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Surface activator from citrate three-long chain alkyl triple quaternary ammonium salt cation and preparation thereof

A quaternary ammonium salt cation and surfactant technology, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problem of high cost of surfactants, achieve improved solubility, low raw material cost, and easy biodegradation Effect

Inactive Publication Date: 2007-08-15
李新宝 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are currently many hydrophobic groups and many hydrophilic groups introduced into the surfactant molecule to improve the surface properties and physical and chemical properties of the surfactant. However, the introduction of multiple hydrophobic groups and many hydrophilic groups into the surfactant molecule In the method for improving the surface properties of surfactants, cationic surfactants are not yet involved, and the cost of existing surfactants is relatively high

Method used

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  • Surface activator from citrate three-long chain alkyl triple quaternary ammonium salt cation and preparation thereof
  • Surface activator from citrate three-long chain alkyl triple quaternary ammonium salt cation and preparation thereof
  • Surface activator from citrate three-long chain alkyl triple quaternary ammonium salt cation and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 38.4 gram of citric acid (0.2 mol), 55.5 gram of epichlorohydrin (0.6 mol) and 103.6 gram of octane dimethyl tertiary amine (0.660 mol, excess 10%) are placed simultaneously and equipped with mechanical stirrer, thermometer and condenser in a four-necked flask. Then, 49.4 g of 2-propanol solvent (25% of the total amount of reactants) was added to the reactor and reacted at a temperature of 80° C. for 15 hours. After the reaction, the yield of the product was calculated to be over 95% from the remaining amine content and acid content, which were measured by the Chinese standard analytical method. When this product was dissolved in acetone and cooled, a paste formed. Then separate the two phases, recover and recycle the liquid, remove the solvent from the product, put it in a desiccator to dry to constant weight, and weigh to obtain the final product. Repeat the procedure of dissolving in acetone, cooling, and decanting more than two times. Then, the resulting product ...

Embodiment 2

[0035] 38.4 grams of citric acid (0.2 mole), 55.5 grams of epichlorohydrin (0.6 mole) and 140.6 grams of dodecyldimethyl tertiary amine (0.660 mole, excess 10%) were placed in a mechanical stirrer , a thermometer and a condenser in a four-necked flask. Then, 60 g of ethanol solvent (25% of the total amount of reactants) was added to the reactor and reacted at a temperature of 85° C. for 20 hours. After the reaction, the yield of the product was calculated to be over 95% from the remaining amine content and acid content, which were measured by the Chinese standard analytical method. When this product was dissolved in acetone and cooled, a paste formed. Then separate the two phases, recover and recycle the liquid, remove the solvent from the product, put it in a desiccator to dry to constant weight, and weigh to obtain the final product. Repeat the procedure of dissolving in acetone, cooling, and decanting more than two times. Then, the resulting product is dried to obtain a ...

Embodiment 3

[0037]42 grams of citric acid (0.2 moles) containing water of crystallization, 82.2 grams of epoxybromohydrin (0.6 moles) and 140.6 grams of dodecyldimethyl tertiary amine (0.660 moles, excess 10%) were placed in the container simultaneously. In a four-necked flask with mechanical stirrer, thermometer and condenser. Then, 59.5 g of 1-propanol solvent (25% of the total amount of reactants) was added to the reactor and reacted at a temperature of 90° C. for 12 hours. After the reaction, the yield of the product was calculated to be over 95% from the remaining amine content and acid content, which were measured by the Chinese standard analytical method. When this product was dissolved in acetone and cooled, a paste formed. The obtained product is processed in the same manner as in Example 1, and the obtained product is dried to obtain a paste-like pure cationic surfactant. And measure the CMC value of product with the same method of embodiment 1, nitrogen content, purity, evalu...

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Abstract

A cationic surfactant containing citrate, three hydrophobic alkyl chains, three cations of quaternary ammonium salt and hydrophilic hydroxy is prepared from citric acid, high-class fatty alamine and epoxy haloparaffin. Its advantages are low cost, biodegradable ability, low poison high water solubility, etc.

Description

technical field [0001] The present invention relates to a cationic surfactant, more specifically to a citrate tri-long-chain alkyl triquaternary ammonium salt cationic surfactant. Simultaneously, the present invention also relates to a preparation method of the citrate tri-long-chain alkyl triquaternary ammonium salt cationic surfactant. Background technique [0002] Surfactants (or interfacial active agents) are substances that can significantly reduce the surface tension of a liquid or the interfacial tension between two phases. Substances with surface activity are called amphiphilic molecules, that is, the molecule contains two components of hydrophilic and lipophilic, and the lipophilic part is usually C 7 -C 21 The alkyl chain is long, and the hydrophilic part is usually a water-soluble group. Generally speaking, the hydrophilic group makes the molecule introduce water, and the lipophilic group makes the molecule leave water and introduce oil. These two groups are re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/18C09K23/18
Inventor 李新宝刘国际
Owner 李新宝