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Preparation method of hexadecyl glucopyranoside

A technology based on glucoside and palmitane, which is applied in the field of non-ionic surfactant preparation, can solve the problems of long condensation reaction time, long reaction time, and slow reaction speed, and achieve the goal of improving reaction rate and yield and reducing sugar The side reaction occurs, the effect of improving the conversion rate and rate

Active Publication Date: 2014-12-10
扬州晨化新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010](3) Most of the currently reported one-step methods for preparing palm alkyl glucoside use anhydrous glucose as raw material instead of cheap glucose, which produces relatively high cost
[0011](4) Difficult process operation and control, low production efficiency and low yield
[0012](5) Hydrogen peroxide is used as oxidant for decolorization, the decolorization and bleaching effect is poor, and the decolorization stability is poor

Method used

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  • Preparation method of hexadecyl glucopyranoside

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The main process equipment is: stirring equipment, condensation reactor, decompression flash reaction equipment, neutralization reactor, molecular distillation dealcoholization equipment, decolorization and impurity removal equipment, solid-liquid separation equipment, deployment and mixing equipment, etc., among which the condensation reactor is The jet flow chemical reactor, the decompression flash equipment is a flash tank, the neutralization reactor is a tank type stirred chemical reactor, the molecular distillation dealcoholization equipment is a molecular distillation equipment, and the decolorization and impurity removal equipment is a flat-plate electrochemical reactor. The stirring equipment is a tank reactor, and the mixing equipment is a mixing tank.

[0047] As shown in the figure, a kind of method for preparing palm alkyl glucoside is to be the method for raw material preparation palm alkyl glucoside aqueous solution with cetyl alcohol and glucose, and descr...

Embodiment 2

[0058] Main process equipment is: basically the same as embodiment one, the difference is that the condensation reactor is an impingement flow chemical reactor, and the decolorization and impurity removal equipment is a fixed bed electrochemical reactor.

[0059] As shown in the figure, a kind of method for preparing palm alkyl glucoside is to be the method for raw material preparation palm alkyl glucoside aqueous solution with cetyl alcohol and glucose, and described method step is as follows:

[0060] (1) Preparation of sugar solution: 10 kg of water was added to the tank reactor, and then 10 kg of glucose was added thereto, and the mass ratio of glucose to water was 1.0: 1.0;

[0061] (2) Preheating and heating: heat the sugar liquid material obtained in the previous step to 90°C, and then keep it warm;

[0062] (3) Condensation reaction: The sugar solution preheated in the previous step and the alkyd mixture material that has been preheated to 170°C are respectively filter...

Embodiment 3

[0070] The main process equipment is: basically the same as in Example 1, the difference is that the condensation reactor is a plug-flow chemical reactor, and the decolorization and impurity removal equipment is a fluidized bed electrochemical reactor.

[0071] As shown in the figure, a kind of method for preparing palm alkyl glucoside is to be the method for raw material preparation palm alkyl glucoside aqueous solution with cetyl alcohol and glucose, and described method step is as follows:

[0072] (1) Preparation of sugar solution: 10 kg of water was added to the tank reactor, and then 9 kg of glucose was added thereto, and the mass ratio of glucose to water was 0.9: 1.0;

[0073] (2) Preheating and heating: heat the sugar liquid material obtained in the previous step to 100°C, and then keep it warm;

[0074] (3) Condensation reaction: The sugar solution preheated in the previous step and the alkyd mixture material that has been preheated to 185°C are respectively filtered...

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Abstract

The invention relates to a preparation method of hexadecyl glucopyranoside. Hexadecanol and glucopyranoside as raw materials are prepared into a hexadecyl glucopyranoside aqueous solution. The preparation method comprises the following steps of 1, glucose liquid preparation, 2, pre-heating for temperature increasing, 3, a condensation reaction, 4, reduced pressure flashing, 5, pH value adjustment, 6, solid-liquid separation, 7, molecular distillation alcohol-removal, 8, decoloration purification, and 9, blending. The preparation method has the advantages that a process flow is reasonable and convenient; reaction time is short; a production cost is low; quality is stable; a yield is high; reaction processes are safe and reliable; favorable conditions of separation and refining of chemical reaction products are provided; conditions of process industrialization are provided; and the preparation method is simple, convenient and fast.

Description

Technical field [0001] The present invention involves a method for preparation of non -ion surfactants, which specializes in a glucose and hexoliol as the raw material through sugar liquid preparation, warming up, contraction reaction, decompression flashing, regulating pH value, molecular distillation, molecular distillationThe method of removing alcohol, desertation, and mixing mixed with palm alkyl glucoside belongs to the field of fine chemical technology. Background technique [0002] Alkyl glycoside is referred to as APG, which is synthesized by natural fattyol and glucose of renewable resources. It is a new type of non -ion surfactant with more comprehensive performance. It has excellent ecological and toxic properties and outstanding physical chemical properties and good properties and good.Compatible performance, low surface tension, humidity, strong decontamination power, rich and delicate foam, can be reproduced with any type of surface active agent, the synergistic ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H15/04C07H1/00
Inventor 董晓红姚干兵于子洲许文林姜海峰
Owner 扬州晨化新材料股份有限公司
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