公开(公告)号：DE59107113D1

公开(公告)日：1996-02-01

申请号：DE59107113

申请日：1991-09-10

Applicant: HOECHST AG

Inventor： HOPP PETER DR ,  BEHME KLAUS-JUERGEN ,  DEGER HANS-MATTHIAS DR

IPC: C07B63/04 ,  C07C17/42 ,  C07C19/12 ,  C09K5/00 ,  C09K5/04 ,  C10M127/06 ,  C10N40/30

公开(公告)号：DE59303465D1

公开(公告)日：1996-09-26

申请号：DE59303465

申请日：1993-03-22

Applicant: HOECHST AG

Inventor： HOPP PETER DR ,  WIRTH UWE DR

IPC: B01J21/18 ,  B01J21/20 ,  B01J38/02 ,  C01B31/08 ,  C07B61/00 ,  C07C17/08 ,  C07C17/087 ,  C07C19/08

Abstract: The invention relates to a process for the reactivation of an activated charcoal catalyst employed in the preparation of 1,1,1,2,3,3,3-heptafluoropropane (R 227) in which the catalyst is heated to from 450 DEG to 900 DEG C. in a stream of inert gas or under reduced pressure.

公开(公告)号：DE19510159A1

公开(公告)日：1996-09-26

申请号：DE19510159

申请日：1995-03-21

Applicant: HOECHST AG

Inventor： JANSEN ROLF-MICHAEL DR ,  HOPP PETER DR

IPC: C07C17/395 ,  C07C17/389 ,  C07C19/08 ,  C07C17/42

Abstract: Removal of olefin impurities from 2H-heptafluoropropane (R 227) comprises passing it in the gas phase over aluminium oxide at -20 to 100 degrees C.

公开(公告)号：GR3017585T3

公开(公告)日：1995-12-31

申请号：GR950402698

申请日：1995-09-29

Applicant: HOECHST AG

Inventor： HOPP PETER DR ,  JANSEN ROLF-MICHAEL DR

IPC: B01J31/02 ,  C07C17/00 ,  C07C17/38 ,  C07C17/395 ,  C07C19/08 ,  C07C19/12 ,  C07C19/14

公开(公告)号：AT127113T

公开(公告)日：1995-09-15

申请号：AT91121928

申请日：1991-12-20

Applicant: HOECHST AG

Inventor： HOPP PETER DR ,  JANSEN ROLF-MICHAEL DR

IPC: B01J31/02 ,  C07C17/00 ,  C07C17/38 ,  C07C17/395 ,  C07C19/08 ,  C07C19/12 ,  C07C19/14

公开(公告)号：DE4137782A1

公开(公告)日：1993-05-19

申请号：DE4137782

申请日：1991-11-16

Applicant: HOECHST AG

Inventor： JANSEN ROLF-MICHAEL DR ,  PFAHLER GERHARD DR ,  HOPP PETER DR

IPC: C07C17/42

Abstract: Stabilisers consist of mixt.of at least one of CF3-CHCl2 (R 123) and CClF2-CHClF (R 123a) and, as stabilisers, at least one of dioctadecyl-disulphide (I), bis-(3,3-bis-(4'-hydroxy-3'-tert. butylphenol)butaneacid)-glycol ester (II), and tris-(2-tert.butyl-4-thio (2'-methyl-4'-hydroxy-5-' tert.butyl) phenyl-5-)phenylphosphite (III). The mixt. contains 0.01-10 wt.%, pref. 0.3-1 wt.% of the stabilisers. USE/ADVANTAGE - Stabilisation against reaction with cold machine oil used as lubricant in refrigeration uses. The stabilisers are not spontaneously inflammable, do not tend to explode, and are not sensitive to air.