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Cationic surfactant with dense charges and preparation method and applications thereof

A surfactant and cationic technology, which is applied in the field of cationic surfactant and its preparation, can solve the problems of large dosage, low anti-swelling rate, and large formation damage, and achieve low critical micelle concentration and high surface/interface activity. Effect

Active Publication Date: 2018-09-18
KENTE CATALYSTS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing quaternary ammonium salt clay stabilizers have problems such as large dosage, low anti-swelling rate and great damage to the formation.

Method used

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  • Cationic surfactant with dense charges and preparation method and applications thereof
  • Cationic surfactant with dense charges and preparation method and applications thereof
  • Cationic surfactant with dense charges and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Be that 80% dodecyl primary amine ethanol solution (34.69g, wherein contain dodecyl primary amine 27.75g, 0.15mol) and acidic catalyst (85%H 3 PO 4 , 0.25g), warming up to 40 ° C, dropwise added a mass fraction of 70% trimethylolpropane-three (3- aziridinyl propionate) aqueous solution (35.42g, which contains trimethylolpropane-three (3-Aziridinyl propionate) 21.25 g, 0.05 mol), the dropping time is 40 min. After the dropwise addition, the temperature was raised to 50°C for 8 hours; 2 CO 3 Adjust to weakly alkaline (pH=9~10), add dropwise 3-chloro-2-hydroxypropyl-trimethylammonium chloride aqueous solution (70.50g, containing 3-chloro-2- Hydroxypropyl-trimethylammonium chloride 56.40g, 0.30mol), dropwise time is 60min, and react at 50°C for 8h; after the reaction, remove insoluble matter, concentrate the reaction solution, and purify and isolate the product by toluene column chromatography , vacuum dried to constant weight to obtain the product.

[0035] The struct...

Embodiment 2

[0040] Be that 80% octadecyl primary amine ethanol solution (50.53g, wherein contain octadecyl primary amine 40.43g, 0.15mol) and acidic catalyst (85%H 3 PO 4 , 0.25g), warming up to 50 ° C, dropwise added a mass fraction of 70% trimethylolpropane-three (3- aziridinyl propionate) aqueous solution (35.42g, which contains trimethylolpropane-three (3-Aziridinyl propionate) 21.25 g, 0.05 mol), the dropping time is 40 min. After the dropwise addition, the temperature was raised to 80°C for 6 hours; 2 CO 3 Adjust to weakly alkaline (pH=9~10), add dropwise 3-chloro-2-hydroxypropyl-trimethylammonium chloride aqueous solution (70.50g, containing 3-chloro-2- Hydroxypropyl-trimethylammonium chloride 56.40g, 0.30mol), dropwise time is 60min, react at 70°C for 4h; after the reaction, remove the insoluble matter, concentrate the reaction solution, and purify and isolate the product by toluene column chromatography , vacuum dried to constant weight to obtain the product.

[0041] The stru...

Embodiment 3

[0046] Be that 80% tetradecyl primary amine ethanol solution (40.03g, wherein containing tetradecyl primary amine 32.03g, 0.15mol) and acidic catalyst (85%H 3 PO 4 , 0.25g), warming up to 50 ° C, dropwise added a mass fraction of 70% trimethylolpropane-three (3- aziridinyl propionate) aqueous solution (35.42g, which contains trimethylolpropane-three (3-Aziridinyl propionate) 21.25 g, 0.05 mol), the dropping time is 40 min. After the dropwise addition, the temperature was raised to 70°C for 8 hours; 2 CO 3 Adjust to weakly alkaline (pH=9~10), add dropwise 3-chloro-2-hydroxypropyl-trimethylammonium chloride aqueous solution (70.50g, containing 3-chloro-2- Hydroxypropyl-trimethylammonium chloride 56.40g, 0.30mol), dropwise time is 60min, react at 70°C for 6h; after the reaction, remove insoluble matter, concentrate the reaction solution, and purify and isolate the product by toluene column chromatography , vacuum dried to constant weight to obtain the product.

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Abstract

The invention discloses a cationic surfactant with dense charges and a preparation method and applications thereof. The surfactant is prepared by the following steps: dropwise adding quantitative trihydroxymethyl propane-tri(3-aziridinyl propionate) reaction liquid into a reaction bottle, which is filled with an ethanol solution of long chain aliphatic primary amine and an acidic catalyst to carryout aziridine ring-opening reactions (first step); and then adding quantitative 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride into the reaction liquid to carry out quaternary amination reactions (second step). The reaction product is the cationic surfactant with dense charges.

Description

technical field [0001] The invention relates to the technical field of preparation of polyquaternary ammonium salt cationic surfactants, in particular to a cationic surfactant carrying dense charges, a preparation method and application thereof. Background technique [0002] Multi-quaternary ammonium cationic surfactants carry multiple hydrophilic groups and multiple hydrophobic groups, making them carry higher surface / interface activity, lower critical micelle concentration, better bactericidal performance, good Physicochemical properties such as foaming power, foam stability and unique rheology are widely used in the fields of preparing new materials, fungicides, inhibiting metal corrosion, fabric dyeing and finishing, and oil exploration. At present, cationic gemini surfactants are the most widely researched polyquaternary ammonium cationic surfactants, but there is no cationic surfactant with dense charges to meet the existing needs. [0003] There are clay minerals suc...

Claims

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Application Information

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IPC IPC(8): B01F17/18C07C227/18C07C229/16C09K8/68C09K8/74C09K23/18
CPCC09K8/602C09K8/68C09K8/74C07C227/18C09K2208/12C09K23/00
Inventor 王晨辛燕王霞杨通杨晓武费贵强
Owner KENTE CATALYSTS INC
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