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Modified alkyl alcohol ether sulfate and preparation thereof

A technology of alkyl sulfate and alkyl alcohol ether, which is applied in the field of daily chemicals, can solve problems such as difficulty, and achieve the effects of improved thickening power, improved difficult-to-rinse performance, and refreshing skin feel

Inactive Publication Date: 2009-05-27
广州市日用化学工业研究所有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the sulfonation of higher alcohols, it is necessary to ensure a certain temperature so that the higher alcohols can react smoothly, and to control the reaction temperature to avoid the occurrence of side reactions. There are certain difficulties in actual production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] in C 8-14 EO 1-3 C is mixed into the alkyl alcohol ether raw material 16-18 Alcohol (C 16 Alcohol 70%, percent by weight), C 8-14 EO 1-3 The alkyl alcohol ether and C 16-18 The weight ratio of alcohol is 90:10; in the raw material configuration tank, the temperature is controlled at 35°C, heated and stirred evenly. Use SO 3 The gas is used as a sulfation reagent to react with the prepared raw materials in the sulfonation reactor, using the following conditions: SO 3 The molar ratio to the raw material is slightly greater than 1:1, SO 3 The gas concentration is 3-3.5% (V:V), the feed temperature is 30°C, the temperature of the jacket cooling water of the sulfonation reactor is 30-40°C, and the temperature of the sulfuric acid ester is 45-55°C. The sulfuric acid ester is immediately neutralized with an alkaline neutralizing agent (such as potassium hydroxide, sodium hydroxide, ammonia, monoethanolamine, triethanolamine) after coming out of the sulfonation reactor....

Embodiment 2

[0022] in C 8-14 EO 1-3 C is mixed into the alkyl alcohol ether raw material 16 Alcohol, C 8-14 EO 1-3 The alkyl alcohol ether and C 16 The weight ratio of alcohol is 90:10; in the raw material configuration tank, the temperature is controlled at 30°C, heated and stirred evenly. Use SO 3 The gas is used as a sulfation reagent to react with the prepared raw materials in the sulfonation reactor, using the following conditions: SO 3 The molar ratio to the raw material is slightly greater than 1:1, SO 3 The gas concentration is 3-3.5% (V:V), the feed temperature is 30°C, the temperature of the jacket cooling water of the sulfonation reactor is 30-35°C, and the temperature of the sulfuric acid ester is 45-50°C. The sulfuric acid ester is immediately neutralized with an alkaline neutralizing agent (such as potassium hydroxide, sodium hydroxide, ammonia, monoethanolamine, triethanolamine) after coming out of the sulfonation reactor. The reaction temperature of the neutralizat...

Embodiment 3

[0024] in C 8-14 EO 1-3 C is mixed into the alkyl alcohol ether raw material 18 Alcohol, C 8-14 EO 1-3 The alkyl alcohol ether and C 18 The weight ratio of alcohol is 90:10; in the raw material configuration tank, the temperature is controlled at 35°C, heated and stirred evenly. Use SO 3 The gas is used as a sulfation reagent to react with the prepared raw materials in the sulfonation reactor, using the following conditions: SO 3 The molar ratio to the raw material is slightly greater than 1:1, SO 3The gas concentration is 3-3.5% (V:V), the feed temperature is 35°C, the temperature of the jacket cooling water of the sulfonation reactor is 30-40°C, and the temperature of the sulfuric acid ester is 45-55°C. The sulfuric acid ester is immediately neutralized with an alkaline neutralizing agent (such as potassium hydroxide, sodium hydroxide, ammonia, monoethanolamine, triethanolamine) after coming out of the sulfonation reactor. The reaction temperature of the neutralizati...

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PUM

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Abstract

The invention belongs to the field of daily chemistry and discloses modified alkyl alcohol ether sulfate. Effective compositions of the modified alkyl alcohol ether sulfate account for 100 portions by weight portion and comprise no less than 35 weight portions of alkyl ether sulfate with carbochain distribution number of between 8 and 14 and average epoxyethane distribution number of between 1 and 3, no less than 3 weight portions of C16 alkyl sulfate and / or no less than 3 weight portions of C18 alkyl sulfate. The invention also discloses a preparation method thereof. The related modified alkyl alcohol ether sulfate remarkably improves thickening capacity and can reach large viscosity under the regulation of a little electrolyte. The modified alkyl alcohol ether sulfate can reduce the use amount of the electrolyte in the formula, can use less or no thickening agent, can decrease the washing difficulty of common alkyl alcohol ether sulfate to some extent and brings fresh skin sense.

Description

technical field [0001] The invention belongs to the field of daily chemicals and relates to a modified alkyl alcohol ether sulfate and a preparation method thereof. Background technique [0002] The average carbon chain length is 8 to 14, and the alkyl alcohol ether sulfate (abbreviated as "C 8-14 EO 1-3 The alkyl alcohol ether sulfate ") has excellent performance in terms of mildness, foam, thickening power, etc., and is widely used in detergents such as shower gel, shampoo, hand sanitizer, and detergent. In order to adapt In order to meet the needs of consumers, personal care products such as shower gels and detergents need to have a certain viscosity. In order to achieve the required viscosity, the formulator usually selects raw materials with good thickening ability and mixes them with a certain amount of thickener. Common alkyl alcohol ether sulfates that are widely used at present are easy to be regulated by electrolytes to increase the viscosity of the formula, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/62C07C303/06
Inventor 陈武渊赵建红王志刚刘保王海丰
Owner 广州市日用化学工业研究所有限公司
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