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Fluorocarbon surfactant as well as preparation method and application thereof

A technology of fluorocarbon surfactants and active agents, which is applied in the direction of sulfonate preparation, cyanide reaction preparation, chemical instruments and methods, etc., can solve the problems of high price and poor water solubility of fluorocarbon surfactants, and achieve easy industrial application, Good temperature resistance and the effect of reducing surface tension

Active Publication Date: 2018-03-06
克拉玛依市新聚工贸有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The usual fluorocarbon surfactants are expensive and have poor water solubility, and the surface tension of the aqueous solution can only be reduced to about 20mN / m at the addition of 0.01%.

Method used

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  • Fluorocarbon surfactant as well as preparation method and application thereof
  • Fluorocarbon surfactant as well as preparation method and application thereof
  • Fluorocarbon surfactant as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0017] The preparation method of a kind of fluorocarbon surfactant provided by the embodiment of the present invention, it comprises the following steps: After mixing caustic alkali, amino compound, 3-perfluorooctyl propylene oxide with the first solvent, after 60-90 Under the temperature condition of ℃, react for 10-30h, and the amino compound is taurine or amino acid.

[0018] It should be noted that, after mixing caustic alkali, taurine or amino acid, and 3-perfluorooctyl propylene oxide with the first solvent, epoxy group ring-opening polymerization occurs at a temperature of 65-75°C to obtain fluorocarbon Surfactant. Caustic alkali can be common caustic alkalis such as sodium hydroxide, potassium hydroxide, take sodium hydroxide as example, the preparation method of this fluorocarbon surfactant can be represented by following equation:

[0019]

[0020] In the formula, R is a polar group containing 2-16 carbon atoms.

[0021] Specifically, taurine in the present inve...

Embodiment 1

[0033] The present embodiment provides a kind of preparation method of fluorocarbon surfactant, it comprises the following steps:

[0034] In a three-necked flask equipped with a condenser tube and a magnetic stirrer, add 128.2g of water, 64.1g of methanol, 64.1g of isopropanol, 4g (0.1mol) of sodium hydroxide, stir well and add 12.5g (0.1mol) of taurine acid, the temperature was raised to 70°C, and 47.6g (0.1mol) of 3-perfluorooctyl propylene oxide was slowly added dropwise, and reacted for 16 hours to obtain a solution containing a fluorocarbon surfactant with an effective content of 20%.

[0035] This embodiment also provides a fluorocarbon surfactant, which is prepared by the above-mentioned method.

Embodiment 2

[0037] The present embodiment provides a kind of preparation method of fluorocarbon surfactant, it comprises the following steps:

[0038] In a three-necked flask equipped with a condenser and a magnetic stirrer, add 128.2g of water, 64.1g of methanol, 64.1g of isopropanol, 4.4g (0.11mol) of sodium hydroxide, stir well and then add 13.77g (0.11mol) of beef Sulfonic acid, heat up to 70°C, slowly add 47.6g (0.1mol) of 3-perfluorooctyl propylene oxide dropwise, and react for 24 hours to obtain a fluorocarbon surfactant solution with an effective content of 20%.

[0039] This embodiment also provides a fluorocarbon surfactant, which is prepared by the above-mentioned method.

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Abstract

The invention discloses a fluorocarbon surfactant as well as a preparation method and application thereof and relates to the technical field of material preparation. The preparation method of the fluorocarbon surfactant comprises the following steps: mixing caustic alkali, amino compounds, 3-perfluorooctyl epoxypropane and a first solvent, and reacting under the temperature condition of 60-90 DEGC for 10-30 hours. Preferably, the reaction temperature is 65-75 DEG C, and the reaction time is 16-24 hours. The preparation method is simple, feasible and convenient for industrialized application.The fluorocarbon surfactant prepared by using the method has the advantages of being high in surface activity, excellent in temperature resistance, excellent in solubility, small in usage amount, mildin synthesis conditions and the like, and the surface tension of an aqueous solution can be effectively reduced. Meanwhile, the fluorocarbon surfactant is capable of effectively reducing the surfaceand interfacial tension of acidizing and fracturing fluid and improving a flowback rate and can be applied to a process of preparing an oilfield acidizing and fracturing assistant.

Description

[0001] The invention relates to the technical field of material preparation, and in particular to a fluorocarbon surfactant, its preparation method and application. Background technique [0002] Acidizing and fracturing operations are important measures to increase production and injection of oil and gas wells. It is usually necessary to add agents that can reduce surface tension to the operating fluid to increase the flowback rate by reducing capillary resistance. Fluorocarbon surfactants have excellent ability to reduce surface tension, so they are widely used in this field. [0003] Common fluorocarbon surfactants are expensive and have poor water solubility, and the addition of 0.01% can only reduce the surface tension of the aqueous solution to about 20mN / m. Contents of the invention [0004] The purpose of the present invention is to provide a preparation method of a fluorocarbon surfactant, which is simple and easy to implement and convenient for industrial applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C227/18C07C229/12C07C229/24C07C303/32C07C309/14C09K8/74
CPCC07C227/18C07C229/12C07C229/24C07C303/32C07C309/14C09K8/602C09K8/604C09K8/74
Inventor 张维中王凤娟高鹏李永飞陆微微谢效梅寇瑶
Owner 克拉玛依市新聚工贸有限责任公司
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