C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
23/379, 402/613
C08F 10/00 (2006.01) B01J 8/24 (2006.01) B01J 8/38 (2006.01) C08F 2/34 (2006.01)
Patent
CA 1325881
ABSTRACT OF THE DISCLOSURE INSTALLATION AND PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS IN A FLUIDIZED-BED REACTOR WITH THE INTRODUCTION OF AN ORGANOMETALLIC COMPOUND A process for polymerising olefins in the presence of a Ziegler-Natta type catalyst or a catalyst based on chromium oxide using a gas-phase fluidised-bed reactor (1) having a recycle line (5) for removing the olefin-containing gas from the top of the reactor and returning it to the bottom of the reactor, the recycle line having at least one heat exchanger (7,10) for cooling the olefin-containing gas, which process comprises introducing an organometallic compound, as a mixture or as a solution in at least one C3 to C12 liquid olefin, into the recycle line at a point upstream of a heat exchanger (10).
606331
Havas Laszlo
Rowley Kenneth
Bp Chemicals Limited
Fetherstonhaugh & Co.
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