Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Reexamination Certificate
2007-01-17
2011-12-13
Bullock, In Suk (Department: 1772)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By addition of entire unsaturated molecules, e.g.,...
C585S502000, C585S510000, C585S511000, C585S512000, C585S520000, C585S521000, C585S522000, C585S523000
Reexamination Certificate
active
08076524
ABSTRACT:
The present invention relates to a method for preparing olefin comonomers from ethylene. The comonomer generated can be used in a subsequent process, such as a polyethylene polymerization reactor. The comonomer generated can be transported, optionally without isolation or storage, to a polyethylene polymerization reactor. One method includes the steps of: feeding ethylene and a catalyst in a solvent/diluent to one or more comonomer synthesis reactors; reacting the ethylene and the catalyst under reaction conditions sufficient to produce an effluent comprising a desired comonomer; forming a gas stream comprising unreacted ethylene, and a liquid/bottoms stream comprising the comonomer, optionally by passing the effluent to one or more downstream gas/liquid phase separators; and purifying at least a portion of said liquid/bottoms stream by removing at least one of solid polymer, catalyst, and undesirable olefins therefrom.
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Ajinkya Milind Bholanath
Buchanan John Scott
Lattner James R.
Reimers Jay L
Sankaranarayanan Krishnan
Abdon Robert L.
Bullock In Suk
Etherton Bradley
ExxonMobil Chemical Patents Inc.
Reid Frank E.
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