Butyl reactor overflow plugging and post reactor polymerization

Details Butyl reactor overflow plugging and post reactor polymerization Butyl reactor overflow plugging and post reactor polymerization

1978-03-31

1979-05-15

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528487, 528492, 528493, 528495, C08F 602

Patent

active

041549244

ABSTRACT:
Methods for producing rubbery polymers are disclosed comprising forming a slurry of such rubbery polymers, preferably butyl rubber prepared from a mixture of a C.sub.4 to C.sub.8 isoolefin and a C.sub.4 to C.sub.10 conjugated mutiolefin in a low temperature reaction zone in the presence of a Friedel-Crafts catalyst and an organic halide diluent, passing that slurry into an overflow passage for transporting the slurry to a recovery system, and injecting a mixture of a hydrocarbon liquid having a boiling point above the boiling point of the organic halide and a polar organic catalyst quenching agent into said overflow passage at a point adjacent to the outlet from the reaction zone in order to prevent continued production of polymer in the overflow passage and to maintain the overflow passage substantially free of agglomerates.

REFERENCES:
patent: 2356128 (1944-08-01), Thomas et al.
patent: 2455665 (1948-12-01), Ford et al.
patent: 3023191 (1962-02-01), Tegge et al.
patent: 3257349 (1966-06-01), Johnson et al.

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