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Grease-based diethanolamide polyoxyethylene ether, preparation method thereof and phosphate

A technology of polyoxyethylene ether phosphate and base diethanolamide, which is applied in the field of grease-based diethanolamide polyoxyethylene ether and its preparation, and phosphoric acid ester, and can solve the problem of fatty acid alkanolamide polyoxyethylene ether deep color and amine value To solve the problems of high free amine content and high equipment requirements, and achieve the effects of reducing free amine content and color value, improving surface activity, emulsifying power and dispersing performance

Pending Publication Date: 2021-12-28
JIAHUA CHEM TECH DEV SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the dark color of fatty acid alkanolamide polyoxyethylene ether in the prior art, the high amine value and free amine content, and the defects of high equipment requirements, thereby providing a grease-based distillate Ethanolamide polyoxyethylene ether and its preparation method and phosphoric acid ester

Method used

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  • Grease-based diethanolamide polyoxyethylene ether, preparation method thereof and phosphate
  • Grease-based diethanolamide polyoxyethylene ether, preparation method thereof and phosphate
  • Grease-based diethanolamide polyoxyethylene ether, preparation method thereof and phosphate

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Embodiment 1

[0043] The present embodiment provides a kind of preparation method of grease-based diethanolamide polyoxyethylene ether, comprising the following steps:

[0044] (1) Vacuumize the reaction kettle for nitrogen replacement, put 180g of palm kernel oil into the reaction kettle, slowly put in 32.82g of diethanolamine, raise the temperature to 140°C, react for 4h, cool down to 80°C, and put in potassium hydroxide. Diethanolamine solution (diethanolamine 49.23g, potassium hydroxide 2.62g), reacted for 4h, and discharged to obtain palm kernel oil diethanolamide.

[0045] (2) drop into 100g palm kernel oil diethanolamide in autoclave, vacuumize, pass into nitrogen, control reaction system pressure is 0.02MPa, add 0.5g sodium carbonate, and slowly pass into 72g ethylene oxide, be warming up to 100 °C, reacted for 4 hours, cooled to 70 °C, and discharged to obtain palm kernel oil diethanolamide polyoxyethylene ether.

[0046] This embodiment also provides a preparation method of fat-b...

Embodiment 2

[0049] The present embodiment provides a kind of preparation method of grease-based diethanolamide polyoxyethylene ether, comprising the following steps:

[0050] (1) Vacuumize the reaction kettle for nitrogen replacement, put 180g of palm kernel oil into the reaction kettle, slowly put in 41.03g of diethanolamine, raise the temperature to 140°C, react for 4h, cool down to 80°C, and put in potassium hydroxide. Diethanolamine solution (diethanolamine 41.03g, potassium hydroxide 2.6g), reacted for 4h, and ended the reaction to obtain palm kernel oil diethanolamide.

[0051](2) drop into 100g palm kernel oil diethanolamide in autoclave, vacuumize, pass into nitrogen, control reaction system pressure is 0.02MPa, add 0.5g sodium carbonate, and slowly pass into 72g ethylene oxide, be warming up to 100 °C, reacted for 4 hours, cooled to 70 °C, and discharged to obtain palm kernel oil diethanolamide polyoxyethylene ether.

[0052] This embodiment also provides a preparation method of...

Embodiment 3

[0055] The present embodiment provides a kind of preparation method of grease-based diethanolamide polyoxyethylene ether, comprising the following steps:

[0056] (1) Vacuumize the reaction kettle for nitrogen replacement, put 180g of palm kernel oil into the reaction kettle, slowly put in 32.82g of diethanolamine, raise the temperature to 140°C, react for 4h, cool down to 80°C, and put in potassium hydroxide. Diethanolamine solution (diethanolamine 49.23g, potassium hydroxide 2.62g), reacted for 4h, and ended the reaction to obtain palm kernel oil diethanolamide.

[0057] (2) drop into 100g palm kernel oil diethanolamide in autoclave, vacuumize, feed nitrogen, control reaction system pressure is 0.04MPa, add 0.5g sodium carbonate, and slowly feed 72g ethylene oxide, be warming up to 120 °C, reacted for 4 hours, cooled to 60 °C, and discharged to obtain palm kernel oil diethanolamide polyoxyethylene ether.

[0058] This embodiment also provides a preparation method of fat-bas...

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Abstract

The invention provides grease-based diethanolamide polyoxyethylene ether, a preparation method thereof and a phosphate, and the preparation method comprises the following steps: S1, taking natural grease and diethanol amine as raw materials, and carrying out an amide reaction to obtain grease-based diethanolamide; S2, subjecting the grease-based diethanolamide and ethylene oxide to a heating reaction under the action of a basic catalyst, obtaining the grease-based diethanolamide polyoxyethylene ether. It is found through research that the grease-based diethanolamide polyoxyethylene ether prepared through the method has the obviously-reduced amine value, the free amine content and the color value are also obviously reduced, the color is obviously lightened.

Description

technical field [0001] The invention relates to the technical field of surfactant synthesis, in particular to a grease-based diethanolamide polyoxyethylene ether, a preparation method thereof and phosphoric acid ester. Background technique [0002] Fatty acid alkanolamide polyoxyethylene ether is a new type of surfactant with good emulsifying and wetting properties. It can be used as lubricant, metal antirust agent, detergent in the fiber industry, and emulsifier in the pesticide industry. to use. [0003] Chinese patent document CN109232296A discloses a kind of oleic acid monoethanolamide polyoxyethylene ether and its synthesis method, synthesizes oleic acid monoethanolamide by reacting methyl oleate with monoethanolamine, then adds ethylene oxide and basic catalyst to react to obtain Oleic acid monoethanolamide polyether vinyl ether, this kind of oleic acid monoethanolamide polyether vinyl ether has a darker color, higher amine value and free amine content, which affects ...

Claims

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Application Information

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IPC IPC(8): C08G65/28C08G65/327
CPCC08G65/2633C08G65/327
Inventor 杜佳佳李玉博
Owner JIAHUA CHEM TECH DEV SHANGHAI CO LTD
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