Catalyst for preparing furfuryl alcohol through furfural hydrogenation and preparation method thereof

A catalyst and hydrogen preparation technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic chemistry, etc., can solve the problems of catalyst occupancy, high cost, etc., to improve hydrogenation selectivity, reduce production costs, and increase furfural conversion rate effect

Active Publication Date: 2017-06-13
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the industrial production of furfural hydrogenation to furfuryl alcohol, the catalyst accounts for a large part of its cost

Method used

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  • Catalyst for preparing furfuryl alcohol through furfural hydrogenation and preparation method thereof
  • Catalyst for preparing furfuryl alcohol through furfural hydrogenation and preparation method thereof
  • Catalyst for preparing furfuryl alcohol through furfural hydrogenation and preparation method thereof

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preparation example Construction

[0036] The present invention also provides the preparation method of the catalyzer that above-mentioned furfural hydrogenation prepares furfuryl alcohol, it comprises the steps:

[0037] (1) under continuous stirring, ammoniacal liquor is added to the copper sulfate solution to form a mixed solution; wherein, calcium carbonate is dispersed in the copper sulfate solution;

[0038] (2) Under continuous stirring, the sodium hydroxide solution is gradually added to the mixed solution, and after the addition is completed, the compressed gas is introduced to release the ammonia gas, thereby forming a slurry, and the Cu in the slurry is 2+ Not more than 30ppm;

[0039] (3) Obtain a filter cake after filtering the slurry obtained in step (2), and use compressed gas to dry the filter cake;

[0040] (4) washing the filter cake dried in step (3) with water until the pH value of the filtrate is 7 to 8, and then drying the washed filter cake with compressed air;

[0041] (5) Heating the ...

Embodiment 1

[0059] 1.5kg calcium carbonate is dispersed in the copper sulfate solution that contains 2.8kg copper sulfate pentahydrate of 12.8kg to form mixed solution, then this mixed solution is placed in container. Add 356g of ammonia water into the separatory funnel, then add the ammonia water into the container containing the mixed solution at a flow rate of 0.5ml / min, and the stirring speed during the feeding process is 150rpm. After the feeding was completed, the stirring was continued for 30 min. According to the flow rate of 5 ml / min, 1.53 kg of sodium hydroxide solution was gradually fed into the above reaction system, and the stirring speed during the feeding process was 150 rpm. After feeding, continue to stir, and at the same time, pass compressed air into the bottom of the container for about 2 hours, so as to ensure that all the ammonia gas escapes, and the Cu in the slurry 2+ ≯30ppm. The slurry is added to the filter funnel, and the filtrate is circulated until it become...

Embodiment 2～3

[0062] Except that the quality of the added raw materials was replaced by those shown in Table 1, the remaining steps and conditions were the same as in Example 1, and catalysts Q and R were obtained in sequence.

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Abstract

The invention discloses a catalyst for preparing furfuryl alcohol through furfural hydrogenation and a preparation method thereof. The catalyst takes calcium carbonate as a carrier and copper oxide as an active ingredient, wherein the weight of copper oxide is 32-75wt% of the total weight of the catalyst. The catalyst disclosed by the invention has the advantages that the production cost of the catalyst is obviously reduced, and the furfural conversion rate and hydrogenation selectivity are also relatively high.

Description

technical field [0001] The invention relates to a catalyst for preparing furfuryl alcohol by hydrogenating furfural and a preparation method thereof. Background technique [0002] Furfuryl alcohol is an important fine chemical widely used in synthetic fiber, rubber and pesticide industries. Furfuryl alcohol can be used to make a variety of resins, among which furfuryl alcohol resin can be used to produce plasticizers with excellent cold resistance. In my country, 80% to 90% of furfuryl alcohol is consumed in furan resin. Furan resins are widely used in the foundry industry as binders. Furfuryl alcohol is a good solvent for varnishes, pigments, etc., and can also be used as rocket fuel. Furfuryl alcohol can be hydrolyzed to produce levulinic acid, which is an intermediate of nutritional medicine calcium fructonate. Furfuryl alcohol is also used in the production of high-temperature-resistant phenolic resin binders for friction wheels, such as brake pads for automobiles. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/232B01J35/02C07D307/44
CPCC07D307/44B01J27/232B01J35/50
Inventor 史建公刘志坚苏海霞张敏宏桂建舟刘丹罗道威张文平张毅张新军蒋绍洋钟健曹光伟文建军殷喜平伊红亮李卫红陈红军孟凡立胡学武
Owner CHINA PETROLEUM & CHEM CORP
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