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Process for preparing alkyl alcohol ether sulphonate or alkyl phenol ether sulphonate

A technology of alkylphenol ether sulfonate and hydroxyalkyl sulfonate, which is applied in the fields of sulfonate preparation, sulfonic acid preparation, organic chemistry, etc., and can solve problems such as affecting product composition, wasting raw materials, and difficult temperature control, etc. Achieve wide applicability, foam suppression, and easy control

Active Publication Date: 2008-11-12
中轻化工绍兴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) Reaction by vacuuming, a small amount of low boiling point raw materials and water will be taken away together, which not only wastes raw materials, but also affects the composition of products, and the temperature is difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: at first in a 500ml reactor with stirring, water trap is equipped with, add C 8 -C 10 Natural Fatty Alcohol Ether R-O-(EO) 30 H0.5mol, potassium hydroxide 0.5mol, cyclohexane 60ml, stirring and heating, azeotropic reflux dehydration for 2 hours, until clarified in the water separator, the water layer is no longer changed, so that it can fully generate C 8 -C 10 Potassium salt of natural fatty alcohol ethers. Secondly, the water separator is removed, and a distillation device is installed to fully distill the cyclohexane in the reactor. Then add 0.1mol potassium hydroxymethanesulfonate, 0.05mol catalyst potassium hydroxide, 100ml n-decane azeotropic reflux for 0.5 hours to obtain C 8 -C 10 Potassium Natural Fatty Alcohol Ether Sulfonate.

Embodiment 2

[0037] Embodiment 2: at first in a 500ml reactor with stirring, water trap is equipped with, add C 24 Alkylphenol ether R-O-(EO) 9 H0.3mol, metal sodium 0.3mol, octane 50ml, react with inert gas for 24 hours to make it fully generate C 24 Sodium salt of alkylphenol ether. Then add 0.5mol sodium isethionate, 0.3mol catalyst sodium hydroxide, and 130ml liquid paraffin into the reaction kettle, vacuumize and dehydrate at a temperature of 200-220°C, pass inert gas, and a vacuum degree of 0.001-0.006Mpa, React for 5 hours to get C 24 Sodium alkylphenol ether sulfonate, the yield is about 55%.

Embodiment 3

[0038] Embodiment 3: at first in a 500ml reactor with stirring, water trap is equipped with, add C 14 Alkyl alcohol ether R-O-(CH 2 CH 2 CH 2 CH 2 O) 18 H0.3mol, 0.3mol sodium hydride, 80ml toluene, stir and heat to 120°C, azeotropic reflux dehydration for 3.5 hours, until clarified in the water separator, the water layer is no longer changed, so that it can fully generate C 14 Sodium salt of alkanol ether. Secondly, the water separator is removed, and a distillation device is installed to evaporate the solvent in the reaction kettle. Then add 0.2mol sodium hydroxypropyl sulfonate, 0.1mol catalyst potassium hydroxide, 60ml dodecane, 18 20% product of alkanol ether mass, azeotropic reflux for 2 hours to obtain C 11 Sodium alkyl alcohol ether sulfonate, 62% yield.

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PUM

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Abstract

The invention provides a process for making alkyl alcohol ether sulfonate or alkyl phenol ether sulfonate, comprising the steps of: reacting alkyl alcohol ether or alkyl phenol ether with equal molar ratio with strong alkali or alkali metal to generate sodium salt or potassium salt of the alkyl alcohol ether or the alkyl phenol ether; adding hydroxyalkyl sulfonate and an alkaline catalyst to the sodium salt or the potassium salt of the alkyl alcohol ether or the alkyl phenol ether at a room temperature; adding solvent at the same time; reacting for 0.5 to 5 hours between 100 and 220 DEG C by means of azeotropy refluxing or evacuation, removing water which is generated by reaction, and obtaining alkyl alcohol ether sulfonate or alkyl phenol ether sulfonate. The invention has the advantages of convenient operation, simple process, easy control and low cost and so on.

Description

technical field [0001] The invention relates to a process for preparing alkyl alcohol ether sulfonate or alkylphenol ether sulfonate through sulfoalkylation reaction of alkyl alcohol ether or alkylphenol ether and hydroxyalkylsulfonate. Background technique [0002] Alkyl alcohol ether sulfonate or alkylphenol ether sulfonate is a new type of composite surfactant to adapt to the development of tertiary oil recovery technology. At present, the technical routes for preparing alkyl alcohol ether sulfonates or alkylphenol ether sulfonates in the world mainly include sulfite sulfonation and sulfoalkylation. Among them, the sulfite sulfonation method always involves a halogen-containing active group, which will produce some toxic, harmful and corrosive substances during its preparation, which will pollute the environment and corrode equipment. The sulfoalkylation method is under certain temperature, pressure and the presence of a catalyst, an alkyl alcohol ether or an alkylphenol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C303/02C07C303/32C07C309/62B01F17/06C09K23/06
Inventor 牛金平张永民李小秋韩亚明韩向丽谷惠先
Owner 中轻化工绍兴有限公司
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