公开(公告)号：DE2230226A1

公开(公告)日：1974-01-10

申请号：DE2230226

申请日：1972-06-21

Applicant: BASF AG

Inventor： SUTER HUBERT DR ,  BERGER ROSEMARIE DIPL ING ,  BIPP HANSJOERG DR ,  BUERGER GERT DR ,  HAUPTMANN KURT ,  KRATZER OTTO DR ,  REIMER WILLI

IPC: C07C69/003 ,  C02F1/26 ,  C02F9/00 ,  C07C69/34

公开(公告)号：DE3324338A1

公开(公告)日：1985-01-17

申请号：DE3324338

申请日：1983-07-06

Applicant: BASF AG

Inventor： BERGER ROSEMARIE DIPL ING ,  DREHER HERMANN DR ,  REFFERT RUDI WILHELM DIPL ING ,  HAMBRECHT JUERGEN DR ,  HEIL EDUARD DIPL ING ,  SWOBODA JOHANN DR ,  ECHTE ADOLF DR ,  SIEBEL HANS-PETER DR

IPC: C08G65/46 ,  C08G65/44

Abstract: The catalyst is removed in the preparation of high molecular weight polyphenylene ethers from monohydric phenols, which are alkyl-substituted at the two ortho-positions but not at the para-position and may or may not be alkyl-substituted at the meta-position, by an oxidative coupling reaction with oxygen at from 15 DEG to 50 DEG C. in the presence of a catalyst complex obtained from a copper salt and an organic amine, in the presence of from 1 to 20 parts by weight of a solvent per part by weight of the monomeric phenol, and in the presence or absence of an activator, and removal of the metal component of the catalyst from the polyphenylene ether solution with a complex-forming or chelate-forming compound in aqueous solution, in the presence or absence of reducing and stabilizing substances and assistants for accelerating the interphase reactions and for phase separation, by a method in which the continuous removal of the copper catalyst is carried out in one or more mixer-settler stages at a phase volume ratio of the organic phase to the aqueous phase of from 1:0.1 to 1:1.0, preferably from 1:0.4 to 1:0.6.