公开(公告)号：US5750808A

公开(公告)日：1998-05-12

申请号：US677063

申请日：1996-07-09

申请人： Wendell Richard Cassel ,  David Richard Corbin ,  V.N. Mallikarjuna Rao

发明人： Wendell Richard Cassel ,  David Richard Corbin ,  V.N. Mallikarjuna Rao

IPC分类号： C07C17/25 ,  C07C17/269 ,  C07C17/395 ,  C07C17/00

CPC分类号： C07C17/395 ,  C07C17/25 ,  C07C17/269

摘要： A process is disclosed for the dehydrohalogenation of partially halogenated ethanes of the formula C.sub.2 H.sub.a Cl.sub.b F.sub.c where a is an integer from 1 to 4, b is an integer from 0 to 3 and c is an integer form 1 to 5 to produce olefins selected from the group consisting of C.sub.2 H.sub.a-1 Cl.sub.b-1 F.sub.c and C.sub.2 H.sub.a-1 Cl.sub.b F.sub.c-1. The process involves contacting C.sub.2 H.sub.a Cl.sub.b F.sub.c with a zeolite selected from the group consisting of NaX and CsY. Selective reaction of one isomer from a mixture of two isomers is disclosed as a means for purification of the relatively unreactive isomer. Also disclosed is a process for producing perfluorocyclobutane which involves contacting CHF.sub.2 CClF.sub.2 with such zeolites.

摘要翻译： 公开了用于式C 2 H a Cl b F c的部分卤代乙烷的脱卤化氢的方法，其中a是1至4的整数，b是0至3的整数，c是1至5的整数，以产生选自以下的烯烃： 的C2Ha-1Clb-1Fc和C2Ha-1ClbFc-1。 该方法包括使C 2 H a Cl b F cc与选自NaX和CsY的沸石接触。 公开了一种异构体从两种异构体的混合物的选择性反应，作为相对不反应异构体的纯化手段。 还公开了一种制备全氟环丁烷的方法，其涉及使CHF 2 CClF 2与这种沸石接触。

公开(公告)号：US5892135A

公开(公告)日：1999-04-06

申请号：US911118

申请日：1997-08-14

申请人： William H. Manogue ,  V.N. Mallikarjuna Rao

发明人： William H. Manogue ,  V.N. Mallikarjuna Rao

IPC分类号： B01J27/138 ,  C07C17/00 ,  C07C17/23 ,  C07C17/25

CPC分类号： C07C17/00 ,  B01J27/138 ,  C07C17/23

摘要： A process for the production of trifluoroethylene (i.e., CF.sub.2 =CHF or HFC-1123) is disclosed. The process involves contacting (in the vapor phase) at least one halogenated ethane of the formula CF.sub.3 CClFX (where X is H, Cl or F) with hydrogen in the presence of a catalyst including at least one component selected from elemental metals, metal oxides, metal halides and metal oxyhalides. The metal of the component is ruthenium, copper, nickel, and/or chromium and the halogen of the halides and the oxyhalides is fluorine and/or chlorine.

摘要翻译： 公开了制备三氟乙烯（即CF 2 = CHF或HFC-1123）的方法。 该方法包括在包含至少一种选自元素金属，金属氧化物的组分的催化剂存在下使（CF 3 CClF X）（其中X为H，Cl或F）的至少一种卤化乙烷与氢气接触（在气相中） 金属卤化物和金属卤氧化物。 组分的金属是钌，铜，镍和/或铬，卤化物和卤氧化物的卤素是氟和/或氯。

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。