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Anacardol polyoxyethylene ether and preparation method thereof

A technology of cardanol polyoxyethylene ether and cardanol, which is applied in the fields of ether preparation, alkylene oxide preparation ether, organic chemistry, etc.

Inactive Publication Date: 2013-12-18
ZHEJIANG HUANGMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydrogenation reaction and pressure distillation are required, the reaction steps are cumbersome, and organic solvents are used in the hydrogenation process, which is easy to cause pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A cardanol polyoxyethylene ether of this embodiment is characterized in that cardanol is used as a raw material, and after a polymerization reaction with ethylene oxide under the action of a catalyst, cardanol polyoxyethylene ether is obtained.

[0035] The preparation method includes the following steps: 1) put 700 parts of cardanol into the reaction kettle, control the temperature at 20-30°C, add 3.0 parts of catalyst sodium metal within 30 minutes, and react for another 30 minutes after the catalyst is added. 2) After the reaction in step 1) is over, use nitrogen to replace the air in the reaction kettle of step 1), then raise the temperature to 95°C, feed 308 parts of ethylene oxide, control the reaction temperature to 95-100°C, and the reaction pressure It is 0.2MPa, and the reaction time is 5h. 3) The material obtained after the reaction in step 2) was lowered to 70°C, neutralized by adding acetic acid, and then filtered with diatomaceous earth to obtain cardanol ...

Embodiment 2

[0043] A cardanol polyoxyethylene ether of this embodiment is characterized in that cardanol is used as a raw material, and after a polymerization reaction with ethylene oxide under the action of a catalyst, cardanol polyoxyethylene ether is obtained.

[0044]The preparation method includes the following steps: 1) Put 450 parts of cardanol into the reaction kettle, control the temperature at 20-30°C, add 2.1 parts of catalyst metal potassium within 30 minutes, and react for another 30 minutes after the catalyst is added. 2) After the reaction in step 1) is over, use nitrogen to replace the air in the reaction kettle of step 1), raise the temperature to 100°C, feed 590 parts of ethylene oxide, control the reaction temperature to 100-105°C, and the reaction pressure It is 0.25MPa, and the reaction time is 8h. 3) The material obtained after the reaction in step 2) was lowered to 70°C, neutralized by adding acetic acid, and then filtered with diatomaceous earth to obtain cardanol ...

Embodiment 3

[0052] A cardanol polyoxyethylene ether of this embodiment is characterized in that cardanol is used as a raw material, and after a polymerization reaction with ethylene oxide under the action of a catalyst, cardanol polyoxyethylene ether is obtained.

[0053] The preparation method includes the following steps: 1) Put 330 parts of cardanol into the reaction kettle, control the temperature at 20-30°C, add 4.0 parts of catalyst metal potassium within 30 minutes, and react for another 30 minutes after the catalyst is added. 2) After the reaction in step 1) is over, use nitrogen to replace the air in the reactor in step 1), then raise the temperature to 90°C, feed 673 parts of ethylene oxide, and control the reaction temperature to 90-95°C; the reaction pressure It is 0.35MPa, and the reaction time is 10h. 3) The material obtained after the reaction in step 2) was lowered to 70°C, neutralized by adding acetic acid, and then filtered with diatomaceous earth to obtain cardanol poly...

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Abstract

The invention discloses anacardol polyoxyethylene ether and a preparation method of the anacardol polyoxyethylene ether. A prepared anacardol polyoxyethylene ether product is made to have the advantage of being high in double-bond protection rate, and therefore good using performance is achieved. The preparation method comprises the following steps that 1) anacardol is put in a reaction still, and a catalyzer is controlled to be added to react within certain time and reaction temperature; 2) after the reaction of the step 1) is finished, nitrogen is adopted to displace air in the reaction still in the step 1), reaction temperature and pressure is controlled, and ethylene oxide is guided to react; 3) after materials obtained after the reaction of the step 2) is finished are cooled to be certain temperature, acetic acid is added to the materials to neutralize the materials, kieselguhr is added, filtration is carried out, and the anacardol polyoxyethylene ether is prepared.

Description

technical field [0001] The invention relates to a cardanol polyoxyethylene ether and a preparation method thereof, belonging to the technical field of synthesis of polyether compounds in organic chemistry. Background technique [0002] Cardanol is extracted from natural cashew nut shell oil by advanced technology. It contains a large amount of active single-component phenol and a small amount of diphenol. It can replace or partially replace phenol for the manufacture of epoxy curing agents, liquid phenolic resins, Thermosetting phenolic resin in liquid or powder form, which is widely used and has outstanding environmental performance. Cardanol has the activity of petroleum phenol. It is a monohydric phenol with a long hydrogen-containing carbon chain at the meta-position. It has the characteristics of wide sources, renewability, low toxicity and biodegradability. Alkylphenol polyoxyethylene ether synthesized from petroleum phenol is not easy to decompose in the natural envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C43/23C07C41/03C08G65/28
Inventor 万庆梅金一丰王胜利李世敏刘志湘
Owner ZHEJIANG HUANGMA TECH
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