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1. 发明专利

JP2008179633A Method for crystallization for producing bisphenol 审中-公开
标题翻译：用于生产双酚的结晶方法
公开(公告)号：JP2008179633A
公开(公告)日：2008-08-07
申请号：JP2008001117
申请日：2008-01-08
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： MUENNICH CHRISTIAN , BLASCHKE ULRICH , EEK ROB , PREIN MICHAEL , AUDENAERT RAYMOND , TYTGAT GERT
IPC分类号： C07C29/78 , C07C39/16
CPC分类号： C07C37/20 , C07C37/84 , C07C39/16
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a bisphenol having >99.7% purity. SOLUTION: The method for producing a bisphenol having >99.7% purity comprises (a) reacting phenol with acetone in the presence of an acidic catalyst to form a bisphenol-containing product mixture, (b) taking out at least a portion of the bisphenol from the product mixture in a form of a bisphenol/phenol adduct by crystallization, filtration and washing, to provide bisphenol/phenol adduct crystals, and (c) removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having high purity of >99.7%, wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices constituted so that the product mixture is first cooled in a first stage of crystallization to a temperature of 50-70°C in a first crystallization device and a second crystallization device connected in parallel, and subsequently cooled in a second stage of the crystallization to a temperature of 40-50°C in a third crystallization device connected downstream in series to the first and second crystallization devices, and wherein a total residence time of the product mixture in the crystallization is >4 hr. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种生产纯度> 99.7％的双酚的方法。解决方案：制备纯度> 99.7％的双酚的方法包括（a）在酸性催化剂存在下使苯酚与丙酮反应以形成含双酚的产物混合物，（b）取出至少一部分通过结晶，过滤和洗涤从双酚/苯酚加合物形式的产物混合物中提供双酚/酚加合物晶体，和（c）从双酚/苯酚加合物晶体中除去至少一部分苯酚至提供高纯度> 99.7％的双酚，其中结晶包括连续悬浮液结晶，并且在至少三个结晶装置中进行，所述结晶装置构成使得产物混合物首先在结晶的第一阶段被冷却至50-70℃ ℃的第一结晶装置和第二结晶装置并联连接，随后在第二结晶阶段中在40-50℃的温度下在第三结晶装置与第一和第二结晶装置串联连接下游，并且其中产物混合物在结晶中的总停留时间> 4小时。版权所有（C）2008，JPO＆INPIT

2. 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

3. 发明专利

DE102007021935A1 未知
公开(公告)号：DE102007021935A1
公开(公告)日：2008-11-20
申请号：DE102007021935
申请日：2007-05-10
申请人： BAYER MATERIALSCIENCE AG
发明人： BLASCHKE ULRICH , AUDENAERT RAYMOND , GEERS JEROEN , KOCK PHILIP DE , SALEMBIER PAUL , PETEIN DIRK
IPC分类号： C07C37/84 , C07C37/70 , C07C39/16
摘要： Bisphenol A production comprises reacting phenol and acetone in the presence of a sulfonic acid ion exchanger and a sulfur-containing co-catalyst, subjecting product mixture containing bisphenol A-phenol adduct to continuous suspension crystallization in crystallizer(s), separating crystals of bisphenol A-phenol adduct by solid/liquid separation, and removing phenol from crystals of bisphenol A-phenol adduct by distillation and/or desorption. The current consumption of pump(s) is maintained so that current consumption fluctuates by maximum of+- 5%. Bisphenol A production comprises reacting phenol and acetone in the presence of a sulfonic acid ion exchanger and a sulfur-containing co-catalyst to form a product mixture containing bisphenol A-phenol adduct, subjecting product mixture containing bisphenol A-phenol adduct to continuous suspension crystallization in crystallizer(s) to obtain crystals of bisphenol A-phenol adduct, separating crystals of bisphenol A-phenol adduct by solid/liquid separation, and removing phenol from crystals of bisphenol A-phenol adduct by distillation and/or desorption to obtain bisphenol A. The crystallizers comprise heat exchanger(s) for cooling and pump(s) pumping the suspension contained in crystallizer(s) through heat exchanger(s). The current consumption of pump(s) is maintained such that the current consumption fluctuates by a maximum of+- 5%. The speed of pump(s) is increased as the pressure loss across heat exchanger rises.

4. 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.

5. 发明专利

SG144818A1 CRYSTALLIZATION PROCESSES FOR PRODUCING BISPHENOLS 未知
公开(公告)号：SG144818A1
公开(公告)日：2008-08-28
申请号：SG2008001109
申请日：2008-01-02
申请人： BAYER MATERIALSCIENCE AG
发明人： MUENNICH CHRISTIAN DR , BLASCHKE ULRICH DR , EEK ROB DR , PREIN MICHAEL DR , AUDENAERT RAYMOND , TYTGAT GERT
摘要： Crystallization Processes for Producing Bisphenols Processes for producing bisphenols (e.g., bisphenol A (BPA)) having a purity greater than 99.7 % are described, such processes including reacting a phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising a bisphenol; removing at least a portion of the bisphenol from the product mixture in the form of a bisphenol/phenol adduct by crystallization, filtration and washing to provide bisphenol/phenol adduct crystals; and removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having a purity of more than 99.7 %; wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices arranged such that the product mixture is first cooled in a first stage of the crystallization to a temperature of 50 to 70 degree C in a first crystallization device and a second crystallization device connected in parallel, and subsequently cooled in a second stage of the crystallization to a temperature of 40 to 50 degree C in a third crystallization device connected downstream in series to the first and second crystallization devices, and wherein a total dwell time of the product mixture in the crystallization is more than 4 hours.

6. 发明专利

AT514668T 未知
公开(公告)号：AT514668T
公开(公告)日：2011-07-15
申请号：AT08000201
申请日：2008-01-08
申请人： BAYER MATERIALSCIENCE AG
发明人： MUENNICH CHRISTIAN , BLASCHKE ULRICH , EEK ROB , PREIN MICHAEL , AUDENAERT RAYMOND , TYTGAT GERT
IPC分类号： C07C37/20 , C07C37/84
摘要： A method for making Bisphenol A (BPA) with a purity of more than 99.7% by (a) reacting phenol and acetone using an acid catalyst, (b) separating a BPA-phenol adduct by crystallisation and (c) removing phenol from the adduct, in which (b) involves continuous suspension crystallisation with a total dwell time of more than 4 hours in at least 3 crystallisers, by cooling first to 50-70[deg] C in two parallel crystallisers and then to 40-50[deg] C in a third crystalliser connected in series with the first two. A method for the production of Bisphenol A (BPA) with a purity of more than 99.7%, by (a) reacting phenol with acetone in presence of an acid catalyst, (b) separating a BPA-phenol adduct from the product mixture by crystallisation, filtration and washing, and (c) removing the phenol from the adduct, in which stage (b) involves continuous suspension crystallisation in at least three crystallisers connected in such a way that the mixture is first cooled to 50-70[deg] C in two crystallisers in parallel and then cooled to 40-50[deg] C in a third crystalliser in series with the first two, the total residence time of the mixture over all crystallisers being more than 4 hours.

7. 发明专利

DE102007001427A1 Making high-purity Bisphenol A from phenol and acetone, e.g. for polycarbonate production, involves separating the Bisphenol A-phenol adduct by continuous suspension crystallisation 未知
公开(公告)号：DE102007001427A1
公开(公告)日：2008-07-10
申请号：DE102007001427
申请日：2007-01-09
申请人： BAYER MATERIALSCIENCE AG
发明人： MUENNICH CHRISTIAN , BLASCHKE ULRICH , EEK ROB , PREIN MICHAEL , AUDENAERT RAYMOND , TYTGAT GERT
IPC分类号： C07C37/20 , C07C37/84 , C07C39/16
摘要： A method for making Bisphenol A (BPA) with a purity of more than 99.7% by (a) reacting phenol and acetone using an acid catalyst, (b) separating a BPA-phenol adduct by crystallisation and (c) removing phenol from the adduct, in which (b) involves continuous suspension crystallisation with a total dwell time of more than 4 hours in at least 3 crystallisers, by cooling first to 50-70[deg] C in two parallel crystallisers and then to 40-50[deg] C in a third crystalliser connected in series with the first two. A method for the production of Bisphenol A (BPA) with a purity of more than 99.7%, by (a) reacting phenol with acetone in presence of an acid catalyst, (b) separating a BPA-phenol adduct from the product mixture by crystallisation, filtration and washing, and (c) removing the phenol from the adduct, in which stage (b) involves continuous suspension crystallisation in at least three crystallisers connected in such a way that the mixture is first cooled to 50-70[deg] C in two crystallisers in parallel and then cooled to 40-50[deg] C in a third crystalliser in series with the first two, the total residence time of the mixture over all crystallisers being more than 4 hours.

8. 发明专利

ES2367129T3 PROCEDIMIENTO DE CRISTALIZACION PARA LA PREPARACION DE BISFENOL A. 未知
公开(公告)号：ES2367129T3
公开(公告)日：2011-10-28
申请号：ES08000201
申请日：2008-01-08
申请人： BAYER MATERIALSCIENCE AG
发明人： MUENNICH CHRISTIAN , BLASCHKE ULRICH , EEK ROB , PREIN MICHAEL , AUDENAERT RAYMOND , TYTGAT GERT
IPC分类号： C07C37/20 , C07C37/84
摘要： Procedimiento para la preparación de bisfenol A con una pureza de más del 99,7 % en el que a) se hacen reaccionar fenol y acetona en presencia de un catalizador ácido dando una mezcla de productos que contiene bisfenol A y a continuación b) de esta mezcla de productos que contiene bisfenol A se separa un aducto de bisfenol A-fenol mediante cristalización y posterior filtración y lavado, c) el fenol se separa completa o parcialmente de los cristales del aducto de BPA-fenol así obtenidos en el que la cristalización en la etapa b) se realiza en forma de una cristalización en suspensión continua y a este respecto se usan por lo menos tres dispositivos de cristalización que contienen un recipiente de cristalización, un intercambiador de calor y una bomba de circulación que están conectados de forma que la mezcla de productos se enfría inicialmente en dos dispositivos de cristalización conectados en paralelo a una temperatura entre 50 y 70 ºC y a continuación en un tercer dispositivo de cristalización que está conectado detrás en serie a los dos primeros dispositivos de cristalización a una temperatura entre 40 y 50 ºC, en el que el tiempo de permanencia total de la mezcla de productos en la cristalización considerando todos los dispositivos de cristalización asciende a más de 4 h.

9. 发明专利

DE102004032232A1 未知
公开(公告)号：DE102004032232A1
公开(公告)日：2006-01-19
申请号：DE102004032232
申请日：2004-07-02
申请人： BAYER MATERIALSCIENCE AG
发明人： PREIN MICHAEL , EEK ROB , AUDENAERT RAYMOND
IPC分类号： C07C37/20 , C07C37/74 , C07C37/86 , C07C39/16
摘要： A continuous process for the separation of phenol is disclosed. The process includes (a) feeding a stream of material, produced while preparing bisphenol A by reacting phenol with acetone, into a distillation column containing at least 5 theoretical separation stages, b) distilling-off the phenol as a top product and discharging from the column a bottom product containing secondary components, c) continuously introducing a portion of the bottom product into a dwell-time container operating at process parameters sufficient to cause, in the presence of an acidic catalyst, at least partial isomerization of the secondary components to form an isomerized product and d) introducing the isomerized product to the distillation column. The introducing of the bottom product is at a rate that is more than 30% of the rate of feeding of the stream at temperatures greater than 190° C. and hydrodynamic dwell time of at least 120 minutes.

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