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Method for producing hyamine

A technology of quaternary ammonium salt and monohydric alcohol is applied in the field of preparation of cationic surfactants, which can solve the problems of unsafe production, storage and transportation, human harm and the like, and achieve the effects of safe production, storage and transportation and convenient preparation.

Inactive Publication Date: 2007-08-01
上海高维化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technologies disclosed in the above-mentioned patents all use low-boiling point alcohols or other solvents, such as C 1 ~C 4 Alcohol is used as the reaction medium, therefore, the product contains a small amount of low-boiling alcohol, and the mentioned low-boiling alcohol is flammable and explosive, and has certain harm to the human body. Therefore, not only the production, storage and transportation are not safe , and not suitable for use in the formulation of daily chemical products and textile products

Method used

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  • Method for producing hyamine
  • Method for producing hyamine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put 117.5g of cetearyl alcohol and 100g of cetearyl tertiary amine into the reaction vessel. 17.5 g of methyl chloride was introduced, the reaction temperature was 100° C., the pressure was 196 KPa (gauge pressure), and the reaction was carried out for 4 hours. The reaction was stopped to obtain the product, which was a white solid, and the active matter content of the analyzed product was 51.74%.

Embodiment 2

[0031] 40g dodecyl / tetradecyl alcohol, 65g dodecyl tertiary amine are dropped into reaction vessel. Pass into 11.4g methyl chloride, 85 ℃ of reaction temperature, pressure 147KPa (gauge pressure), after reacting for 1 hour, add 35g dodecyl / tetradecyl alcohol, continue reacting after 2.5 hours, stop reaction, obtain product, product is white solid, The active matter content of the analyzed product was 48.60%.

Embodiment 3

[0033] Put 70g of hexadecyl / octadecyl tertiary amine into the reaction vessel. Pass into 8g of methyl chloride. The reaction temperature was 90°C and the pressure was 294KPa (gauge pressure). After reacting for 1 hour, 27.4g of cetyl alcohol was added, and after continuing the reaction for 5 hours, the reaction was stopped to obtain the product. %.

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Abstract

A process for preparing quaternary ammonium salt features the reaction between R2X compound and C10-C24 tetraamine in C10-C22 unitary alcohol. Its advantages are high safety and no irritation to human body.

Description

technical field [0001] The present invention relates to a preparation method of a cationic surfactant, in particular to a preparation method of a quaternary ammonium salt, in particular to a method for preparing a quaternary ammonium salt with a tertiary amine as a raw material. Background technique [0002] Quaternary ammonium salt is a kind of surfactant and an important chemical raw material, especially widely used in daily chemical industry and textile field, and can be used as an active ingredient in hair, fabric softener or antistatic agent. [0003] At present, many patent documents disclose the method for preparing the quaternary ammonium salt shown in formula (1), such as: [0004] 1.USP Patent Num.5,696,292 Process for Producing Quarternary Ammonium Compounds. [0005] 2.USP Patent Num.5,545,749 Quaternary Ammonium Compounds with HighFlash And Method of Making The Samc. [0006] 3.USP Patent Num.5,491,240 Quaternary Compound of A Tertiary AmineAnd Methyl Chloride...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C211/63C07C209/12
Inventor 张未名卢春周天国
Owner 上海高维化学有限公司
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