Gas phase olefin polymerizations using dual donor catalyst...

Details Gas phase olefin polymerizations using dual donor catalyst... Gas phase olefin polymerizations using dual donor catalyst...

2005-05-31

2005-05-31

Choi, Ling-Siu (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S090000, C526S116000, C526S123100, C526S088000

Reexamination Certificate

active

06900281

ABSTRACT:
A gas-phase olefin polymerization process in a plug flow reactor uses a catalyst system containing a magnesium halide supported titanium-containing component, an organoaluminum component, and at least one external electron donor component; in the process a first external donor component is added to the reactor at an injection point axially near an injection point for the supported transition metal containing component, and at least a second external donor component is added to the reactor axially downstream from the injection point for the first external donor component.

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Walas, Stanley, M.,Chemical Process Equipment Selection and Design, 1988, pp. 567-569, Butterworth Publishers, USA.
Caracotsios, Dr. Mike, “Theoretical Modeling of Amoco's Gas Phase Horizontal Stirred Bed Reactor for the Manufacturing of Polypropylene Resins,”Chemical Engineering Science, 1992, pp. 2591-2596, vol. 47, No. 9-11, Pergamon Press Ltd, Great Britain.

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