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Alkylamine ether derived surfactants and preparation method thereof

A technology of surfactant and alkyl amine ether, which is applied in the field of alkyl amine ether derived surfactant and its preparation, can solve problems such as poor compatibility of anionic surfactant, and achieves curbing side reactions, easy operation, Environmentally friendly effect

Active Publication Date: 2016-12-07
山东转化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Amino ether surfactants have excellent emulsification, dispersion, solubilization, antistatic, lubrication, corrosion inhibition, sterilization and other characteristics, but they are not compatible with anionic surfactants.

Method used

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  • Alkylamine ether derived surfactants and preparation method thereof
  • Alkylamine ether derived surfactants and preparation method thereof
  • Alkylamine ether derived surfactants and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0035] The preparation of didodecanyl secondary amine ether (5EO) carboxylic acid shown in formula V

[0036]

[0037]

[0038] A kind of preparation method of didodecanyl secondary amine ether (5EO) carboxylic acid, comprises the following steps: the first step: carboxylation reaction, earlier raw material 1.3mol didodecanyl secondary amine ether (5EO) and 1mol chlorine Sodium acetate was placed in the experimental device equipped with a stirrer, thermometer, water separator and condenser tube. The whole experimental device was inerted for 3 times, and finally nitrogen protection was introduced, the condenser was opened, and the temperature was raised to 40-90 °C, and 1.25 mol Sodium hydroxide is evenly divided into 5-10 parts, and added in batches and evenly within 8-20 hours of reaction time. If the acid value is less than 120, it is considered that the carboxylation reaction is over. The second step: acidification and separation, use 30% HCl solution to neutralize to...

preparation Embodiment 1-1

[0040] The preparation of didodecanyl secondary amine ether (5EO) carboxylic acid shown in formula V

[0041]

[0042] A kind of preparation method of didodecanyl secondary amine ether (5EO) carboxylic acid, comprises the following steps: the first step: carboxylation reaction, earlier raw material 1.2mol didodecanyl secondary amine ether (5EO) and 1mol chlorine Sodium acetate was placed in the experimental device equipped with a stirrer, thermometer, water separator and condenser tube. The whole experimental device was inerted for 3 times, and finally nitrogen protection was introduced, the condenser was opened, and the temperature was raised to 40-90 °C, and 1.25 mol Sodium hydroxide is evenly divided into 5-10 parts, and added in batches and evenly within 8-20 hours of reaction time. If the acid value is less than 120, it is considered that the carboxylation reaction is over. The second step: acidification and separation, use 30% HCl solution to neutralize to pH = 4±0.5,...

preparation Embodiment 1-2

[0044] The preparation of didodecanyl secondary amine ether (5EO) carboxylic acid shown in formula V

[0045]

[0046] A kind of preparation method of didodecanyl secondary amine ether (5EO) carboxylic acid, comprises the following steps: the first step: carboxylation reaction, earlier raw material 1.2mol didodecanyl secondary amine ether (5EO) and 1mol chlorine Sodium acetate was placed in an experimental device equipped with a stirrer, thermometer, water separator and condenser. The experimental device was inerted three times, and finally nitrogen protection was introduced, the condenser was opened, and the temperature was raised to 40-90°C. Sodium hydroxide is evenly divided into 5-10 parts, and added in batches and evenly within 8-20 hours of reaction time. If the acid value is less than 120, it is considered that the carboxylation reaction is over. The second step: acidification and separation, use 30% HCl solution to neutralize to pH = 4±0.5, raise the temperature to ...

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Abstract

The invention relates to alkylamine ether derived surfactants with chemical structures as shown in a formula I, a formula II and a formula III in the specification. In the formulas, R1 and R2 are respectively selected from the group consisting of C4-C22 straight-chain or branched-chain saturated alkyl or unsaturated alkyl; EO and PO are described in the specification; R1 and R2 are the same or different; and a and b are integers in a range of 0 to 100 and are not 0 at the same time. The invention also relates to a method for preparing the alkylamine ether derived surfactants. The method comprises the following steps: subjecting secondary amine ether and chloroacetate to a reaction under hydroxide of a metal so as to generate secondary amine ether carboxylate; and acidifying the secondary amine ether carboxylate with hydrochloric acid, and separating the obtained product so as to obtain amine ether carboxylic acid, or subjecting secondary amine ether and phosphorus pentoxide to phosphate esterification so as to obtain monoester and diester of secondary amine ether. According to different adduct number of an amine ether alkyl group, PO and EO, performances of the finally-obtained surfactants are adjusted from a molecular structure. The synthetic method provided by the invention is simple and convenient, facilitates to operation and has little harm to the environment. According to the invention, the secondary amine ether carboxylic acid is described as the formula I in the specification; the secondary amine ether phosphate diester is described as the formula II in the specification; and the secondary amine ether phosphate monoester is described as the formula III in the specification.

Description

technical field [0001] The invention relates to an alkylamine ether derived surfactant and a preparation method thereof. Background technique [0002] Since the 1950s, with the rapid development of the petrochemical industry, surfactants are a new type of chemicals that have emerged at the same time. It has a wide range of application fields, basically covering petroleum, food, agriculture, health, environment and other technical departments, and has a great auxiliary effect on improving technology, increasing production, and improving quality. [0003] Today, there are more than 10,000 kinds of surfactants in the world, and the output exceeds 15 million tons. According to the differences in their structures, various surfactants have large differences in their properties such as wetting, emulsifying, dispersing, solubilizing, bubble defoaming, and antistatic properties. In the actual use process, it is difficult for technicians in various industries to choose which surfact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C213/08C07C217/50C08G65/332B01F17/46C09K23/44C09K23/14C09K23/16C09K23/46
CPCC10M133/06C10M145/28C10M145/30C10M149/12C10M153/04C10M173/00C07C213/08C07C217/08C07F9/091C08G65/3322C08G65/337C10M2225/04C10M2217/06C10M2209/104C10M2209/105C10N2030/24C10N2040/22C09K23/14C09K23/00C09K23/16
Inventor 张楠王杨张城
Owner 山东转化科技有限公司
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