Patent ID: 11970558
Assignee: LG CHEM, LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 10:
11. A solvent recovery apparatus comprising:
a reactor supplied with polymerization reactants including one or more monomers and a solvent, wherein the reactor discharges a stream including a polymer solution obtained by polymerization of the polymerization reactants;
a separator supplied with the stream discharged from the reactor, wherein the separator discharges an upper discharge stream including the solvent, wherein the solvent is in a gaseous phase, and a lower discharge stream including the polymer solution;
a heating device, which heats a divergence stream comprising a part of the lower discharge stream to reflux the divergence stream to the separator;
a pressure adjustment valve, which adjusts a vapor mass fraction of the divergence stream refluxed to the separator after being heated by the heating device; and
a steam stripping process unit supplied with a residue stream including a remainder of the lower discharge stream from the separator, which volatilizes the solvent in the polymer solution.