Title: Catalyst feeding apparatus

Abstract: Apparatus is provided to feed controlled quantities of a catalyst slurry to an olefin polymerization reactor in a controlled time sequence. The apparatus includes a feed line for continuously feeding an inert hydrocarbon liquid such as hexane or isobutane to the reactor. A bypass loop is provided in the feed line and is equipped with auxiliary apparatus to charge the loop with a predetermined quantity of catalyst slurry. At preselected timed intervals, the hydrocarbon feed is fed through the bypass loop to sweep the charge of catalyst slurry to the polymerization reactor.

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Other info:

Inventors: Kellum, Gene E. (Orange, TX, US)
Thompson, Jack W. (Orange, TX, US)

Application Number: 789051
Filing Date: 1977-04-20
Publication_date: 1978-10-31
Assignee: Gulf Oil Corporation (Pittsburgh, PA)
Primary Class(es): 526/79 422/234, 526/86
Other Classes:
US Patent Ref:

3012024	Dec, 1961	Kavesh	526/86.
3257363	Jun, 1966	Miller et al.	526/86.
3790550	Feb, 1974	Miller	526/79.
3846394	Nov, 1974	Mitacek	526/79.
3876602	Apr, 1975	Calvert et al.	526/86.

Other Refs:
Primary Examiner: Holler, Alan
Assistant Examiner:
Attorney: Kelly; Richard L.