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1. 发明授权

US5785822A Process for separating difluoromethane 失效
标题翻译：二氟甲烷分离方法
公开(公告)号：US5785822A
公开(公告)日：1998-07-28
申请号：US652891
申请日：1996-05-23
申请人： Gustavo Cerri , Kin Ching Kong , Charles Francis Swain , Rajat Subhra Basu
发明人： Gustavo Cerri , Kin Ching Kong , Charles Francis Swain , Rajat Subhra Basu
IPC分类号： C07C17/20 , C07C17/23 , C07C17/383 , C07C17/386 , B01D3/34
CPC分类号： C07C17/383 , C07C17/206 , C07C17/23 , C07C17/386
摘要： The present invention provides a method for separating dichlorodifluoromethane from difluoromethane. More specifically, a process is provided for separating dichlorodifluoromethane and difluoromethane using azeotropic distillation.
摘要翻译：本发明提供了从二氟甲烷中分离二氯二氟甲烷的方法。更具体地，提供了使用共沸蒸馏分离二氯二氟甲烷和二氟甲烷的方法。

2. 发明授权

US5800682A Process for the production of difluoromethane 失效
标题翻译：二氟甲烷生产工艺
公开(公告)号：US5800682A
公开(公告)日：1998-09-01
申请号：US731038
申请日：1996-10-08
申请人： Gustavo Cerri , Kin Ching Kong
发明人： Gustavo Cerri , Kin Ching Kong
IPC分类号： C07C17/20 , C07C17/23 , C07C17/383 , B01D3/00
CPC分类号： C07C17/206 , C07C17/23 , C07C17/383 , Y02P20/582 , Y10S203/20
摘要： A liquid and vapor phase processes for the production of difluoromethane in which the risk of exposure to, and equipment fouling from, chlorofluoromethane is reduced. This reduction is accomplished from removing a sidestream containing monochloromonofluoromethane from a fluorination process distillation column.
摘要翻译：用于生产二氯甲烷的液相和气相方法，其中降低了暴露于氯氟甲烷的污染风险和设备污染的风险。通过从氟化处理蒸馏塔除去含有一氯一氟甲烷的侧流来实现该还原。

3. 发明授权

US6099694A Azeotrope-like compositions of difluoromethane and chlorine 失效
标题翻译：二氟甲烷和氯类共沸组合物
公开(公告)号：US6099694A
公开(公告)日：2000-08-08
申请号：US46095
申请日：1998-03-23
申请人： Hang Thanh Pham , Rajiv R. Singh , Addison M. Smith , David P. Wilson , Raymond Hilton Percival Thomas , Gustavo Cerri
发明人： Hang Thanh Pham , Rajiv R. Singh , Addison M. Smith , David P. Wilson , Raymond Hilton Percival Thomas , Gustavo Cerri
IPC分类号： C01B7/01 , C07C19/08 , B01D3/36 , B01D3/42 , C07C17/386 , C07C19/03
CPC分类号： C01B7/01 , C07C19/08
摘要： The invention relates to an improvement in a process in which chlorine and difluoromethane are present in a distillation column, for example, a fluorination reaction. By controlling the chlorine feed such that the concentration of chlorine relative to difluoromethane in the distillation column is maintained below about 22 weight percent (the flammability threshold for chlorine in a mixture of difluoromethane and chlorine), formation of a flammable difluoromethane/chlorine mixture may be minimized or avoided. The invention is particularly useful in a process for the preparation of difluoromethane wherein at least one distillation column separates difluoromethane from unreacted starting materials such as methylene chloride, hydrogen fluoride and monochloromonofluoromethane.
摘要翻译：本发明涉及在蒸馏塔中存在氯和二氟甲烷的方法的改进，例如氟化反应。通过控制氯进料使得相对于蒸馏塔中的二氟甲烷的氯浓度保持在约22重量％以下（二氟甲烷和氯的混合物中的氯的可燃性阈值），可燃二氟甲烷/氯混合物的形成可以是最小化或避免。本发明特别可用于制备二氟甲烷的方法，其中至少一个蒸馏塔将二氟甲烷与未反应的起始原料如二氯甲烷，氟化氢和一氯一氟甲烷分离。

4. 发明授权

US09255046B2 Manufacturing process for HFO-1234ze 有权
标题翻译： HFO-1234ze制造工艺
公开(公告)号：US09255046B2
公开(公告)日：2016-02-09
申请号：US12125045
申请日：2008-05-21
申请人： Stephen A. Cottrell , Hsueh Sung Tung , Haiyou Wang , Yuon Chiu , Gustavo Cerri
发明人： Stephen A. Cottrell , Hsueh Sung Tung , Haiyou Wang , Yuon Chiu , Gustavo Cerri
IPC分类号： C07C17/00 , C07C19/08 , C07C21/18 , C07C23/00 , C07C25/13 , C07C17/25 , C07C17/358
CPC分类号： C07C17/25 , C07C17/358 , C07C21/18
摘要： Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.
摘要翻译：公开了形成HFO-1234ze的方法，以及用于形成包含HFO-1234ze的组合物的方法，通过（a）优选通过脱氟化氢转化五氟丙烷（HFC-245），优选1,1,1,3,3-五氟丙烷（HFC -245fa），优选通过与苛性碱溶液接触，加入到包含顺-HFO-1234ze和反-HFO-1234ze的反应产物中; 并且（b）使至少一部分，优选基本上部分，在某些实施方案中使基本上所有的所述反应产物与至少一种异构化催化剂接触，以将至少一部分，优选至少大部分的顺-HFO- 1234ze在所述反应产物中以反式HFO-1234ze。

5. 发明申请

US20090234165A1 PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS 有权
标题翻译：氟化烯烃的制备方法
公开(公告)号：US20090234165A1
公开(公告)日：2009-09-17
申请号：US12402372
申请日：2009-03-11
申请人： Yuon Chiu , Stephen A. Cottrell , Hsueh Sung Tung , Haluk Kopkalli , Gustavo Cerri
发明人： Yuon Chiu , Stephen A. Cottrell , Hsueh Sung Tung , Haluk Kopkalli , Gustavo Cerri
IPC分类号： C07C21/18 , B01J19/00
CPC分类号： C07C17/25 , B01J7/00 , B01J19/0046 , B01J19/14 , B01J2219/00452 , B01J2219/0059 , B01J2219/00594 , B01J2219/0072 , B01J2219/00759 , C07C17/23 , C07C17/354 , C07C17/38 , C07C21/18 , C07C19/08
摘要： A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3 -pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
摘要翻译：使用单组四个单元操作制备1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯的方法，单元操作是（1）将包含六氟丙烯的原料氢化和任选的再循环的1,1,1,2,3-五氟丙烯; （2）所需中间体氢氟烷烃如1,1,1,2,3,3-六氟丙烷和/或1,1,1,2,3-五氟丙烷的分离; （3）中间体氢氟烷烃的脱氟化氢以产生所需的1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯，然后进行另一次分离以分离所需产物，并且任选地再循环的1,1,1,2,3-五氟丙烯。

6. 发明授权

US6166275A Fluorination process 有权
标题翻译：氟化工艺
公开(公告)号：US6166275A
公开(公告)日：2000-12-26
申请号：US398745
申请日：1999-09-17
申请人： Gustavo Cerri , Maurice William Hunt , David William Keeler , Frank Peter Young
发明人： Gustavo Cerri , Maurice William Hunt , David William Keeler , Frank Peter Young
IPC分类号： C07C17/20 , C07C17/383 , C07C19/08 , C07C17/08
CPC分类号： C07C17/383 , C07C17/206 , Y02P20/582 , C07C19/08
摘要： A liquid phase fluorination process for producing difluoromethane without corrosion is provided. In the process of this invention, methylene chloride and hydrogen fluoride are reacted in a reactor made of fluorinated polymer to produce a reaction product while a vaporized and superheated recycle stream of process reactants is fed into the reactor.
摘要翻译：提供了不腐蚀生产二氟甲烷的液相氟化方法。在本发明的方法中，二氯甲烷和氟化氢在由氟化聚合物制成的反应器中反应以产生反应产物，同时将进料反应物的蒸发和过热的再循环料流进料到反应器中。

7. 发明授权

US5073663A Increasing the level of 2-methyl-2-butene in isoamylene 失效
标题翻译：提高了亚甲基2-甲基-2-丁烯的含量
公开(公告)号：US5073663A
公开(公告)日：1991-12-17
申请号：US472844
申请日：1990-01-31
申请人： Gustavo Cerri , Robert C. Michaelson
发明人： Gustavo Cerri , Robert C. Michaelson
IPC分类号： B01J31/08 , B01J21/16 , C07B61/00 , C07C5/25 , C07C7/04 , C07C7/148 , C07C11/10
CPC分类号： C07C7/14875 , Y10S203/20
摘要： A method for increasing the ratio of 2-methyl-2-butene (2MB2) to 2-methyl-1-butene (2MB1) in isoamylenes involves fractionating a feedstream containing tertiary amyl methyl ether (TAME) and isoamylenes including 2MB2 and 2MB1 in a ratio of about 2:1 to effect a separation between an overhead hydrocarbon fraction of isoamylenes including 2MB2 and 2MB1 in a ratio of about 1:1, a bottoms fraction including TAME, and a sidestream hydrocarbon fraction consisting essentially of isoamylenes including 2MB2 and 2MB1 in a ratio of about 6 to 12:1, recovering the sidestream hydrocarbon fraction, and recycling the overhead hydrocarbon fraction of isoamylenes to form a mixture which is subsequently reacted to form the feedstream. Prior to fractionation, the feedstream is formed by passing isoamylene, and optionally TAME, in a vapor phase over an ether cracking catalyst which isomerizes isoamylene and converts 2MB1 to 2MB2, i.e., the feedstream for fractionating, which contains 2MB2 and 2MB1 in a ratio of 2 to 5:1. A method for converting 2-methyl-1-butene to 2-methyl-2-butene which may be used to form the feedstream for fractionating involves providing a hydrocarbon stream comprising isoamylenes including 2MB1 and 2MB2 in a ratio of within the range of 1:1 to 5, adding about TAME to the isoamylenes to form a mixture which is passed in the liquid phase at a temperature and a LHSV which favors isomerization over an acidic ion exchange resin catalyst to produce a reaction product including 2MB1, 2MB2 in a ratio of 1:6 to 12, and TAME.
摘要翻译：在异戊烯中增加2-甲基-2-丁烯（2MB2）与2-甲基-1-丁烯（2MB1）的比例的方法包括在含有叔戊基甲基醚（TAME）和包含2MB2和2MB1的异戊烯的进料流中比例为约2:1，以使比例约为1:1的异戊二烯的塔顶烃馏分与包含TAME的底部馏分和基本上由2MB2和2MB1组成的异戊烯组成的侧流烃馏分约6至12：1的比例，回收侧流烃馏分，以及再循环异戊烯的塔顶烃馏分以形成随后反应形成进料流的混合物。在分馏之前，通过使异戊烯和任选的TAME通过使异戊烯异构化的醚裂化催化剂将异戊烯和任选的TAME通过异丙烯和任选的TAME形成，并将2MB1转化为2MB2，即用于分馏的原料流，其含有2MB2和2MB1， 2到5：1。可用于形成用于分馏的原料流的2-甲基-1-丁烯至2-甲基-2-丁烯的方法包括提供包含2MB1和2MB2的异戊烯的烃流，其比例范围为1： 1至5，向异戊烯加入约TAME以形成在温度下通过液相的混合物，并且在酸性离子交换树脂催化剂上有利于异构化的LHSV以产生包含2MB1,2MB2的反应产物，其比例为 1：6到12，和TAME。

8. 发明授权

US08013194B2 Process for the manufacture of fluorinated olefins 有权
标题翻译：制造氟化烯烃的方法
公开(公告)号：US08013194B2
公开(公告)日：2011-09-06
申请号：US12402372
申请日：2009-03-11
申请人： Yuon Chiu , Stephen A. Cottrell , Hsueh Sung Tung , Haluk Kopkalli , Gustavo Cerri
发明人： Yuon Chiu , Stephen A. Cottrell , Hsueh Sung Tung , Haluk Kopkalli , Gustavo Cerri
IPC分类号： C07C17/00
CPC分类号： C07C17/25 , B01J7/00 , B01J19/0046 , B01J19/14 , B01J2219/00452 , B01J2219/0059 , B01J2219/00594 , B01J2219/0072 , B01J2219/00759 , C07C17/23 , C07C17/354 , C07C17/38 , C07C21/18 , C07C19/08
摘要： A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
摘要翻译：使用单组四个单元操作制备1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯的方法，单元操作是（1）将包含六氟丙烯的原料氢化和任选的再循环的1,1,1,2,3-五氟丙烯; （2）所需的中间体氢氟烷烃的分离，例如1,1,1,2,3,3-六氟丙烷和/或1,1,1,2,3-五氟丙烷; （3）中间体氢氟烷烃的脱氟化氢以产生所需的1,1,1,2-四氟丙烯和/或1,1,1,2,3-五氟丙烯，然后进行另一次分离以分离所需产物，并且任选地再循环的1,1,1,2,3-五氟丙烯。

9. 发明授权

US07638660B2 Integrated HFC trans-1234ze manufacture process 有权
标题翻译：集成HFC反式1234ze制造工艺
公开(公告)号：US07638660B2
公开(公告)日：2009-12-29
申请号：US12348538
申请日：2009-01-05
申请人： Haiyou Wang , Hsueh Sung Tung , Yuon Chiu , Gustavo Cerri , Stephen A. Cottrell
发明人： Haiyou Wang , Hsueh Sung Tung , Yuon Chiu , Gustavo Cerri , Stephen A. Cottrell
IPC分类号： C07C17/00
CPC分类号： C01B7/195 , C01B7/191 , C07C17/25 , C07C17/358 , C07C17/383 , C07C21/18 , Y02P20/125
摘要： An integrated process for the manufacture of HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze) by first catalytically dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and hydrogen fluoride. Then optionally recovering hydrogen fluoride, catalytically isomerizing cis-1234ze into trans-1234ze, and recovering trans-1,3,3,3-tetrafluoropropene.
摘要翻译：通过首先催化脱氟化氢化1,1,1,3,3-五氟丙烷以制备HFO反式-1,3,3,3-四氟丙烯（HFO反式 - 1234ze）的一种整合方法，从而产生顺式-1,3,3,3-四氟丙烯 3,3,3-四氟丙烯，反式-1,3,3,3-四氟丙烯和氟化氢。然后任选地回收氟化氢，将顺式1234ze催化异构化成反式1234ze，并回收反式-1,3,3,3-四氟丙烯。

10. 发明授权

US5709093A Process for minimizing compositional changes 失效
标题翻译：减少组成变化的过程
公开(公告)号：US5709093A
公开(公告)日：1998-01-20
申请号：US671440
申请日：1996-06-27
申请人： Gustavo Cerri , Maurice William Hunt
发明人： Gustavo Cerri , Maurice William Hunt
IPC分类号： F17C7/00 , F25B41/00
CPC分类号： F17C7/00
摘要： A process for minimizing the compositional changes that occur in a non-azeotropic composition during the withdrawal of an amount of the composition from a storage vessel. The process of the invention provides for the minimization of compositional changes by cooling the non-azeotropic composition.
摘要翻译：在将一定量的组合物从储存容器中取出期间使在非共沸组合物中发生的组成变化最小化的方法。本发明的方法通过冷却非共沸组合物来提供组合变化的最小化。

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