Purifying method of crude polyaryletherketone product
A technology of polyaryletherketone and purification method, which is applied in the field of purification of polymer materials, can solve the problems of large amounts of waste liquid, large environmental impact, and high equipment requirements, and achieves reduced post-processing costs, simple and easy operation, and guaranteed The effect of product quality
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0026] Example 1
[0027] Add 60 kg of crude polyaryl ether ketone to the first stirred tank, and then add 600 kg of a mixed solution of formic acid aqueous solution and acetylacetone. The mass ratio of formic acid aqueous solution to acetylacetone is 4.2:1, the concentration of formic acid aqueous solution is 80%, and the temperature is raised to 100°C. , Sealed, stirred, refluxed and washed for 10h, centrifuged to remove most of the solution, put the material in the second stirred tank, stirred and washed with 1200kg of 60% formic acid aqueous solution at room temperature for 2h, centrifuged, the material was in the third stirred tank with 600kg of water at room temperature Washed for 4h, centrifuged, dried in a double cone dryer at 140℃ for 10h, and then dried under negative pressure -0.1MPa for 3h. After testing, there was no organic solvent residue. The catalyst metal ion residue in the polyaryletherketone was 19ppm, and the moisture content was 0.2 %.
Example Embodiment
[0028] Example 2
[0029] Add 60 kg of crude polyaryl ether ketone to the first stirred tank, and then add 1200 kg of a mixed solution of formic acid aqueous solution and acetylacetone. The mass ratio of formic acid aqueous solution to acetylacetone is 3.8:1, the concentration of formic acid aqueous solution is 95%, and the temperature is increased to 105°C , Sealed, stirred, refluxed and washed for 8h, centrifuged to remove most of the solution, put the material in the second stirred tank, stirred and washed with 600kg 75% formic acid aqueous solution at room temperature for 4h, centrifuged, the material was put in the third stirred tank with 1200kg of water at room temperature Washed for 4h, centrifuged, dried in a double cone dryer at 130℃ for 10h, then dried under negative pressure -0.085MPa for 4h. After testing, no organic solvent remained. The catalyst metal ion in the polyaryletherketone was 13ppm and the moisture content was 0.3 %.
Example Embodiment
[0030] Example 3
[0031] Add 60 kg of crude polyaryl ether ketone to the first stirred tank, and then add 1100 kg of a mixed solution of formic acid aqueous solution and acetylacetone. The mass ratio of formic acid aqueous solution to acetylacetone is 4:1, the concentration of formic acid aqueous solution is 88%, and the temperature is increased to 104°C. , Sealed, stirred, refluxed and washed for 9h, centrifuged to remove most of the solution, put the material in the second stirred tank, stirred and washed with 1000kg of 68% formic acid aqueous solution at room temperature for 3h, centrifuged, the material was placed in the third stirred tank with 1000kg of water at room temperature Washed for 3 hours, centrifuged, dried in a double cone dryer at 140°C for 8 hours, and then dried under negative pressure -0.09MPa for 3 hours. After testing, there was no organic solvent residue. The catalyst metal ion residue in the polyaryl ether ketone was 16ppm and the moisture content was 0.4....
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap