Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Organic polymerization
Reexamination Certificate
2007-04-04
2010-11-23
Wu, David (Department: 1796)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Organic polymerization
C526S068000, C526S071000, C526S352000
Reexamination Certificate
active
07837950
ABSTRACT:
The invention provides an apparatus and a process for the high pressure polymerization of ethylene, optionally with one or more comonomers, in which unreacted monomer is separated from the polymer in a separation system having at least first, second and third separation vessels and in which off gas from the second vessel is recombined back into the product mixture upstream of the first separation vessel, preferably using a jet pump.
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patent: 4558105 (1985-12-01), Carrick et al.
patent: 0527688 (1993-02-01), None
patent: 1338280 (1973-11-01), None
Claessens Roger
Lammens Henri Aime
Vaes Geert
Van Nuland Tom
Eng Elizabeth
ExxonMobil Chemical Patents Inc.
Wu David
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