Preparation method of cardanol triblock polyether

A cardanol and polyether technology is applied in the field of preparation of cardanol tri-polyether, which can solve the problems of high hazard and achieve the effects of low cost, wide adjustable range and excellent low-foaming properties.

Inactive Publication Date: 2019-03-01
TONGXIANG HENGLONG CHEM CO LTD
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  • Abstract
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Problems solved by technology

At the same time, nonylphenol can continuously accumulate in organisms through the food chain, which is extremely harmful

Method used

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  • Preparation method of cardanol triblock polyether

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[0019] A preparation method of cardanol tri-block polyether, comprising the following steps:

[0020] 1) Clean the reaction kettle with distilled water until it is clean, dry the reaction kettle, and check that the related valves and equipment of the reaction kettle are normal;

[0021] 2) Inhale 400-500 parts of cardanol and 1-5 parts of basic catalyst into the reaction kettle, slowly pull vacuum and heat up to 120°C, dehydrate for 1 hour, fill with nitrogen, and then vacuumize, and then raise the temperature to 140°C ℃;

[0022] 3) Press the measured ethylene oxide ethylene oxide feeder into the reaction kettle in a liquid state with nitrogen, so that the pressure in the kettle reaches 0.1-0.2MPa. After the reaction starts, the temperature rises and the pressure begins to drop, and continue to feed residual ethylene oxide;

[0023] 4) The temperature is 145-155°C, and the pressure is 0.2-0.3 MPa. When all the ethylene oxide is added, until the pressure no longer drops, acc...

Embodiment 1

[0027] raw material

Embodiment 2

[0029] raw material

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Abstract

The invention discloses a preparation method of cardanol triblock polyether, including: 1) washing a reaction kettle until clean with distilled water and drying the reaction kettle; 2) sucking 400-500parts of cardanol and 1-5 parts of an alkali catalyst into the reaction kettle; 3) pressing metered ethylene oxide, in liquid status, into the reaction kettle with nitrogen gas through an ethylene oxide feeder; 4) after the ethylene oxide is fed completely, pressing 200-680 parts of metered propylene epoxide, in liquid status, into the reaction kettle with nitrogen gas through a propylene epoxidefeeder, and performing a polymerization reaction; 5) after the reaction is completed, pressing 370-885 parts of metered ethylene oxide, in liquid status, into the reaction kettle with nitrogen gas through the ethylene oxide feeder, and performing a polymerization reaction; 6) degassing the product, reducing the temperature to about 70 DEG C, pressing the product into a homogenizing kettle, adding1.3-5.3 parts of glacial acetic acid for neutralization, and if qualified, delivering and packaging the product. The cardanol triblock polyether is biodegradable and environment-friendly, belongs tononionic surfactants, and has excellent cleaning capability and low-foaming property.

Description

technical field [0001] The invention relates to the field of surfactants, in particular to a preparation method of cardanol triembedded polyether. Background technique [0002] Surfactants are widely used and have penetrated into various civil and industrial fields. Among them, nonionic surfactants do not ionize in water, and are amphiphilic molecules with hydroxyl or ether bonds as hydrophilic groups. Due to the nonionic surface Active agents have the characteristics of non-ionization in water, and have important uses in many fields. Nonylphenol polyoxyethylene ether is a non-ionic surfactant with excellent performance. It has good penetration, emulsification, dispersion and other properties and is widely used in detergent, printing and dyeing, and chemical industries. Studies have shown that nonylphenol polyoxyethylene ether will be rapidly decomposed into nonylphenol when it is discharged into the environment. Nonylphenol is a recognized environmental hormone, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28B01F17/42C09K23/42
CPCC08G65/2612C09K23/00
Inventor 朱建成沈亚芬顾建坤张杰宋云飞庄斌
Owner TONGXIANG HENGLONG CHEM CO LTD
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