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1. 发明授权

US06960697B2 System and method of producing bisphenol-A (BPA) 失效
标题翻译：生产双酚A（BPA）的方法和制备方法
公开(公告)号：US06960697B2
公开(公告)日：2005-11-01
申请号：US10099227
申请日：2002-03-13
申请人： Drow Lionel O'Young , Shan Tao Hsieh , Vaibhav Kelkar
发明人： Drow Lionel O'Young , Shan Tao Hsieh , Vaibhav Kelkar
IPC分类号： C07C37/20 , C07C39/16
CPC分类号： C07C37/84 , C07C37/20 , C07C39/16
摘要： A system and method for producing bisphenol-A (BPA) is provided. In particular, the present invention provides a system and method of producing bisphenol-A wherein the phase equilibrium behavior of a feed solution to a crystallizer is selectively controlled and adjusted to provide desired results. This provides a powerful tool, whereby certain operating conditions or variables of the bisphenol-A process can be selectively adjusted to generate desired phase equilibrium behavior. In general, bisphenol-A is produced from a reaction of phenol and acetone, forming a product solution including phenol, bisphenol-A, isomers of bisphenol-A, unreacted reactants and by-products. A solvent is provided in the product solution and the amount and composition of solvent in the product solution are selectively controlled to adjust the composition of the product solution fed to a crystallizer such that either crystalline bisphenol-A, or an adduct of bisphenol-A and phenol is crystallized from the product solution. Thus, a solvent is used to selectively control the phase behavior of the system. The solvent is a pseudo component and may be comprised of a single component or may be comprised of a solvent mixture of two or more solvents each exhibiting certain phase behavior in the system.
摘要翻译：提供了一种生产双酚A（BPA）的方法和系统。特别地，本发明提供了生产双酚-A的系统和方法，其中选择性地控制和调节进料溶液到结晶器的相平衡行为以提供期望的结果。这提供了一种强大的工具，由此可以选择性地调节双酚A方法的某些操作条件或变量以产生所需的相平衡行为。通常，由苯酚和丙酮的反应生成双酚A，形成包括苯酚，双酚A，双酚A的异构体，未反应的反应物和副产物的产物溶液。在产品溶液中提供溶剂，并且选择性地控制产物溶液中溶剂的量和组成，以调节进料到结晶器的产物溶液的组成，使得结晶双酚A或双酚A的加合物和苯酚从产物溶液中结晶。因此，使用溶剂来选择性地控制系统的相位行为。溶剂是假成分，并且可以由单一组分组成，或者可以由两种或更多种在系统中表现出某些相行为的溶剂的溶剂混合物组成。

2. 发明授权

US07163582B2 System and method of producing Bisphenol-A (BPA) using direct crystallization of BPA in a single crystallization stage 失效
标题翻译：在单一结晶阶段使用BPA的直接结晶生产双酚A（BPA）的系统和方法
公开(公告)号：US07163582B2
公开(公告)日：2007-01-16
申请号：US10661169
申请日：2003-09-12
申请人： Drow Lionel O'Young , Shan Tao Hsieh , Vaibhav Kelkar
发明人： Drow Lionel O'Young , Shan Tao Hsieh , Vaibhav Kelkar
IPC分类号： C30B7/05
CPC分类号： C07C37/84 , C07C37/20 , C07C39/16
摘要： A system and method are provided for producing Bisphenol-A (BPA) using direct crystallization of BPA in a single crystallization stage. In one embodiment the method comprises reacting Phenol and Acetone in the presence of a catalyst to form a product solution including Bisphenol-A and Phenol; removing a part of the Phenol from the product solution if required, and providing a selective amount of solvent, so as to obtain a product solution with the desired phase equilibrium behavior; and feeding the product solution with a selective composition to a crystallization stage operated at a selected temperature, so as to recover substantially pure Bisphenol-A in crystal form.
摘要翻译：提供了在单一结晶阶段使用BPA的直接结晶生产双酚A（BPA）的系统和方法。在一个实施方案中，该方法包括在催化剂存在下使苯酚和丙酮反应以形成包括双酚A和苯酚的产物溶液; 如果需要，从产品溶液中除去一部分苯酚，并提供选择量的溶剂，以获得具有所需相平衡行为的产物溶液; 并将具有选择性组成的产物溶液进料到在选定温度下操作的结晶阶段，以回收基本上纯的双酚A晶体形式。

3. 发明授权

US4941893A Gas separation by semi-permeable membranes 失效
标题翻译：半透膜分离气体
公开(公告)号：US4941893A
公开(公告)日：1990-07-17
申请号：US409059
申请日：1989-09-19
申请人： Shan-Tao Hsieh , George E. Keller, II
发明人： Shan-Tao Hsieh , George E. Keller, II
IPC分类号： B01D53/22 , B01D69/12 , B01D71/16 , B01D71/68 , C01B3/50 , C01B7/00 , C01B33/029 , C01B33/03 , C01B33/035 , C01B33/04 , C01B33/107 , C30B25/02
CPC分类号： C30B29/06 , B01D53/22 , B01D53/228 , B01D69/12 , C01B3/501 , C01B3/503 , C01B33/029 , C01B33/03 , C01B33/035 , C01B33/043 , C01B33/107 , C01B33/1071 , C01B33/10763 , C01B7/00 , C30B25/02 , C01B2203/0405 , C01B2203/0465
摘要： A method is disclosed for separating gaseous silicon compounds from hydrogen and/or hydracids. Specifically, the method comprises the utilization of semi-permeable membranes for such gaseous separation. Particularly preferred is a composite membrane comprised of a coating separation layer of sulfonated polysulfone and a support layer of polysulfone. Mixtures of hydrogen and silane are particularly suitable for being separated by means of composite membrane separation.
摘要翻译：公开了一种用于从氢和/或氢酸分离气态硅化合物的方法。具体地，该方法包括利用用于这种气体分离的半透膜。特别优选的是由磺化聚砜的涂层分离层和聚砜的载体层组成的复合膜。氢和硅烷的混合物特别适用于通过复合膜分离分离。

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