公开(公告)号：WO1997037955A1

公开(公告)日：1997-10-16

申请号：PCT/US1997005656

申请日：1997-04-04

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  YATES, Stephen, Frederic ,  GAITA, Romulus

IPC: C07C17/395

CPC classification number: C07C17/395 ,  C07C19/08

Abstract: 1-Chloro-3,3,3-trifluoropropene (R-1233zd) or other olefin impurities are removed from 1,1,1,3,3-pentafluoropropane (R-245fa) by contacting the R-245fa in the liquid or vapor phase with chlorine in the presence of ultraviolet light providing an exposure of at least about 0.02 watts-hour/kg.

Abstract translation: 通过使液体或蒸气中的R-245fa接触，从1,1,1,3,3-五氟丙烷（R-245fa）中除去1-氯-3,3,3-三氟丙烯（R-1233zd）或其它烯烃杂质 在存在紫外线时提供至少约0.02瓦特/千克的暴露的氯。

公开(公告)号：WO1998027008A1

公开(公告)日：1998-06-25

申请号：PCT/US1997022588

申请日：1997-12-10

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  YATES, Stephen, Frederic ,  GAITA, Romulus ,  RAMACHANDRA, Amar ,  MORRELL, Robert

IPC: C01B17/45

CPC classification number: C01B17/453 ,  B01D53/02 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2256/10 ,  B01D2256/12 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2257/2027 ,  B01D2257/30 ,  B01D2257/502 ,  B01D2257/504 ,  Y02C10/08 ,  Y02C20/30 ,  Y02P20/151 ,  Y02P20/152

Abstract: The present invention relates to a process for recovering sulfur hexafluoride ("SF6"). More specifically, the invention provides a pressure swing adsorption - desorption process for recovering SF6 from a gas stream using zeolites, activated carbons, or silicalites to adsorb the SF6.

Abstract translation: 本发明涉及一种回收六氟化硫（“SF6”）的方法。 更具体地说，本发明提供了使用沸石，活性炭或硅沸石从气流中回收SF 6以吸附SF 6的变压吸附 - 解吸方法。

公开(公告)号：EP1140957A1

公开(公告)日：2001-10-10

申请号：EP99966490.7

申请日：1999-12-21

Applicant: AlliedSignal Inc.

Inventor： SWEDO, Raymond, J. ,  KOLJACK, Mathias, P. ,  GAITA, Romulus ,  YATES, Stephen, F. ,  WU, Charles, Chao

IPC: C07H1/08

CPC classification number: C07H1/08 ,  C07H19/06 ,  C07H19/16

Abstract: A process for the purification of nucleosides, and more particularly to a selective solvent extraction method for purifying protected nucleosides. In the purification process, solid particles of protected nucleosides are selectively washed to remove undesirable polar and/or non-polar impurities, while leaving the solid particles substantially undissolved.

公开(公告)号：EP0946410A1

公开(公告)日：1999-10-06

申请号：EP97950910.0

申请日：1997-12-10

Applicant: AlliedSignal Inc.

Inventor： YATES, Stephen, Frederic ,  GAITA, Romulus ,  RAMACHANDRA, Amar ,  MORRELL, Robert

IPC: C01B17 ,  B01D53

CPC classification number: C01B17/453 ,  B01D53/02 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2256/10 ,  B01D2256/12 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2257/2027 ,  B01D2257/30 ,  B01D2257/502 ,  B01D2257/504 ,  Y02C10/08 ,  Y02C20/30 ,  Y02P20/151 ,  Y02P20/152

Abstract: The present invention relates to a process for recovering sulfur hexafluoride ('SF6'). More specifically, the invention provides a pressure swing adsorption - desorption process for recovering SF6 from a gas stream using zeolites, activated carbons, or silicalites to adsorb the SF6.

公开(公告)号：EP0902776A1

公开(公告)日：1999-03-24

申请号：EP97917872.0

申请日：1997-04-04

Applicant: AlliedSignal Inc.

Inventor： YATES, Stephen, Frederic ,  GAITA, Romulus

IPC: C07C17 ,  C07C19

CPC classification number: C07C17/395 ,  C07C19/08

Abstract: 1-Chloro-3,3,3-trifluoropropene (R-1233zd) or other olefin impurities are removed from 1,1,1,3,3-pentafluoropropane (R-245fa) by contacting the R-245fa in the liquid or vapor phase with chlorine in the presence of ultraviolet light providing an exposure of at least about 0.02 watts-hour/kg.