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Alkyl-blocked alkylphenol polyoxyethylene ether benzene sulfonate surfactant and preparation method and application thereof

A technology of terminal alkylphenol polyoxyethylene ether and surfactant, which is applied in the field of alkyl-capped alkylphenol polyoxyethylene ether benzenesulfonate surfactant and its preparation, and can solve the problem of polyoxyethylene benzenesulfonic acid There are few problems such as salt research, and the effect of excellent surface/interface performance, high surface activity and high yield is achieved

Active Publication Date: 2010-03-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scientific researchers have done a lot of research on polyoxyethylene alcohol ether carboxylate and sulfate, and obtained anionic nonionic surfactants with better performance, but less research on polyoxyethylene benzene sulfonate, especially sulfonate Anionic nonionic surfactants whose acid group is located on the benzene ring and polyoxyethylene chain (EO) is located between the benzene ring and the alkyl chain have not been reported yet.

Method used

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  • Alkyl-blocked alkylphenol polyoxyethylene ether benzene sulfonate surfactant and preparation method and application thereof
  • Alkyl-blocked alkylphenol polyoxyethylene ether benzene sulfonate surfactant and preparation method and application thereof
  • Alkyl-blocked alkylphenol polyoxyethylene ether benzene sulfonate surfactant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1 Preparation of octyl-terminated octylphenol polyoxyethylene (4) ether sodium benzenesulfonate

[0060] (1) Add 15.35 g (0.05 mol) of octyl polyoxyethylene (4) alcohol and 1 mL of dimethylformamide to a 100 mL flask equipped with electromagnetic stirring, thermometer, reflux condenser, drying tube, and constant pressure dropping funnel At room temperature, slowly add 7.14g (0.06mol) of thionyl chloride through a constant pressure dropping funnel, continue to react for 0.5 hours after the dropwise addition, then raise the temperature to 120°C for 2 hours, pour into saturated sodium carbonate after cooling 300mL petroleum ether for three extractions, washed the organic phase three times with water, then dried the extracted petroleum ether phase with anhydrous sodium sulfate, rotary evaporated to remove the petroleum ether, and then distilled under reduced pressure to collect 184~186℃ / 532Pa 12.98 g of octyl polyoxyethylene (3) ethyl chloride was obtained from the ...

Embodiment 2

[0064] Example 2 Preparation of sodium dodecane-terminated octylphenol polyoxyethylene (6) ether benzenesulfonate

[0065] Add 4.70 g (0.01 mol) of octylphenol polyoxyethylene (6) ether (OP-6) and 1 mL of pyridine into a 100 mL flask equipped with electromagnetic stirring, a thermometer, a reflux condenser, a drying tube, and a constant pressure dropping funnel. Slowly add 1.79g (0.015mol) of thionyl chloride through a constant pressure dropping funnel at room temperature, continue to react for 0.5 hours after the dropwise addition, then raise the temperature to 100°C for 2 hours, pour into saturated sodium bicarbonate after cooling In the ice water solution of 300mL ethyl acetate, extract three times, wash the ethyl acetate phase three times, then dry the extracted ethyl acetate phase with anhydrous magnesium sulfate, and then rotary evaporate to remove the ethyl acetate to obtain octyl polyoxyethylene (5) 4.25 g of ethyl chloride, the yield is 87.0%. Then add 1.86g (0.01mol...

Embodiment 3 10

[0068] Embodiment 3 Preparation of dodecane-terminated octylphenol polyoxyethylene (15) ether sodium benzenesulfonate

[0069] Add 8.66g (0.01mol) of octylphenol polyoxyethylene (15) ether (OP-15) and sodium hydroxide to a 100mL flask equipped with electromagnetic stirring, thermometer, reflux condenser, drying tube, and constant pressure dropping funnel 0.60g (0.015mol), react at 100°C for 1 hour, then gradually add 2.49g (0.01mol) of brominated n-dodecane dropwise, heat to reflux for 2-5 hours after the dropwise addition, add 100mL of petroleum Extract with ether and 60mL water, extract the aqueous phase with petroleum ether until the petroleum ether layer is colorless, combine the organic phases, wash the organic phases with water three times, dry the organic phases with anhydrous magnesium sulfate, and evaporate the solvent to obtain dodecyl-capped octylphenol Polyoxyethylene (15) ether 7.94g, its yield 76.8%.

[0070] Add 20 mL of dried and refined 1,2-dichloroethane and...

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Abstract

The invention belongs to the field of efficient surfactant, in particular relates to an alkyl-blocked alkylphenol polyoxyethylene ether benzene sulfonate surfactant and preparation method and application thereof. The surfactant contains nonionic hydrophilic group polyoxyethylene and negative ion hydrophilic group sulfonate, the special molecular structure determines that the surfactant has good water-solubility, lower critical micelle concentration, excellent capability of reducing surface tension / interfacial tension, efficient foaming and foam stabilizing capability and outstanding temperature endurance and salt endurance, has good application prospect in a plurality of fields of pesticides, mineral flotation, tertiary oil recovery, and the like, and can be used as an effective oil displacement agent in tertiary oil recovery. The surfactant has the structure.

Description

technical field [0001] The invention belongs to the field of high-efficiency surfactants, and in particular relates to an alkyl-terminated alkylphenol polyoxyethylene ether benzenesulfonate surfactant and a preparation method and application thereof. Background technique [0002] Sulfonate is the most widely used anionic surfactant in heavy oil emulsification and three recovery oil flooding formulations. Among them, alkylbenzene sulfonate surfactant is one of the main products of surfactant industrialization for tertiary oil recovery, and it is also one of the most used surfactants for tertiary oil recovery. The raw materials of this kind of surfactant are all taken from crude oil. Although the source is wide and the quantity is large, the stability of the product is relatively poor, which brings difficulties to production and scientific research. As disclosed in the patent of Patent No. CN1128006C, the petroleum sulfonates synthesized from vacuum distillate oil with a mole...

Claims

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Application Information

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IPC IPC(8): B01F17/12C09K23/12
Inventor 赵濉周朝辉徐志成刘学鹏俞稼镛
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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