TH19389A - Method and tower for removal of residual monomers. - Google Patents

Abstract

The proposed invention will provide a method and a tower for Eliminate monomer residues in the Vinyl chloride (PVC) resin is produced when residual monomer has been removed from the PVC mixture after the mixture has undergone polymerization. Due to contact with water vapor, the bubbles generated in the mixture are controlled in order to maintain a stable liquid state. Residual monomer will Effectively eliminated The tower is of two or more levels and is divided into upper and lower sections. The inner diameter of the upper is greater than the lower. Each section has at least one perforated sheet, with at least one additional water discharge device in the tower.

Claims (3)

1. A tower for removal of residual monomer consisting of the following structure: 1) tower (12) having a normal cylindrical shape or an inverted circular cone with two or more different internal diameters 2) the inner diameter of The upper part of the tower is greater than the lower part of the tower. 4) At least one perforated tray (1) is located on that top of the tower 5) At least one perforated tray (1a, 1b, 1c) is arranged on the section. The bottom of the tower 6) The flow section for The flow of the mixture to the bottom perforated pan (1a) is arranged between the perforated trays 7) The path (11) for upward discharge in the tower is arranged on the bottom of the tower 8) The hot water discharge (5) is supplied through at least one perforated tray in the tower and 9) compartment (10) for discharge. A mixture of treated vinyl chloride resins is provided at the bottom. 2. Tower according to claim 1, where the inner diameter of the top of the tower is from 1.2 to 5 times that of the lower part of the tower. 3. Use the tower according to claim 1 or 2 to eliminate residual monomer.