公开(公告)号：DE3217564A1

公开(公告)日：1983-11-17

申请号：DE3217564

申请日：1982-05-11

Applicant: BASF AG

Inventor： REFFERT RUDI WILHELM DIPL ING ,  HAMBRECHT JUERGEN DIPL CHEM DR ,  NAARMANN HERBERT DIPL CHEM DR ,  KANIG GERHARD PROF DIPL CHEM D ,  ROTTLER RUDOLF DIPL CHEM DR

IPC: C08G65/46 ,  C08F6/02

Abstract: The invention relates to a process for the removal of the catalyst in the preparation of high-molecular-weight polyphenylene ethers from monohydric phenols by oxidative coupling reaction with oxygen in the presence of a catalyst complex comprising a metal salt and an organic amine in the presence of a solvent, and removal of the metal ion component of the catalyst from the polyphenylene ether solution, the removal of the metal ion component of the catalyst being carried out by means of high-polymeric, crosslinked cation exchanger resins, which may also be fibrous, characterised in that the cation exchanger is fibrous. The removal of the metal ion component is expediently carried out from a polyphenylene ether solution containing less than or equal to 100 mg/kg of catalyst metal ions per mg/kg of catalyst metal ions.