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

Claim 0:
1. A method of recovering a solvent, the method comprising:
supplying polymerization reactants including one or more monomers and a solvent to a reactor to obtain a polymer solution;
supplying a stream including the polymer solution to a separator to separate an upper discharge stream including the solvent, wherein the solvent is in a gaseous phase, and a lower discharge stream including the polymer solution; and
heating a divergence stream including a part of the lower discharge stream from the separator with a heating device and refluxing the divergence stream to the separator;
supplying a residue stream including a remainder of the lower discharge stream from the separator to a steam stripping process unit; and
adjusting a vapor mass fraction of the divergence stream refluxed to the separator with a pressure adjustment valve after being heated by the heating device.