Alkyl diphenyl ether sulfonate and preparation method thereof

A technology of alkyl diphenyl ether sulfonate and alkyl diphenyl ether, which is used in the preparation of sulfonate, chemical instruments and methods, organic chemistry, etc. It can improve the stability and efficacy of use, excellent emulsifying performance, and low price.

Inactive Publication Date: 2013-08-28
杨锌荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of product synthesis, at present, when aromatic hydrocarbons are alkylated, the alkylation method mostly uses chlorinated hydrocarbons, olefins, and fatty alcohols as alkylation reagents, and the alkylation catalyst is prepared with aluminum trichloride and hydrochloric acid. But this method technology is loaded down with trivial details, and by-product is many, and catalyst treatment cost is big, and when aliphatic alcohol or olefin is done alkylation as alkylating agent, also useful sulfuric acid is made alkylation catalyst, but does catalyst demand with sulfuric acid big, to The equipment is seriously corroded, and it is easy to cause the early sulfonation of diphenyl ether during the alkylation process, which makes the alkylation difficult and the by-products increase accordingly, and the sulfuric acid separation process in the purification process after the alkylation is complicated and time-consuming Power consumption, large amount of sewage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Add about 300 grams of diphenyl ether to the reactor, add about 168 grams of a-olefin with a C number of 12, and add about 14 grams of sulfonated styrene-divinylbenzene copolymer, and gradually control the temperature at 80-180°C , Keep for 1-5 hours, to the end of the reaction, filter the sulfonated styrene-divinylbenzene copolymer, heat and reduce pressure distillation, take the 270-350 fraction, send the rectifying liquid to the sulfonation kettle, and then rectify Add 200 grams of petroleum ether to the solution and start adding 400 grams of 120 oleum to the solution. The temperature is controlled at 0-80℃, and the reaction is for 1-5 hours. Add water about 30% and stir for 0.5 hours. Static acid precipitation, separate after separation. Waste acid (it can be used with high-concentration fuming sulfuric acid during next sulfonation to reduce waste water discharge). After the waste acid is separated, the petroleum ether is distilled off, and then water is added and...

Embodiment 2

[0011] Add about 680 grams of diphenyl ether to the reaction kettle, add about 336 grams of a-olefin with a C number of 12, and add about 16 grams of sulfonated styrene-divinylbenzene copolymer, and gradually control the temperature at 80-180℃ , Keep for 1-5 hours, to the end of the reaction, filter the sulfonated styrene-divinylbenzene copolymer, heat and reduce pressure distillation, take the 270-350 fraction, send the rectifying liquid to the sulfonation kettle, and then rectify Add 100 grams of dichloromethane to the solution, and start to add 235 grams of chlorosulfonic acid dropwise. The temperature is controlled at 0-80°C and HCl gas is extracted at the same time. After the reaction is completed for 1 hour, the temperature is raised to 50°C and the end point is measured. , Extract dichloromethane under reduced pressure, add water and add liquid caustic soda and a small amount of lime to neutralize the pH value to 6.5-7.5, filter, and make up the filtrate to about 45% ...

Embodiment 3

[0013] Add about 300 grams of diphenyl ether to the reactor, add about 112 grams of a-olefin with a C number of 8, and add about 14 grams of sulfonated styrene-divinylbenzene copolymer, and gradually control the temperature at 80-180℃ , Keep for 1-5 hours, to the end of the reaction, filter the sulfonated styrene-divinylbenzene copolymer, heat and reduce pressure distillation, take the 270-350 fraction, send the rectifying liquid to the sulfonation kettle, and then rectify Add 200 grams of petroleum ether to the solution and start adding 400 grams of 120 oleum to the solution. The temperature is controlled at 0-80℃, and the reaction is for 1-5 hours. Add water about 30% and stir for 0.5 hours. Static acid precipitation, separate after separation. Waste acid (it can be used with high-concentration fuming sulfuric acid during next sulfonation to reduce waste water discharge). After the waste acid is separated, the petroleum ether is distilled off, and then water is added and liqui...

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PUM

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Abstract

The invention relates to a preparation method of a novel anionic surfactant alkyl diphenyl ether sulfonate. The preparation method specifically comprises the steps of: with diphenyl ether and alpha-olefin as main raw materials, in the presence of solid acid catalyst, preserving heat for 1-5 hours under the temperature condition of 80-180 DEG C to produce an intermediate product alkyl diphenyl ether, then adding an inert organic solvent and a sulfonating agent for sulfonating at 0-80 DEG C to produce alkyl diphenyl ether sulfonic acid, and adding an alkali neutralizing agent for neutralizing till the PH value is 6.5-7.5, so as to produce alkyl diphenyl ether sulfonate.

Description

technical field [0001] The invention belongs to the field of chemical manufacturing, and in particular relates to an alkyl diphenyl ether sulfonate and a preparation method thereof. Background technique [0002] Alkyl diphenyl ether sulfonates are mainly divided into alkyl diphenyl ether monosulfonates, alkyl diphenyl ether disulfonates, and dialkyl diphenyl ether disulfonates. At present, all domestic enterprises use this series of products Relying on imports, there is no practical solution to the synthesis of this product in China, and there is no domestic product on the market. Through more than one year of hard work, I have solved this problem and actually synthesized a finished product with superior effect. Compared with imported products, the surface tension is 29-31 dynes / cm when the concentration is 0.1%, which can completely replace imported products. The products are widely used in petroleum exploration, textile printing and dyeing, latex processing and other ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/42C07C303/32B01F17/42B01F17/12C09K23/12C09K23/42
Inventor 杨锌荣
Owner 杨锌荣
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