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Acyl-containing complexing surface active agent and synthesis method thereof

A technique for surfactants and synthesis methods, applied in chemical instruments and methods, preparation of carboxylic acid amides, preparation of organic compounds, etc., can solve problems such as high safety requirements, achieve simple synthesis methods, short synthesis process steps, and excellent Hard water resistance and the effect of

Active Publication Date: 2012-10-03
珠海君壹精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, HCN is used in the synthesis process, which requires high safety during production and use.

Method used

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  • Acyl-containing complexing surface active agent and synthesis method thereof
  • Acyl-containing complexing surface active agent and synthesis method thereof
  • Acyl-containing complexing surface active agent and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 38.15g of diethylenetriamine and 1.285g of sodium methoxide into a four-necked round-bottomed flask, raise the temperature to 120°C while stirring, add 20.0g of methyl laurate dropwise, start vacuuming, maintain the temperature at 120°C, and the vacuum degree at 0.06MPa , after stirring and reacting for 5 hours, wash with water until pH=7~8 of the lotion, and dry the intermediate.

[0025] Add 10.0g of isopropanol to the above-mentioned four-necked round-bottomed flask, then add 10.05g of N-acyldiethylenetriamine, stir and raise the temperature to 80°C, and add dropwise a solution of 12.24g of sodium chloroacetate dissolved in 20.0g of water, the reaction process Maintain the pH of the solution at 8.5, and obtain a pale yellow product.

Embodiment 2

[0027] Add 48.13g of diethylenetriamine and 1.285g of sodium methoxide into a four-necked round-bottomed flask, raise the temperature to 120°C while stirring, add 20.00g of methyl laurate dropwise, start vacuuming, maintain the temperature at 120°C, and the vacuum degree at 0.06MPa , After stirring and reacting for 5 hours, the excess diethylenetriamine was distilled off with a decompression device to obtain the intermediate N-acyl diethylenetriamine.

[0028] Add 10.0 g of isopropanol to the above-mentioned four-necked round-bottomed flask, then add 10.05 g of N-acyl diethylenetriamine, stir and raise the temperature to 75 ° C, and dropwise add a solution of 12.27 g of sodium chloroacetate dissolved in 20.0 g of water, the reaction process Maintain the pH of the solution at 8.5, and react for 8 hours to obtain a light yellow product.

Embodiment 3

[0030] Add 77.76g of diethylenetriamine and 1.35g of sodium methoxide into a four-necked round-bottomed flask, raise the temperature to 120°C while stirring, add 20.00g of methyl laurate dropwise, start vacuuming, maintain the temperature at 122°C, and the vacuum degree at 0.05MPa , After stirring and reacting for 5 hours, the excess diethylenetriamine was distilled off with a vacuum distillation device to obtain an intermediate.

[0031] Add 10.0g of isopropanol to the above-mentioned four-necked round-bottomed flask, then add 10.01g of N-acyldiethylenetriamine, stir and raise the temperature to 75°C, add dropwise a solution of 12.24g of sodium chloroacetate dissolved in 20.0g of water, the reaction process Maintain the pH of the solution at 8.5, and react for 8 hours to obtain a light yellow product.

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Abstract

The invention discloses an acyl-containing complexing surface active agent which has the following structure general formula as shown in the specification, wherein R is C7-C17 long-chain alkyl, and M is Na or K. The structural feature of the complexing surface active agent disclosed by the invention is similar to that of EDTA (ethylene diamine tetraacetic acid) complexing metal ion, and three carboxyl groups and lone pair electrons on two connected N simultaneously act and are complexed with a multivalent metal ion. The structure of the surface active agent internally has a long hydrophobic group, so that the surface active agent structurally not only has surface activity, but also has complexation. The acyl-containing complexing surface active agent is good in hard water resistance and has metal ion complexing capability, and is low in irritation; the surface active agent can be compounded with the other surface active agents, and has the effect of synergy at the same time; and the acyl-containing complexing surface active agent is a multifunctional surface active agent and can be widely used for industries such as washing, spinning, papermaking, cosmetics and mining, and has potential application prospect.

Description

technical field [0001] The invention relates to an acyl group-containing complexing surfactant and a synthesis method. Background technique [0002] In recent years, improving the hard water resistance of surfactants, especially anionic surfactants, has been a subject of general concern in the industry. As early as the 1940s, people began to use various surfactant additives to improve their resistance to hard water. The first sodium tripolyphosphate (STPP) used was a complex Ca 2+ , Mg 2+ It has the functions of emulsifying dirt and preventing redeposition of dirt, and is cheap and has high cost performance; however, its extensive use can lead to "eutrophication" to varying degrees in partially enclosed and semi-enclosed waters, bringing The larger ecological hazards have affected its use. In the 1970s, many countries and regions successively enacted phosphorus restriction and prohibition laws, and the "golden combination" of sodium dodecylbenzenesulfonate and STPP was a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/28C07C233/36C07C231/02C09K23/28
Inventor 王军杨许召张娜娜邹文苑田晓俊
Owner 珠海君壹精细化工有限公司
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