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Saturated cardanol betaine surfactant, and preparation method and application thereof

A technology of surfactant and cardanol, applied in the field of saturated cardanol betaine surfactant and preparation, can solve problems such as not mentioned

Active Publication Date: 2016-10-05
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

[0004] Patents US2082275, US2087565, US2129264, US3328307, US3555079, GB1185111, US5081293, CN1566256A, CN102974268A, etc. disclose the preparation method of alkyl betaine and alkyl aryl betaine surfactants, but none of the above patents mentions the use of biomass saturated Cardanol as raw material, through Mannich reaction and quaternization reaction, the preparation method and application of saturated cardanol betaine surfactant

Method used

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  • Saturated cardanol betaine surfactant, and preparation method and application thereof
  • Saturated cardanol betaine surfactant, and preparation method and application thereof
  • Saturated cardanol betaine surfactant, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Preparation of saturated cardanol dimethyl ammonium carboxylate betaine surfactant:

[0054] The first step: in the 150mL three-necked bottle that electromagnetic stirring, thermometer, constant pressure dropping funnel are housed, add 50mL molar concentration and be the saturated cardanol dehydrated alcohol solution of 0.50mol / L and 3.38g dimethylamine, control temperature At 30°C, 6.08 g of formaldehyde solution with a mass concentration of 37% was added dropwise, stirring was continued for 2 hours after the dropwise addition, and then heated to reflux for 4 hours. After the reaction was completed, ethanol, water, unreacted formaldehyde and dimethylamine were distilled off under reduced pressure to obtain the crude product of saturated cardanol dimethylamine. Separation and purification with silica gel chromatography column, sequentially using petroleum ether and acetone as eluent to carry out gradient elution on the silica gel column to obtain saturated cardanol dime...

Embodiment 2

[0059] Preparation of saturated cardanol diethylammonium sulfobetaine surfactant:

[0060] Step 1: Add 60 mL of saturated cardanol isopropanol solution and 5.48 g of diethylamine with a molar concentration of 0.42 mol / L in a 150 mL three-necked flask equipped with electromagnetic stirring, a thermometer, and a constant pressure dropping funnel, and control the temperature At 40° C., 6.48 g of formaldehyde aqueous solution with a mass concentration of 37% was added dropwise, stirring was continued for 2 h after the dropwise addition, and then heated to reflux for 16 hours. After the reaction was completed, isopropanol, water, unreacted formaldehyde and diethylamine were distilled off under reduced pressure to obtain the crude product of saturated cardanol diethylamine. Separation and purification with silica gel chromatography column, followed by gradient elution with petroleum ether and acetone as eluent on the silica gel column to obtain saturated cardanol dibutylamine with a...

Embodiment 3

[0064] Preparation of Saturated Cardanol Dibutylammonium Carboxylate Betaine Surfactant

[0065] The technical scheme is basically the same as in Example 1, except that in the first step, dibutylamine is used to replace dimethylamine, and in the second step, saturated cardanol dibutylamine is used to participate in the reaction. Other conditions and operating methods are the same as in Example 1 to obtain The product is saturated cardanol dibutylammonium carboxylate betaine surfactant, and its IR spectrum is as follows Figure 7 shown.

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Abstract

The invention discloses a saturated cardanol betaine surfactant. The saturated cardanol betaine surfactant of a specific structure is prepared from saturated cardanol through a Mannich reaction and a quaterisation reaction. The saturated cardanol betaine surfactant has good interfacial performance; an aqueous solution of the saturated cardanol betaine surfactant and alkane or crude oil can form low or ultra-low interfacial tension; so the saturated cardanol betaine surfactant has good application prospects in a plurality of fields like mineral flotation, industrial washing and tertiary oil recovery. The saturated cardanol betaine surfactant has a structure as shown in a formula I which is described in the specification.

Description

technical field [0001] The invention relates to the field of surfactants, more specifically, to a saturated cardanol betaine surfactant and its preparation method and application. Background technique [0002] Betaine surfactant is a kind of amphoteric surfactant with excellent performance. It has good wetting and emulsifying properties, low toxicity, easy biodegradation, high temperature and high salt resistance, etc. It is widely used in shampoos, foam baths, Textile finishing agent, foam drilling agent, disinfectant, gel emulsifier and metal preservative. [0003] There are two main sources of raw materials for surfactant production: minerals and biomass. At present, in the global surfactant market, surfactant products based on minerals account for 75%. However, considering the availability of raw materials, the safety and compatibility of the environment and human body, and the sustainability of industry development, research and development use biomass resources as ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/28B01F17/18C07C229/14C07C227/08C07C309/14C07C303/32C09K8/584C09K23/28C09K23/18
Inventor 靳志强徐志成赵濉宫清涛张磊张路罗澜
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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