Title:
エチレン重合方法及びこれに利用される管形反応器
Document Type and Number:
Japanese Patent JP4177843
Kind Code:
B2
Abstract:
A method for continuous ethylene polymerization under high pressure using a polymerization reaction zone comprises a primary reaction zone and a secondary reaction zone wherein the secondary reaction zone has a length of 1.5-6.5 times the length of the primary reaction zone and a cross-sectional area of 1.2-4 times the cross-sectional area of the primary reaction zone. Ethylene is fed continuously into the primary reaction zone at the starting point of the primary reaction zone. Low temperature initiator alone, or an initiator mixture containing mainly low temperature initiator is introduced into the primary reaction zone at the starting point of the primary reaction zone. Initiator alone or an initiator mixture is introduced into the secondary reaction zone at two or more different points of the secondary reaction zone. Ethylene polymer products of various physical properties are produced with high productivity, while the pressure drop is minimized.
Inventors:
Lee Jin
Chung Yong
Lee Ming
Roh
Chung Yong
Lee Ming
Roh
Application Number:
JP2005329091A
Publication Date:
November 05, 2008
Filing Date:
November 14, 2005
Export Citation:
Assignee:
SAMSUNG TOTAL PETROCHEMICALS CO.,LTD.
International Classes:
C08F2/01; C08F10/02
Domestic Patent References:
| JP57126806A | ||||
| JP2007510023A | ||||
| JP2003532763A | ||||
| JP2003535167A | ||||
| JP2006519900A |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
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