Polymerization process

Details Polymerization process Polymerization process

1996-07-09

1998-09-08

Weber, Thomas R.

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

Synthetic resins

Removing and recycling removed material from an ongoing...

526 88, 526352, 526901, C08F 234

Patent

active

058046771

ABSTRACT:
The invention relates to continuous gas fluidized bed polymerization of olefins, especially ethylene, propylene, or mixtures of these with other alpha olefins, wherein the monomer-containing recycle gas employed to fluidize the bed is cooled to condense out at least some liquid hydrocarbon. The condensed liquid, which can be a monomer or an inert liquid, is separated from the recycle gas and is fed directly to the bed to produce cooling by latent heat of evaporation. The liquid feeding to the bed can be through gas-induced atomizer nozzles (FIG. 2), or through liquid-only nozzles. The process provides substantially improved productivity of gas fluidized bed polymerization of olefins.

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Invention Notice of S. Berst found in Abandoned U.S. Patent No. 361,547, Change of Inventorship submission to USPTO, dated Sep. 9, 1982.

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