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公开(公告)号：US4460764A
公开(公告)日：1984-07-17
申请号：US516383
申请日：1983-07-21
CPC分类号： C08G65/46
摘要： In the preparation of a high molecular weight polyphenylene ether from a monohydric phenol by an oxidative coupling reaction with oxygen in the presence of a catalyst complex obtained from a metal salt and an organic amine and in the presence of a solvent, and isolation of the metal ion component of the catalyst from the polyphenylene ether solution by means of a complex-forming or chelate-forming compound, the catalyst is removed by a method wherein complex formation and isolation of the metal ion component of the catalyst are carried out in an aqueous medium in the presence of from 0.1 to 5,000 mg of an anionic or non-ionic surfactant.
摘要翻译： 在由金属盐和有机胺获得的催化剂配合物的存在下和在溶剂的存在下，通过与氧的氧化偶联反应从一元酚制备高分子量聚苯醚，并分离金属 通过复合物形成或螯合形成化合物从聚苯醚溶液中除去催化剂的离子组分，通过催化剂的金属离子组分的复合形成和分离在水性介质中进行的方法除去催化剂 在0.1至5,000mg阴离子或非离子表面活性剂的存在下。
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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
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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公开(公告)号：US4696996A
公开(公告)日：1987-09-29
申请号：US797884
申请日：1985-11-14
申请人： Hermann Brandt , Hermann Fischer , Hermann Dreher , Eduard Heil , Juergen Hambrecht , Herbert Naarmann , Adolf Echte , Hermann Gausepohl , Peter Siebel , Johann Swoboda , Gerd Schwoebel , Albert Nikles
发明人： Hermann Brandt , Hermann Fischer , Hermann Dreher , Eduard Heil , Juergen Hambrecht , Herbert Naarmann , Adolf Echte , Hermann Gausepohl , Peter Siebel , Johann Swoboda , Gerd Schwoebel , Albert Nikles
CPC分类号： C08G65/44 , B01J19/1862 , B01J19/1881 , B01J2219/00094 , B01J2219/00103 , B01J2219/0011
摘要： Polyphenylene ethers are prepared from monohydric phenols, which possess alkyl substituents in the two ortho-positions and, if desired, in the meta-position, but not in the para-position, by an oxidative coupling reaction with oxygen at from 15.degree. to 50.degree. C. and under from 1 to 10 bar in the presence of a catalyst complex, of a solvent and, if required, of an activator, by a method in which the conversion of the phenols is carried out in two more reaction zones, in which some or all of the solvent, the catalyst complex and the phenols and, where relevant, the activator is initially taken and is circulated by means of a conveying unit, and about 60-100% of the stoichiometric amount of oxygen required for the oxidative coupling is introduced into the first reaction zone and from 0 to about 40% of the said stoichiometric amount is introduced into the second reaction zone.
摘要翻译： 聚苯醚由单羟基苯酚制得，它们在两个邻位具有烷基取代基，如果需要，在间位，而不是在对位，通过与15至50的氧的氧化偶联反应， 在催化剂配合物存在下，在溶剂和如果需要的情况下，活化剂存在下，在1至10巴下，通过酚的转化在两个更多的反应区中进行，在 其中一些或全部溶剂，催化剂络合物和酚，并且在相关的情况下，活化剂最初被摄取并通过输送单元循环，并且约60-100％的化学计量量的氧化所需的氧 将偶联引入第一反应区，并将0至约40％的所述化学计量量引入第二反应区。
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公开(公告)号：US4482696A
公开(公告)日：1984-11-13
申请号：US465760
申请日：1983-02-11
CPC分类号： C08G65/44 , B01J19/002 , B01J19/2465 , B01J19/26 , B01J2219/00103 , B01J2219/0011 , B01J2219/00263 , Y10S585/951
摘要： A coherent explosive gas phase in a gas/liquid reactor comprising a tubular body which is closed at the top and into which one or more jets of liquid which are fed from a liquid circulation and are directed downward, emerge from one or more nozzles located at the highest point of the reactor, and entrain a gas phase which is to be dispersed, introduce it into the liquid and finally produce complete dispersion of the gas, is avoided by a method wherein, before start-up of the liquid circulation, the inactive reactor is charged with an amount of liquid reactant such that a gas space corresponding to the subsequent gas hold-up of dispersed bubbles under operating conditions remains at the top of the reactor, this gas space is filled with a gas, at a pressure p.sub.1, which is inert under the reaction conditions, and the gaseous reactant is fed to the reactor only when, under the action of the liquid jet or jets, the inert gas has been dispersed into a hold-up of dispersed bubbles so that a coherent gas phase no longer exists.
摘要翻译： 在气/液反应器中的相干爆炸性气相，包括管状主体，该管状体在顶部封闭，并且从液体循环进给并被向下引导的一个或多个液体射流从该管状体中的一个或多个喷嘴出射 反应器的最高点，并且夹带待分散的气相，将其引入液体中并最终产生气体的完全分散，通过其中在液体循环启动之前的非活性的方法避免了 反应器装有一定量的液体反应物，使得在操作条件下与分散气泡的随后气体保持相对应的气体空间保持在反应器的顶部，该气体空间以压力p1填充气体， 其在反应条件下是惰性的，并且气体反应物仅在液体射流或喷射作用下被输送到反应器中时，惰性气体已经分散到分散的气泡的滞留物中，使得coh 气相不再存在。
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