Method for preparing 2-methylfuran through furfural hydrogenation

A technology of methyl furan and furfural, applied in the field of preparation of 2-methyl furan, can solve the problem of low selectivity, achieve good effect, simple preparation process, and avoid pollution

Inactive Publication Date: 2019-07-26
HEILONGJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low selectivity when the existing Cu-Cr catalyst furfural hydrogen...

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  • Method for preparing 2-methylfuran through furfural hydrogenation

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specific Embodiment approach 1

[0014] Specific embodiment 1: This embodiment is a method for hydrogenating furfural to prepare 2-methylfuran, which is specifically completed according to the following steps:

[0015] Put the cobalt phosphide catalyst, furfural and solvent in the autoclave to obtain the mixture, replace the air in the autoclave with hydrogen, and continue to pass in hydrogen until the pressure in the autoclave reaches 0.5MPa~2.5MPa. The temperature is 0.5MPa~2.5MPa, the temperature is 180~230℃, and the reaction is magnetically stirred for 1h~5h under a hydrogen atmosphere, then cooled to room temperature, and the cobalt phosphide catalyst is separated to obtain 2-methylfuran.

[0016] The cobalt phosphide catalyst uses a chromium-free system to avoid environmental pollution and is an environmentally friendly catalyst.

[0017] The cobalt phosphide catalyst has high activity and selectivity, the conversion rate of furfural can reach 100%, and the selectivity of 2-methylfuran can reach over 89%. Com...

specific Embodiment approach 2

[0019] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the air in the autoclave is replaced with hydrogen for 3 to 4 times. Others are the same as the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment three: this embodiment is different from specific embodiment one or two in that the volume ratio of the furfural to the solvent in the mixture is 1:3-7. Others are the same as the first or second embodiment.

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Abstract

The invention relates to a 2-methylfuran preparation method, in particular to a method for preparing 2-methylfuran through furfural hydrogenation, and aims to solve the problem of low selectivity in existing 2-methylfuran preparation in which Cu-Cr catalysts with Cu as an active component are used for furfural hydrogenation. The method includes catalyzing furfural hydrodeoxygenation by a catalyst,namely cobalt phosphide, to obtain the 2-methylfuran. The method has the advantages that the conversion rate of furfural can reach 100%, and the selectivity of the 2-methylfuran reaches more than 89%; industrial production is easily achieved. The method is mainly applied to preparation of the 2-methylfuran through the furfural hydrodeoxygenation catalyzed by the cobalt phosphide catalyst.

Description

Technical field [0001] The invention relates to a method for preparing 2-methylfuran. Background technique [0002] Furfural is a fine chemical produced from renewable resources such as corn cobs, cottonseed husks, bagasse and other renewable resources. Its chemical properties are very active. Numerous derivatives can be obtained through various chemical reactions such as oxidation, hydrogenation, and condensation. , 2-Methylfuran is an important product produced by catalytic hydrogenation of furfural. [0003] 2-Methylfuran (2-MF for short) is an important organic chemical intermediate, widely used in medicine, pesticides, etc., especially in the pharmaceutical industry, 2-methylfuran can be used to prepare vitamin B, chloroquine phosphate And a variety of drugs such as Bamquine phosphate. Before the 1980s, 2-methylfuran was mainly obtained by catalytic oxidation of 1,3-pentadiene; after the 1980s, 2-methylfuran was mainly produced by hydrogenation of furfural. [0004] Industria...

Claims

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Application Information

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IPC IPC(8): C07D307/36B01J27/185
CPCC07D307/36B01J27/1853
Inventor 肖林飞杨圣文吴伟
Owner HEILONGJIANG UNIV
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