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Method for preparing furfuralcohol through transfer hydrogenation by using metal hydroxide for catalyzing furfural

A hydroxide and transfer hydrogenation technology, which is applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve complex catalyst preparation process, long reaction time, Low product yield and other problems, to achieve the effect of easy recovery and reuse, short time consumption and high product yield

Inactive Publication Date: 2019-06-28
XINYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN 106543115 B discloses a method for preparing furfuryl alcohol by catalyzing furfural by hydrogen transfer reaction. The preparation process of the catalyst used in this patent is complicated and the cost is high; the product yield is low; the reaction time is long

Method used

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  • Method for preparing furfuralcohol through transfer hydrogenation by using metal hydroxide for catalyzing furfural

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of method that metal hydroxide catalyzes furfural transfer hydrogenation prepares furfuryl alcohol, comprises the following steps:

[0027] 1) Mix 1.0g furfural, 0.5g Zr(OH) 4 Join in the 100ml autoclave together with 19 g ethanol; After the autoclave is sealed, use N 2 Continuously replace the air in the kettle for 5 times, then raise the temperature to 180°C at a stirring speed of 500 rpm, and start timing; keep the temperature for 1.5 h, and then close the heating furnace of the reactor;

[0028] 2) Cool the reaction kettle to room temperature quickly, open the reaction kettle, take the supernatant liquid, conduct product analysis after centrifugal filtration, and calculate the yield of furfuryl alcohol by gas chromatography to reach 54.3%.

Embodiment 2

[0030] A kind of method that metal hydroxide catalyzes furfural transfer hydrogenation prepares furfuryl alcohol, comprises the following steps:

[0031] 1) Mix 1.0g furfural, 0.5g La(OH) 3 Join in the 100ml autoclave together with 19 g ethanol; After the autoclave is sealed, use N 2 Continuously replace the air in the kettle for 5 times, then raise the temperature to 180°C at a stirring speed of 400 rpm, and start timing; keep the temperature for 2 hours, and close the reactor heating furnace; quickly cool the reactor to room temperature, open the reactor, and take the upper layer The clear liquid was subjected to product analysis after centrifugal filtration, and the yield of furfuryl alcohol was calculated by gas chromatography to reach 45.4%.

Embodiment 3

[0033] A kind of method that metal hydroxide catalyzes furfural transfer hydrogenation prepares furfuryl alcohol, comprises the following steps:

[0034] 1) Mix 1.0g furfural, 0.5g Ti(OH) 4 Join in the 100ml autoclave together with 19 g ethanol; After the autoclave is sealed, use N 2 Continuously replace the air in the kettle for 5 times, then raise the temperature to 180°C at a stirring speed of 300 rpm, and start timing; keep the temperature for 1.5 h, and then close the heating furnace of the reactor;

[0035] 2) Cool the reaction kettle to room temperature quickly, open the reaction kettle, take the supernatant liquid, and conduct product analysis after centrifugal filtration. The yield of furfuryl alcohol can reach 14.2% according to gas chromatography analysis.

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Abstract

The invention discloses a method for preparing furfuralcohol through transfer hydrogenation by using metal hydroxide for catalyzing furfural. The method comprises the following steps that 1) the furfural, the metal hydroxide and low alcohol are mixed and then react for 1-3 hours at 160-200 DEG C under protective gas; 2) cooling is performed after the reaction is completed, supernatant liquid is taken, and a product is obtained through centrifugal filtration. The method for preparing the furfuralcohol through the transfer hydrogenation by using the metal hydroxide for catalyzing the furfural has the advantages that the metal hydroxide is taken as a catalyst, the catalyst can catalyze the furfural for transfer hydrogenation to prepare the furfuralcohol with high selectivity, the preparationis simple, the cost is very low, and the catalyst can be used repeatedly; the reaction system is simple, the environmental friendliness is achieved, the reaction condition is mild, the energy consumption is low, the consumed time is short, the catalyst and the product are separated easily, the yield of the product is high (can reach 99%), and the industrial application prospect is very broad.

Description

technical field [0001] The invention belongs to the technical field of biomass chemical industry, and in particular relates to a method for preparing furfuryl alcohol by metal hydroxide catalyzed transfer hydrogenation of furfural. Background technique [0002] Furfuryl alcohol is an important fine chemical raw material, which can be used as cold-resistant plasticizer, additive and rocket fuel, etc. It can also be used in synthetic fiber, foundry industry and drug synthesis, but its most important use is to synthesize various furans with excellent properties Resin (such as furan resin, furan phenolic resin, furan asphalt mastic, etc.). Furfuryl alcohol is an important chemical, belonging to "Platform Chemicals", which can be converted from biomass and has a very wide range of uses. [0003] In 1931, the American chemist Adkins realized furfural liquid-phase hydrogenation to furfuryl alcohol for the first time. The liquid-phase hydrogenation method usually uses copper chromi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/44B01J21/06B01J23/10B01J21/10B01J21/04B01J23/755
Inventor 赵耿叶诗凡布仁巴音
Owner XINYANG NORMAL UNIVERSITY