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A kind of acyl-containing complexing surfactant and its synthesis method

A technique for surfactants and synthetic methods, which is applied in chemical instruments and methods, preparation of carboxylic acid amides, preparation of organic compounds, etc., can solve problems such as high safety requirements, and achieve simple synthesis methods, low irritation, and equipment requirements low effect

Active Publication Date: 2014-10-01
珠海君壹精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of acyl-containing complexing surfactant and its synthesis method
  • A kind of acyl-containing complexing surfactant and its synthesis method
  • A kind of acyl-containing complexing surfactant and its synthesis method

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 group-containing complexing surfactant, which has the following general structural formula: R is a C7-C17 long-chain alkyl group, and M is Na or K. The complexing surfactant of the present invention is similar to the structural features of EDTA complexing metal ions, and the three carboxyl groups and the lone pairs of electrons on the two connected Ns act at the same time to complex a multivalent metal ion. There is a long hydrophobic group in the surfactant structure, so it not only has surface activity, but also has complexing properties. The product of the present invention has excellent resistance to hard water and the ability to complex metal ions, and has relatively low irritation; the product can be compounded with other surfactants and has synergistic effect; it is a multifunctional surfactant that can It is widely used in washing, textile, papermaking, cosmetics and mining industries, and has potential application prospects.

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 Patents(China)
IPC IPC(8): C07C233/36B01F17/28C07C231/02C09K23/28
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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