Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of method for preparing alkyd resin based on tmp rectification heavy raffinate as raw material

An alkyd resin, heavy-duty technology, applied in the field of fine chemicals, can solve problems such as unfavorable environmental protection and resource reuse, improvement, and unfavorable economic benefits, and achieve the effects of bright color, simple process and strong color retention.

Active Publication Date: 2018-08-31
江西高信前沿科技有限公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the direct incineration method was mainly used to treat TMP heavy residual liquid, which is not only not conducive to environmental protection and resource reuse, but also not conducive to the improvement of economic benefits.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of method for preparing alkyd resin based on tmp rectification heavy raffinate as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The raw material TMP rectification heavy raffinate and phthalic anhydride are in accordance with the mass ratio of 2.75~2.85:1, the solid acid p-TSA with a mass fraction of 0.17%, the triphenyl phosphite with a mass fraction of 0.01%, and the triphenyl phosphite with a mass fraction of 3%. Xylene is added to the reactor equipped with agitator, thermometer, water separator (filled with xylene) and condenser, and the temperature is raised slowly. After the raw materials are melted, the stirring is started, and the constant temperature reaction is carried out after the temperature rises to 220°C. Take a sample for one hour to measure the acid value of the reaction system. Stop heating immediately when the acid value is less than 5mgKOH / g. After the temperature is lowered to about 100 degrees, add an organic solvent with a mass fraction of 20%, stir and mix evenly, and then discharge. Measure the viscosity, hydroxyl value, acid value, solid content, etc. of the reaction so...

Embodiment 2

[0033] The raw material TMP rectification heavy residue and phthalic anhydride, isophthalic acid according to the mass ratio of 3.6~3.7:1:1.5, the solid acid p-TSA with a mass fraction of 0.21%, and the triphenyl phosphite with a mass fraction of 0.01% Add xylene with a mass fraction of 3% into a reactor equipped with a stirrer, a thermometer, a water separator (filled with xylene) and a condenser, and slowly raise the temperature. After the raw materials are melted, start stirring, and wait until the temperature rises to 220°C Then carry out constant temperature reaction, and take samples every hour to measure the acid value of the reaction system. Stop heating immediately when the acid value is less than 5mgKOH / g. After the temperature is lowered to about 100 degrees, add an organic solvent with a mass fraction of 20%, stir and mix evenly, and then discharge. Measure the viscosity, hydroxyl value, acid value and solid content of the reaction solution.

[0034] Viscosity (s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
acid valueaaaaaaaaaa
acid valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing alkyd resin by taking TMP rectified heavy residual liquid as a raw material. The method is characterized by being conducted according to the following steps that the raw material-TMP rectified heavy residual liquid raw material, polybasic organic acid, an acid catalyst and a water carrying agent are added into a reactor or added with an antioxidant, wherein an acid antioxidant or a phosphite antioxidant is adopted as the antioxidant; the temperature of the reactor is slowly increased, stirring starts after the raw material is fused, a constant-temperature reaction is conducted for 4-6 h after the temperature reaches a set reaction temperature of 200 DEG C to 240 DEG C; sampling is conducted every 55-65 min, the acid value of a reaction system is measured, and an alkyd resin prepolymer is obtained; the acid value of the reaction system needs to be controlled to be smaller than 5 mgKOH / g, and after the acid value meets the requirement, heating stops at once; after the temperature is lowered to the set 100+ / -5 DEG C, an organic solvent is added, after the liquid is stirred and mixed to be uniform, discharging is conducted, and then the alkyd resin product is obtained. The method is beneficial for protecting the environment and preparing the alkyd resin which has the cost performance advantage and the high performance in a batched mode.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and relates to the preparation of corresponding alkyd resin products by using TMP rectification heavy raffinate as a raw material, adding corresponding polyacids, and under the action of a catalyst, an antioxidant and a water-carrying agent. Background technique [0002] The heavy raffinate of TMP rectification is the raffinate produced through a series of steps such as neutralization, concentration, extraction and rectification during the production of trimethylolpropane by the Cannizzaro method. The raffinate contains a large amount of heavy components, including ditrimethylolpropane (DTMP), trimethylolpropane (TMP), trimethylolpropane bis-monolinear formal (TMP-BMLF), cyclic Trimethylolpropane formal (MCF), etc. In the past, direct incineration was mainly used to treat TMP heavy residue, which is not conducive to environmental protection and resource reuse, and is also not conducive to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/20
CPCC08G63/20
Inventor 潘鹤林宋仁高徐超顾小伟牛福胜束铭杰徐婷王有才吴博航
Owner 江西高信前沿科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com