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Preparation method of furan bio-based dibutyl ester

A technology of butyl dibutyl ester and furandicarboxylic acid, which is applied in the field of preparation of furan bio-based dibutyl ester, can solve the problems of increased production cost, potential safety hazards, high reaction temperature, etc., and achieve high production efficiency and mild reaction conditions , the effect of high product purity

Inactive Publication Date: 2019-01-18
沈阳开拓利思科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high reaction temperature and high-purity, high-pressure CO2 atmosphere requirements, not only the production cost is increased, there are safety hazards in the operation process, but also the yield is low
Therefore, it is difficult to apply in industry

Method used

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  • Preparation method of furan bio-based dibutyl ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of n-Butyl 2,5-furandicarboxylate Catalyzed by Sulfuric Acid

[0027] Measure 25ml of n-butanol into a two-necked flask, add 4g of FDCA, and add 0.75ml of concentrated sulfuric acid at the same time, and react under reduced pressure (0.08MPa) at a reaction temperature of 85°C for 5 hours, with a yield of 99.31%.

Embodiment 2

[0029] Preparation of Isobutyl 2,5-furandicarboxylate Catalyzed by Sulfuric Acid

[0030] Measure 25ml of isobutanol into a two-necked flask, add 3.5g of FDCA, and add 1ml of sulfuric acid at the same time, and react under reduced pressure (0.07MPa) at a reaction temperature of 90°C for 7 hours, with a yield of 98.11%.

Embodiment 3

[0032] Hydrochloric Acid Catalyzed Preparation of Isobutyl 2,5-Furandicarboxylate

[0033] Measure 25ml of isobutanol into a two-necked flask, then add 2.5g of FDCA, and at the same time add 0.75ml of hydrochloric acid, and react under reduced pressure (0.07MPa) at a reaction temperature of 90°C for 8 hours, with a yield of 92.31%.

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Abstract

The invention discloses a preparation method of furan bio-based dibutyl ester. The preparation method comprises the following steps: adding 2,5-furanedicarboxylic acid as a raw material in a butanol solution, and then adding an acid catalyst for an esterification dehydration reaction under reduced pressure to prepare 2,5-dibutyl furandicarboxylate. The preparation method has the advantages that reaction conditions are mild, yield is larger than or equal to 75%, the catalyst is cheap and easily available, production efficiency is high, the process is simple, and the product purity is high, so that the preparation method has great application value.

Description

technical field [0001] The invention relates to a method for preparing a plasticizer, in particular to a method for preparing a furan bio-based dibutyl ester. Background technique [0002] Since plastic was invented more than a century ago, it has gradually transitioned to become a necessity in people's daily life and developed into a global industry. And based on its own excellent characteristics, plastics can still exhibit excellent performance in changing application environments, but to a large extent, plastics must rely on the use of various material additives. As an important material additive, plasticizer accounts for about one-third of the total consumption in the global plastic additives market. Among them, the output of phthalate plasticizers is the highest and the most widely used. However, in recent years, more and more studies on the harm of phthalates to human health have been reported. In animal experiments, phthalates exhibit potential endocrine disrupting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/68
CPCC07D307/68
Inventor 不公告发明人
Owner 沈阳开拓利思科技有限公司