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Copper-containing catalyst and preparation method thereof

A catalyst and hydrogen preparation technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of catalyst occupation and high cost, and achieve improved catalytic activity, reduced production costs, and low cost 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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  • Copper-containing catalyst and preparation method thereof
  • Copper-containing catalyst and preparation method thereof
  • Copper-containing catalyst and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0041] The present invention also provides a kind of preparation method of catalyst, it comprises the steps:

[0042] (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;

[0043] (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;

[0044] (3) Obtain a filter cake after filtering the slurry obtained in step (2), and use compressed gas to dry the filter cake;

[0045] (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;

[0046] (5) heating the...

Embodiment 1

[0068] (1) 151g calcium carbonate is dispersed in the copper sulfate solution that contains 1.4kg copper sulfate pentahydrate to form mixed solution, then this mixed solution is placed in container. Add 1.78kg of water glass and 107g 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 120rpm. After the feeding was completed, the stirring was continued for 30 min.

[0069] (2) According to the flow rate of 5ml / min, 765g of sodium hydroxide solution was gradually fed into the above reaction system, and the stirring speed during the feeding process was 120rpm. 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 esc...

Embodiment 2

[0076] Except that potassium oxide powder was replaced by magnesium oxide, other steps and conditions were the same as in Example 1 to obtain catalyst G.

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Abstract

The invention discloses a copper-containing catalyst and a preparation method thereof. The catalyst is a catalyst for preparing furfuryl alcohol by furfural hydrogenation. The copper-containing catalyst takes calcium carbonate and silicon dioxide as carriers, takes copper oxide as an active ingredient and takes an alkali metal compound or an alkali earth metal compound as an active auxiliary agent, wherein the weight of the copper oxide accounts for 30wt%-75wt% of the total weight of the catalyst, and the weight of the active auxiliary agent accounts for 0.1wt%-6wt% of the total weight of the catalyst. According to the catalyst disclosed by the invention, the production cost is reduced, and the furfural conversion rate and the hydrogenation selectivity keep relatively high levels.

Description

technical field [0001] The invention relates to a copper-containing catalyst and a preparation method thereof, in particular to a copper-containing furfural hydrogenation catalyst for preparing furfuryl alcohol 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. The current production methods include liquid-phase method and gas-phase method. [0003] In 1931, Cu-Cr catalyst for liquid-phase hydrogenation was first used for liquid-phase catalytic hydrogenation of furfural, and it was industrialized in 1948. Some ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/232
CPCB01J27/232
Inventor 史建公刘志坚张毅桂建舟刘丹罗道威张文平张敏宏张新军蒋绍洋苏海霞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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