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Mixed system containing aliphatic acid surfactants, and preparation method thereof

A surfactant and fatty acid technology, which is applied in the mixed system containing fatty acid surfactant and its preparation field, can solve the problems of increased energy consumption in transportation and transportation, inability to meet stability at the same time, high concentration of non-crystallization, etc., and achieve stability No crystallization, simple formula and preparation method, satisfying the effect of high concentration

Active Publication Date: 2019-07-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low concentration will not only increase water consumption, but also increase transportation and transportation energy consumption accordingly
In other words, the current fatty acid solubilization system cannot meet the requirements of stable non-crystallization and high concentration at the same time

Method used

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  • Mixed system containing aliphatic acid surfactants, and preparation method thereof
  • Mixed system containing aliphatic acid surfactants, and preparation method thereof
  • Mixed system containing aliphatic acid surfactants, and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0019] The method for preparing a mixed system containing a fatty acid type surfactant provided by the invention comprises mixing a long-chain fatty acid with 11-14 carbon atoms, N,N,N',N'-tetramethyldiamine and water until solid Dissolving, wherein, the molar ratio between the long-chain fatty acid and N,N,N',N'-tetramethyldiamine is 45-205:100, preferably 50-200:100.

[0020] In the present invention, by coordinating specific long-chain fatty acids and diamines, the use concentration of long-chain fatty acids can be increased, therefore, the weight ratio between the long-chain fatty acids and water can be as high as 30:100, preferably, the The weight ratio between long chain fatty acid and water is in the range of 0.1-30:100.

[0021] In the present invention, the long-chain fatty acid is a fatty acid with 11-14 carbon atoms, preferably a straight-chain fatty acid, including saturated straight-chain fatty acid and / or unsaturated straight-chain fatty acid, more preferably, th...

Embodiment 1-42

[0034] According to the dosage shown in Table 1, weigh the fatty acid and place it in a sample bottle, add diamine with a micropipette, and then add deionized water; after airtight, heat to a certain temperature (see Table 1 "Temperature" column) for constant temperature. time (see Table 1 "Constant Temperature Time" column) until all the solids are dissolved to obtain a mixed system sample.

[0035] This mixing method is indicated in Table 1 by the column "1, constant temperature" of the mixing method. In Table 1, "molar ratio" refers to the molar ratio between fatty acid and diamine, and "weight ratio" refers to the weight ratio between fatty acid and water.

Embodiment 43-50

[0037] According to the dosage shown in Table 1, weigh the fatty acid and place it in a sample bottle, add diamine with a micropipette, and then add deionized water; heat to a certain temperature (see Table 1 "Temperature" column) for a certain period of time ( See Table 1 "Constant Temperature Time" column for details), and cool to a room temperature of about 20°C for 10 minutes, and repeat heating and cooling several times (see Table 1 "Constant Temperature Time" column for the number of repeated heating and cooling times).

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Abstract

The invention belongs to the field of surfactant, and discloses a mixed system containing aliphatic acid surfactants. The mixed system contains C11-C14 long chain aliphatic acids, N ,N , N', N'-tetramethyl diamine, and water, wherein the molar ratio of the long chain aliphatic acids to N ,N , N', N'-tetramethyl diamine is controlled to be 45-205:100. On one hand, the invention discloses a preparation method of the mixed system containing aliphatic acid surfactants, and on the other hand, the invention also discloses the prepared mixed system. The preparation method comprises mixing of the C11-C14 long chain aliphatic acids, N ,N , N', N'-tetramethyl diamine, and water till solid dissolving. Even the concentration of the C11-C14 long chain aliphatic acids is high, the mixed system can be maintained to be stable, no crystallization is caused. The formula and the preparation method are simple, and are convenient for popularization and applications.

Description

technical field [0001] The invention relates to the field of surfactants, in particular to a mixed system containing fatty acid surfactants and a preparation method thereof. Background technique [0002] Fatty acids and sodium salts of fatty acids are a class of surfactants with a wide range of applications, involving all aspects of life and civil use, petroleum exploration and chemical industry. Fatty acid surfactants have a wide range of sources and low cost, and can be obtained in large quantities from animal and vegetable fats. And it is healthy and environmentally friendly. The soaps used in daily life and chemical production are fatty acid surfactants. [0003] Surfactants have a variety of aggregation forms in the stable formulation system, including true solution (required below the critical micelle concentration CMC), micelles, worm-like micelles and lamellar vesicles. Reflected in the properties of the formula are dilute solution, viscous solution and gel. By ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/00B01F17/16C09K23/00C09K23/16
CPCC09K23/017
Inventor 罗俊杰张建枚吴春红卜少华黄铃
Owner CHINA PETROLEUM & CHEM CORP