Title:
WASTEWATER RECYCLING METHOD
Document Type and Number:
Japanese Patent JP2019136678
Kind Code:
A
Abstract:
To provide wastewater recycling methods that can favorably recycle the wastewater containing metal ions and halide ions generated when phase separation is performed by mixing a polymer solution obtained by a polymerization reaction using a homogeneous catalyst containing a metal component with water.SOLUTION: The present invention provides a recycling method for wastewater containing metal ions and halide ions generated in a phase separation step in which a polymer solution obtained by a polymerization reaction using a homogeneous catalyst containing a metal component mixed with water, the method including an ion exchange treatment step of obtaining treated water having a total content of the metal ions and the halide ions of 10 ppm by weight or less by performing an ion exchange treatment on the wastewater generated by phase separation, and a recycling step of recycling the treated water.SELECTED DRAWING: Figure 1
Inventors:
ITO OSAMU
Application Number:
JP2018024069A
Publication Date:
August 22, 2019
Filing Date:
February 14, 2018
Export Citation:
Assignee:
NIPPON ZEON CO
International Classes:
C02F1/42; B01J47/022; B01J47/026; B01J49/06; B01J49/07; C08C2/00; C08F6/06
Attorney, Agent or Firm:
Eternal patent business corporation