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Preparation method and application of fatty acid monoglyceride

A monoglyceride and fatty acid technology, applied in the field of chemical synthesis, can solve the problems of troublesome post-processing of boric acid, high reaction temperature, long reaction time, etc., and achieve the effects of short reaction time, low reaction temperature and mild reaction conditions

Inactive Publication Date: 2012-10-03
NEUFTECH BIOTECH HEFEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, chemical synthesis methods mainly include KF / ZO solid base catalysis method, direct esterification method, p-toluenesulfonic acid catalysis method, ion exchange resin catalysis method, etc. These chemical synthesis methods either have high reaction temperature or long reaction time and low conversion rate. Low, some also need to introduce boric acid to protect hydroxyl group for synthesis, and the introduced boric acid will bring trouble to post-processing

Method used

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  • Preparation method and application of fatty acid monoglyceride
  • Preparation method and application of fatty acid monoglyceride
  • Preparation method and application of fatty acid monoglyceride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 92g of glycerol and 200g of lauric acid into a flat-bottomed flask, stir evenly, add 0.73g of N-alkylpyrrolidone group toluenesulfonic acid ionic liquid catalyst, stir, heat, control the temperature to 90°C, and react for 2 hours, namely The final product was obtained with an acid value of 36.2 mgKOH / g.

Embodiment 2

[0026] Weigh 92g of glycerol and 200g of lauric acid into a flat-bottomed flask, stir evenly, add 0.73g of N-alkylpyrrolidone group toluenesulfonic acid ionic liquid catalyst, stir, heat, control the temperature to 100°C, and react for 3 hours, namely The final product was obtained with an acid value of 24.9 mgKOH / g.

Embodiment 3

[0028] Weigh 92g of glycerol and 200g of lauric acid into a flat-bottomed flask, stir evenly, add 0.73g of N-alkylpyrrolidone group toluenesulfonic acid ionic liquid catalyst, stir, heat, control the temperature to 110°C, and react for 4 hours, namely The final product was obtained with an acid value of 15.0 mgKOH / g.

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Abstract

The invention discloses a preparation method of fatty acid monoglyceride. The mole ratio of reaction raw materials of fatty acid to glycerol is 1:1, N-alkyl pyrrolidone group toluene sulfonic acid ionic liquid catalysts are used, the esterification reaction temperature is 90 to 110 DEG C, and the reaction lasts 2 to 4 hours at the normal pressure. The N-alkyl pyrrolidone group toluene sulfonic acid ionic liquid catalysts are selected, the catalyst addition quantity is small, the reaction condition is mild, and the catalytic efficiency is high. The lauric acid monoglyceride prepared by the invention has good biological degradability and has emulsification, lubrication and corrosion prevention functions, in the special oil, the lauric acid monoglyceride is used for replacing partial emulsion lubricating agents, the emulsification, lubrication and corrosion prevention functions of the special oil can be improved, and the service life of the special oil can be prolonged.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and in particular relates to a preparation method of fatty acid monoglyceride, and also relates to the application of the fatty acid monoglyceride in special oils. Background technique [0002] Fatty acid monoglycerides are widely used in daily life and industrial production, and the more commonly used ones include lauric acid, caprylic acid, oleic acid, stearic acid and palmitic acid monoglycerides. Among them, monoglycerol laurate, also known as glycerol monolaurate (GML for short), is not only an excellent emulsifier, but also a safe, efficient and broad-spectrum antibacterial agent, and is not limited by pH. Under slightly alkaline conditions, it still has a good antibacterial effect, especially suitable for the application in the special oil industry. [0003] Monolauric acid monoglyceride is a safe and efficient broad-spectrum fungicide, which can inhibit HIV virus, cytomegalovirus, herpe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C69/003C07C69/30C07C69/58C10M105/40C10N40/22
Inventor 程庆华陆静
Owner NEUFTECH BIOTECH HEFEI
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