JPS5688423A - Vertical polycondensation reactor for polyester - Google Patents
Vertical polycondensation reactor for polyesterInfo
- Publication number
- JPS5688423A JPS5688423A JP16590179A JP16590179A JPS5688423A JP S5688423 A JPS5688423 A JP S5688423A JP 16590179 A JP16590179 A JP 16590179A JP 16590179 A JP16590179 A JP 16590179A JP S5688423 A JPS5688423 A JP S5688423A
- Authority
- JP
- Japan
- Prior art keywords
- agitating blade
- blade
- reactor
- inclination
- reactant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To increase the reaction rate by rapidly discharging volatile components produced outside the process line and to enable a product of excellent quality to be obtd., by providing an upper agitating blade of a reactant-lifting type and a lower agitating blade, said upper agitating blade having a different angle of inclination from that of said lower agitating blade.
CONSTITUTION: Each blade 8 is composed of an upper agitating blade of a reactant- lifting type 9, which has an angle θ1 of inclination ranging 10°W50° and is tapered toward the upper end of the blade, and a lower agitating blade 8 which has an angle θ2 of inclination of at least 50°. The blades 8 are fixed to the vertical rotating shaft 7 of a vertical polycondensation reactor 1 by means of a supporting rod 11. A starting reactant such as bis-β-hydroxyethyl terephthalate and/or a low polymer thereof is introduced through a port 4 into the reactor 1 up to the level of a liquid level 3. While the reactor 1 is heated under reduced pressure, the blades 9, 10 are rotated by the rotating shaft 7. Further, while discharging volatile components produced such as ethylene glycol through an outlet 6, the polycondensation reaction is conducted and the resulting polyester is recovered from a withdrawing port 5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16590179A JPS5688423A (en) | 1979-12-20 | 1979-12-20 | Vertical polycondensation reactor for polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16590179A JPS5688423A (en) | 1979-12-20 | 1979-12-20 | Vertical polycondensation reactor for polyester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5688423A true JPS5688423A (en) | 1981-07-17 |
Family
ID=15821135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16590179A Pending JPS5688423A (en) | 1979-12-20 | 1979-12-20 | Vertical polycondensation reactor for polyester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5688423A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111595A (en) * | 1978-02-20 | 1979-08-31 | Toray Ind Inc | Polyester polymerization reactor |
-
1979
- 1979-12-20 JP JP16590179A patent/JPS5688423A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111595A (en) * | 1978-02-20 | 1979-08-31 | Toray Ind Inc | Polyester polymerization reactor |
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