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Furfural hydrogenation catalyst containing rare earth elements and preparation method thereof

The technology of a hydrogenation catalyst and rare earth element is applied in the field of furfural hydrogenation catalyst and its preparation, which can solve the problems of catalyst occupation and high cost, and achieve the effects of improving catalytic activity, good product stability and high furfural conversion rate.

Active Publication Date: 2017-05-31
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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  • Furfural hydrogenation catalyst containing rare earth elements and preparation method thereof
  • Furfural hydrogenation catalyst containing rare earth elements and preparation method thereof
  • Furfural hydrogenation catalyst containing rare earth elements and preparation method thereof

Examples

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Effect test

preparation example Construction

[0037] The present invention also provides the preparation method of above-mentioned furfural hydrogenation catalyst, it comprises the steps:

[0038] (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;

[0039] (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;

[0040] (3) Obtain a filter cake after filtering the slurry obtained in step (2), and use compressed gas to dry the filter cake;

[0041] (4) washing the filter cake dried in step (3) with water until the pH value of the filtrate is 7 to 7.6, and then drying the washed filter cake with compressed air;

[0042] (5) heating the filter cake obtained in step (4) a...

Embodiment 1

[0057] 377g of calcium carbonate was dispersed in 3.2kg of a copper sulfate solution containing 700g of copper sulfate pentahydrate to form a mixed solution, and then the mixed solution was placed in a container. 89g of ammonia water was fed into the container containing the mixed solution at a flow rate of 0.5ml / min, and the stirring speed during the feeding was 150rpm. After the feeding was completed, the stirring was continued for 30 min. 382 g of sodium hydroxide solution was gradually fed into the above reaction system at a flow rate of 5 ml / min, 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 filter, and the filtrate is circulated until it is clear, and then the filter cake is blown dry with compressed air. The obtained f...

Embodiment 2～3

[0060] Except that the quality of the raw materials added was replaced by those shown in Table 1, the remaining steps and conditions were the same as in Example 1, and catalysts W and X were obtained in sequence.

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Abstract

The invention discloses a furfural hydrogenation catalyst containing rare earth elements and a preparation method thereof. The catalyst takes calcium carbonate as a carrier, takes copper oxide as an active component and takes a rare earth compound as an active aid; the weight of copper oxide is 28-75wt% of the total weight of the catalyst; the weight of the rear earth compound is 0.1-5wt% of the total weight of the catalyst. According to the furfural hydrogenation catalyst containing rare earth elements and the preparation method thereof, the production cost of the furfural hydrogenation catalyst is effectively controlled; and the furfural hydrogenation catalyst is extremely high in furfural conversion rate and hydrogenation selectivity.

Description

technical field [0001] The invention relates to a rare earth element-containing furfural hydrogenation catalyst and a preparation method thereof, in particular to a rare earth element-containing furfural hydrogenation catalyst to prepare furfuryl alcohol and a preparation method thereof. Background technique [0002] Furfuryl alcohol is 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. Furfuryl alcohol is mainly derived from the deep processing of furfural, and is a partially hydrogenated product in which the hydrogenation reaction only occurs on the carbonyl group. Furfural hydrogenation catalysts including SiO 2 Supported catalyst, TiO 2 -SiO 2 Supported catalyst, Al 2 o 3 supported catalysts, etc. Industrial furfural catalyst with Cu / SiO 2 Mainly, the advantage of this series of catalysts is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/232B01J23/83C07D307/44
CPCB01J23/83B01J27/232C07D307/44
Inventor 史建公刘志坚苏海霞张毅罗道威张文平张敏宏张新军蒋绍洋桂建舟刘丹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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