Method for high temperature phase separation of solutions contai

Details Method for high temperature phase separation of solutions contai Method for high temperature phase separation of solutions contai

1984-06-25

1986-11-18

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528491, C08F 612

Patent

active

046237127

ABSTRACT:
A process is disclosed for recovering polymer from a solution of the polymer in a solvent by high temperature phase separation in which low molecular weight hydrocarbon is added to the solution, the solution and the added hydrocarbon are subjected to a temperature and pressure so that one liquid phase is formed and the pressure is adjusted to form two phases, namely, a polymer-lean liquid phase and a polymer-rich liquid phase. The polymer-rich liquid phase is separated from the polymer-lean liquid phase, and the polymer is then recovered from the polymer-rich liquid phase.

REFERENCES:
patent: 4319021 (1982-03-01), Irani et al.

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