公开(公告)号：US20020143215A1

公开(公告)日：2002-10-03

申请号：US10057570

申请日：2002-01-25

发明人： Hsueh Sung Tung ,  Clayton Herbert Carson ,  Hang Thanh Pham

IPC分类号： C07C017/10

CPC分类号： C07C19/08 ,  C07C17/087 ,  C07C17/206 ,  C07C17/21 ,  C07C17/38 ,  Y02P20/582

摘要： Disclosed is an improved HFC manufacturing processes of the type which produces an intermediate product stream that includes a mixture of HF and at least one compound, usually an HCFC, which is relatively resistant to further fluorination. The improvement involves separating the unreactive compound(s) from the product stream, preferably using liquid:liquid phase separation, and substantially avoiding recycle of the unreactive compound to the fluorination reaction. The separated unreactive compound(s) are substantially free of HF.

摘要翻译： 公开了一种改进的HFC制造方法，其生产包含HF和至少一种化合物（通常为HCFC）的混合物的中间产物流，其相对于进一步氟化的耐受性。 改进包括从产物流中分离非反应性化合物，优选使用液体：液相分离，并且基本上避免将非反应性化合物再循环到氟化反应。 分离的非反应性化合物基本上不含HF。

公开(公告)号：US6444011B2

公开(公告)日：2002-09-03

申请号：US76826201

申请日：2001-01-25

申请人： AIR LIQUIDE AMERICAN

发明人： LI YAO-EN ,  PAGANESSI JOSPEH E ,  VASSALLO DAVID ,  FLEMING GREGORY K

IPC分类号： B01D53/68 ,  B01D53/00 ,  B01D53/02 ,  B01D53/22 ,  B01D53/32 ,  B01D63/02 ,  B01D71/48 ,  B01D71/50 ,  B01D71/56 ,  B01D71/62 ,  B01D71/64 ,  B01D71/68 ,  C07C17/38 ,  B01D3/00 ,  B01D5/00 ,  B01D53/04

CPC分类号： B01D53/225 ,  B01D53/22 ,  B01D53/226 ,  B01D53/229 ,  B01D2257/204 ,  B01D2257/2066 ,  C07C17/38 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

摘要翻译： 提供了从气体混合物中回收至少一种全氟化合物气体的方法和系统。 在一个实施方案中，本发明的方法包括以下步骤：a）提供包含至少一种全氟化合物气体和至少一种载气的气体混合物，所述气体混合物处于预定压力; b）提供至少一次具有进料侧和渗透侧的玻璃状聚合物膜; c）使至少一个膜的进料侧与气体混合物接触; d）以基本上等于预定压力的压力从作为非渗透物流的膜的进料侧排出基本上包含至少一种全氟化合物气体的浓缩气体混合物; 和e）作为渗透物流从膜的渗透侧排出基本上包含至少一种载气的贫化气体混合物。

公开(公告)号：US06423290B1

公开(公告)日：2002-07-23

申请号：US09585237

申请日：2000-05-31

申请人： Anilkumar C. Bhatt ,  Jerome J. Wagner

发明人： Anilkumar C. Bhatt ,  Jerome J. Wagner

IPC分类号： C01B719

CPC分类号： C01B7/198 ,  C01B7/195 ,  C07C17/38

摘要： An organic solvent is separated from a waste stream comprising hydrofluoric acid, an organic solvent and etchant contaminants. The process comprises separating the hydrofluoric acid by subjecting the waste stream to at least one of the following processes: ion exchange; extraction of the hydrofluoric acid; electrophoresis; converting the hydrofluoric acid to an insoluble salt; to thereby obtain a first composition containing the hydrofluoric acid and a second stream containing the organic solvent and being substantially free of the hydrofluoric acid; and then distilling the second stream to recover the organic solvent free of the etching contaminants.

摘要翻译： 将有机溶剂与包含氢氟酸，有机溶剂和蚀刻剂污染物的废物流分离。 该方法包括通过使废物流进行以下至少一种方法分离氢氟酸：离子交换;氢氟酸的提取;电泳;将氢氟酸转化为不溶性盐;从而获得含有氢氟酸的第一组合物 酸和含有有机溶剂并且基本上不含氢氟酸的第二料流; 然后蒸馏第二流以回收没有蚀刻污染物的有机溶剂。

公开(公告)号：US06403849B1

公开(公告)日：2002-06-11

申请号：US09669662

申请日：2000-09-26

申请人： Zai-Ming Qiu ,  Zhongxing Zhang

发明人： Zai-Ming Qiu ,  Zhongxing Zhang

IPC分类号： C07C1738

CPC分类号： C07C23/10 ,  C07C17/38 ,  C07C17/395 ,  C07C19/08

摘要： A method for obtaining purified perfluorocarbon compositions, and purified compositions containing such perfluorocarbons.

摘要翻译： 一种获得纯化的全氟化碳组合物的方法，以及含有这种全氟化碳的纯化组合物。

公开(公告)号：US06399841B1

公开(公告)日：2002-06-04

申请号：US09937389

申请日：2001-09-24

申请人： Alain Lambert ,  Vincent Wilmet

发明人： Alain Lambert ,  Vincent Wilmet

IPC分类号： C07C1738

CPC分类号： C07C17/38 ,  C01B7/195 ,  C07C17/206 ,  C07C19/08

摘要： Hydrogen fluoride is separated from its mixtures with 1,1,1,3,3-pentafluorobutane by extraction using an organic solvent containing a 1,1,1,3,3-chloro(fluoro)butane.

摘要翻译： 使用含有1,1,1,3,3-氯（氟）丁烷的有机溶剂萃取，将氟化氢与1,1,1,3,3-五氟丁烷的混合物分离。

公开(公告)号：US06376727B1

公开(公告)日：2002-04-23

申请号：US09367900

申请日：1999-08-19

申请人： V. N. Mallikarjuna Rao ,  Allen Capron Sievert

发明人： V. N. Mallikarjuna Rao ,  Allen Capron Sievert

IPC分类号： C07C1700

CPC分类号： C07C19/08 ,  B01J23/868 ,  B01J27/12 ,  B01J27/132 ,  B01J37/0009 ,  B01J37/06 ,  C07C17/00 ,  C07C17/087 ,  C07C17/21 ,  C07C17/23 ,  C07C17/354 ,  C07C17/38 ,  C07C43/12 ,  Y02P20/582 ,  C07C21/18

摘要： Disclosed are azeotropic compositions comprising CF3CHFCF3 and HF. Also disclosed are compositions and a process for producing compositions comprising (c1) CF3CHFCF3, CF3CH2CF3, or CHF2CH2CF3, and (c2) at least one saturated halogenated hydrocarbon and or ether having the formula: CnH2n+2−a−bClaFbOc wherein n is an integer from 1-4, a is an integer from 0-2n+1, b is an integer from 1-2n+2a, and c is 0 or 1, provided that when c is 1 then n is an integer from 2-4, and provided that component (c2) does not include the selected component (c1) compound, wherein the molar ratio of component (c2) to component (c1) is between about 1:99 and a molar ratio of HF to component (c1) in an azeotrope or azeotrope-like composition of component (c1) with HF. The process involves (A) combining (1) the azeotropic composition with (ii) the fluorination precursor to component (c2); and (B) reacting a sufficient amount of the HF from the azeotrope or azeotrope-like composition (1) with the precursor component (ii) to provide a composition containing components (c1) and (c2) in the desired ratio. The compositions include at least two (c1) compounds, at least one of which is an ether.

摘要翻译： 公开了包含CF 3 CHFCF 3和HF的共沸组合物。 还公开了组合物和制备包含（c1）CF 3 CHFCF 3，CF 3 CH 2 CF 3或CHF 2 CH 2 CF 3的组合物和（c2）至少一种具有下式的饱和卤代烃和或醚的组合物和方法：C n H 2n + 2-a-b Cl a F b O c其中n是整数 从1-4开始，a是0-2n + 1的整数，b是1-2n + 2a的整数，c是0或1，条件是当c为1时，n为2-4的整数， （c2）与成分（c1）的摩尔比为约1:99，HF与成分（c1）的摩尔比在下述式（c2）中，式（c2） 组分（c1）与HF的共沸物或类共沸组合物。 该方法包括（A）将（1）共沸组合物与（ii）氟化前体与组分（c2）组合; 和（B）使足够量的来自共沸物或类共沸组合物（1）的HF与前体组分（ii）反应，以提供含有所需比例的组分（c1）和（c2）的组合物。 组合物包括至少两种（c1）化合物，其中至少一种是醚。

公开(公告)号：US06346172B1

公开(公告)日：2002-02-12

申请号：US09242692

申请日：1999-04-13

申请人： Takehide Tsuda ,  Takashi Shibanuma

发明人： Takehide Tsuda ,  Takashi Shibanuma

IPC分类号： C07C17383

CPC分类号： C07C17/38

摘要： A process for refining difluoromethane by removing water which is contained in difluoromethane and has been believed to be difficult to be removed includes distilling difluoromethane which contains water so as to obtain difluoromethane as a distillate and a mixture as a bottom product of difluoromethane and chlorofluoromethane and/or dichloromethane which mixture contains water. The bottom product is recycled to a reaction step to be reused together with a feedstock.

摘要翻译： 通过除去二氟甲烷中含有的水并且据信难以除去的二氧氟甲烷的方法包括蒸馏含有水的二氟甲烷，以获得作为馏出物的二氟甲烷和作为二氟甲烷和氯氟甲烷的底部产物的混合物和/ 或二氯甲烷，该混合物含有水。 将底部产物再循环至与原料一起重复使用的反应步骤。

公开(公告)号：US20020001560A1

公开(公告)日：2002-01-03

申请号：US09189322

申请日：1998-11-09

发明人： RALPH NEWTON MILLER ,  BARRY ASHER MAHLER ,  CHIEN-PING CHAI KAO

IPC分类号： B01D003/34

CPC分类号： C07C19/08 ,  B01D3/36 ,  C01B21/083 ,  C01B21/0835 ,  C01B21/0837 ,  C01P2006/80 ,  C07C17/38

摘要： Nitrogen trifluoride (NF3) containing less than 10 parts-per-million molar impurities, e.g., tetrafluoromethane (PFC-14), is disclosed. Azeotropic and extractive distillation processes using entraining agents for separating NF3 and PFC-14 from each other and from mixtures with other electronics industry materials are disclosed.

摘要翻译： 公开了含有少于10ppm的摩尔杂质的三氟化氮（NF 3），例如四氟甲烷（PFC-14）。 公开了使用夹带剂将NF 3和PFC-14彼此分离的混合物和与其它电子工业材料的混合物的共沸和萃取蒸馏方法。

公开(公告)号：US06313360B1

公开(公告)日：2001-11-06

申请号：US09671993

申请日：2000-09-29

申请人： Richard Wilson ,  Rodney Klausmeyer ,  Lloyd Branam ,  Derrek Burrows ,  Jim Strathe ,  John Dawkins ,  Theo Lichtenstein ,  Joseph Weller ,  John Tummons

发明人： Richard Wilson ,  Rodney Klausmeyer ,  Lloyd Branam ,  Derrek Burrows ,  Jim Strathe ,  John Dawkins ,  Theo Lichtenstein ,  Joseph Weller ,  John Tummons

IPC分类号： C07C1726

CPC分类号： C07C17/278 ,  C07C17/38 ,  C07C17/383 ,  C07C19/01

摘要： A process is provided for the production of 1,1,1,3,3-pentachloropropane. The process comprises: (a) producing a product mixture in a reactor by reacting carbon tetrachloride and vinyl chloride in the presence of a catalyst mixture comprising organophosphate solvent, iron metal and ferric chloride under conditions sufficient to produce 1,1,1,3,3-pentachloropropane; (b) subjecting the 1,1,1,3,3-pentachloropropane containing product mixture from step (a) to evaporation such that a fraction enriched in 1,1,1,3,3-pentachloropropane is separated from the product mixture and a bottoms fraction results which comprises the iron metal/ferric chloride catalyst components and heavy end by-products; and (c) recycling at least a portion of the bottoms fraction from step (b) to the reactor.

摘要翻译： 提供了制备1,1,1,3,3-五氯丙烷的方法。 该方法包括：（a）在含有有机磷酸酯溶剂，铁金属和氯化铁的催化剂混合物存在下，通过使四氯化碳和氯乙烯反应，在足以产生1,1,1,3， 3-五氯丙烷; （b）将来自步骤（a）的含1,1,1,3,3-五氯丙烷的产物混合物进行蒸发，使富含1,1,1,3,3-五氯丙烷的馏分与产物混合物分离， 包括铁金属/氯化铁催化剂组分和重的末端副产物的底部馏分; 和（c）将来自步骤（b）的塔底馏分的至少一部分再循环到反应器中。

公开(公告)号：US06312502B1

公开(公告)日：2001-11-06

申请号：US09296651

申请日：1999-04-23

申请人： Yao-En Li ,  Jospeh E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

发明人： Yao-En Li ,  Jospeh E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

IPC分类号： B01D5322

CPC分类号： C07C17/38 ,  B01D53/22 ,  B01D53/225 ,  B01D53/226 ,  B01D53/228 ,  B01D53/229 ,  B01D2257/204 ,  B01D2257/2066 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

摘要翻译： 提供了从气体混合物中回收至少一种全氟化合物气体的方法和系统。 在一个实施方案中，本发明的方法包括以下步骤：a）提供包含至少一种全氟化合物气体和至少一种载气的气体混合物，所述气体混合物处于预定压力; b）提供至少一个具有进料侧和渗透侧的玻璃状聚合物膜; c）使至少一个膜的进料侧与气体混合物接触; d）以基本上等于预定压力的压力从作为非渗透物流的膜的进料侧排出基本上包含至少一种全氟化合物气体的浓缩气体混合物; 和e）作为渗透物流从膜的渗透侧排出基本上包含至少一种载气的贫化气体混合物。