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Method for catalyzed synthesis of butyl oleate with oleic acid-based ionic liquid microemulsion

An ionic liquid, butyl oleate technology, applied in chemical instruments and methods, preparation of organic compounds, preparation of carboxylic acid esters, etc., can solve problems such as environmental risks, achieve low environmental impact, increase contact area, and speed up reaction rate Effect

Active Publication Date: 2019-06-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional organic solvents (such as cyclohexane and toluene) as the non-polar phase of microemulsions have environmental risks

Method used

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  • Method for catalyzed synthesis of butyl oleate with oleic acid-based ionic liquid microemulsion
  • Method for catalyzed synthesis of butyl oleate with oleic acid-based ionic liquid microemulsion
  • Method for catalyzed synthesis of butyl oleate with oleic acid-based ionic liquid microemulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Oleic acid-based ionic liquid microemulsion components and their dosage: 1.4 parts by weight of [Bmim]BF 4 , 39.8 parts by weight of oleic acid, 22.0 parts by weight of Triton X-100, 5.5 parts by weight of 1-hexyl-3-methylimidazolium bisulfate, 31.3 parts by weight of n-butanol;

[0033] At 30°C, mix Triton X-100 and 1-hexyl-3-methylimidazolium bisulfate evenly, stir at a speed of 300 rpm, and stir for 5 minutes to obtain a clear and transparent mixture, then add oleic acid Mix it with n-butanol at a stirring speed of 300 rpm, and stir for 15 minutes to obtain a clear and transparent mixture, and finally [Bmim] BF 4 Add it into the mixture and stir for 5 minutes to obtain a clear and transparent oleic acid-based ionic liquid microemulsion.

[0034] Take 50.98g of oleic acid-based ionic liquid microemulsion, and carry out esterification reaction under nitrogen atmosphere and heating and stirring, wherein the stirring speed is 600 rpm, the reaction temperature is 100°C, ...

Embodiment 2

[0037] Oleic acid-based ionic liquid microemulsion components and their dosage: 1.4 parts by weight of [Bmim]BF 4 , 40.5 parts by weight of oleic acid, 21.9 parts by weight of Triton X-100, 4.8 parts by weight of 1-octyl-3-methylimidazolium bisulfate, 31.4 parts by weight of n-butanol;

[0038] At 28°C, mix Triton X-100 and 1-octyl-3-methylimidazolium bisulfate evenly, stir at 400 rpm for 8 minutes to obtain a clear and transparent mixture, then add oil The acid and n-butanol were mixed with it, the stirring speed was 400 rpm, and stirred for 10 minutes to obtain a clear and transparent mixture. [Bmim]BF drop by drop 4 Add it into the mixture and stir for 5 minutes to obtain a clear and transparent oleic acid-based ionic liquid microemulsion.

[0039]Take 51g of oleic acid-based ionic liquid microemulsion, and carry out esterification reaction under nitrogen atmosphere and heating and stirring, wherein the stirring speed is 600 rpm, the reaction temperature is 100°C, and the...

Embodiment 3

[0042] Oleic acid-based ionic liquid microemulsion components and their dosage: 2.2 parts by weight of [Bmim]BF 4 , 26.6 parts by weight of oleic acid, 36 parts by weight of Triton X-114, 7.2 parts by weight of 1-hexyl-3-methylimidazolium bisulfate, 28.0 parts by weight of n-butanol;

[0043] At 32°C, mix Triton X-114 and 1-hexyl-3-methylimidazolium bisulfate evenly at a stirring speed of 400 rpm for 10 minutes to obtain a clear and transparent mixture, then add oleic acid Mix it with n-butanol, stir at a stirring speed of 400 rpm, and stir for 10 minutes to obtain a clear and transparent mixture. [Bmim]BF drop by drop 4 Add it into the mixture and stir for 10 minutes to obtain a clear and transparent oleic acid-based ionic liquid microemulsion.

[0044] Take 6.94g of oleic acid-based ionic liquid microemulsion, and carry out esterification reaction under nitrogen atmosphere and heating and stirring, wherein the stirring speed is 600 rpm, the reaction temperature is 100°C, a...

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Abstract

The invention discloses a method for catalyzed synthesis of butyl oleate with an oleic acid-based ionic liquid microemulsion. The method comprises the following steps: (1) at 25-35 DEG C, uniformly mixing a surfactant with an imidazole disulfate ionic liquid so as to obtain a surfactant mixed solution, further uniformly mixing with oleic acid and n-butyl alcohol, finally adding an imidazole fluoborate ionic liquid, and stirring so as to obtain an oleic acid-based ionic liquid microemulsion; (2) putting the oleic acid-based ionic liquid microemulsion of the step (1) into a nitrogen atmosphere,heating, stirring to carry out reactions, separating, and purifying, thereby obtaining butyl oleate. The reaction process is gentle in condition, no conventional toxic organic solvent (such as cyclohexane and methylbenzene) except reactants is used, the idea of green and environment protection can be met, the product can be easily separated, and the product is light yellow or golden yellow and ishigh in yield.

Description

technical field [0001] The invention belongs to the technical field of butyl oleate preparation, in particular to a method for catalytically synthesizing butyl oleate with oleic acid-based ionic liquid microemulsion. Background technique [0002] Butyl oleate is a non-volatile light yellow oily liquid at normal temperature and pressure. It is mainly used as a plasticizer, lubricant and water repellent, and is widely used in rubber modification, fabric lubrication, dye production and leather processing. [0003] Butyl oleate contains unsaturated bonds, and the process of using traditional catalysts (such as sulfuric acid, phosphoric acid and hydrofluoric acid, etc.) to catalyze the preparation process has many by-products, dark product color, corrosion equipment and environmental pollution; ion exchange resins, zeolite and The use of catalysts such as solid heteropolyacids can overcome some of the shortcomings of traditional acid catalysts, but they have the problems of high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C69/58B01J31/02
Inventor 陈砺方泳华严宗诚
Owner SOUTH CHINA UNIV OF TECH
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