Catalyst for preparation of furfuryl alcohol by furfural liquid phase hydrogenation and preparation method

A catalyst and furfural liquid technology, which is applied in the field of catalysts for furfural liquid-phase hydrogenation to furfuryl alcohol, can solve the problems of short life, non-recyclable catalyst, easy deactivation, etc., and achieve less addition, low price, high activity and selectivity sexual effect

Active Publication Date: 2016-04-20
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Due to the easy deactivation and short life of the

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

Example Embodiment

[0038] Example 1:

[0039] Weigh copper nitrate (Cu(NO 3 ) 2 ·3H 2 O) 132.9g, chromic anhydride (CrO 3 )50.0g, lanthanum nitrate (La(NO 3 ) 3 ·6H 2 O) 4.7g and 36g of 25wt% acid silica gel are miscible in 500mL of deionized water; first put 100mL of deionized water into the reactor, and under constant stirring, the copper-chromium-lanthanum-silicon mixture is mixed with 3wt% alkane Ammonia water (18wt%) of base phenol polyoxyethylene ether was added in parallel to control the pH value of the reaction at 6, while raising the temperature of the reaction solution to 40°C. After the addition, the temperature was kept and stirred for 0.5 hours, filtered, and dried at 120°C for 12 hours. Then it was calcined in a muffle furnace at 300°C for 4 hours, and finally ground into a catalyst sample smaller than 120 mesh. The specific surface area of ​​the sample was 128m. 2 / g, the dispersion degree of metallic Cu is 0.68, CuO / Cr in the catalyst 2 O 3 The molar ratio is 2.2, CuO / La 2 O 3 The mo...

Example Embodiment

[0040] Example 2:

[0041] Weigh copper nitrate (Cu(NO 3 ) 2 ·3H 2 O) 145.0g, chromic anhydride (CrO 3 )50.0g, lanthanum nitrate (La(NO 3 ) 3 ·6H 2 O) 3.35g and 25g of 25wt% acid silica gel are miscible in 500mL of deionized water; first put 100mL of deionized water into the reactor, and under constant stirring, the copper-chromium-lanthanum-silicon mixture is mixed with 5wt% Ammonia water (18wt%) of polyvinylpyrrolidone was added in parallel to control the pH of the reaction at 6, and at the same time the temperature of the reaction solution was raised to 40°C. After the addition, the temperature was kept and stirred for 0.5 hours, filtered, and dried at 120°C for 12 hours. Calcined in a furnace at 300°C for 4 hours, and finally milled into a catalyst sample smaller than 120 mesh, the specific surface area of ​​the sample is 130m 2 / g, the dispersion degree of metallic Cu is 0.65, CuO / Cr in the catalyst 2 O 3 The molar ratio is 2.4, CuO / La 2 O 3 The molar ratio is 155.1, CuO / SiO ...

Example Embodiment

[0042] Example 3:

[0043] Weigh copper nitrate (Cu(NO 3 ) 2 ·3H 2 O) 108.7g, chromic anhydride (CrO 3 )50.0g and lanthanum nitrate (La(NO 3 ) 3 ·6H 2 O) 6.5g and 54g of 25wt% acid silica gel are miscible in 500mL deionized water; first, 100mL of deionized water is put into the reactor, and under constant stirring, the copper-chromium-lanthanum-silicon mixture is mixed with 4wt% poly Ethylene glycol ammonia water (18wt%) was added in parallel to control the pH of the reaction at 6, and at the same time the temperature of the reaction solution was increased to 40°C. After the addition, the temperature was kept and stirred for 0.5 hours, filtered, and dried at 120°C for 12 hours. Calcined in a Furnace at 300°C for 4 hours, and finally milled into a catalyst sample smaller than 120 mesh, with a specific surface area of ​​125m 2 / g, the dispersion of metal Cu is 0.61, CuO / Cr in the catalyst 2 O 3 The molar ratio is 1.8, CuO / La 2 O 3 The molar ratio is 66.6, CuO / SiO 2 The molar ratio i...

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
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to view more

Abstract

The invention discloses a catalyst for preparation of furfuryl alcohol by furfural liquid phase hydrogenation and a preparation method. The catalyst comprises: Cuo, Cr2O3, La2O3 and SiO2. The mole ratio of CuO/Cr2O3 is 1.8-2.4, the mole ratio of CuO/La2O3 is 60-160, and the mole ratio of CuO/SiO2 is 2-6. The method includes: taking the components according to the dosage to prepare the catalyst for preparation of furfuryl alcohol by furfural liquid phase hydrogenation by co-precipitation. The catalyst provided by the invention overcomes the disadvantages of the prior art, and has the advantages of high activity and selectivity of furfuryl alcohol, low price and continuous applicability.

Description

technical field [0001] The invention relates to the field of furfuryl alcohol production, in particular to a catalyst for preparing furfuryl alcohol by furfural liquid-phase hydrogenation. Background technique [0002] Furfuryl alcohol is an important chemical raw material. Furfuryl alcohol can be hydrolyzed to produce ethylphthalic acid, which is an intermediate of nutritional medicine calcium fructonate; furan-type resin, furfuryl alcohol-urea-formaldehyde resin and Phenolic resins, etc.; furfuryl alcohol is a good solvent and rocket fuel for furan resins, varnishes, and pigments; in addition, furfuryl alcohol is also widely used in synthetic fibers, rubber, pesticides and foundry industries. [0003] At present, the production process of furfuryl alcohol can be divided into liquid phase hydrogenation process and gas phase hydrogenation process. Catalysts for furfural liquid-phase hydrogenation to produce furfuryl alcohol are mainly divided into two types: copper-chromium...

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): B01J23/86C07D307/44
Inventor 冯海强高继东赵开径朱跃辉
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