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Catalyst 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 occupation, large cost, etc., to improve catalytic activity, reduce production cost, and improve furfural conversion rate. and the effect of hydrogenation selectivity

Active Publication Date: 2017-05-24
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 and preparation method thereof
  • Catalyst and preparation method thereof
  • Catalyst and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0046] The present invention also provides a kind of preparation method of catalyst, it comprises the steps:

[0047] (1) under continuous stirring, the silicon source and the ammonia flow are added to the copper sulfate solution to form a mixed solution;

[0048] (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;

[0049] (3) Obtain a filter cake after filtering the slurry obtained in step (2), and use compressed gas to dry the filter cake;

[0050] (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;

[0051] (5) Heating the filter cake obtained in step (4) at 105-115° C. until the dry basis of the catalyst is not less than 98 wt%, and then ...

Embodiment 1

[0070] (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 120rpm. After the feeding was completed, the stirring was continued for 30 min.

[0071](2) According to the flow rate of 5 ml / min, 76.47 g of sodium hydroxide solution was gradually fed into the above reaction system, and the stirring speed during the feeding process was 120 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 es...

Embodiment 2～4

[0077] Except that the quality of the raw materials added was replaced with those shown in Table 1, the remaining steps and conditions were the same as in Example 1, and catalysts B, C and D were obtained in sequence.

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Abstract

The invention discloses a catalyst and a preparation method thereof. The catalyst is used for furfural hydrogenation for preparing furfuryl alcohol, and adopts calcium carbonate and silica as a carrier and copper oxide as an active component; and the weight of the copper oxide is 30-75% of the total weight of the catalyst. The catalyst has the advantages of reduced production cost, high furfural conversion rate and high hydrogenation selectivity.

Description

technical field [0001] The invention relates to a catalyst and a preparation method thereof, in particular 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 bind...

Claims

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Application Information

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IPC IPC(8): B01J27/232C07D307/44
CPCB01J27/232C07D307/44
Inventor 史建公刘志坚张文平罗道威苏海霞张毅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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