Method for treating resin in a purge vessel

Details Method for treating resin in a purge vessel Method for treating resin in a purge vessel

1987-04-28

1988-07-19

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528499, 528503, 55 52, 55 54, C08F 602

Patent

active

047586540

ABSTRACT:
A method for removing unpolymerized gaseous monomers from a solid olefin polymer in a single purge vessel while deactivating Ziegler-Natta catalysts and organometallic catalyst residues present in said solid olefin polymer by utilizing a two diameter purge vessel wherein hydrolysis of the catalysts are effected in the portion of the reactor having the smaller diameter with the gaseous monomers being removed in the larger diameter portion.

REFERENCES:
patent: 2918461 (1959-12-01), Flynn
patent: 3488339 (1970-01-01), Carter
patent: 4314053 (1982-02-01), Lin et al.
patent: 4332933 (1982-06-01), DiDrusco et al.
patent: 4372758 (1983-02-01), Bobst et al.

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