Technology Unit

A heat exchanger (12) is arranged as part of a heat integrating arrangement and heated by a lean phase emerging from an upper layer (20) in a liquid phase separator (14), and provides an initial increase in the temperature of the polymer solution in the conduit (11).

The concentrated polymer rich phase is passed to a low-pressure separator in the form of flash tank (34) where evaporated solvent and monomer are separated
from the polymer-rich phase emerging from the liquid phase separator (14).