Process of producing alkyd resin using waste oil

A technology of alkyd resin and waste oil, applied in the field of fine chemicals, can solve the problems of high product cost, poor gloss, poor hardness and dryness, etc., and achieve stable and reliable product quality, eliminate table pollution, and reduce costs Effect

Inactive Publication Date: 2007-07-18
福建豪迪涂料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, alkyd resin is formed by polymerizing vegetable oil or vegetable oleic acid with polyols and polyacids. Due to the high price of raw materials, the cost of the product remains high.
http://www.asia-coating.cn/xwzx/ShowArticle.asp? Article ID=744 (update time: 2006-11-7) discloses a method to replace vegetable oils such as soybean oil, tung oil, and linseed oil with gutter oil and waste vegetable oil residues, and to replace solvents with waste water in the production process, and to produce PT

Method used

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  • Process of producing alkyd resin using waste oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] a. Using gutter oil to produce alkyd resin raw material formula: use pentaerythritol as polyhydric alcohol, phthalic anhydride as polybasic acid, xylene as reflux solvent, tall oleic acid as monobasic acid, 200 # The solvent is used as a diluting solvent, and the formulations of raw and auxiliary materials are as follows.

[0018] raw material

Feeding amount, Kg

Specification

Waste oil

1000-1200

/

tall oil acid

200-300

Industrial products

Auxiliary

1-5

Chemicals

Maleic anhydride

30-70

Industrial products

Phthalic anhydride

300-500

Industrial products

pentaerythritol

300-460

Industrial products

Xylene

150-200

Industrial products

200 # solvent

1500-2000

Industrial products

[0019] b. Production process

[0020] Put waste oil and tall oil acid into the pot, add additives when the temperatur...

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PUM

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Abstract

The process of producing semi-finished paint self-dried alkyd resin with sewage ditch oil includes heating sewage ditch oil and monoacid in the pot to 70-90 deg.c and adding assistant, dewatering before heating to 140-160 deg.c slowly, adding maleic anhydride, heating to 240-260 deg.c in 1.5-3.0 hr to acidolyze sewage ditch oil, cooling to 180-200 deg.c and adding polyol, polybasic acid and reflux solvent, heating to and maintaining at 180-200 deg.c, heating to and maintaining at 240-250 deg.c to dewater, heating to 270-290 deg.c to polymerize to reach required acid number and viscosity, cooling and adding solvent to dilute, filtering at 100 deg.c and packing. The present invention is environment friendly.

Description

1. Technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a production method of semi-finished alkyd resin for coatings. 2. Background technology [0002] In the prior art, the alkyd resin is formed by polymerizing vegetable oil or vegetable oleic acid with polyhydric alcohols and polyacids. Due to the high price of raw materials, the cost of the product remains high. http: / / www.asia-coating.cn / xwzx / ShowArticle.asp? Article ID=744 (update time: 2006-11-7) discloses a method to replace vegetable oils such as soybean oil, tung oil, and linseed oil with gutter oil and waste vegetable oil residues, and to replace solvents with waste water in the production process, and to produce PTA in chemical plants. Residues and waste glycerin instead of polyols to synthesize water-based alkyd resins; this method uses cheap waste oil and waste vegetable oil residues as raw materials, so that the production cost is significantly reduced, but b...

Claims

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Application Information

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IPC IPC(8): C08G63/49
Inventor 叶活耀
Owner 福建豪迪涂料科技股份有限公司
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