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Preparation method of catalyst for effectively converting furfural into 2-methylfuran

A methylfuran catalyst, a catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as poor catalyst stability, achieve stable performance, Highly active and selective effect

Inactive Publication Date: 2019-03-19
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the catalyst gave a higher selectivity to 2-methylfuran, the stability of the catalyst was poor

Method used

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  • Preparation method of catalyst for effectively converting furfural into 2-methylfuran

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1 25.6 g of copper nitrate trihydrate was dissolved in 100 ml of deionized water, and then added to 250 ml of silica sol. Dissolve 32 grams of ammonium carbonate in 200ml of deionized water, then add the ammonium carbonate solution to the metal salt solution, and transfer it to a hydrothermal reaction kettle, react at 100°C for 4 hours, and then carry out distillation until the pH is 7 , and then filtered and washed, dried at 110°C for 12 hours, and then calcined at 400°C for 4 hours in a muffle furnace to prepare the catalyst.

Embodiment 2

[0030] Example 2 32 grams of copper nitrate trihydrate and 8.36 grams of barium nitrate were dissolved in 100 ml of deionized water, and then added to 250 ml of silica sol. Take 36 grams of urea and dissolve it in 100ml deionized water, mix the two solutions under stirring conditions, and transfer them to a hydrothermal reaction kettle, react at 100°C for 4 hours, then carry out distillation reaction until the pH is 7, and then After filtering and washing, it was dried at 110°C for 12 hours, and then calcined at 450°C for 4 hours in a muffle furnace to prepare the catalyst.

Embodiment 3

[0031] Example 3 Dissolve 32 grams of copper nitrate trihydrate in 150 ml of water and ethanol solution, H 2 O: C 2 h 5 OH=2, then added to 250ml silica sol. Take 36 grams of urea and dissolve it in 100ml deionized water, mix the two solutions under stirring conditions, and transfer them to a hydrothermal reaction kettle, react at 100°C for 4 hours, then carry out distillation reaction until the pH is 7, and then After filtering and washing, it was dried at 110°C for 12 hours, and then calcined at 450°C for 4 hours in a muffle furnace to prepare the catalyst.

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Abstract

The invention discloses a preparation method of a catalyst for effectively converting furfural into 2-methylfuran, and relates to a preparation method of a catalyst. The catalyst adopts a preparationmethod of solvothermal (water, alcohol and the like) uniform precipitation and distillation treatment to realize high dispersion of an active component Cu and effective synergistic combination with anauxiliary agent. The catalyst mainly comprises the following components in percentage by mass: 10-50% of CuO, 50-90% of silica or alumina, and 0-15% of other auxiliary agents. The catalyst is used for preparing 2-methylfuran through furfural gas phase hydrogenation, the furfural conversion rate is 100%, and the selectivity of the 2-methylfuran reaches more than 94%. According to the method, through effective combination with the Cu and the auxiliary agent, high dispersion of the Cu on the surface of a carrier and effective regulation and control of a Cu structure are realized, so that the catalyst has high activity and stability in furfural hydrogenation synthesis of the 2-methylfuran.

Description

technical field [0001] The invention relates to a preparation method of a catalyst, in particular to a preparation method of a catalyst for effectively converting furfural into 2-methylfuran. Background technique [0002] 2-Methylfuran is an important organic chemical raw material, which is widely used in medicine, pesticide and fine chemical industry. A series of organic chemicals can be synthesized from it, such as pentadiene, pentylene glycol, acetylpropanol and ketones; in the pharmaceutical industry, 2-methylfuran is used to prepare vitamin B 1 And anti-dysentery drugs chloroquine phosphate, primaquine phosphate, etc. The industrial production of 2-methylfuran is produced by catalytic hydrogenation of furfural, and the key to this process is the development of high-performance catalysts. The catalysts currently used in industry are mainly Cu-Cr catalysts, which are very expensive. [0003] Using CuO-Cr 2 o 3 / Graphite or alumina is used as a catalyst, when the rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C07D307/36
CPCB01J23/72C07D307/36
Inventor 王康军丁玉山张雅静丁茯贾松岩
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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