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Preparation method of lauroyl lysine

A technology of lauroyl lysine and lauric acid, which is applied in the field of preparation of lauroyl lysine, can solve the problems of environmental pollution, residual harmful substances in the finished product of lauroyl lysine, etc., and achieve good environment, good industrial production prospects and Application Potential, Pollution Reduction Effect

Pending Publication Date: 2017-12-19
上海鲍林化工有限公司
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a preparation method of lauroyl lysine, which solves the technical problems of environmental pollution caused by the organic solvent synthesis method in the prior art and harmful substance residues in the finished product of lauroyl lysine.

Method used

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Embodiment 1

[0023] Add 10 mol of lauric acid and 10 mol of lysine to the reactor, and at the same time add 20 mol of purified water into the reactor, place the reactor in a reaction box, adjust the temperature of the reaction box to 90°C, and react the reactants at this temperature for 3 hours; After the reaction is over, place the reaction product in a spray dryer to obtain lauric acid lysine salt particles; then place the lauric acid lysine salt particles in a microwave reactor, adjust the microwave power to 1200W, and the microwave temperature to 160°C , microwave reaction for 20min, to obtain the crude product of lauroyl lysine; add the crude product of lauroyl lysine to purified water, add hydrochloric acid dropwise at room temperature until the crude product of lauroyl lysine dissolves, and obtain the crude product of lauroyl lysine; Add activated carbon to the crude lauroyl lysine solution, heat up to 60°C, stir for 45 minutes, and filter; cool the filtrate obtained after filtration...

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Abstract

The invention discloses a preparation method of lauroyl lysine. The method comprises the following steps: carrying out a reaction on lauric acid or a lauric acid derivative and lysine or lysinate used as raw materials in pure water used as a solvent in a reaction kettle at 30-120 DEG C for 1-4 h, and carrying out spray drying to obtain lysine laurate particles; and carrying out a microwave reaction on the lysine laurate particles in a microwave device under a microwave power of 500-2000 W at a microwave temperature of 100-200 DEG C for 5-60 min to obtain crude lauroyl lysine, dissolving the crude lauroyl lysine in an inorganic acid, carrying out active carbon treatment, and adjusting the pH value by using an inorganic alkali to obtain the finished lauroyl lysine. Compared with the prior art, the method adopting the pure water as the reaction solvent to prepare the lauroyl lysine has the advantages of pollution reduction, good environment (no organic solvents), remarkable yield increase, provision of a cheap product for the technical field of the production of lubricants, good industrial production prospect and good application potential.

Description

technical field [0001] The invention belongs to the technical field of lubricant preparation, and in particular relates to a preparation method of lauroyl lysine. Background technique [0002] Lauroyl lysine is an amino acid derivative, its raw material is derived from natural products, it has good biodegradability and high safety. As a new type of lubricant, lauroyl lysine has the characteristics of high lubricity, smooth skin feel, low friction coefficient, antistatic, anti-oxidation, insoluble in water and most organic solvents, and is widely used in hair and Skin conditioner, foundation milk, blush liquid, high-end cleansing products and other products can also be added to the product to help the solvent colloid and improve the texture of the product. It can also be used in mica powder, TiO 2 surface treatment. At present, the production of lauroyl lysine is mainly based on chemical synthesis and enzyme-catalyzed synthesis. The traditional chemical method uses a large ...

Claims

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Application Information

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IPC IPC(8): C07C231/02C07C231/24C07C233/47
CPCC07C231/02C07C231/24C07C233/47
Inventor 宋建部
Owner 上海鲍林化工有限公司
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