Method for preparing diphenolic propane diglycidol ether

A technology of diglycidyl ether and diphenolic propane, which is applied in the field of preparation of diphenolic propane diglycidyl ether, can solve the problem of high market price, achieve anti-corrosion and good mechanical properties, low cost and good comprehensive performance Effect

Inactive Publication Date: 2007-03-28
蓝星安迪苏股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The diphenolic propane diglycidyl ether produced by this method ha

Method used

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  • Method for preparing diphenolic propane diglycidol ether

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Example Embodiment

[0020] Example 1

[0021] A preparation method of diphenol propane diglycidyl ether, comprising the following steps:

[0022] The first step is to mix diphenol-based propane, diphenol-based propane by-products and epichlorohydrin, and add 50-70% benzyltriethylammonium chloride aqueous solution as a catalyst, and etherify at 75~125℃ The reaction time is 0.5-10 hours, the reaction temperature of the rice flower can be selected as 80, 90, and the reaction time can be selected as 1 hour, 3 hours, 6 hours, 8 hours, 9 hours,

[0023] Among them, the mass of diphenol-based propane by-product is 1 to 4 times the mass of diphenol-based propane, for example, it can be selected as 1.2, 1.4, 2.0, 2.4, 2.8, 3.5, 3.9 times, and the quality of epichlorohydrin is diphenol-based 4-40 times that of propane, for example, 6 times, 8 times, 15 times, 20 times, 28 times, 32 times, 35 times, 38 times, and the mass of benzyl triethyl ammonium chloride is diphenol propane 0.01 to 0.1 times of, for example...

Example Embodiment

[0028] Example 2

[0029] raw material name

[0030] The time, temperature, and reaction process are as described in Example 1.

Example Embodiment

[0031] Example 3

[0032] The time, temperature, and reaction process are as described in Example 1.

[0033] raw material name

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Abstract

The invention discloses a diphenol propane diglycerol ether preparing method, comprising the steps of: mxing diphenol propane, diphenol propane by-products and epoxy chloropropane, and adding in benzyl triethyl ammonium chloride water solution as catalyst, making etherification reaction at 75-125 deg.C for 0.5-10 h, dropping in sodium hydroxide water solution and blending, and keeping; eliminating water and epoxy chloropropane and obtaining a mixture containing diphenol propane diglycerol ether; adding in toluene to extract to remove sodium chloride from the mixture. And it has better synthetic performance of product and low cost and recycles the wastes.

Description

technical field [0001] The present invention relates to a preparation method of diphenol-based propane diglycidyl ether, more specifically, the present invention is a method for preparing diphenol-based propane diglycidyl ether by utilizing by-products produced during the production of diphenol-based propane. Background technique [0002] The by-products of diphenol-based propane refer to the by-products of the production of diphenol-based propane, which are composed of diphenol-based propane isomers, aromatic unit phenols, aromatic dihydric phenols, and aromatic polyphenols. Usually, diphenol-based propane residues are collected and sold externally for the production of phenolic resins, which fails to fully reflect the economic and social benefits of diphenol-based propane residues. [0003] The production method of diphenol-based propane diglycidyl ether is generally: the ring-opening reaction of diphenol-based propane with an equivalent or slightly excess epichlorohydrin ...

Claims

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Application Information

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IPC IPC(8): C07C43/205C07C41/09
Inventor 王祖良金戈翁建平
Owner 蓝星安迪苏股份有限公司
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