公开(公告)号：US5118888A

公开(公告)日：1992-06-02

申请号：US528896

申请日：1990-05-29

申请人： Claudio Gervasutti ,  Giorgio Guglielmo ,  Luigi Marangoni

发明人： Claudio Gervasutti ,  Giorgio Guglielmo ,  Luigi Marangoni

IPC分类号： B01J23/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/23 ,  C07C21/18 ,  C07C67/00

CPC分类号： C07C17/23

摘要： Process for the preparation of 1,2-difluoro-ethylene and 1-chloro-1,2-difluoroethylene by catalytic hydrogenation of 1,2-dichloro-difluoro-ethylene.

摘要翻译： 通过1,2-二氯 - 二氟 - 乙烯的催化氢化制备1,2-二氟 - 乙烯和1-氯-1,2-二氟乙烯的方法。

公开(公告)号：US4937391A

公开(公告)日：1990-06-26

申请号：US373184

申请日：1989-06-29

申请人： Claudio Gervasutti

发明人： Claudio Gervasutti

IPC分类号： B01J23/72 ,  C07B61/00 ,  C07C41/00 ,  C07C41/24 ,  C07C43/12 ,  C07C43/17 ,  C07C67/00

CPC分类号： C07C41/24

摘要： Preparing perfluoro-(2-bromoethyl-vinyl-ether)CBrF.sub.2 --CF.sub.2 --O--CF.dbd.CF.sub.2by the dechlorination of 2-bromo-1',2'-dichloro-perfluorodiethyl-etherCBrF.sub.2 --CF.sub.2 --O--CClF--CClF.sub.2in the presence of copper and a solvent constituted by an aliphatic amide of the formula ##STR1## wherein R.sub.1 and R.sub.2 are either H or (C.sub.1 -C.sub.2)-alkyl groups andR.sub.3 is a (C.sub.1 -C.sub.2)-alkyl group,at temperatures within the range of from 100.degree. up to 160.degree. C.

公开(公告)号：US5093523A

公开(公告)日：1992-03-03

申请号：US515088

申请日：1990-04-26

申请人： Claudio Gervasutti

发明人： Claudio Gervasutti

IPC分类号： B01J27/053 ,  C07B61/00 ,  C07C51/58 ,  C07C55/36

CPC分类号： C07C51/58

摘要： A perfluorosuccinylfluoride is prepared by the reaction of a gaseous mixture of 1,4-dibromoperfluorobutane with SO.sub.3 in oleum with at least 65% of free SO.sub.3 containing a catalyst comprising, besides mono- and bi-valent mercury sulphates, B.sub.2 O.sub.3 in quantities of from 0.3% to 8% by weight with respect to the free SO.sub.3 present in the "oleum" during course of the reaction.

公开(公告)号：US4876405A

公开(公告)日：1989-10-24

申请号：US72641

申请日：1987-07-13

申请人： Claudio Gervasutti

发明人： Claudio Gervasutti

IPC分类号： C07B61/00 ,  B01J23/26 ,  B01J23/40 ,  B01J23/72 ,  B01J23/74 ,  C07C17/00 ,  C07C17/23 ,  C07C21/18 ,  C07C67/00

CPC分类号： C07C17/23

摘要： A process for preparing fluoroethylenes and chlorofluoroethylenes starting from chlorofluoroethanes and hydrogen, carried out in gas phase at a temperature ranging from 150.degree. to 600.degree. C., in the presence of a hydrogenation catalyst, wherein the chlorofluoroethanes have at least one chlorine atom on each carbon atom, and the catalyst is selected preferably from palladium, nickel, chromium, cobalt, platinum, copper and mixtures thereof, and it is utilized either as such or inert materials.

公开(公告)号：US5059729A

公开(公告)日：1991-10-22

申请号：US680620

申请日：1991-04-02

申请人： Claudio Gervasutti

发明人： Claudio Gervasutti

IPC分类号： C07B61/00 ,  B01J23/44 ,  C07C17/00 ,  C07C17/23 ,  C07C19/08 ,  C07C67/00

CPC分类号： C07C17/00

摘要： A process for preparing 1,2-difluoroethane or 1,1,2-trifluoroethane by hydrogenation of 1,2-dichlorodifluoroethylene or 1-chlorotrifluoroethylene in the presence of a hydrogenation catalyst. The process is conducted in the gas phase at a temperature ranging from 100.degree. C. to 220.degree. C., the molar ratios between H.sub.2 and olefin being higher than 3.

公开(公告)号：US4754085A

公开(公告)日：1988-06-28

申请号：US920595

申请日：1986-10-20

申请人： Claudio Gervasutti ,  Lino Conte ,  Gian Paolo Gambaretto

发明人： Claudio Gervasutti ,  Lino Conte ,  Gian Paolo Gambaretto

IPC分类号： C07C17/04 ,  C07C17/00 ,  C07C17/02 ,  C07C19/08 ,  C07C19/12 ,  C07C19/14 ,  C07C41/22 ,  C07C67/00 ,  C07C19/02 ,  C07C19/045

CPC分类号： C07C41/22 ,  C07C17/02

摘要： Process for the preparation of hydro(halo)fluoroalkanes by direct fluorination in liquid phase with elemental fluorine at low temperature (under 0.degree. C.) of the corresponding hydro(halo)=alkenes.

摘要翻译： 通过在相应的氢（卤素）=烯烃的低温（0℃）下用元素氟在液相中直接氟化来制备氢（卤代）氟代烷烃的方法。