Title:
PROCESS FOR POLYMERIZING PROPYLENE
Document Type and Number:
Japanese Patent JP3242698
Kind Code:
B2
Abstract:
PURPOSE: To achieve a marked increase in the catalyst activity, reduction in the catalyst cost, reduction in the amount of catalyst residue in polypropylene products, a process excluding the deashing step, and streamline of the process in a polypropylene manufacturing process which employs a propylene feedstock containing FCC propylene.
CONSTITUTION: A propylene feedstock, which contains 5wt.% or more FCC propylene obtained by fluid catalytic cracking of heavy hydrocarbon oil, is polymerized by first contacting it with a complex of copper oxide and zinc oxide, or a complex of copper oxide, aluminum oxide and silicon oxide, and then with a catalyst system which comprises a solid catalyst component comprising Ti, Mg and halogen as the essential constituents, and an organoaluminum compound component, thereby providing 5000g or more of polymers per g of the solid catalyst component.
Inventors:
Sakura I Hideo
Yoshimoto Yamamoto
Takao Tayano
Yoshimoto Yamamoto
Takao Tayano
Application Number:
JP16295892A
Publication Date:
December 25, 2001
Filing Date:
June 22, 1992
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08F4/654; C07C7/00; C07C11/06; C08F4/60; C08F10/00; C08F10/06; (IPC1-7): C08F10/06; C08F4/654
Other References:
【文献】特許3017856(JP,B2)
【文献】特許3017857(JP,B2)
【文献】米国特許3549719(US,A)
【文献】特許3017857(JP,B2)
【文献】米国特許3549719(US,A)
Attorney, Agent or Firm:
Kazuo Sato (2 outside)