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1. 发明专利

JP2006335760A Method for producing high-purity bisphenol a 有权
标题翻译：生产高纯度双酚A的方法
公开(公告)号：JP2006335760A
公开(公告)日：2006-12-14
申请号：JP2006155618
申请日：2006-06-05
申请人： Bayer Materialscience Ag , バイエル・マテリアルサイエンス・アクチェンゲゼルシャフトBayer MaterialScience AG
发明人： BLASCHKE ULRICH , WESTERNACHER STEFAN , BRAUN ARNE , AUDENAERT RAYMOND , ZANK JESKO
IPC分类号： C07C37/20 , C07B61/00 , C07C37/74 , C07C37/82 , C07C37/84 , C07C39/16
CPC分类号： C07C39/16 , C07C37/20 , C07C37/84
摘要： PROBLEM TO BE SOLVED: To provide a method for producing high-purity bisphenol A (BPA). SOLUTION: This method for producing the high-purity bisphenol A includes processes (a) to (k) as follows: (a) reacting phenol with acetone in the presence of an acidic ion exchanger and a sulfur-containing cocatalyst, so as to obtain a product mixture; (b) continuously obtaining crystals of a BPA-phenol adduct from the product mixture; (c) separating the adduct obtained in the process (b), so as to obtain a solid phase and a liquid phase; (d) washing the solid phase, so as to obtain a washed solid phase and a second liquid phase; (e) distilling the liquid phase and the second liquid phase, so as to obtain a dehydrated solution; (f) introducing at least 90 wt% of the dehydrated solution into the process (a); (g) adding the phenol to the washed solid phase obtained in the process (d), so as to obtain a homogeneous substance system; (h) continuously obtaining the crystals of the BPA-phenol adduct from the homogeneous substance system; (i) separating the crystals obtained in the process (h), so as to obtain a second solid phase; (j) washing the second solid phase, so as to obtain a washed adduct; and (k) heating the washed adduct, so as to remove the phenol. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：提供一种生产高纯度双酚A（BPA）的方法。解决方案：用于生产高纯度双酚A的方法包括以下方法（a）至（k）：（a）在酸性离子交换剂和含硫助催化剂存在下使苯酚与丙酮反应，因此获得产品混合物; （b）从产物混合物中连续获得BPA-酚加合物的晶体; （c）分离方法（b）中获得的加合物，以获得固相和液相; （d）洗涤固相，以获得洗涤的固相和第二液相; （e）蒸馏液相和第二液相，得到脱水溶液; （f）将至少90重量％的脱水溶液引入到方法（a）中; （g）在方法（d）中得到的洗涤固相中加入苯酚，得到均匀物质体系; （h）从均匀物质体系连续得到BPA-苯酚加成物的晶体; （i）分离方法（h）中得到的晶体，得到第二固相; （j）洗涤第二固相，以获得洗涤的加合物; 和（k）加热洗涤的加合物，以除去苯酚。版权所有（C）2007，JPO＆INPIT

2. 发明专利

ES2330874T3 PROCEDIMIENTO PARA LA PREPARACION DE 2,2-BIS(4-HIDROXIFENIL)PROPANO (BISFENOL A). 未知
公开(公告)号：ES2330874T3
公开(公告)日：2009-12-16
申请号：ES06010611
申请日：2006-05-23
申请人： BAYER MATERIALSCIENCE AG
发明人： BLASCHKE ULRICH DR , WESTERNACHER STEFAN DR , BRAUN ARNE , AUDENAERT RAYMOND DR , ZANK JESKO DR
IPC分类号： C07C37/20 , C07C37/84 , C07C39/16
摘要： Procedimiento para la preparación de bisfenol A que comprende los siguientes pasos: a) reacción de fenol y acetona en presencia de un intercambiador iónico de ácido sulfónico y de un cocatalizador que contiene azufre para dar una mezcla de productos que contiene bisfenol A b) cristalización en suspensión continua de un aducto de bisfenol A-fenol de la mezcla de productos obtenida en el paso (a) que contiene del 0,1 al 6% en peso, preferiblemente del 0,5 al 2% en peso, de agua en al menos un cristalizador con respectivamente al menos un intercambiador de calor c) separación de los cristales del aducto de bisfenol A-fenol obtenidos según el paso (b) mediante separación sólido-líquido, especialmente mediante filtración, y lavado de la fase sólida, especialmente de la torta de filtración, con solución fenólica, así como posterior separación por destilación del agua de las fases líquidas, especialmente de los filtrados, de la separación sólido-líquido y/o del lavado a un contenido de como máximo el 0,3% en peso de agua y recirculación en al menos el 90% en peso de la solución así deshidratada al paso (a) (corriente parcial A), presentando la solución recirculada un contenido del 5 al 15% en peso, preferiblemente del 6,5 al 10% en peso, de p,p''''-BPA y del 3 al 12% en peso de isómeros, y la corriente parcial B restante del 0,5 al 10% en peso se descarga. d) preparación de una solución homogénea que contiene del 15 al 35% en peso, preferiblemente del 20 al 30% en peso, de bisfenol A, del 0,05 al 2% en peso, preferiblemente del 0,1 al 1,1% en peso, de isómeros y del 0,1 al 10% en peso de agua, en fenol de la fase sólida obtenida en el paso (c), especialmente de la torta de filtración, con la adición de una solución fenólica y agua o una solución fenólica que contiene agua e) cristalización en suspensión continua de un aducto de bisfenol A-fenol de la solución obtenida en el paso (d) en al menos un cristalizador con respectivamente al menos un intercambiador de calor f) separación de los cristales del aducto de bisfenol A-fenol obtenidos según el paso (e) mediante separación sólido-líquido, especialmente mediante filtración, y lavado de la fase sólida, especialmente de la torta de filtración, con solución fenólica g) eliminación del fenol del aducto de BPA-fenol obtenido según el paso (f) mediante calentamiento a temperaturas de al menos 120ºC.

3. 发明专利

DE502006004835D1 未知
公开(公告)号：DE502006004835D1
公开(公告)日：2009-10-29
申请号：DE502006004835
申请日：2006-05-23
申请人： BAYER MATERIALSCIENCE AG
发明人： BLASCHKE ULRICH DR , WESTERNACHER STEFAN DR , BRAUN ARNE , AUDENAERT RAYMOND DR , ZANK JESKO DR
IPC分类号： C07C37/20 , C07C37/84 , C07C39/16
摘要： Preparation of bisphenol A comprises conversion of phenol and acetone to a product mixture containing bisphenol A; suspension crystallization of a bisphenol A-phenol-adduct; separation of bisphenol A-phenol-adduct crystals and washing the solid material phase and subsequent distillative separation of water from liquid phase; production of a homogeneous solution containing bisphenol A, isomer and water in phenol; suspension crystallization of bisphenol A-phenol-adduct; separation of the bisphenol A-phenol-adduct crystal; and separation of phenol from boronophenyl alanine-phenol-adduct. Preparation of bisphenol A comprises: (A) conversion of phenol and acetone, in the presence of sulfonic acid ion exchanger and a sulfur containing co-catalyst, to a product mixture containing bisphenol A; (B) continuous suspension crystallization of a bisphenol A-phenol-adduct from the product mixture, which contains 0.1-6 (prefers 0.5-2) wt.% water in at least a crystallizer with at least a heat exchanger; (C) separation of the bisphenol A-phenol-adduct crystals from the above step by solid-liquid-separation, preferably by filtration, and washing of the solid material phase (preferably filter cake) with phenolic solution and subsequent distillative separation of water from liquid phase (preferably from filtrate), the solid-liquid-separation and/or washing with up to 0.3 wt.% of water and reduction of the drained solution to at least 90 wt.% in the first step, where the reduced solution contains 5-15 (preferably 6.5-10) wt.% of p,p'-boronophenyl alanine (BPA) and 3-12 wt.% of an isomer; (D) production of a homogeneous solution containing 15-35 (preferably 20-30) wt.% of bisphenol A, 0.05-2 (preferably 0.1-1.1) wt.% of isomer and 0.1-10 wt.% of water in phenol from solid material phase obtained from the above step, preferably from filter cake, under the addition of a phenolic solution; (E) continuous suspension crystallization of a bisphenol A-phenol-adduct from the solution obtained from the above in at least the crystallizer; (F) separation of the bisphenol A-phenol-adduct crystal of the above step by solid-liquid-separation, preferably by filtration, and washing of the solid material phase, preferably filter cake, with phenolic solution; and (G) separation of phenol from BPA-phenol-adduct obtained from the above step by heating at 120[deg]C.

4. 发明专利

DE102007062422A1 未知
公开(公告)号：DE102007062422A1
公开(公告)日：2009-06-25
申请号：DE102007062422
申请日：2007-12-20
申请人： BAYER MATERIALSCIENCE AG
发明人： MAROLT THOMAS , BERGMANN DIRK , TOUMI ABDELAZIZ , BRAUN ARNE
IPC分类号： F28F27/00 , B01D9/00 , C07C37/84 , C07C39/16
摘要： A process and a system for regulating a continuous crystallization process which can be used especially for preparation of bisphenol A comprises a heat exchanger connected in a circuit to a crystallization apparatus. A heat exchange performance of the heat exchanger to cool an exit stream of the crystallization apparatus is established as a function of a feed stream supplied, in order to deliver by regulation an exit temperature of the exit stream. The heat exchange performance is calculated, and the calculated heat exchange performance is established in the heat exchanger with a time delay. The time delay prevents large temperature differences in the heat exchanger, so as to prevent fouling in the heat exchanger. With improved regulation quality, this leads to fewer production shutdowns and hence to improved productivity.

5. 发明专利

SG127857A1 Process for the preparation of high-purity bisphenol a 未知
公开(公告)号：SG127857A1
公开(公告)日：2006-12-29
申请号：SG200603736
申请日：2006-06-01
申请人： BAYER MATERIALSCIENCE AG
发明人： BLASCHKE ULRICH , WESTERNACHER STEFAN , BRAUN ARNE , AUDENAERT RAYMOND , ZANK JESKO
摘要： A process for the preparation of high purity bisphenol A is disclosed. The multi-step process entails a) reacting phenol with acetone in the presence of an acidic ion exchanger and a sulfur-containing co-catalyst to give a product mixture that includes bisphenol A and phenol; b) continuously obtaining from the product mixture crystals of bisphenol A-phenol adduct by suspension crystallization, c) separating the adduct obtained in step (b) by solid- liquid separation to obtain a solid phase and a liquid phase d) washing of the solid phase with a solution containing phenol to obtain washed solid phase and a second liquid phase, e) distilling the liquid phase and said second liquid phase to obtain dewatered solution containing 5 to 15 wt.-% p, p-BPA, 3 to 12 wt. -% isomers of BPA and less than 0.3 wt.-% water, f) introducing of at least 90 wt.% by weight of the dewatered solution into step (a), g) adding phenol to the washed solid phase obtained in step d) to obtain a homogeneous material system that contains pp' - BPA, isomers of BPA and water h) continuously obtaining from the homogeneous material system crystals of bisphenol A-phenol adduct by suspension crystallization; i) separating the crystals obtained in step (h) by solid-liquid separation to obtain a second solid phase, j) washing the second solid phase with a solution that contains phenol to obtain a washed adduct; and k) heating the washed adduct to remove phenol.

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