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Rare earth element-containing catalyst and preparation method thereof

A rare earth element and catalyst technology, which is applied to the catalyst and preparation field of furfural hydrogenation to prepare furfuryl alcohol, can solve the problems of catalyst occupation, high cost and the like, and achieves improved catalytic activity, good product stability, furfural conversion rate and hydrogenation selection. high sex effect

Active Publication Date: 2019-04-26
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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  • Rare earth element-containing catalyst and preparation method thereof
  • Rare earth element-containing catalyst and preparation method thereof
  • Rare earth element-containing catalyst and preparation method thereof

Examples

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Effect test

preparation example Construction

[0040] The present invention also provides a kind of preparation method of catalyst, it comprises the steps:

[0041] (1) Under continuous stirring, silicon source and ammonia flow are added to the copper sulfate solution to form a mixed solution; wherein, calcium carbonate is dispersed in the copper sulfate solution, and the silicon source is water glass or silicon Sol;

[0042] (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;

[0043] (3) Obtain a filter cake after filtering the slurry obtained in step (2), and use compressed gas to dry the filter cake;

[0044] (4) washing the filter cake dried in step (3) with water until the pH value of the filtrate is 7 to 7.8, and then drying the washed filter cake with compressed air;

[0045] (5) heating t...

Embodiment 1

[0067] (1) 15.1g calcium carbonate is dispersed in the copper sulfate solution containing 140g copper sulfate pentahydrate to form mixed solution, then this mixed solution is placed in container. Add 178g of water glass and 10.67g of ammonia water into the separatory funnel respectively, and then add the water glass and ammonia water into the container containing the mixed solution in a double parallel flow according to the flow rate of water glass 10ml / min and ammonia water 0.44ml / min In the feeding process, the stirring speed was 150rpm. After the feeding was completed, the stirring was continued for 30 min.

[0068] (2) According to the flow rate of 5ml / min, 76.47g of sodium hydroxide solution was gradually fed into the above reaction system, and the stirring speed during the feeding process was 150rpm. 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 esca...

Embodiment 2

[0077] Except that potassium oxide powder was replaced by magnesium oxide, other steps and conditions were the same as in Example 1 to obtain catalyst L.

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Abstract

The invention discloses a catalyst containing a rare earth element and a preparation method thereof. The catalyst is a catalyst for preparing furfuryl alcohol through furfural hydrogenation, and takes calcium carbonate and silicon dioxide as carriers, copper oxide as an active component and a rare earth compound as an active auxiliary agent; the weight of the copper oxide is 25wt%-72wt% of the total weight of the catalyst; and the weight of the active auxiliary agent is 0.2wt%-3wt% of the total weight of the catalyst. According to the catalyst disclosed by the invention, the production cost is controlled within a reasonable range, and the furfural conversion rate and the hydrogenation selectively are high.

Description

technical field [0001] The invention relates to a catalyst containing rare earth elements and a preparation method thereof, in particular to a catalyst for preparing furfuryl alcohol by hydrogenating furfural containing rare earth elements 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. 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. Current production methods include liquid-phase and gas-phase methods. [0003] Furfural hydrogenation catalysts including SiO 2 Supported catalyst, TiO 2 -SiO 2 Supported catalyst, Al 2 o 3 Supported catalysts, hydrotalc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/232C07D307/44
CPCB01J27/232C07D307/44
Inventor 史建公刘志坚张毅罗道威张文平苏海霞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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