Catalyst for preparing furfuryl alcohol from furfural through gas-phase hydrogenation, preparing method thereof and method of preparing furfuryl alcohol from furfural through gas-phase hydrogenation

A technology for preparing furfuryl alcohol and catalyst, which is applied in chemical instruments and methods, physical/chemical process catalysts, organic chemistry, etc., can solve the problems of complex preparation method, unstable activity and selectivity, etc., and achieves simple preparation method, high activity and high efficiency. Selective, repeatable performance

Active Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of complex catalyst preparation method, unstable activity and selectivity in the prior art of furfural gas-phase hydrogenation to furfuryl alcohol, to provide a preparation method that is relatively simple, the preparation process is pollution-free, and has catalyst activity and selectivity. Catalyst for producing furfuryl alcohol by gas-phase hydrogenation of furfural with higher toxicity, and the preparation method of the catalyst for producing furfuryl alcohol by gas-phase hydrogenation of furfural and the method for preparing furfuryl alcohol by gas-phase hydrogenation of furfural

Method used

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Examples

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preparation example Construction

[0022] Second aspect, the present invention also provides a kind of preparation method of the catalyst of furfural gas phase hydrogenation furfuryl alcohol, this method comprises:

[0023] (1) Grinding the mixture of copper oxide powder, chromium oxide powder and silica sol;

[0024] (2) drying, roasting, and tableting the mixture obtained in step (1) successively;

[0025] (3) impregnating the formed product obtained in step (2) in an aqueous solution of potassium carbonate,

[0026] Wherein, the molar ratio of copper oxide powder to chromium oxide powder is 1-5:1, the molar ratio of copper oxide powder to potassium carbonate is 20-80:1, and the molar ratio of copper oxide powder to silicon dioxide in silica sol is 1 -20:1.

[0027] According to the method of the present invention, preferably, the molar ratio of copper oxide powder and chromium oxide powder is 2.4-3:1, the molar ratio of copper oxide powder and potassium carbonate is 40-60:1, the copper oxide powder and sil...

Embodiment 1

[0043] This example is used to illustrate the catalyst for preparing furfuryl alcohol by gas-phase hydrogenation of furfural and the preparation method thereof and the method for preparing furfuryl alcohol by gas-phase hydrogenation of furfural of the present invention.

[0044] (1) Weigh 30g CuO powder (particle size less than 100 mesh), 22.1g Cr 2 o 3 Powder (particle size is less than 100 mesh), 25.9g 25% by weight of acidic silica gel is placed in the ball milling tank, under the ball milling condition that the rotating speed is 400 rev / min, the ball-to-material ratio is 15:1, ball milling 12 hours, take out the mixture, through Dry at 120°C for 12 hours, then bake at 350°C in a muffle furnace for 4 hours, then add 1% by weight of graphite to make a shaped catalyst, and impregnate the shaped catalyst at room temperature with 0.94g of K 2 CO 3 In the aqueous solution, the immersion time is 2 hours, and finally dried at 110° C. for 12 hours to obtain furfural gas-phase hyd...

Embodiment 2

[0047] This example is used to illustrate the catalyst for preparing furfuryl alcohol by gas-phase hydrogenation of furfural and the preparation method thereof and the method for preparing furfuryl alcohol by gas-phase hydrogenation of furfural of the present invention.

[0048] (1) Weigh 30g CuO powder (particle size less than 90 mesh), 23.89g Cr 2 o 3 Powder (particle size is less than 95 mesh), 30.2g 25% by weight of acidic silica gel is placed in the ball milling tank, under the ball milling condition that the rotating speed is 300 rev / min, the ball-to-material ratio is 10:1, ball milling 6 hours, take out the mixture, through Dry at 120°C for 12 hours, then bake at 350°C in a muffle furnace for 4 hours, then add 1% by weight of graphite to make a shaped catalyst, impregnate the shaped catalyst at room temperature with 1.3g of K 2 CO 3 In the aqueous solution, the immersion time is 2 hours, and finally dried at 110° C. for 12 hours to obtain furfural gas-phase hydrogenat...

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Abstract

The invention relates to a catalyst for preparing furfuryl alcohol from furfural through gas-phase hydrogenation. The catalyst contains copper oxide, chromic oxide, potassium carbonate and silicon dioxide, the molar ratio of copper oxide to chromic oxide is (1-5):1, the molar ratio of copper oxide to potassium carbonate is (20-80):1, and the molar ratio of copper oxide to silicon dioxide is (1-20):1. The invention further relates to a preparing method of the catalyst for preparing furfuryl alcohol from furfural through gas-phase hydrogenation and the catalyst prepared through the method and furthermore relates to a method of preparing furfuryl alcohol from furfural through gas-phase hydrogenation. The catalyst used for preparing furfuryl alcohol from furfural through gas-phase hydrogenation and prepared through the method is high in activity and selectivity, high in performance repeatability, easy to apply industrially in a scale-up mode, the preparing method is simple and easy to operate, and waste water polluting the environment is avoided in the catalyst preparing process.

Description

technical field [0001] The present invention relates to the field of furfuryl alcohol production, in particular to a catalyst for preparing furfuryl alcohol by gas-phase hydrogenation of furfural, a method for preparing a catalyst for preparing furfuryl alcohol by gas-phase hydrogenation of furfural, a catalyst prepared by the method, and a method for preparing furfuryl alcohol by gas-phase hydrogenation of furfural . 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 furf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/232C07D307/44
Inventor 冯海强朱跃辉赵开径高继东
Owner CHINA PETROLEUM & CHEM CORP
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