparation method and a synthesis method of diethylene acetate. Background technique [0002] Vinyl acetate, namely vinyl acetate (VAC or VAM for short), is a colorless, transparent, flammable liquid at room temperature with a sweet ether fragrance. It is one of the most productive organic chemical raw materials in the world, widely used in the production of polyvinyl acetate (PVAc), polyvinyl alcohol, coatings, pastes, adhesives, vinylon, films, vinyl copolymer resins, acetal resins A series of chemical and chemical fiber products are widely used in various industries. [0003] The production of vinyl acetate adopts ethylene gas phase method and acetylene gas phase method at home and abroad, which belong to the petrochemical process route. Since the rise of C1 chemistry, in the 1980s, American Halcon (Halcon) company and British Petroleum (BP) company successively A new proc...

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): B01J23/652C07C69/16C07C67/293
Inventor 查晓钟杨运信张丽斌
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