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Synthesis process of bisphenol A polyoxyethylene ether

A polyoxyethylene ether and synthesis process technology, applied in the field of bisphenol A polyoxyethylene ether, can solve the problems of large energy consumption and complicated process, and achieve the purpose of reducing energy consumption, improving efficiency, improving disintegration efficiency and mixing dissolution. The effect of efficiency

Pending Publication Date: 2022-07-01
SANJIANG LETIAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the traditional bisphenol A polyoxyethylene ether synthesis process, the initiator bisphenol A is usually heated first, and the melting temperature of bisphenol A is 158 ° C. The melted bisphenol A is then reacted with ethylene oxide and a catalyst. The process is compared. complex, high energy consumption

Method used

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  • Synthesis process of bisphenol A polyoxyethylene ether
  • Synthesis process of bisphenol A polyoxyethylene ether
  • Synthesis process of bisphenol A polyoxyethylene ether

Examples

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Embodiment 1

[0051] Embodiment 1 discloses a bisphenol A polyoxyethylene ether synthesis process, comprising the following steps:

[0052] S1: Preparation of bisphenol A preform. The raw materials of the bisphenol A preform include powdered bisphenol A raw materials with a mass ratio of 100:1 and a powdered catalyst, and the catalyst is a mixture of sodium carbonate and potassium hydroxide with a mass ratio of 1:10. The powdery bisphenol A raw material and the powdery catalyst are mixed uniformly in proportion, and then extruded with a die to obtain a cyclic bisphenol A preform with a diameter of 5 cm and a thickness of 1 cm.

[0053] The mold structure mainly includes an upper mold 1 and a lower mold 2. A plurality of hemispherical first cavities 11 are evenly opened on the mating surface of the lower mold 2. The hemispherical bump that the cavity 11 fits into. An annular groove 12 for pressing the bisphenol A preform is provided on the vertical mating surfaces of the upper mold 1 and t...

Embodiment 2

[0062] The difference from Example 1 is that the diameter of the cyclic bisphenol A preform is 2 cm.

Embodiment 3

[0064] The difference from Example 1 is that the diameter of the cyclic bisphenol A preform is 3 cm.

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Abstract

The invention relates to the field of bisphenol A polyoxyethylene ether synthesis, and particularly discloses a bisphenol A polyoxyethylene ether synthesis process which specifically comprises the following steps: S1, preparing a bisphenol A preform; s2, mixing the bisphenol A preform, a solvent and ethylene oxide for addition reaction, and filtering to obtain a head product; s3, curing the primary product, and removing the solvent to obtain a finished product bisphenol A polyoxyethylene ether; raw materials of the bisphenol A preform comprise a powdery bisphenol A raw material and a powdery catalyst. The preparation method comprises the step of pressing the raw materials into annular particles with the diameter of 2-5cm by using a mold. The method has the advantages that the energy consumption in the bisphenol A polyoxyethylene ether synthesis process is reduced, and the reaction efficiency is improved.

Description

technical field [0001] The present application relates to the field of bisphenol A polyoxyethylene ether, and more specifically, it relates to a synthesis process of bisphenol A polyoxyethylene ether. Background technique [0002] Bisphenol A polyoxyethylene ether is usually used as a toughening agent for cathodic electrophoretic paint, which can improve the flexibility, corrosion resistance and interlayer adhesion of cathodic electrophoretic paint, improve the mechanical strength of the paint, enhance the aging resistance, and has good resistance to Chemical corrosion and electrical performance characteristics. [0003] Bisphenol A polyoxyethylene ether is mainly based on bisphenol A as the starting agent. Under the action of different types of catalysts (acid catalyst, basic catalyst, alkaline earth catalyst, composite basic catalyst, etc.), it is directly added with ethylene oxide. produced by the reaction. [0004] In the traditional synthesis process of bisphenol A po...

Claims

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Application Information

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IPC IPC(8): C08G65/28
CPCC08G65/2612C08G65/2696
Inventor 蔡玉张进孙刚周天豪王艳东
Owner SANJIANG LETIAN CHEM
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