Method for preparing phenolic resin from phenols residues and application thereof to production of coating

A phenolic resin and residue technology is applied in the application of phenolic resin in the production of coatings and the field of preparing phenolic resin, which can solve the problems of toxic and harmful substance discharge, increase in pollution treatment cost, inability to achieve zero pollution discharge, etc., and achieve good adhesion. , Solve the problem of phenol pollution, the effect of strong implementability

Inactive Publication Date: 2011-02-09
LANZHOU PETROCHEM COLLEGE OF VOCATIONAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods can only reduce the content of harmful substances in phenolic residues to a certain extent, but they are not thorough, and there are still a large amount of toxic and harmful substances

Method used

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  • Method for preparing phenolic resin from phenols residues and application thereof to production of coating
  • Method for preparing phenolic resin from phenols residues and application thereof to production of coating
  • Method for preparing phenolic resin from phenols residues and application thereof to production of coating

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Embodiment 1, the preparation of phenolic resin

[0038]Accurately weigh 100 parts of cresol residues, 200 parts of rosin, 20 parts of water, 0.5 parts of zinc oxide, and 1 part of ammonia water, add them to the reaction kettle, heat up, and when the system reaches 80 ° C, add 60 parts of formaldehyde dropwise; , and kept at this temperature for 5 hours to make it fully react; after detecting complete dissolution (detecting oil solubility and solubility, resin: linseed oil = 1: 4, fully dissolved; resin: toluene = 1: 1, fully dissolved), Add 20 parts of xylene, continue to heat up to 100°C, and dehydrate. After the removal, 100 parts of soybean oleic acid, 60 parts of glycerol, 40 parts of phthalic anhydride, 3 parts of zinc oxide, and 0.1 part of silicone oil were added to the reaction kettle in sequence, and the temperature was continued. , measure the viscosity and acid value, when the viscosity of the system is 5-10s (Grignard tube 25 ℃), the solid acid value is ≤ ...

Example Embodiment

[0041] Embodiment 2, the preparation of phenolic resin

[0042] Accurately weigh 100 parts of phenol residues, 80 parts of rosin, 70 parts of petroleum resin, 50 parts of water, 1 part of zinc acetate, and 1 part of ammonia water, add them to the reaction kettle, heat up, and when the system reaches 100 ° C, add 40 parts of formaldehyde dropwise; After dripping, keep it at this temperature for 5 hours to make it fully react; after detecting complete dissolution (detecting oil solubility and solubility, resin: linseed oil = 1: 4, fully dissolved; resin: toluene = 1: 1, fully dissolved; dissolve), add 30 parts of xylene, continue to heat up to 100°C, and dehydrate. After the removal, 100 parts of linseed oil and 50 parts of pentaerythritol were added to the reaction kettle in turn, and the temperature was raised to 240 ° C and kept for 2 hours, and then the alcohol solubility was detected. When the temperature reaches 200 °C, add 60 parts of phthalic anhydride, 3 parts of zinc ...

Example Embodiment

[0045] Embodiment 3, the preparation of phenolic resin

[0046] Accurately weigh 100 parts of tert-butylphenol residue, 80 parts of rosin, 100 parts of coumarone resin, 50 parts of water, 1 part of copper sulfate, and 1 part of ammonia water, add it to the reaction kettle, heat up, when the system reaches 90 ℃, drop Add 60 parts of formaldehyde; after dripping, keep it at this temperature for 5 hours to make it fully react; after testing qualified (detect oil solubility and solubility, resin: linseed oil=1:4, fully soluble; resin: toluene=1 : 1, fully dissolved), add 40 parts of xylene, continue to heat up to 100°C, and dehydrate. After the removal, 150 parts of soybean oil and 50 parts of pentaerythritol were sequentially added to the reaction kettle, and the temperature was raised to 240° C. After holding for 2 hours, the alcohol solubility was detected. 200 °C, add 50 parts of phthalic anhydride, 10 parts of benzoic acid, 5 parts of maleic anhydride, 3 parts of copper sulf...

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Abstract

The invention provides a method for preparing phenolic resin from phenols residues serving as raw materials and belongs to the technique field of the treatment and comprehensive utilization of phenols residues. In the method, based on the effective functional groups of various compounds in phenols residues, a series of chemical reactions are performed to convert the phenols residues into the phenolic resin which can be industrially and directly used for preparing corresponding coatings; and thus, the zero waste emission of phenols product production is realized, the problem of phenols pollution is solved radically, and the effect of comprehensively controlling and recycling waste is achieved. Meanwhile, the quality of the produced coating products is higher than that required by the conventional industrial standards, but the production cost is lower than those of conventional coating products. The method has the characteristics of simple production process, low equipment investment requirement, high practicability, low comprehensive cost, and obvious economic benefit.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and relates to a treatment and comprehensive utilization technology of phenolic residues, in particular to a phenol, cresol, xylenol, phenylphenol, bisphenol A, tert-butylphenol, nonylphenol 1. A method for preparing phenolic resin from hydroquinone residues; the present invention also relates to the application of phenolic resin in the production of coatings. Background technique [0002] There are many kinds of phenolic compounds, including phenol, cresol, xylenol, phenylphenol, tert-butylphenol, nonylphenol, diphenol, bisphenol A, aminophenol, nitrophenol, naphthol, chlorophenol , bromophenol, etc. These substances generally have strong toxicity, corrosiveness and bactericidal ability, and are widely used in medicine, hygiene, pesticides, spices, dyes, antioxidants, polymerization inhibitors, plasticizers, developers, preservatives, and ultraviolet absorbers. , surfactants, coating...

Claims

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Application Information

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IPC IPC(8): C08G8/24C09D163/00C09D7/12C08G8/28C09D167/08C09D161/14
Inventor 伍家卫吕维华杨兴锴索陇宁唐蓉萍何小荣尚秀丽甘黎明周艳青周锦孟石
Owner LANZHOU PETROCHEM COLLEGE OF VOCATIONAL TECH
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