Method for recovery of solvents from the production of poly(phenylene in the solvent/non-solvent system

摘要

the invention relates to the regeneration of solvent production of poly (phenylene ether) in the solvent / nierozpuszczalnik in which solvent is toluene and methanol or ethanol nierozpuszczalnikiem by alcohol extraction, water and separation rafinaru containing toluene and then separated from raffinate and extract solvents by distillation.the way is that by distillation with water extract alcohol removed ions, copper (ii) by introducing him to the sorbent, which is jonit containing group aminodioctanowe. liquid exhausted after distillation is used as ekstrahent process separation solvents.