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Preparation method of 2, 5-furandimethanol di-tert-butyl ether

A technology of furandimethanol and di-tert-butyl ether, which is applied in the field of preparation of 2,5-furan-dimethanol di-tert-butyl ether, can solve the problems of production and application limitation of disubstituted furan derivatives, high production cost and the like, Achieve high industrial application prospects, reduce waste liquid and waste residue, and achieve high selectivity

Active Publication Date: 2021-09-10
ZHEJIANG SUGAR ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high production cost of HMF, since the 1980s, HMF has not yet been industrialized. The efficient conversion and utilization of HMF has become one of the difficulties in scientific research, which has led to the development of 2,5-furan di The production and application of a series of disubstituted furan derivatives such as methanol di-tert-butyl ether are greatly restricted

Method used

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  • Preparation method of 2, 5-furandimethanol di-tert-butyl ether
  • Preparation method of 2, 5-furandimethanol di-tert-butyl ether
  • Preparation method of 2, 5-furandimethanol di-tert-butyl ether

Examples

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Effect test

Embodiment 1

[0064] The acid treatment of embodiment 1β molecular sieve

[0065] details as follows:

[0066] (1) Take 12.6g of oxalic acid and gradually dissolve it into 1L of deionized water to make a 0.1mol / L acid solution, and add the solution into a 2L three-necked flask.

[0067] (2) Then add 50 g of β molecular sieves into the three-necked flask in step (1), raise the temperature of the whole system to 80° C., reflux and stir for 1 hour after stabilization, and then cool to room temperature.

[0068] (3) Suction filter the reaction liquid in step (2), and dry the obtained filter cake in an oven at 100° C., then roast in a muffle furnace at 550° C. for 6 hours, and seal and pack it for later use after cooling.

Embodiment 2

[0069] Example 2 Preparation of 2,5-furandimethanol di-tert-butyl ether

[0070] (1) Add 60ml of tert-butanol into a 100ml three-necked flask and heat to 60°C.

[0071] (2) Add 3g of 2,5-furandimethanol to the above system, add 0.5g of the β molecular sieve in Example 1, raise the temperature of the whole system to 90°C, reflux and stir for 2 hours after stabilization, stop the reaction, take a sample and dilute it with methanol Analyzed by gas chromatography.

Embodiment 3

[0072] Example 3 Preparation of 2,5-furandimethanol di-tert-butyl ether

[0073] (1) Add 60ml of tert-butanol into a 100ml three-necked flask and heat to 60°C.

[0074] (2) Add 3g of 2,5-furandimethanol to the above system, add 1.0g of the β molecular sieve in Example 1, raise the temperature of the whole system to 90°C, reflux and stir for 2 hours after stabilization, stop the reaction, take a sample and dilute it with methanol Analyzed by gas chromatography.

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Abstract

The invention discloses a preparation method of 2, 5-furandimethanol di-tert-butyl ether, which comprises the steps of reacting raw materials containing 2, 5-furandimethanol and tert-butyl alcohol under the action of a catalyst to obtain the 2, 5-furandimethanol di-tert-butyl ether, wherein the catalyst comprises a beta molecular sieve subjected to acid treatment. The catalyst used in the method is the beta molecular sieve subjected to acid treatment, the catalytic activity is high, the catalyst used in the reaction can be recycled and reused, the cost is effectively reduced, meanwhile, generation of waste residues is reduced, and the method is a novel environment-friendly method and has a very high industrial application prospect.

Description

technical field [0001] The application relates to a preparation method of 2,5-furandimethanol di-tert-butyl ether, which belongs to the field of chemical industry. Background technique [0002] Since entering the 21st century, the sources of chemicals and fuels have become more and more diversified, and the proportion of chemicals and fuels based on petroleum is gradually decreasing. The development of new energy and new materials has become a hot topic in the field of scientific research. Among them, biomass is regarded as an ideal source of raw materials because of its abundant reserves, wide range of sources and renewability. [0003] Furanyl methanol di-tert-butyl ether is a new type of diesel additive, which can significantly increase the cetane number of diesel. The traditional synthesis method of 2,5-furandimethanol dialkyl ether is to use 5-hydroxymethylfurfural (HMF) as the substrate and prepare it through selective hydrogenation and etherification. For example, p...

Claims

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Application Information

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IPC IPC(8): C07D307/42
CPCC07D307/42
Inventor 陈晨王磊张宇金海涛胡云函何凤林
Owner ZHEJIANG SUGAR ENERGY TECH CO LTD
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