JPS5710608A - Preparation of olefin polymer or copolymer using plural reactors - Google Patents
Preparation of olefin polymer or copolymer using plural reactorsInfo
- Publication number
- JPS5710608A JPS5710608A JP8563880A JP8563880A JPS5710608A JP S5710608 A JPS5710608 A JP S5710608A JP 8563880 A JP8563880 A JP 8563880A JP 8563880 A JP8563880 A JP 8563880A JP S5710608 A JPS5710608 A JP S5710608A
- Authority
- JP
- Japan
- Prior art keywords
- olefin
- stage
- reactor
- polymer
- copolymer
- 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
Abstract
PURPOSE: To prepare a polymer having broad molecular weight distribution and giving a film with little fish-eye, by the multi-stage polymerization of an olefin in the presence of a specific Ziegler catalyst using a plurarity of reactors.
CONSTITUTION: An olefin monomer (e.g. ethylene) is polymerized in the first-stage tubular reactor 1 (pref. the inner diameter is 0.004W0.5m and the length of the tube is 50W3,000m) at 30W120°C using a Ziegler catalyst capable of producing 5,000W 1,000,000g/g-catalyst.hour of olefin polymer or copolymer, while precipitating the produced olefin (co)polymer continuously from the reaction liquid and keeping the flow velocity of the slurry in the tube at 2W20m/sec. The polyolefin obtained from the first-stage reactor is further polymerized in the second-stage stirred tank reactor 2 at about 50W300°C controlling the hydrogen concentration in the gaseous phase of the upper part of the reactor.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8563880A JPS5710608A (en) | 1980-06-23 | 1980-06-23 | Preparation of olefin polymer or copolymer using plural reactors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8563880A JPS5710608A (en) | 1980-06-23 | 1980-06-23 | Preparation of olefin polymer or copolymer using plural reactors |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5710608A true JPS5710608A (en) | 1982-01-20 |
Family
ID=13864365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8563880A Pending JPS5710608A (en) | 1980-06-23 | 1980-06-23 | Preparation of olefin polymer or copolymer using plural reactors |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5710608A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI770627B (en) * | 2019-10-04 | 2022-07-11 | 印度商蒂魯瑪萊化工有限公司 | Production of malic acid using tubular and stirred tank reactors |
-
1980
- 1980-06-23 JP JP8563880A patent/JPS5710608A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI770627B (en) * | 2019-10-04 | 2022-07-11 | 印度商蒂魯瑪萊化工有限公司 | Production of malic acid using tubular and stirred tank reactors |
US11597693B2 (en) | 2019-10-04 | 2023-03-07 | Thirumalai Chemicals Limited | Production of malic acid using tubular and stirred tank reactors |
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