Process for recovering unreacted propylene in the mass...

Details Process for recovering unreacted propylene in the mass... Process for recovering unreacted propylene in the mass...

C - Chemistry, Metallurgy

07

C

260/719.5

C07C 11/06 (2006.01) C08F 6/28 (2006.01)

Patent

CA 1109494

PROCESS FOR RECOVERING UNREACTED PROPYLENE IN THE MASS POLYMERIZATION Abstract of the disclosure During the recovery of the unreacted propylene from the mother liquor obtained in the polymerization of liquid propylene, the major part of the propylene is evaporated in a first evaporation step at a low temperature and the remaining part is evaporated in a second evaporator at a high temperature. In this way an early agglomerization of the atactic and/or low- molecular weight polymer dissolved in the mother liquor and fouling of the heat exchanger tubes and/or of the column trays is avoided.

329816

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