公开(公告)号：US5763708A

公开(公告)日：1998-06-09

申请号：US530649

申请日：1995-09-20

Applicant: Paul Gene Clemmer ,  Addison Miles Smith ,  Hsueh Sung Tung ,  John Stephen Bass

Inventor： Paul Gene Clemmer ,  Addison Miles Smith ,  Hsueh Sung Tung ,  John Stephen Bass

IPC: B01J23/26 ,  C07B61/00 ,  C07C17/20 ,  C07C17/383 ,  C07C19/08 ,  C07C17/07

CPC classification number: C07C17/206

Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.

公开(公告)号：US5654494A

公开(公告)日：1997-08-05

申请号：US516669

申请日：1995-08-18

Applicant: Hsueh Sung Tung ,  Paul Gene Clemmer ,  Gustavo Cerri ,  Yuon Chiu ,  Stanley Michael Jaskot ,  Nemesio Rogelio Viso ,  Addison Miles Smith ,  Jeffrey Warren McKown ,  Jay Philip Friedenson

Inventor： Hsueh Sung Tung ,  Paul Gene Clemmer ,  Gustavo Cerri ,  Yuon Chiu ,  Stanley Michael Jaskot ,  Nemesio Rogelio Viso ,  Addison Miles Smith ,  Jeffrey Warren McKown ,  Jay Philip Friedenson

IPC: B01J23/26 ,  C07B61/00 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C17/269 ,  C07C17/383 ,  C07C19/08 ,  C07C17/08

CPC classification number: C07C19/08 ,  C07C17/10 ,  C07C17/206 ,  C07C17/21 ,  C07C17/269 ,  C07C17/383

Abstract: This invention relates to a process for producing 1,1,1,2-tetrafluoroethane (HFC-134a). The process reacts, 1,1,1-trifluoro-2-chloroethane (HCFC-133a) and hydrogen fluoride in a first reactor. The product resulting from the first reaction step is brought to a second reactor together with trichloroethylene and hydrogen fluoride. The second reaction is conducted at a higher temperature than the first reactor. Optionally, HCl is removed prior to removal of the crude HFC-134a product. Unreacted HCFC-133a, trichloroethylene and hydrogen fluoride may be recycled back to the first reactor.

Abstract translation: 本发明涉及一种生产1,1,1,2-四氟乙烷（HFC-134a）的方法。 该方法在第一反应器中使1,1,1-三氟-2-氯乙烷（HCFC-133a）和氟化氢反应。 将由第一反应步骤得到的产物与三氯乙烯和氟化氢一起送至第二反应器。 第二反应在比第一反应器更高的温度下进行。 任选地，在除去粗HFC-134a产物之前除去HCl。 未反应的HCFC-133a，三氯乙烯和氟化氢可循环回第一反应器。

公开(公告)号：US5744661A

公开(公告)日：1998-04-28

申请号：US729702

申请日：1996-10-07

Applicant: Matthew Hermes Luly ,  Addison Miles Smith ,  Kane David Cook

Inventor： Matthew Hermes Luly ,  Addison Miles Smith ,  Kane David Cook

IPC: C07C17/38

CPC classification number: C07C17/38

Abstract: A method for removing unsaturated impurities from 1,1-difluoroethane by intimately contacting the impure 1,1-difluoroethane with sulfuric acid. This process is especially useful for removing one or more unsaturated halocarbons having two carbon atoms such as vinyl chloride, vinyl fluoride and blends thereof from the 1,1-difluoroethane.

Abstract translation: 通过使不纯的1,1-二氟乙烷与硫酸紧密接触，从1,1-二氟乙烷除去不饱和杂质的方法。 该方法特别可用于从1,1-二氟乙烷中除去具有两个碳原子的一种或多种不饱和卤代烃，如氯乙烯，氟乙烯及其共混物。

公开(公告)号：US06844474B1

公开(公告)日：2005-01-18

申请号：US08959748

申请日：1997-10-28

Applicant: Paul Gene Clemmer ,  Addison Miles Smith ,  Hsueh Sung Tung ,  John Stephen Bass

Inventor： Paul Gene Clemmer ,  Addison Miles Smith ,  Hsueh Sung Tung ,  John Stephen Bass

IPC: B01J23/26 ,  C07B61/00 ,  C07C17/20 ,  C07C17/383 ,  C07C19/08 ,  C07C17/00 ,  C07C17/158 ,  C07C17/38

CPC classification number: C07C17/206 ,  C07C19/08

Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.

Abstract translation: 本发明提供用于生产二氟甲烷HFC-32的气相方法。 本发明的方法提供通过显示出良好的产物收率和选择性的方法制备HFC-32。

公开(公告)号：US5902914A

公开(公告)日：1999-05-11

申请号：US514545

申请日：1995-08-14

Applicant: Tadeusz Piotr Rygas ,  Hsueh Sung Tung ,  Addison Miles Smith

Inventor： Tadeusz Piotr Rygas ,  Hsueh Sung Tung ,  Addison Miles Smith

IPC: C07B61/00 ,  C07C17/278 ,  C07C19/01 ,  C07C17/30 ,  C07C21/18

CPC classification number: C07C17/278 ,  C07C19/01

Abstract: A process for the preparation of halogenated alkanes is provided. In particular, a process is provided for the highly selective preparation of haloalkanes, including 1,1,1,3,3-pentachloropropane, pentachlorobutane, and hepatchlorohexane, in good yield.

Abstract translation: 提供卤代烷烃的制备方法。 特别地，提供了以高产率高选择性地制备卤代烷烃的方法，包括1,1,1,3,3-五氯丙烷，五氯丁烷和肝四氟乙烷。

公开(公告)号：US5856595A

公开(公告)日：1999-01-05

申请号：US40254

申请日：1998-03-03

Applicant: Daniel Christopher Merkel ,  Addison Miles Smith ,  Kim Marie Fleming

Inventor： Daniel Christopher Merkel ,  Addison Miles Smith ,  Kim Marie Fleming

IPC: C07C17/38 ,  C07C17/395

CPC classification number: C07C17/38 ,  C07C17/395

Abstract: A 1,1,1,3,3,3-hexafluoropropane product of greater than about 99.9 weight percent purity containing less than about 100 parts per million unsaturated fluorocarbons and a method for its purification from a distillation mixture of 1,1,1,3,3,3-hexafluoropropane with at least one unsaturated fluorocarbon which method includes the steps of:a) reacting the mixture with chlorine to saturate the unsaturated fluorocarbons,b) washing the reacted mixture with an aqueous solution to remove residual hydrochloric acid and chlorine,c) removing the aqueous solution, andd) distilling the reacted mixture to obtain a 1,1,1,3,3,3-hexafluoropropane product of greater than about 99.9 weight percent purity containing less than about 100 parts per million unsaturated fluorocarbons.

Abstract translation: 含有大于约99.9重量百分比的纯度的1,1,1,3,3,3-六氟丙烷产品，其含量低于约100ppm /百万份不饱和碳氟化合物，以及其从1,1,1,3,3-六氟丙烷的蒸馏混合物中纯化的方法， 具有至少一种不饱和碳氟化合物的3,3,3-六氟丙烷该方法包括以下步骤：a）使混合物与氯反应以饱和不饱和碳氟化合物，b）用水溶液洗涤反应混合物以除去残留的盐酸和氯 ，c）除去水溶液，和d）蒸馏反应的混合物，得到大于约99.9重量％纯度的1,1,1,3,3,3-六氟丙烷产物，其含有少于约100ppm的不饱和碳氟化合物 。

公开(公告)号：US06268540B1

公开(公告)日：2001-07-31

申请号：US08672005

申请日：1996-06-24

Applicant: Alagappan Thenappan ,  Addison Miles Smith ,  Jeffrey Warren McKown ,  Robert Louis Bell

Inventor： Alagappan Thenappan ,  Addison Miles Smith ,  Jeffrey Warren McKown ,  Robert Louis Bell

IPC: C07C1700

CPC classification number: C07C17/206

Abstract: The present invention provides catalysts and processes for the fluorination of hydrohalomethanes. In particular, the invention provides a process for the fluorination of hydrohalomethanes using hydrogen fluoride and a Lewis Acid catalyst. More specifically, catalysts and a process for the fluorination of dichloromethane are provided.

Abstract translation: 本发明提供了氢卤甲烷氟化的催化剂和方法。 特别地，本发明提供使用氟化氢和路易斯酸催化剂氟化氢卤甲烷的方法。 更具体地，提供催化剂和二氯甲烷氟化方法。

公开(公告)号：US06365580B1

公开(公告)日：2002-04-02

申请号：US09425150

申请日：1999-10-21

Applicant: Paul Gene Clemmer ,  Addison Miles Smith ,  Hsueh Sung Tung ,  John Stephen Bass

Inventor： Paul Gene Clemmer ,  Addison Miles Smith ,  Hsueh Sung Tung ,  John Stephen Bass

IPC: C07C1908

CPC classification number: C07C17/206 ,  C07C19/08

Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.

Abstract translation: 本发明提供用于生产二氟甲烷HFC-32的气相方法。 本发明的方法提供通过显示出良好的产物收率和选择性的方法制备HFC-32。

公开(公告)号：US06274779B1

公开(公告)日：2001-08-14

申请号：US09513899

申请日：2000-02-28

Applicant: Daniel Christopher Merkel ,  Addison Miles Smith ,  Kim Marie Fleming

Inventor： Daniel Christopher Merkel ,  Addison Miles Smith ,  Kim Marie Fleming

IPC: C07C1908

CPC classification number: C07C17/38 ,  C07C17/395 ,  C07C19/08

Abstract: A 1,1,1,3,3,3-hexafluoropropane product of greater than about 99.9 weight percent purity containing less than about 100 parts per million unsaturated fluorocarbons and a method for its purification from a distillation mixture of 1,1,1,3,3,3-hexafluoropropane with at least one unsaturated fluorocarbon which method includes the steps of: a) reacting the mixture with chlorine to saturate the unsaturated fluorocarbons, b) washing the reacted mixture with an aqueous solution to remove residual hydrochloric acid and chlorine, c) removing the aqueous solution, and d) distilling the reacted mixture to obtain a 1,1,1,3,3,3-hexafluoropropane product of greater than about 99.9 weight percent purity containing less than about 100 parts per million unsaturated fluorocarbons.

Abstract translation: 含有大于约99.9重量百分比的纯度的1,1,1,3,3,3-六氟丙烷产品，其含量低于约100ppm /百万份不饱和碳氟化合物，以及其从1,1,1,3,3-六氟丙烷的蒸馏混合物中纯化的方法， 具有至少一种不饱和碳氟化合物的3,3,3-六氟丙烷该方法包括以下步骤：a）使混合物与氯反应以饱和不饱和碳氟化合物，b）用水溶液洗涤反应混合物以除去残留的盐酸和氯 ，c）除去水溶液，和d）蒸馏反应的混合物，得到大于约99.9重量％纯度的含有少于约100份/百万个不饱和碳氟化合物的1,1,1,3,3,3-六氟丙烷产物。

公开(公告)号：US5902912A

公开(公告)日：1999-05-11

申请号：US882805

申请日：1997-06-26

Applicant: Hsueh Sung Tung ,  Daniel Christopher Merkel ,  Addison Miles Smith

Inventor： Hsueh Sung Tung ,  Daniel Christopher Merkel ,  Addison Miles Smith

IPC: B01J3/04 ,  B01J3/00 ,  B01J19/02 ,  C07B61/00 ,  C07C17/20 ,  C07C19/08 ,  C07C17/08

CPC classification number: B01J19/02 ,  B01J3/00 ,  C07C17/206 ,  B01J2219/0245

Abstract: A process for producing a hydrofluorocarbon (HFC) comprising (a) providing a fluoropolymer-lined reactor; (b) adding a chlorinated organic compound in liquid phase and a fluorination agent to the reactor; and (c) reacting at least a portion of the chlorinated organic compound with at least a portion of the fluorination agent to produce the HFC.

Abstract translation: 一种生产氢氟烃（HFC）的方法，包括（a）提供含氟聚合物衬里的反应器; （b）将液相中的氯化有机化合物和氟化剂加入到反应器中; 和（c）使至少一部分氯化有机化合物与氟化剂的至少一部分反应以产生HFC。