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1. 发明授权

US4654418A Continuous removal of the catalyst from polyphenylene ethers 失效
标题翻译：从聚苯醚连续除去催化剂
公开(公告)号：US4654418A
公开(公告)日：1987-03-31
申请号：US627984
申请日：1984-07-05
申请人： Rosemarie Berger , Hermann Dreher , Juergen Hambrecht , Eduard Heil , Rudi W. Reffert , Johann Swoboda , Adolf Echte , Peter Siebel
发明人： Rosemarie Berger , Hermann Dreher , Juergen Hambrecht , Eduard Heil , Rudi W. Reffert , Johann Swoboda , Adolf Echte , Peter Siebel
IPC分类号： C08G65/46 , C08G65/42
CPC分类号： C08G65/46
摘要： 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.degree. to 50.degree. 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.
摘要翻译：在从一元酚制备高分子量聚苯醚时除去催化剂，该二元酚在两个邻位进行烷基取代，而不是在对位，在间位可以是或不是烷基取代的，在由铜盐和有机胺获得的催化剂配合物的存在下，在15〜50℃下，与氧气进行氧化偶合反应，每份由1〜20份重量的溶剂单体苯酚的重量，并且在存在或不存在活化剂的情况下，在存在或不存在复合物形成或螯合形成化合物的情况下，在聚苯醚溶液中除去催化剂的金属组分减少和稳定物质和辅助剂，用于加速相间反应和相分离，方法是连续除去铜催化剂的方法是在一个或多个混合沉淀器以有机相与水相的相体积比为1:0.1至1:1.0，优选1:0.4至1:0.6。

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