Method of removing heat from polymerization reactions of monomer

Details Method of removing heat from polymerization reactions of monomer Method of removing heat from polymerization reactions of monomer

1975-10-16

1977-03-15

Holler, Alan

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

Synthetic resins

Removing and recycling removed material from an ongoing...

526 61, 526 67, 526 87, 526 88, C08F 234, C08F 1000

Patent

active

040125734

ABSTRACT:
An improved method of removing heat from polymerization reactions of normally gaseous monomers in the gas phase comprising feeding the monomer in liquid form to a polymerization zone, immediately after entering said zone, removing a portion of said gaseous monomer from the polymerization zone, liquefying said portion of monomer by cooling it at the same pressure as that prevailing in the polymerization zone, recycling the liquefied monomer to the polymerization zone together with fresh monomer in liquid form and causing said liquid monomer to change to the gaseous form immediately after entering said zone. The improvement consists in not only condensing the monomer outside the polymerization zone but also storing the same, in keeping the temperature in the polymerization zone constant by regulating the rate at which liquid monomer is fed to the zone, and in keeping the temperature and pressure in the polymerization zone within limits conducive to the gaseous state of the monomer.

REFERENCES:
patent: 3256263 (1966-06-01), Wisseroth et al.
patent: 3615253 (1971-10-01), Warzel
patent: 3625932 (1971-12-01), Green
patent: 3639377 (1972-02-01), Trieschmann et al.
patent: 3709853 (1973-01-01), Karapinka
patent: 3770714 (1973-11-01), Dorschner et al.
patent: 3944534 (1976-03-01), Sennari et al.
patent: 3971768 (1976-07-01), Peters et al.

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