专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

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

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.

3. 发明专利

DE102006024518A1 未知
公开(公告)号：DE102006024518A1
公开(公告)日：2007-11-29
申请号：DE102006024518
申请日：2006-05-23
申请人： BAYER MATERIALSCIENCE AG
发明人： BULAN ANDREAS , WEBER RAINER , ZANK JESKO , EBLE AXEL , WERNER KNUD
IPC分类号： C01B7/04
摘要： Processes comprising: (a) providing an initial gas mixture comprising chlorine, water, hydrogen chloride and oxygen; (b) cooling the initial gas mixture to form condensed hydrochloric acid and an intermediate chlorine-containing gas mixture; (c) contacting the intermediate gas mixture with a water-containing phase under a set of conditions selected from a pressure, a temperature and combinations thereof to form a chlorine hydrate-containing phase and a remaining gas mixture; (d) separating the chlorine hydrate-containing phase from the remaining gas mixture; (e) subjecting the chlorine hydrate-containing phase to a set of conditions selected from heat, pressure relief and combinations thereof to release chlorine and form a residual chlorine hydrate/water-containing phase; and (f) separating the released chlorine from the residual chlorine hydrate/water-containing phase.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式