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Preparation method of ester ether compound and catalyst applied to method

A technology of ester ethers and compounds, which is applied in the field of biofuels, can solve the problems of unfavorable industrial production, high production cost, and large reaction energy consumption, and achieve the effects of favorable industrial production, high selectivity, and high reaction efficiency

Inactive Publication Date: 2016-03-09
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, the catalytic reaction process for preparing 4-ethoxyethyl valerate (EEP) or other substituent compounds from gamma-valerolactone (GVL) as a starting material requires relatively high requirements such as high temperature and high pressure. Under the condition of carrying out, reaction energy consumption is big, and production cost is high, is unfavorable for realizing industrialized production

Method used

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  • Preparation method of ester ether compound and catalyst applied to method
  • Preparation method of ester ether compound and catalyst applied to method
  • Preparation method of ester ether compound and catalyst applied to method

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The molecular sieve Beta was used as a catalyst to prepare 4-ethoxy ethyl valerate (EEP) by ring opening and etherification of γ-valerolactone (GVL). 100mg of catalyst is loaded into the reaction flask, 10g0.25M gamma-valerolactone (GVL) ethanol solution is added, the reaction temperature is 140°C, and the reaction is carried out for 5 hours under self-pressure conditions, and the conversion rate of gamma-valerolactone (GVL) is 76 %, the selectivity of 4-ethoxy ethyl valerate (EEP) was 96%.

[0019] When the molecular sieve materials used are MCM-22, ZSM-5, ZSM-11, USY, Al-SBA-15 molecular sieves, similar technical effects can also be achieved.

Embodiment 2

[0021] The molecular sieve USY was used as a catalyst to prepare 4-ethoxy ethyl valerate (EEP) from γ-valerolactone (GVL) by ring opening and etherification. 100mg of catalyst is loaded into the reaction flask, 10g0.25M gamma-valerolactone (GVL) ethanol solution is added, the reaction temperature is 140°C, and the reaction is carried out for 7 hours under self-pressure conditions, and the conversion rate of gamma-valerolactone (GVL) is 42 %, the selectivity to 4-ethoxy ethyl valerate (EEP) was 63%.

Embodiment 3

[0023] Use molecular sieve Beta as a catalyst to prepare 4-ethoxy ethyl valerate (EEP) by ring-opening and etherification of γ-valerolactone (GVL), put 100mg catalyst in the reaction bottle, add 10g0.25Mγ-valerolactone Esters (GVL) ethanol solution, the reaction temperature is 160 ° C, reacted for 3 hours under self-pressure conditions, the conversion rate of γ-valerolactone (GVL) is 80%, the selection of ethyl 4-ethoxyvalerate (EEP) Sex is 89%.

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Abstract

The invention relates to biomass ester ether compounds and a preparation method thereof. The preparation method is implemented by taking gamma-valerolactone (GVL) prepared by biomass hydrolysis as a raw material through performing an esterification or etherification reaction on a molecular sieve catalyst under the condition that a micromolecular alcohol compound is simultaneously used as a solvent and a reactant, so that ester ether compounds such as 4-ethoxy ethyl valerate, 4-methoxy methyl valerate and 4-butyl valerate and the like are prepared. The preparation method disclosed by the invention has the advantages of mild reaction conditions, cheap and easily-obtained raw materials, high product selectivity, high reaction efficiency, and the like; and the ester ether compounds have good stability and oil solubility, and can be widely used as green biomass-based fuel oils or additives.

Description

technical field [0001] The invention relates to the field of biofuels, in particular to a method for preparing ester group ether biofuels by using gamma valerolactone as a raw material, and a catalyst used in the method. Background technique [0002] Ethyl 4-ethoxyvalerate (EEP) is non-toxic, biodegradable, stable and easy to store in large quantities. It is a new type of green solvent and an important organic intermediate. It has a wide range of applications in agriculture and industry. It is an organic compound that meets the requirements of gasoline, diesel and aviation kerosene. At present, the large-scale synthesis of ethyl 4-ethoxypentanoate (EEP) has not yet achieved industrial production. There are few reports about the synthetic route of 4-ethoxy ethyl valerate (EEP) in the existing literature. Reported in the document J.Org.Chem.1994,59,2253 with trimethyl orthoformate ((RO 3 ) CH) and H 2 SO 4 For the application of the catalyst in the homogeneous ring-openin...

Claims

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Application Information

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IPC IPC(8): C07C67/03C07C69/708
CPCB01J29/08B01J29/7007B01J29/7038C07C67/03C07C69/708
Inventor 关业军孙兴袁庆庆张沛
Owner EAST CHINA NORMAL UNIV
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