Method for synthesizing phenolic resin

A synthesis method and technology of phenolic resin, applied in chemical instruments and methods, chemical/physical/physical chemical process, chemical/physical process, etc., can solve the problems of complicated process, increased production cost, environmental pollution, etc.

Active Publication Date: 2015-02-04
XIAN ORIGIN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the one hand, this existing process will produce a large amount of phenol-containing wastewater, and on the other hand, the unreacted raw materials in the reactants need to be further processed
This synthesis method has complicated procedures and low yield of resin, which not only increases the production cost, but also causes serious environmental pollution.

Method used

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  • Method for synthesizing phenolic resin
  • Method for synthesizing phenolic resin
  • Method for synthesizing phenolic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] Embodiment 1: the synthesis of phenolic resin

[0114] The implementation steps of this embodiment are as follows:

[0115] A. Raw material mixing

[0116] Under a nitrogen atmosphere and a temperature of 10°C, let o-cresol and formaldehyde be mixed uniformly at a molar ratio of 1.0:1.2 to obtain a mixed solution:

[0117] B. Preparation of catalyst

[0118] A phosphoric acid catalyst aqueous solution with a concentration of 4% by weight was prepared under the condition of a temperature of 50°C.

[0119] C. Synthesis

[0120] The mixed solution obtained in step A is pumped into the preheater preheated by Bayer-Ehrfeld Microtechnology Company under the trade name Miprowa to reach 80 °C; the catalyst solution obtained in step B is pumped into the Bayer-Ehrfeld Preheating to 30°C in a modular preheater by Feld Microtechnologies under the trade name Miprowa;

[0121] Then, according to the mass ratio of the solute in the catalyst solution to the phenol compound of gene...

Embodiment 2

[0125] Embodiment 2: the synthesis of phenolic resin

[0126] The implementation steps of this embodiment are as follows:

[0127] A. Raw material mixing

[0128] Under the condition of nitrogen atmosphere and temperature 100°C, m-cresol and paraformaldehyde were mixed uniformly according to the molar ratio of 1.0:4.0 to obtain a mixed solution:

[0129] B. Preparation of catalyst

[0130] An aqueous oxalic acid catalyst solution with a concentration of 15% by weight was prepared under the condition of a temperature of 90°C.

[0131] C. Synthesis

[0132] The mixed solution obtained in step A is pumped into the modular preheater under the trade name Miprowa by Bayer-Ehrfeld Microtechnology Company to preheat to 150°C; the catalyst solution obtained in step B is pumped into the Preheating to 90°C in a modular preheater by Feld Microtechnologies under the trade name Miprowa;

[0133]Then, according to the mass ratio of the solute in the catalyst solution to the phenolic com...

Embodiment 3

[0137] Embodiment 3: the synthesis of phenolic resin

[0138] The implementation steps of this embodiment are as follows:

[0139] A. Raw material mixing

[0140] Under the conditions of nitrogen atmosphere and temperature 15°C, let p-ethylphenol and trioxane be mixed uniformly according to the molar ratio of 1.0:0.5 to obtain a mixed solution:

[0141] B. Preparation of catalyst

[0142] An aqueous acetic acid catalyst solution with a concentration of 1% by weight was prepared under the condition of a temperature of 10°C.

[0143] C. Synthesis

[0144] The mixed solution obtained in step A is pumped into the preheater of the Miprowa modular preheater produced by Bayer-Ehrfeld Microtechnology Company to preheat to 30°C; the catalyst solution obtained in step B is pumped into the Preheating to 50°C in a modular preheater by Feld Microtechnologies under the trade name Miprowa;

[0145] Then, according to the mass ratio of the solute in the catalyst solution and the phenol c...

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Abstract

The invention relates to a method for synthesizing phenolic resin. The method comprises the following steps: mixing raw materials, preparing a catalyst, synthesizing, extracting and distilling. By using a micro-channel reactor, the heat conduction process is intensified, the mass transfer problem is well solved, the material waste is greatly reduced, and the later treatment cost is also reduced. As a parallel 'quantity enlargement' mode is adopted during the industrial enlargement of the micro-channel reactor, direct enlargement from a laboratory to the industrial production process is achieved, and the practical production is relatively flexible. Modern high-efficiency chemical development and production windows are opened, and the modern chemical engineering develops towards environment protection, safety and high efficiency.

Description

【Technical field】 [0001] The invention belongs to the technical field of synthesis of organic polymer compounds. More particularly, the present invention relates to a kind of synthetic method of phenolic resin. 【Background technique】 [0002] Usually, the resin obtained by polycondensation of phenolic compound and aldehyde compound is called phenolic resin, and the phenolic resin obtained by polycondensation of phenol and formaldehyde is the most important. The phenolic resin raw material is easy to obtain, the cost is low, and the output is large; the cured product has good heat resistance and mechanical properties, and the performance is stable. Therefore, as one of the most important synthetic resins today, phenolic resins have gradually replaced engineering plastics and some metal and alloy materials in many fields such as automobiles, electronics, electricity, transportation, and military affairs, and have been widely used. [0003] Usually, the traditional process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/04C08G8/12C08G8/08B01J19/00
Inventor 辛昭赵杨锋张玮韩肖慧
Owner XIAN ORIGIN CHEM TECH
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