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公开(公告)号：EP0829464B1
公开(公告)日：2001-12-12
申请号：EP97306768.9
申请日：1997-09-02
CPC分类号： C07C37/84 , C07C37/685 , C07C37/74 , Y02P20/125 , C07C39/16
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公开(公告)号：EP0682004B1
公开(公告)日：1998-07-29
申请号：EP95302534.3
申请日：1995-04-18
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3.发明公开Method for extending the activity of acidic ion exchange catalysts 失效Verfahren zurVerlängerungderAktivitätsäureIonenaustaucher-Katalysatoren。
公开(公告)号：EP0682004A1
公开(公告)日：1995-11-15
申请号：EP95302534.3
申请日：1995-04-18
摘要： The addition of 3-mercaptopropionic acid or the organic ester thereof to the reaction mixture slows the rate of deactivation of cationic catalyst resins containing mercaptan promoter sites, during preparation of bisphenols by the condensation of a ketone with a phenol.
摘要翻译： 酮与苯酚在缩合物中反应。 在具有有机巯基启动子gps的酸性阳离子交换树脂的存在下进行反应。 和0.01-0.5重量％，基于反应混合物。 的3-巯基丙酸或其有机酯。
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4.发明授权Method of recovering bisphenol-A from preparative process efluent streams 失效一种用于从Ausflusströmen制造过程中回收双酚A的过程。
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5.发明公开Defouling bisphenol-phenol adduct fouled crystallizer coolers 审中-公开Reinigung eines durch双酚苯酚Addukte verschmutztenKristallisationskühlers
公开(公告)号：EP0908440A2
公开(公告)日：1999-04-14
申请号：EP98306297.7
申请日：1998-08-06
摘要： An improvement in the continuous preparation of a bisphenol comprising maintaining the efficiency of the adduct crystallizer by dissolving the adduct adhering to the surface of the crystallizer with phenol containing 5 to 40 weight percent of water and preferably maintaining the Delta-T of the crystallizer at less than about 4°C.
摘要翻译： 通过使苯酚和双酚A的1:1加合物结晶而变得不可接受地污染的冷却和结晶表面通过用含有5-40重量％水的苯酚溶解粘附在表面上的加合物来清洁。 还要求保护的是连续的双酚生产方法，其包括（a）将酮与摩尔过量的苯酚缩合以产生1:1加合物，（b）通过结晶从反应产物中分离出加合物，和（c）维持Delta-T （加工溶液和冷却介质之间的温度差）通过将加合物溶解在酚溶液中而在= 4℃。
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公开(公告)号：EP0829464A3
公开(公告)日：1999-03-17
申请号：EP97306768.9
申请日：1997-09-02
CPC分类号： C07C37/84 , C07C37/685 , C07C37/74 , Y02P20/125 , C07C39/16
摘要： An integrated process for the preparation and recovery of BPA in pure form utilizes a series of steps to crystallize pure BPA of improved color stability and recycle separated impurities to improve overall yields. The principal impurity recycled to the process is o,p-BPA which functions as a color stabilizer in the product and in polycarbonate resins prepared from the BPA.
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公开(公告)号：EP0829464A2
公开(公告)日：1998-03-18
申请号：EP97306768.9
申请日：1997-09-02
CPC分类号： C07C37/84 , C07C37/685 , C07C37/74 , Y02P20/125 , C07C39/16
摘要： An integrated process for the preparation and recovery of BPA in pure form utilizes a series of steps to crystallize pure BPA of improved color stability and recycle separated impurities to improve overall yields. The principal impurity recycled to the process is o,p-BPA which functions as a color stabilizer in the product and in polycarbonate resins prepared from the BPA.
摘要翻译： 用于制备和回收纯的BPA的综合方法采用一系列步骤，使纯BPA结晶，改善颜色稳定性和再循环分离的杂质，以提高总产率。 再循环到该方法中的主要杂质是o，p-BPA，其作为产品中的颜色稳定剂和由BPA制备的聚碳酸酯树脂。
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8.发明公开Method for preparing ion-exchange resin for use as a catalyst in the synthesis of bisphenols 失效一种用于在双酚制造Ionenaustauscherhartzes用作催化剂的方法
公开(公告)号：EP0765685A2
公开(公告)日：1997-04-02
申请号：EP96306229.4
申请日：1996-08-28
CPC分类号： B01J31/10 , B01J2231/347 , C07C37/20 , C07C39/16
摘要： In the preparation of bisphenol-A by condensation of phenol with acetone in the presence of an acidic ion-exchange resin catalyst, pretreatment of the catalyst to render it free of acidic oligomers which are detrimental to the preparation of bisphenol-A entails washing the catalyst resin with deionized water until the washings show a specific conductance of less than 50 micromho/cm at 25°C.
摘要翻译： 在酸性离子交换树脂催化剂的存在下制备的双酚A的苯酚的缩合用丙酮，所述催化剂的预处理以使其不含酸性低聚物是不利的双酚A的制备的需要洗涤催化剂 树脂用去离子水直到洗涤液表现出小于50微姆欧/厘米，在25℃的比电导
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公开(公告)号：EP0310925B1
公开(公告)日：1993-06-16
申请号：EP88115968.5
申请日：1988-09-28
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公开(公告)号：EP0908440A3
公开(公告)日：1999-04-28
申请号：EP98306297.7
申请日：1998-08-06
摘要： An improvement in the continuous preparation of a bisphenol comprising maintaining the efficiency of the adduct crystallizer by dissolving the adduct adhering to the surface of the crystallizer with phenol containing 5 to 40 weight percent of water and preferably maintaining the Delta-T of the crystallizer at less than about 4°C.
摘要翻译： 连续制备双酚的改进包括通过用含有5-40％（重量）水的苯酚溶解附着在结晶器表面上的加合物来保持加合物结晶器的效率，并且优选保持结晶器的ΔT较低 大约4°C。
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