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11. 发明授权

US06274780B1 Catalysts for halogenated hydrocarbon processing and their preparation and use 失效
标题翻译：用于卤代烃加工的催化剂及其制备和用途
公开(公告)号：US06274780B1
公开(公告)日：2001-08-14
申请号：US08677062
申请日：1996-07-09
申请人： V. N. Mallikarjuna Rao , Munirpallam A. Subramanian
发明人： V. N. Mallikarjuna Rao , Munirpallam A. Subramanian
IPC分类号： C07C1700
CPC分类号： C07C17/358 , B01J27/12 , B01J27/132 , C07C17/00 , C07C17/206 , C07C17/21 , C07C17/37 , C07C19/08 , C07C19/12 , C07C19/10
摘要： A process is disclosed for changing the fluorine content of halogenated hydrocarbons containing from 1 to 6 carbon atoms, in the presence of a multiphase catalyst. The process involves producing the catalyst by heating a single phase solid catalyst precursor having the formula (NH3)6Cr2−xMxF6 (where x is in the range of 0.1 to 1 and M is at least one metal selected from the group consisting of Al, Sc, V, Fe, Ga and In) to about 400° or less to produce a multiphase composition wherein a phase containing crystalline M fluoride is homogeneously dispersed with a phase containing chromium fluoride. Also disclosed are multiphase catalyst compositions consisting essentially of chromium fluoride and a crystalline fluoride of at least one metal selected from the above group (provided the atom percent of Cr is at least equal to the atom percent of the crystalline fluoride metals). Phases of the crystalline fluorides are homogeneously dispersed with phases of the chromium fluoride. Preparation of homogeneously dispersed multiphase catalyst compositions consisting essentially of fluorides of chromium and crystalline fluorides of at least one other metal selected from the above group (the atom percent Cr being at least equal to the atom percent of the other metal(s)) is also disclosed.
摘要翻译：公开了在多相催化剂存在下改变含有1〜6个碳原子的卤代烃的氟含量的方法。该方法包括通过加热具有式（NH 3）6 C 2-x M x F 6的单相固体催化剂前体（其中x在0.1至1的范围内，M是至少一种选自Al，Sc ，V，Fe，Ga和In）至约400°以下，以产生多相组合物，其中含有结晶M氟化物的相通过含氟化铬的相均匀分散。还公开了基本上由氟化铬和选自上述组中的至少一种金属的结晶氟化物组成的多相催化剂组合物（条件是Cr的原子百分数至少等于结晶氟化物金属的原子百分数）。结晶氟化物的相与氟化铬的相分别均匀分散。制备均匀分散的多相催化剂组合物，其主要由铬的氟化物和选自上述组中的至少一种其它金属的晶体氟化物（原子百分比Cr至少等于其它金属的原子百分比）组成）也是披露

12. 发明授权

US06252099B1 Fluorocarbon manufacturing process 失效
标题翻译：氟碳制造工艺
公开(公告)号：US06252099B1
公开(公告)日：2001-06-26
申请号：US09536349
申请日：2000-03-27
申请人： Munirpallam A. Subramanian
发明人： Munirpallam A. Subramanian
IPC分类号： C07F108
CPC分类号： C07B39/00 , C07C17/10 , C07C21/18
摘要： A process is disclosed for increasing the fluorine content of an olefinic compound of the formula CnHmF2n−m, where n is an integer from 2 to 6 and m is an integer from 1 to 2n. The process involves (a) contacting the olefinic compound with a metal fluoride composition of the formula (AgF)(MF2)x where M is selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof and x is a number from 0 to 1, at a temperature above 200° C. sufficient to transfer F from the metal fluoride composition to the olefinic compound, thereby producing a chemically reduced metal fluoride composition comprising metallic silver; (b) oxidizing the reduced metal fluoride composition from (a) in the presence of HF to regenerate the metal fluoride composition of the formula ((AgF)(MF2)x; and (c) recycling regenerated metal fluoride composition of (b) to (a). Also disclosed are a novel composition of the formula Ag10F8C2; and a process for producing hexafluoroethane which involves heating Ag10F8C2 to a temperature sufficient for its decomposition.
摘要翻译：公开了用于提高式CnHmF 2 n-m的烯属化合物的氟含量的方法，其中n为2-6的整数，m为1至2n的整数。该方法包括（a）使烯烃化合物与式（AgF）（MF 2）x的金属氟化物组合物接触，其中M选自Mn，Fe，Co，Ni，Cu，Zn及其混合物，x 是0至1的数，在高于200℃的温度下，足以将F从金属氟化物组合物转移到烯烃化合物，从而制备包含金属银的化学还原的金属氟化物组合物; （b）在HF存在下使（a）还原的金属氟化物组合物氧化以再生式（（AgF）（MF 2）x）的金属氟化物组合物;和（c）将（b）的再生金属氟化物组合物再循环到（a）。还公开了式Ag10F8C2的新型组合物;以及涉及将Ag10F8C2加热至足以分解的温度的六氟乙烷的制造方法。

13. 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。

14. 发明授权

US6107267A Compositions comprising CF.sub.3 CF.sub.2 CHF.sub.2 and their manufacture 失效
标题翻译：包含CF 3 CF 2 CHF 2的组合物及其制备
公开(公告)号：US6107267A
公开(公告)日：2000-08-22
申请号：US137342
申请日：1998-08-20
申请人： V. N. Mallikarjuna Rao , Allen Capron Sievert , Munirpallam A. Subramanian
发明人： V. N. Mallikarjuna Rao , Allen Capron Sievert , Munirpallam A. Subramanian
IPC分类号： B01D3/36 , C11D7/30 , C11D7/50
CPC分类号： C11D7/5036 , B01D3/36 , C11D7/30
摘要： A process is disclosed for recovering HF from a product mixture including HF and CF.sub.3 CF.sub.2 CHF.sub.2. The process involves (1) distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and CF.sub.3 CF.sub.2 CHF.sub.2 ; and (2) distilling the azeotrope to recover HF as an azeotropic composition containing HF and CF.sub.3 CF.sub.2 CHF.sub.2. Also disclosed are compositions of hydrogen fluoride in combination with an effective amount of CF.sub.3 CF.sub.2 CHF.sub.2 to form an azeotrope or azeotrope-like composition with hydrogen fluoride, (e.g., compositions containing from about 57.1 to 67.2 mole percent CF.sub.3 CF.sub.2 CHF.sub.2).A process for producing certain compositions comprising(a) CF.sub.3 CF.sub.2 CHF.sub.2 and (b) at least one saturated halogenated hydrocarbon and/or ether having the formula:C.sub.n H.sub.2n+2-a-b Cl.sub.a F.sub.b O.sub.cwherein 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 CF.sub.3 CF.sub.2 CF.sub.2) is also disclosed. This process involves (A) combining (i) an azeotropic composition of CF.sub.3 CF.sub.2 CHF.sub.2 and HF 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 azeotropic composition (i) with precursor component (ii), to provide a composition containing components (a) and (b) in the desired ratio. In addition, certain compositions are disclosed which include (a) CF.sub.3 CF.sub.2 CHF.sub.2 and (b) at least two saturated halogenated hydrocarbons and/or ethers having the formula:C.sub.n H.sub.2n+2-a-b Cl.sub.a F.sub.b O.sub.cwherein the molar ratio of said at least one compound to HFC-227ca is between about 1:99 and about 43:57 and c is 1 for at least one of the component (b) compounds.
摘要翻译：公开了从包含HF和CF 3 CF 2 CHF 2的产物混合物中回收HF的方法。该方法包括（1）蒸馏产物混合物以除去所有具有比含有HF和CF 3 CF 2 CHF 2的最低沸点共沸物沸点低的产物; 和（2）蒸馏共沸物以回收HF作为含有HF和CF 3 CF 2 CHF 2的共沸组合物。还公开了氟化氢与有效量的CF 3 CF 2 CHF 2组合以与氟化氢形成共沸物或类共沸组合物的组合物（例如，含有约57.1至67.2摩尔％CF 3 CF 2 CHF 2的组合物）。一种制备某些组合物的方法，其包含（a）CF 3 CF 2 CHF 2和（b）至少一种具有下式的饱和卤代烃和/或醚：n为1至4的整数，a为从 0〜2n + 1，b为1〜2n + 2-a的整数，c为0或1，条件是当c为1时，n为2〜4的整数（（b）成分也不包括CF 3 CF 2 CF 2）。该方法包括：（i）将CF 3 CF 2 CHF 2和HF的共沸组合物与（ii）至少一种氟化前体化合物组合（其中前体组分（ii）是组分（b）的氟化前体）; 和（B）使足够量的来自共沸组合物（i）的HF与前体组分（ii）反应，从而以所需的比例提供含有组分（a）和（b）的组合物。此外，公开了某些组合物，其包括（a）CF 3 CF 2 CHF 2和（b）至少两种具有下式的饱和卤代烃和/或醚：CnH2n + 2-a-bClaFbOc，其中所述至少一种化合物与HFC- 对于至少一种组分（b）化合物，227ca为约1:99至约43:57，c为1。

15. 发明授权

US5559069A Catalysts for halogenated hydrocarbon processing, their precursors and their preparation and use 失效
标题翻译：用于卤代烃加工的催化剂，其前体及其制备和用途
公开(公告)号：US5559069A
公开(公告)日：1996-09-24
申请号：US249765
申请日：1994-05-26
申请人： V. N. Mallikarjuna Rao , Munirpallam A. Subramanian
发明人： V. N. Mallikarjuna Rao , Munirpallam A. Subramanian
IPC分类号： B01J23/00 , B01J27/12 , C01B9/08 , C01G1/06 , C07C17/00 , C07C17/087 , C07C17/20 , C07C17/21 , C07C17/37 , B01J27/138
CPC分类号： C07C17/37 , B01J23/007 , B01J27/12 , C01B9/08 , C01G1/06 , C07C17/00 , C07C17/087 , C07C17/206 , C07C17/21
摘要： A process is disclosed for changing the fluorine content of halogenated hydrocarbons containing from 1 to 6 carbon atoms, in the presence of a multiphase catalyst, which is characterized by preparing certain single phase solid catalyst precursors containing two metal components (e.g., a divalent component of Mn, Co, Zn, Mg and/or Cd and a trivalent component of Al, Ga, Cr and/or V) which have structures that collapse at about 600.degree. C. or less; and producing said catalyst by heating the precursor to produce a multiphase composition wherein a phase containing one of the metal components is homogeneously dispersed with a phase containing the other metal component, and at least when the precursor contains no fluoride, contacting said multiphase composition with a vaporizable fluorine-containing fluorination compound at a temperature of from about 200.degree. C. to 450.degree. C. Also disclosed are single phase fluoride compositions having the formula MM'F.sub.5 (H.sub.2 O).sub.2 wherein M is a divalent component selected from Mn, Co, Zn, Mg and/or Cd and M' is a trivalent component selected from Al, Ga, Cr and/or V (provided that Cr is not more than about 10 atom percent of M'); preparation of certain homogeneously dispersed multiphase catalyst compositions containing fluorides of those divalent and trivalent metal components; and certain homogeneously dispersed multiphase catalyst compositions containing fluorides of those divalent and trivalent metal components (provided that when Co is used another of said divalent elements is also used).
摘要翻译：公开了一种在多相催化剂存在下改变含有1至6个碳原子的卤代烃的氟含量的方法，其特征在于制备含有两种金属组分的某些单相固体催化剂前体（例如， Mn，Co，Zn，Mg和/或Cd以及Al，Ga，Cr和/或V的三价成分），其结构在约600℃以下崩解; 并通过加热前体制备所述催化剂以产生多相组合物，其中含有一种金属组分的相与含有其它金属组分的相均匀地分散，并且至少当前体不含氟化物时，使所述多相组合物与可蒸发的含氟氟化化合物在约200℃至450℃的温度下。还公开了具有式MM'F5（H 2 O）2的单相氟化物组合物，其中M是选自Mn，Co， Zn，Mg和/或Cd，M'是选自Al，Ga，Cr和/或V的三价成分（条件是Cr不大于M'的约10原子％）; 制备含有这些二价和三价金属成分的氟化物的某些均匀分散的多相催化剂组合物; 以及含有这些二价和三价金属组分的氟化物的某些均匀分散的多相催化剂组合物（条件是当使用Co时，也使用另一种所述二价元素）。

16. 发明授权

US07074973B2 Process for the preparation of 1,1,1,2,2-pentafluoroethane 失效
标题翻译：制备1,1,1,2,2-五氟乙烷的方法
公开(公告)号：US07074973B2
公开(公告)日：2006-07-11
申请号：US10523227
申请日：2003-08-21
申请人： Mario J. Nappa , Velliyur Nott Mallikarjuna Rao , H. David Rosenfeld , Shekhar Subramoney , Munirpallam A. Subramanian , Allen C. Sievert
发明人： Mario J. Nappa , Velliyur Nott Mallikarjuna Rao , H. David Rosenfeld , Shekhar Subramoney , Munirpallam A. Subramanian , Allen C. Sievert
IPC分类号： C07C17/00
CPC分类号： C07C17/206 , B01J23/864 , B01J35/002 , B01J37/0236 , B01J37/03 , B01J37/26 , C07C17/21 , Y02P20/582 , C07C19/08
摘要： A process for the preparation of pentafluoroethane is disclosed which involves contacting a mixture comprising hydrogen fluoride and at least one starting material selected from haloethanes of the formula CX3CHX2 and haloethanes of the formula CX2═CX2, where each X is independently selected from the group consisting of F and Cl (provided that no more than four of X are F), with a fluorination catalyst in a reaction zone to produce a product mixture comprising HF, HCl, pentafluoroethane, underfluorinated halogenated hydrocarbon intermediates and less than 0.2 mole percent chloropentafluoroethane based on the total moles of halogenated hydrocarbons in the product mixture. The process is characterized by the fluorination catalyst comprising (i) a crystalline cobalt-substituted alpha-chromium oxide where from about 0.05 atom % to about 6 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by trivalent cobalt (Co+3) and/or (ii) a fluorinated crystalline oxide of (i).
摘要翻译：公开了一种制备五氟乙烷的方法，其涉及将包含氟化氢和至少一种选自式CX 3 CHX 2 2的卤代乙烷的起始物质和式CX 2 -CX 2 X，其中每个X独立地选自F和Cl（条件是不超过四个X为F），与反应区中的氟化催化剂，以产生基于产物混合物中卤代烃总摩尔数的HF，HCl，五氟乙烷，过氟化卤代烃中间体和小于0.2摩尔％氯五氟乙烷的产物混合物。该方法的特征在于氟化催化剂，其包含（i）结晶钴取代的α-氧化铬，其中α-氧化铬晶格中约0.05原子％至约6原子％的铬原子被三价钴（Co （ⅰ））和/或（ⅱ）氟化结晶氧化物。

17. 发明授权

US06727289B2 Boron promoted catalysts and fischer-tropsch processes 失效
标题翻译：硼促进了催化剂和费 - 托法
公开(公告)号：US06727289B2
公开(公告)日：2004-04-27
申请号：US10047231
申请日：2002-01-14
申请人： Olga Ionkina , Wenchun Chao , Munirpallam A. Subramanian , Leo E. Manzer , Kamel M. Makar , Ajoy P. Raje
发明人： Olga Ionkina , Wenchun Chao , Munirpallam A. Subramanian , Leo E. Manzer , Kamel M. Makar , Ajoy P. Raje
IPC分类号： C07C2700
CPC分类号： C10G2/332 , B01J21/02 , B01J23/74 , B01J23/75 , B01J23/89 , B01J23/8913 , C10G2/333
摘要： A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process includes at least a Fischer-Tropsch metal and boron. The Fischer-Tropsch metal preferably includes cobalt and optionally ruthenium or platinum. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.
摘要翻译：公开了一种用于生产烃的方法。该方法包括将包含氢气和一氧化碳的进料流与催化剂接触，所述反应区域保持在有效产生包含烃的流出物流的转化促进条件下。根据本发明，用于该方法的催化剂至少包括费 - 托金属和硼。费 - 托金属优选包括钴和任选的钌或铂。催化剂还可以包含选自包括二氧化硅，二氧化钛，二氧化钛/氧化铝，氧化锆，氧化铝，氟化铝和氟化氧化铝的载体材料。

18. 发明授权

US06368997B2 Fischer-Tropsch processes and catalysts using fluorided supports 失效
标题翻译：使用氟化载体的费 - 托工艺和催化剂
公开(公告)号：US06368997B2
公开(公告)日：2002-04-09
申请号：US09314921
申请日：1999-05-19
申请人： Norman Herron , Leo E. Manzer , Munirpallam A. Subramanian
发明人： Norman Herron , Leo E. Manzer , Munirpallam A. Subramanian
IPC分类号： C07C2700
CPC分类号： C10G2/331 , B01J23/8896 , B01J27/12 , B01J27/125 , B01J27/128 , B01J37/0201 , C07C1/0435 , C07C1/044 , C07C1/0445 , C07C2521/02 , C07C2521/04 , C07C2523/34 , C07C2523/36 , C07C2523/46 , C07C2523/745 , C07C2523/75 , C07C2523/755 , C07C2523/889 , C07C2527/12 , C07C2527/125 , C07C2527/14 , C10G2/332
摘要： A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention the catalyst used in the process includes at least one catalytic metal selected for Fischer-Tropsch reactions (e.g., iron, cobalt, nickel and/or ruthenium); and a support selected from the group consisting of fluorides and fluorided oxides of at least one element selected from the elements of Groups 2 through 15 of the periodic table of elements and elements with atomic numbers 58 through 71 (e.g., zinc, magnesium, calcium, barium, chromium, yttrium, lanthanum, samarium, europium and/or dysprosium).
摘要翻译：公开了一种用于生产烃的方法。该方法包括将包含氢气和一氧化碳的进料流与催化剂接触，所述反应区域保持在有效产生包含烃的流出物流的转化促进条件下。根据本发明，用于该方法的催化剂包括至少一种选择用于费 - 托反应的催化金属（例如铁，钴，镍和/或钌）; 选自氟化物和选自元素周期表第2〜15族元素中的至少一种元素的氟化物的载体，原子序数为58〜71的元素（例如锌，镁，钙，钡，铬，钇，镧，钐，铕和/或镝）。

19. 发明授权

US6166273A Processes for fluorinating aromatic ring compounds 失效
标题翻译：芳环化合物氟化方法
公开(公告)号：US6166273A
公开(公告)日：2000-12-26
申请号：US360958
申请日：1999-07-27
申请人： Munirpallam A. Subramanian
发明人： Munirpallam A. Subramanian
IPC分类号： C07B39/00 , C07C17/12 , C07C25/13 , C07C63/04 , C07C69/76 , C07C233/00 , C07C255/00
CPC分类号： C07B39/00 , C07C17/12 , C07C25/13
摘要： A process is provided for increasing the fluorine content of benzene or pyridine rings which are optionally substituted with from 1 to 3 inert substituents. The process involves (a) contacting the ring with a metal fluoride composition comprising cupric fluoride (CuF.sub.2) at a temperature above 250.degree. C. sufficient to transfer F from cupric fluoride to the optionally substituted ring, thereby chemically reducing the metal fluoride composition; (b) oxidizing the reduced metal fluoride composition from (a) in the presence of HF to regenerate a metal fluoride composition comprising cupric fluoride; and (c) employing regenerated metal fluoride composition of (b) in (a).
摘要翻译：提供一种提高苯或吡啶环的氟含量的方法，其中任选被1至3个惰性取代基取代。该方法包括（a）在高于250℃的温度下使环与包含氟化铜（CuF 2）的金属氟化物组合物接触，足以将F从氟化铜转移到任选取代的环，从而化学还原金属氟化物组合物; （b）在HF存在下使（a）的还原金属氟化物组合物氧化以再生包含氟化铜的金属氟化物组合物; 和（c）在（a）中使用（b）的再生金属氟化物组合物。

20. 发明授权

US5880315A Catalytic manufacture of vinyl fluoride 失效
标题翻译：催化制造氟乙烯
公开(公告)号：US5880315A
公开(公告)日：1999-03-09
申请号：US964445
申请日：1997-11-04
申请人： V.N. Mallikarjuna Rao , Munirpallam A. Subramanian
发明人： V.N. Mallikarjuna Rao , Munirpallam A. Subramanian
IPC分类号： B01J27/125 , B01J27/138 , C07C17/25 , C01C17/25
CPC分类号： B01J27/138 , B01J27/125 , C07C17/25 , Y02P20/582
摘要： A process for the manufacture of vinyl fluoride (i.e., CH.sub.2 .dbd.CHF, VF or 1141) from 1,1-difluoroethane (i.e., CH.sub.3 CHF.sub.2, F152a or HFC-152a) is disclosed which involves contacting the 1,1-difluoroethane at an elevated temperature (200.degree. C.-400.degree. C.) with a multiphase catalyst composition consisting essentially of (a) fluorides of at least one divalent metal selected from magnesium and zinc, and (b) fluorides of trivalent aluminum, in which phases of the divalent fluorides are homogeneously dispersed with phases of the trivalent fluorides.
摘要翻译：公开了从1,1-二氟乙烷（即CH 3 CHF 2，F 152α或HFC-152a）制备氟乙烯（即CH 2 = CHF，VF或1141）的方法，其涉及使1,1-二氟乙烷在升高的温度（200℃-400℃），其中多相催化剂组合物主要由（a）至少一种选自镁和锌的二价金属的氟化物和（b）三价铝的氟化物组成，其中，二价氟化物与三价氟化物的相均匀分散。

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