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Heat-resistant phenolic resin produced by taking cresol residues as raw material and application of heat-resistant phenolic resin in heat-resistant anti-corrosion paint

A technology of phenolic resin and raw materials, which is applied in the production of heat-resistant anti-corrosion paint. In the field of heat-resistant phenolic resin, it can solve the problems of toxic and harmful substance discharge, zero pollution discharge, and complicated treatment process, etc., and achieve good adhesion , strong implementability and simple production process

Inactive Publication Date: 2012-10-31
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 cresol residues to a certain extent, but they are not thorough. There are still a large amount of toxic and harmful substances discharged into nature, and zero pollution discharge cannot be achieved. At the same time, the traditional pollution treatment process is complex, large investment, and The cost is high, therefore, it is imminent to broaden the treatment channels of cresol residue

Method used

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  • Heat-resistant phenolic resin produced by taking cresol residues as raw material and application of heat-resistant phenolic resin in heat-resistant anti-corrosion paint
  • Heat-resistant phenolic resin produced by taking cresol residues as raw material and application of heat-resistant phenolic resin in heat-resistant anti-corrosion paint
  • Heat-resistant phenolic resin produced by taking cresol residues as raw material and application of heat-resistant phenolic resin in heat-resistant anti-corrosion paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Preparation of heat-resistant phenolic resin

[0048] (1) Accurately weigh 100 parts of cresol residue, 50 parts of furan resin, 100 parts of dicyclopentadiene, 50 parts of water, 0.2 part of zinc oxide, and 0.6 part of hexamethylenetetramine, add them to the reaction kettle, heat up, and when When the system reaches 90°C, add 50 parts of formaldehyde dropwise; after dropping, keep at this temperature for 3 hours to make it fully react; then add 60 parts of pentaerythritol and 40 parts of maleic anhydride, continue to heat up, at After keeping at ℃ for 2 hours, start to measure the acid value, oil solubility and solubility. When the acid value is ≤20mgKOH / g, resin: linseed oil = 1:4, fully soluble, resin: toluene = 1:1, fully soluble, it is qualified . Start to discharge, dry, and crush to obtain hard resin, which is set aside.

[0049](2) Put 300 parts of the above-mentioned hard resin, 100 parts of tung oil, 50 parts of pentaerythritol, 60 parts of phthalic anhyd...

Embodiment 2

[0062] 1. Preparation of heat-resistant phenolic resin

[0063] (1) Accurately weigh 100 parts of cresol residue, 50 parts of dimethylcyclopentadiene, 100 parts of terpene resin, 50 parts of water, 1 part of lead oxide, and 2 parts of ammonia water, add them to the reaction kettle, heat up, and when the system When it reaches 90°C, add 50 parts of formaldehyde dropwise; after dropping, keep it at this temperature for 5 hours to make it fully react; detect the oil solubility and solubility of the resin (resin: linseed oil = 1:4, fully soluble; resin: Toluene = 1:1, fully soluble), complete dissolution is qualified, discharge, dry, crush to obtain hard resin, set aside.

[0064] (2) Heat up 200 parts of the above-mentioned hard resin, 100 parts of linseed oil, 45 parts of pentaerythritol, 0.2 parts of lead oxide, and 0.1 part of lithium hydroxide to 240°C, and keep it for 2 hours to detect alcohol solubility. When the resin: ethanol (95% ) ≥ 1:5 is qualified, then lower the tem...

Embodiment 3

[0077] 1. Preparation of heat-resistant phenolic resin

[0078] (1) Accurately weigh 100 parts of cresol residue, 50 parts of rosin, 200 parts of coumarone resin, 50 parts of water, 1 part of zinc oxide, and 1 part of ammonia water, add them to the reaction kettle, and raise the temperature. When the system reaches 90 °C, Add 50 parts of formaldehyde dropwise; after dropping, keep it at this temperature for 5 hours to make it fully react; after passing the test (test oil solubility and solubility, resin: linseed oil = 1:4, fully soluble; resin: toluene = 1:1, fully soluble), discharge, dry, and crush to get hard resin, set aside;

[0079] (2) Heat 350 parts of the above-mentioned hard resin, 200 parts of linseed oil, 60 parts of pentaerythritol, 20 parts of trimethylolpropane, 0.1 part of lithium hydroxide, and heat up to 250 ° C. After keeping it for 1 hour, test the alcohol solubility. When the resin: ethanol (95%)≥1:5 is qualified, then lower the temperature to 200°C, add ...

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Abstract

The invention provides a heat-resistant phenolic resin produced by taking cresol residues as a main raw material. The heat-resistant phenolic resin is obtained after a series of chemical reaction through utilizing the active functional groups of various compounds in the cresol residues. A heat-resistant anti-corrosion paint is produced by taking the heat-resistant phenolic resin as a main film forming matter and compounding with glass flakes and other lamellar inorganic mineral materials, has the advantages of high drying speed, good adhesion, high hardness, good heat resistance, strong water resistance and solvent resistance and the like, and is suitable for the heat-resistant anticorrosion coating of the surfaces of chemical mechanical equipment, pipelines, flues, storage tanks, heat dissipation devices and other devices. According to the heat-resistant phenolic resin, the cresol residues are comprehensively utilized, therefore, the pollution problem of the cresol residues is fundamentally solved, and the effects of comprehensive treatment and waste material recycle are realized; and moreover, new paint products are increased, and the application field of the phenolic paint is broadened.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and relates to the treatment and comprehensive utilization of phenolic residues, in particular to a heat-resistant phenolic resin prepared from cresol residues as the main raw material; the invention also relates to the use of the resin in the production of heat-resistant anti-corrosion paints in the application. Background technique [0002] Cresol is a fine chemical product widely used in the fields of industry, agriculture, medicine and health. However, in the process of producing cresol, a large amount of residue will be produced, and the main components are mixed phenols (phenol, cresol, hydroquinone, cresyldiol, cresylglucinol, nonylphenol, etc.), mixed ethers (anisole , biscresyl ether, etc.), mixed ketones (xylenone, etc.), inorganic salts, ash, water, polyaromatic polymers, etc., about every 100 tons will produce 10-12 tons of residue, of which the residue contains about 30% p...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08L91/00C08K5/053C08K5/092C08G8/28C08J3/24C09D161/14C09D5/08
Inventor 吕维华伍家卫唐蓉萍索陇宁何小荣杨兴锴吕江平尚秀丽周艳青甘黎明周锦
Owner LANZHOU PETROCHEM COLLEGE OF VOCATIONAL TECH
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