Method of removing water from liquid olefin in the polymerizatio

Details Method of removing water from liquid olefin in the polymerizatio Method of removing water from liquid olefin in the polymerizatio

1976-09-30

1978-01-10

Holler, Alan

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

Synthetic resins

Removing and recycling removed material from an ongoing...

526 77, C08F 604, C08F 610, C08F 1006

Patent

active

040680533

ABSTRACT:
Removing water and light ends from recycle liquid olefin monomer and fresh liquid olefin monomer feed before catalytic polymerization thereof in said liquid state with a water sensitive catalyst, by flowing them through a mass transfer plate tower with a reboiler which vaporizes them upwardly through openings in the plates of said tower and in the form of bubbles through layers of liquid monomer reflux maintained on said plates by weirs and downcomers by means of which said reflux is flowed from each plate downwardly to the plate below it and, as a layer, along the top of the plate and thence downwardly to the next lower plate, condensing in a reflux condenser the vapor from the top of said tower, removing from said condenser as a vapor said light ends, removing water from said condenser as a heavy condensed liquid fraction and refluxing back to the top of said tower as a lighter liquid fraction, condensed liquid monomer. Preferably the tower is a valve tray tower and the plates are valve trays.

REFERENCES:
patent: 2742454 (1956-04-01), Rearick et al.
patent: 2813089 (1957-11-01), Twaddle et al.
patent: 3109837 (1963-11-01), Lockheed et al.
patent: 3255171 (1966-06-01), Eilbracht et al.
patent: 3296241 (1967-01-01), Berger

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