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1. 发明授权

US06224781B1 Compositions comprising hydrofluorocarbons and their manufacture 有权
标题翻译：包含氢氟碳化合物及其制备的组合物
公开(公告)号：US06224781B1
公开(公告)日：2001-05-01
申请号：US09137343
申请日：1998-08-20
申请人： Barry A. Mahler , V. N. Mallikarjuna Rao , Allen Capron Sievert , Munirpallam A. Subramanian , Edwin James Warwas
发明人： Barry A. Mahler , V. N. Mallikarjuna Rao , Allen Capron Sievert , Munirpallam A. Subramanian , Edwin James Warwas
IPC分类号： A62D100
CPC分类号： A62D1/0057 , A62D1/00
摘要： A process is disclosed for producing compositions including (a) a compound selected from the group consisting of CHF2CF3, CHF2CHF2, CH2FCF3, CH3CF3, CH3CHF2, CH2FCF2CHF2 and CHF2CF2CF2CHF2 and (b) at least one saturated halogenated hydrocarbon and/or ether having the formula: CnH2n+2−a−bClaFbOc wherein n is an integer from 1 to 4, a is an integer from 0 to 2n+1, b is an integer from 1 to 2n+2−a, and c is 0 or 1, provided that when c is 1 then n is an integer from 2 to 4, and provided that component (b) does not include the selected component (a) compound, wherein the molar ratio of component (b) to component (a) is between about 1:99 and a molar ratio of HF to component (a) in an azeotrope or azeotrope-like composition of component (a) with HF. This process involves (A) combining (i) the azeotrope or azeotrope-like composition with (ii) at least one fluorination precursor compound wherein the precursor component (ii) is the fluorination precursor to component (b); and (B) reacting a sufficient amount of the HF from the azeotrope or azeotrope-like composition (i) with precursor component (ii) to provide a composition containing components (a) and (b) in said ratio.
摘要翻译：公开了用于制备组合物的方法，其包括（a）选自CHF 2 CF 3，CHF 2 CHF 2，CH 2 FFC 3，CH 3 CF 3，CH 3 CHF 2，CH 2 F 2 CHF 2和CHF 2 CF 2 CF 2 CHF 2的化合物和（b）至少一种具有下式的饱和卤代烃和/或醚：其中n为1〜4的整数，a为0〜2n + 1的整数，b为1〜2n + 2-a的整数，c为0或1，条件是当c为1时，n为组分（b）与组分（a）的摩尔比为约1:99，摩尔比为2〜4的整数，并且组分（b）不包括所选择的组分（a）化合物，其中组分 HF与组分（a）在组分（a）的共沸物或类共沸组合物中与HF混合。该方法包括：（i）将共沸物或类共沸组合物与（ii）至少一种氟化前体化合物组合（其中前体组分（ii）为组分（b）的氟化前体）; 和（B）使来自共沸物或类共沸组合物（i）的足够量的HF与前体组分（ii）反应，以提供含有所述比例的组分（a）和（b）的组合物。

2. 发明授权

US06635187B1 Compositions comprising hydrofluorocarbons and their manufacture 失效
公开(公告)号：US06635187B1
公开(公告)日：2003-10-21
申请号：US09713128
申请日：2000-11-15
申请人： Barry A. Mahler , V. N. Mallikarjuna Rao , Allen Capron Sievert
发明人： Barry A. Mahler , V. N. Mallikarjuna Rao , Allen Capron Sievert
IPC分类号： A62D106
CPC分类号： A62D1/0057 , A62D1/00
摘要： A process is disclosed for producing compositions including (a) a compound selected from the group consisting of CHF2CF3, CHF2CHF2, CH2FCF3, CH3CF3, CH3CHF2, CH2FCF2CHF2 and CHF2CF2CF2CHF2 and (b) at least one saturated halogenated hydrocarbon and/or ether having the formula: CnH2n+2-a-bClaFbOc wherein n is an integer from 1 to 4, a is an integer from 0 to 2n+1, b is an integer from 1 to 2n+2-a, and c is 0 or 1, provided that when c is 1 then n is an integer from 2 to 4, and provided that component (b) does not include the selected component (a) compound, wherein the molar ratio of component (b) to component (a) is between about 1:99 and a molar ratio of HF to component (a) in an azeotrope or azeotrope-like composition of component (a) with HF. This process involves (A) combining (i) the azeotrope or azeotrope-like composition with (ii) at least one fluorination precursor compound wherein the precursor component (ii) is the fluorination precursor to component (b); and (B) reacting a sufficient amount of the HF from the azeotrope or azeotrope-like composition (i) with precursor component (ii) to provide a composition containing components (a) and (b) in said ratio. In addition, compositions are disclosed comprising component (a) (e.g., CHF2CHF2), and component (b) wherein component (b) includes at least two compounds, at least one of which is an ether, and the molar ratio of component (b) to component (a) is between about 1:99 and a molar ratio of HF to component (a) in an azeotrope or azeotrope-like composition of component (a) with HF. Also disclosed is a process for recovering HF from a product mixture comprising HF and CHF2CHF2, which involves distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and CHF2CHF2; and distilling said azeotrope to recover HF as an azeotropic composition containing HF and CHF2CHF2; and compositions of hydrogen fluoride in combination with an effective amount of CHF2CHF2 to form an azeotrope or azeotrope-like composition with hydrogen fluoride (e.g., compositions containing from about 70.5 to 75.5 mole percent CHF2CHF2).

3. 发明授权

US6077819A Azeotropes of chlorofluoroethanes of the formula CF.sub.3 CC1.sub.2+x ub . F.s1-x with HF and manufacturing processes therewith 失效
标题翻译：式CF3CC12 + xF1-x的氯氟乙烷与HF的共沸物及其制造方法
公开(公告)号：US6077819A
公开(公告)日：2000-06-20
申请号：US146862
申请日：1993-11-01
申请人： Barry A. Mahler , Ralph N. Miller , V. N. Mallikarjuna Rao
发明人： Barry A. Mahler , Ralph N. Miller , V. N. Mallikarjuna Rao
IPC分类号： C11D7/50 , C11D3/18 , C11D3/43
CPC分类号： C11D7/5018
摘要： A process is disclosed for recovering HF from a product mixture comprising HF and at least one compound having the formula CF.sub.3 CCl.sub.2+x F.sub.1-x (where x is 0 or 1). The process includes the steps of distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and said at least one compound; and distilling said azeotrope to recover HF as an azeotropic composition containing HF and said at least one compound. Also disclosed are azeotrope and azeotrope-like compositions which consist essentially of hydrogen fluoride in combination with from about 10 to 27 mole percent CCl.sub.3 CF.sub.3 or from about 35 to 56 mole percent CCl.sub.2 FCF.sub.3.
摘要翻译：公开了从包含HF和至少一种具有式CF 3 CCl 2 + xF 1-x（其中x为0或1）的化合物的产物混合物中回收HF的方法。该方法包括以下步骤：蒸馏产物混合物以除去具有比含有HF的最低沸点共沸物的沸点低的所有产物和所述至少一种化合物; 并蒸馏所述共沸物以回收HF作为包含HF和所述至少一种化合物的共沸组合物。还公开了共沸物和类共沸组合物，其基本上由氟化氢与约10至27摩尔％CCl 3 CF 3或约35至56摩尔％CCl 3 FCF 3组合。

4. 发明授权

US06274781B1 Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF 失效
标题翻译：含有氟的二卤代甲烷的生产和含有氯的二卤代甲烷与HF的共沸物
公开(公告)号：US06274781B1
公开(公告)日：2001-08-14
申请号：US08146334
申请日：1993-11-01
申请人： Paul S. Furmanek , David A. Glasscock , Michael Keane, Jr. , Barry A. Mahler , V. N. Mallikarjuna Rao
发明人： Paul S. Furmanek , David A. Glasscock , Michael Keane, Jr. , Barry A. Mahler , V. N. Mallikarjuna Rao
IPC分类号： C07C1708
CPC分类号： C07C19/10 , C07C17/206 , C07C19/12 , C07C19/08
摘要： A process for producing difluoromethane is disclosed which includes the step of contacting a gaseous mixture containing CH2Cl2 and hydrogen fluoride with a catalyst containing a catalytically effective amount of trivalent chromium supported on a carbon having an ash content of less than 0.5 percent by weight, at a temperature of from about 180 ° C. to about 375° C. The catalyst and temperature conditions of this process allow the concurrent reaction CCl3CF3 with HF to form CCl2FCF3. CH2ClF and unreacted CH2Cl2, each of which may be recovered as an azeotrope with HF, may be recycled.
摘要翻译：公开了一种制备二氟甲烷的方法，其包括使含有CH 2 Cl 2和氟化氢的气体混合物与含有催化有效量的三价铬的催化剂接触的步骤，所述催化有效量的三价铬负载在灰分含量小于0.5重量％的碳上，温度为约180℃至约375℃。该方法的催化剂和温度条件允许同时使CCl 3 CF 3与HF反应形成CCl 2 FCF 3。 CH 2 ClF和未反应的CH 2 Cl 2，其各自可以与HF共沸回收，可以循环使用。

5. 发明授权

US5523499A Purification of hexafluoroethane products 失效
标题翻译：六氟乙烷产品的净化
公开(公告)号：US5523499A
公开(公告)日：1996-06-04
申请号：US295669
申请日：1994-12-28
申请人： David R. Corbin , Richard E. Fernandez , Barry A. Mahler
发明人： David R. Corbin , Richard E. Fernandez , Barry A. Mahler
IPC分类号： C07C19/08 , C07C17/20 , C07C17/38 , C07C17/389
CPC分类号： C07C17/206 , C07C17/389
摘要： A process is disclosed for purifying a hexafluoroethane product containing CClF.sub.3 and/or CHF.sub.3 impurities which comprises the step of contacting the product with a sorbent for said impurities selected from activated carbons and inorganic (i.e. zeolite) molecular sieves. Also disclosed is an improvement to a process for producing CF.sub.3 CF.sub.3 wherein CClF.sub.3 and/or CHF.sub.3 impurities are removed from the product utilizing said sorbents.
摘要翻译： PCT No.PCT / US92 / 01607 Sec。 371日期1994年12月28日第 102（e）日期1994年12月28日PCT 1991年3月10日PCT公布。公开号WO93 / 17988 日本公报1993年9月16日。公开了一种用于纯化含有CClF 3和/或CHF 3杂质的六氟乙烷产物的方法，该方法包括使产物与选自活性炭和无机（即沸石）分子筛的所述杂质的吸附剂接触的步骤。还公开了对使用所述吸附剂从产物中除去CClF 3和/或CHF 3杂质的CF 3 CF 3的制备方法的改进。

6. 发明授权

US5421964A Process for separating HCl and halocarbons 失效
标题翻译：分离HCl和卤代烃的方法
公开(公告)号：US5421964A
公开(公告)日：1995-06-06
申请号：US55486
申请日：1993-04-30
申请人： Barry A. Mahler , Vinci M. Felix , Ralph N. Miller
发明人： Barry A. Mahler , Vinci M. Felix , Ralph N. Miller
IPC分类号： C01B7/07 , C07C17/38 , C07C19/08 , C07C19/10 , C07C19/12 , B01D3/40
CPC分类号： C01B7/0712 , C07C17/38 , C07C19/08 , C07C19/10 , C07C19/12
摘要： The present invention discloses an extractive distillation process for separating HCl from pentafluoroethane, chloropentafluoroethane, chlorotrifluoroethane, trifluoromethane, and other fully saturated and unsaturated fluorocarbons, chlorofluorocarbons and chlorocarbons.
摘要翻译：本发明公开了一种从五氟乙烷，氯五氟乙烷，三氟氯乙烷，三氟甲烷和其他完全饱和和不饱和碳氟化合物，氯氟烃和氯代烃分离HCl的萃取蒸馏方法。

7. 发明授权

US5600040A Separation of tetrafluoroethane isomers 失效
标题翻译：分离四氟乙烷异构体
公开(公告)号：US5600040A
公开(公告)日：1997-02-04
申请号：US374617
申请日：1995-02-17
申请人： David R. Corbin , Barry A. Mahler
发明人： David R. Corbin , Barry A. Mahler
IPC分类号： C07C17/389 , C07C19/08
CPC分类号： C07C17/389
摘要： Separation of CF.sub.3 CH.sub.2 F and CHF.sub.2 CHF.sub.2 from a mixture thereof is effectively achieved using either inorganic molecular sieves having suitable intermediate electronegaativities (compared to Zeolite Na-X) or activated carbon.
摘要翻译： PCT No.PCT / US92 / 05851 Sec。 371日期：1995年2月17日 102（e）日期1995年2月17日PCT提交1992年7月17日PCT公布。出版物WO94 / 02440 日期1994年2月3日CF3CH2F和CHF2CHF2从其混合物中的分离使用具有合适的中间电负性（无机沸石Na-X）或活性炭的无机分子筛来实现。

8. 发明授权

US5399549A Process for the manufacture of pentafluoroethane 失效
标题翻译：五氟乙烷生产工艺
公开(公告)号：US5399549A
公开(公告)日：1995-03-21
申请号：US178586
申请日：1994-01-10
申请人： Vinci M. Felix , William H. Gumprecht , Barry A. Mahler
发明人： Vinci M. Felix , William H. Gumprecht , Barry A. Mahler
IPC分类号： B01J23/26 , B01J37/08 , B01J37/26 , C07C17/20 , C07C19/08 , C07C17/08
CPC分类号： C07C19/08 , B01J23/26 , B01J37/088 , B01J37/26 , C07C17/206
摘要： An improved process for the manufacture of CF.sub.3 CHF.sub.2 by contacting CF.sub.3 CHCl.sub.2 or CF.sub.3 CHClF with HF in the presence of a Cr.sub.2 O.sub.3 catalyst prepared by pyrolysis of ammonium dichromate, the reaction being conducted under controlled conditions whereby the production of CF.sub.3 CHF.sub.2 is maximized, and the formation of chloropentafluoroethane (CF.sub.3 CClF.sub.2) and other perhalo derivatives is minimized. The subject hydrogen-containing compound is useful as a blowing agent, propellant, refrigerant, fire extinguishing agent, or sterilant carrier gas.
摘要翻译：在通过热重分解重铬酸盐制备的Cr 2 O 3催化剂的存在下，使CF 3 CHCl 2或CF 3 CHClF与HF接触的改进的CF 3 CHF 2的方法，该反应在控制条件下进行，由此使CF 3 CHF 2的产生最大化，并形成氯五氟乙烷 CF 3 CClF 2）和其他全卤代衍生物被最小化。本发明的含氢化合物可用作发泡剂，推进剂，制冷剂，灭火剂或杀菌剂载气。

9. 发明授权

US5334787A Process for the manufacture of pentafluoroethane 失效
标题翻译：五氟乙烷生产工艺
公开(公告)号：US5334787A
公开(公告)日：1994-08-02
申请号：US989481
申请日：1992-11-12
申请人： Vinci M. Felix , William H. Gumprecht , Barry A. Mahler
发明人： Vinci M. Felix , William H. Gumprecht , Barry A. Mahler
IPC分类号： B01J23/26 , B01J37/08 , B01J37/26 , C07C17/20 , C07C19/08 , C07C17/08
CPC分类号： C07C19/08 , B01J23/26 , B01J37/088 , B01J37/26 , C07C17/206
摘要： An improved process for the manufacture of CF.sub.3 CHF.sub.2 by contacting 1,2-dichloro-1,1,2-trifluoroethane (CClF.sub.2 CHClF) or 1-chloro-1,1,2,2-tetrafluoroethane (CHF.sub.2 CClF.sub.2) or mixtures of CF.sub.3 CHCl.sub.2 and CClF.sub.2 CHClF or mixtures of CF.sub.3 CHClF and CHF.sub.2 CClF.sub.2 with HF in the presence of a Cr.sub.2 O.sub.3 catalyst prepared by pyrolysis of ammonium dichromate, the reaction being conducted under controlled conditions whereby the production of CF.sub.3 CHF.sub.2 is maximized, and the formation of chloropentafluoroethane (CF.sub.3 CClF.sub.2) and other perhalo derivatives is minimized. The subject hydrogen-containing compound is useful as a blowing agent, propellant, refrigerant, fire extinguishing agent, or sterilant carrier gas.
摘要翻译：通过使1,2-二氯-1,1,2-三氟乙烷（CClF 2 CHClF）或1-氯-1,1,2,2-四氟乙烷（CHF 2 CClF 2）或CF 3 CHCl 2和CClF 2 CHClF的混合物接触来制备CF 3 CHF 2的改进方法或 CF 3 CHClF和CHF 2 CClF 2与HF的混合物在通过热解重铬酸铵制备的Cr 2 O 3催化剂存在下进行，反应在控制条件下进行，由此使CF 3 CHF 2的产生最大化，并使氯五氟乙烷（CF 3 CClF 2）和其它全卤代衍生物的形成最小化。本发明的含氢化合物可用作发泡剂，推进剂，制冷剂，灭火剂或杀菌剂载气。

10. 发明授权

US5858066A Process for separating and recovering fluorocarbons and HCI from gaseous mixtures thereof 失效
标题翻译：从其气体混合物中分离和回收碳氟化合物和HCl的方法
公开(公告)号：US5858066A
公开(公告)日：1999-01-12
申请号：US861140
申请日：1997-05-21
申请人： William G. O'Brien , Barry A. Mahler
发明人： William G. O'Brien , Barry A. Mahler
IPC分类号： B01D53/22
CPC分类号： B01D53/228
摘要： An improved process is disclosed for separating and recovering a fluorocarbon and hydrogen chloride (HCl) from a gaseous fluorocarbon/HCl mixture, wherein the fluorocarbon and HCl are difficult to separate by conventional means because of the presence or potential formation of an azeotrope or azeotrope-like composition in the mixture, such process comprising using a semi-permeable membrane unit to form a fluorocarbon-depleted stream and a fluorocarbon-enriched stream which may then be further processed individually by distillation.
摘要翻译：公开了一种用于从气态碳氟化合物/ HCl混合物中分离和回收碳氟化合物和氯化氢（HCl）的改进方法，其中氟代烃和HCl难以通过常规方法分离，因为存在或潜在地形成共沸物或共沸物 - 该方法包括使用半透膜单元形成贫碳氟化物流和富含氟烃的物流，然后可以通过蒸馏分别进一步处理。

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