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. 发明申请

WO0194457A3 SOLVENT-BASED RECOVERY AND RECYCLE OF POLYAMIDE MATERIAL 审中-公开
标题翻译：基于溶剂的聚酰胺材料的回收和回收
公开(公告)号：WO0194457A3
公开(公告)日：2002-05-02
申请号：PCT/CA0100826
申请日：2001-06-07
申请人： DU PONT CANADA
发明人： MCKINNON MICHAEL STEPHEN
IPC分类号： B01D39/20 , B01D9/02 , C08G69/00 , C08G69/04 , C08J11/08 , C08J11/24
CPC分类号： C08J11/24 , B29B2017/0293 , B29K2077/00 , C08G69/04 , C08J2377/00 , Y02W30/622 , Y02W30/706
摘要： A process is disclosed for recovering polyamide material from post-industrial and post-consumer products containing the polyamide material and insoluble materials. The process includes the steps of: (a) contacting the post-industrial and post-consumer products with a suitable solvent in a reactor; (b) dissolving and partially depolymerizing the polyamide material in the solvent to form a solution by operating the reactor at a predetermined temperature and pressure and for a time sufficient to decrease the average molecular weight of the depolymerized polyamide to less than 90% of the initial molecular weight; (c) separating the insoluble material from the solution; and (d) recovering the depolymerized polyamide from the separated solution. The process may also include the step of repolymerizing the depolymerized polyamide.
摘要翻译：公开了用于从包含聚酰胺材料和不溶性材料的后工业和消费后产品中回收聚酰胺材料的方法。该方法包括以下步骤：（a）使后工业和消费后产品与反应器中合适的溶剂接触; （b）将聚酰胺材料溶解并部分地解聚在溶剂中以通过在预定的温度和压力下操作反应器并使其足以将解聚的聚酰胺的平均分子量降低到初始的90％的时间来形成溶液分子量（c）从溶液中分离不溶物; 和（d）从分离的溶液中回收解聚的聚酰胺。该方法还可以包括使解聚的聚酰胺重新聚合的步骤。

2. 发明专利

CA2409837A1 SOLVENT-BASED RECOVERY AND RECYCLE OF POLYAMIDE MATERIAL 未知
公开(公告)号：CA2409837A1
公开(公告)日：2001-12-13
申请号：CA2409837
申请日：2001-06-07
申请人： DU PONT CANADA
发明人： MCKINNON MICHAEL STEPHEN
IPC分类号： B01D39/20 , B01D9/02 , C08G69/00 , C08G69/04 , C08J11/08 , C08J11/24 , C08L77/00
摘要： A process is disclosed for recovering polyamide material from post-industrial and post-consumer products containing the polyamide material and insoluble materials. The process includes the steps of: (a) contacting the post-industrial and post-consumer products with a suitable solvent in a reactor; (b) dissolving and partially depolymerizing the polyamide material in the solvent to form a solution by operating the reactor at a predetermined temperature and pressure and for a time sufficient to decrease the average molecular weight of the depolymerized polyamide to less than 90% of the initial molecular weight; (c) separating the insoluble material from the solution; and (d) recovering the depolymerized polyamide from the separated solution. The process may also include the step of repolymerizing the depolymerized polyamide.

3. 发明公开

EP2797905A4 PROCESS FOR THE PRODUCTION OF FURFURAL 审中-公开
标题翻译：制备镰刀菌的过程
公开(公告)号：EP2797905A4
公开(公告)日：2015-07-08
申请号：EP12861625
申请日：2012-12-28
申请人： DU PONT
发明人： CORBIN DAVID RICHARD , FAGAN PAUL JOSEPH , FERGUSSON STUART B , HUTCHENSON KEITH W , MCKINNON MICHAEL STEPHEN , OZER RONNIE , RAJAGOPALAN BHUMA , SENGUPTA SOURAV KUMAR , TILL ERIC J
IPC分类号： C07D307/38 , B01J27/053 , B01J29/06
CPC分类号： C07D307/50 , C07D307/48 , Y02P20/127

4. 发明专利

AU2012362300A1 Process for the production of furfural 未知
公开(公告)号：AU2012362300A1
公开(公告)日：2014-06-26
申请号：AU2012362300
申请日：2012-12-28
申请人： DU PONT
发明人： CORBIN DAVID RICHARD , FAGAN PAUL JOSEPH , FERGUSSON STUART B , HUTCHENSON KEITH W , MCKINNON MICHAEL STEPHEN , OZER RONNIE , RAJAGOPALAN BHUMA , SENGUPTA SOURAV KUMAR , TILL ERIC J
IPC分类号： C07D307/38 , B01J27/053 , B01J29/06
摘要： Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.

5. 发明专利

CA2859898A1 PROCESS FOR THE PRODUCTION OF FURFURAL 未知
公开(公告)号：CA2859898A1
公开(公告)日：2013-07-04
申请号：CA2859898
申请日：2012-12-28
申请人： DU PONT
发明人： CORBIN DAVID RICHARD , FAGAN PAUL JOSEPH , FERGUSSON STUART B , HUTCHENSON KEITH W , MCKINNON MICHAEL STEPHEN , OZER RONNIE , RAJAGOPALAN BHUMA , SENGUPTA SOURAV KUMAR , TILL ERIC J
IPC分类号： C07D307/38 , B01J27/053 , B01J29/06
摘要： Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.

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