JPS57168904A - Production of polyolefin - Google Patents
Production of polyolefinInfo
- Publication number
- JPS57168904A JPS57168904A JP5304881A JP5304881A JPS57168904A JP S57168904 A JPS57168904 A JP S57168904A JP 5304881 A JP5304881 A JP 5304881A JP 5304881 A JP5304881 A JP 5304881A JP S57168904 A JPS57168904 A JP S57168904A
- Authority
- JP
- Japan
- Prior art keywords
- computer
- vessel
- inputted
- polyolefin
- production
- 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
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To produce a polyolefin having a constant MW at a constant production rate, by installing a computer in the production equipment according to a specified manner in the production of a polyolefin using a Ziegler-Natta catalyst.
CONSTITUTION: Propylene 10, hydrogen 11 as a MW modifier, solvent 15, Ziegler- Natta catalyst 12, etc., are fed into a polymerization vessel F and polymerized while the temperature in the vessel F is controlled by, for example, circulating cooling water through a jacketI. The quantity of heat generated in the vessel F is detected by the temperature, flow rate, etc., of the cooling water, and the signals are inputted into a computer A. Further, the hydrogen concentration in the vapor phase and, if necessary, the slurry concentration, etc., are detected and inputted into the computer A. Then, valves for supplying catalyst 12, hydrogen 11, solvent 15 and propylene 10 to the vessel F are operated by means of control operation output of the computer A in reply to changes in the quantities of inputted signals.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5304881A JPS57168904A (en) | 1981-04-10 | 1981-04-10 | Production of polyolefin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5304881A JPS57168904A (en) | 1981-04-10 | 1981-04-10 | Production of polyolefin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57168904A true JPS57168904A (en) | 1982-10-18 |
Family
ID=12931973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5304881A Pending JPS57168904A (en) | 1981-04-10 | 1981-04-10 | Production of polyolefin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57168904A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58111808A (en) * | 1981-12-25 | 1983-07-04 | Mitsubishi Chem Ind Ltd | Method and apparatus for production of polyolefin |
JPS6181409A (en) * | 1984-09-28 | 1986-04-25 | Mitsui Toatsu Chem Inc | Method of controlling molecular weight |
JPS6189211A (en) * | 1984-10-09 | 1986-05-07 | Mitsui Toatsu Chem Inc | Polymerization of propylene |
-
1981
- 1981-04-10 JP JP5304881A patent/JPS57168904A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58111808A (en) * | 1981-12-25 | 1983-07-04 | Mitsubishi Chem Ind Ltd | Method and apparatus for production of polyolefin |
JPH0348209B2 (en) * | 1981-12-25 | 1991-07-23 | Mitsubishi Chem Ind | |
JPS6181409A (en) * | 1984-09-28 | 1986-04-25 | Mitsui Toatsu Chem Inc | Method of controlling molecular weight |
JPH0550527B2 (en) * | 1984-09-28 | 1993-07-29 | Mitsui Toatsu Chemicals | |
JPS6189211A (en) * | 1984-10-09 | 1986-05-07 | Mitsui Toatsu Chem Inc | Polymerization of propylene |
JPH0519561B2 (en) * | 1984-10-09 | 1993-03-17 | Mitsui Toatsu Chemicals |
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