JPS57128705A - Vapor-phase polymerizing method of olefin - Google Patents
Vapor-phase polymerizing method of olefinInfo
- Publication number
- JPS57128705A JPS57128705A JP1442981A JP1442981A JPS57128705A JP S57128705 A JPS57128705 A JP S57128705A JP 1442981 A JP1442981 A JP 1442981A JP 1442981 A JP1442981 A JP 1442981A JP S57128705 A JPS57128705 A JP S57128705A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- polymerizer
- gas stream
- component
- fine powdery
- 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.)
- Granted
Links
Landscapes
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To obtain the titled polymer having a high bulk density and good powdery fluidity with a slight amount of fine powder, by discharging a polymer from a mixing type polymerizer, reacting a high-speed gas stream on the polymer, accompanying the fine powdery polymeric component with the gas stream, and circulating the stream through the polymerizer.
CONSTITUTION: In carrying out the continuous vapor-phase polymerization of an olefin in a mixing type polymerizer, a polymer is discharged from the polymerizer, and a high-speed gas stream is made to act on the polymer to accompany the fine powdery component in the polymer with the gas stream and circulate the polymeric component through the polymerizer. In the process, the fine powdery component is made to accompany the gas stream in a minimal amount preferentially at a good classifying efficiency. For example, the polymer is taken out to a vertical container having a diameter (1/14)W(1/5) that of the polymerizer, and the gas is blown from the bottom at a velocity of 40W1,000cm/ sec. The gas stream containing the fine powdery component is circulated through the polymerizer from the top. Preferably, 0.1W50wt% polymer discharged from the polymerizer is circulated therethrough.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1442981A JPS57128705A (en) | 1981-02-04 | 1981-02-04 | Vapor-phase polymerizing method of olefin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1442981A JPS57128705A (en) | 1981-02-04 | 1981-02-04 | Vapor-phase polymerizing method of olefin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57128705A true JPS57128705A (en) | 1982-08-10 |
JPS6243441B2 JPS6243441B2 (en) | 1987-09-14 |
Family
ID=11860773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1442981A Granted JPS57128705A (en) | 1981-02-04 | 1981-02-04 | Vapor-phase polymerizing method of olefin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57128705A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60225416A (en) * | 1984-04-24 | 1985-11-09 | 三井化学株式会社 | High performance electret and air filter |
JPS61209210A (en) * | 1985-02-15 | 1986-09-17 | アモコ・コーポレーシヨン | Method and apparatus for circulating carrier solids during off gas in gas phase polyolefin reactor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53111384A (en) * | 1977-01-12 | 1978-09-28 | Montedison Spa | Polymerization process for ethylene in gaseous state |
JPS559048A (en) * | 1978-07-06 | 1980-01-22 | Toyama Chem Co Ltd | Novel preparation of 7-substituted or non-substituted amino-3-substituted thiomethylcephem carboxylic acids |
JPS55116716A (en) * | 1979-03-05 | 1980-09-08 | Chisso Corp | Continuous preparation of propylene-ethylene block copolymer |
-
1981
- 1981-02-04 JP JP1442981A patent/JPS57128705A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53111384A (en) * | 1977-01-12 | 1978-09-28 | Montedison Spa | Polymerization process for ethylene in gaseous state |
JPS559048A (en) * | 1978-07-06 | 1980-01-22 | Toyama Chem Co Ltd | Novel preparation of 7-substituted or non-substituted amino-3-substituted thiomethylcephem carboxylic acids |
JPS55116716A (en) * | 1979-03-05 | 1980-09-08 | Chisso Corp | Continuous preparation of propylene-ethylene block copolymer |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60225416A (en) * | 1984-04-24 | 1985-11-09 | 三井化学株式会社 | High performance electret and air filter |
JPH0263282B2 (en) * | 1984-04-24 | 1990-12-27 | Mitsui Petrochemical Ind | |
JPS61209210A (en) * | 1985-02-15 | 1986-09-17 | アモコ・コーポレーシヨン | Method and apparatus for circulating carrier solids during off gas in gas phase polyolefin reactor |
Also Published As
Publication number | Publication date |
---|---|
JPS6243441B2 (en) | 1987-09-14 |
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