Process for separating a resin phase from a solvent solution con

Details Process for separating a resin phase from a solvent solution con Process for separating a resin phase from a solvent solution con

1990-12-24

1992-03-24

Teskin, Fred

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

Synthetic resins

Treating polymer containing material or treating a solid...

528481, 528498, 264 5, 165160, C08F 612

Patent

active

050989944

ABSTRACT:
A process for separating a resin phase from a solvent solution containing a solvent, demetallized oil and resin which process comprises: (a) directing the flow of the solvent solution in a downward direction over a portion of a generally vertically positioned heat-exchange surface thereby heating the solvent solution to precipitate a resin phase; (b) reversing the flow of the solvent solution having a reduced concentration of resin to a generally upward direction; (c) recovering the solvent solution having a reduced concentration of resin; and (d) recovering the resin phase produced in step (a).

REFERENCES:
patent: 3687915 (1972-08-01), Nistri et al.

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