公开(公告)号：EP1966400B1

公开(公告)日：2009-12-09

申请号：EP06830774.3

申请日：2006-12-21

Applicant: BASF SE

Inventor： SCHUBERT, Olga ,  URTEL, Heiko ,  HESSE, Michael ,  SESING, Martin ,  HOFMANN, Claus ,  KRISTALIS, Iris

IPC: C22B11/00 ,  C22B7/00 ,  C22B3/10 ,  C01B7/04 ,  B01J23/46 ,  B01J23/96

CPC classification number: C22B11/048 ,  B01J23/462 ,  B01J23/96 ,  B01J38/10 ,  B01J38/68 ,  C01B7/04 ,  C22B3/10 ,  C22B7/009 ,  Y02P10/214 ,  Y02P10/234 ,  Y02P20/584

公开(公告)号：EP1966400A1

公开(公告)日：2008-09-10

申请号：EP06830774.3

申请日：2006-12-21

Applicant: BASF SE

Inventor： SCHUBERT, Olga ,  URTEL, Heiko ,  HESSE, Michael ,  SESING, Martin ,  HOFMANN, Claus ,  KRISTALIS, Iris

IPC: C22B11/00 ,  C22B7/00 ,  C22B3/10 ,  C01B7/04 ,  B01J23/46 ,  B01J23/96

CPC classification number: C22B11/048 ,  B01J23/462 ,  B01J23/96 ,  B01J38/10 ,  B01J38/68 ,  C01B7/04 ,  C22B3/10 ,  C22B7/009 ,  Y02P10/214 ,  Y02P10/234 ,  Y02P20/584

Abstract: The invention relates to a method for recovering ruthenium from a used ruthenium-containing catalyst which contains ruthenium as ruthenium oxide on a carrier material that is difficult to dissolve in mineral acid. Said method comprises the following steps: a) the catalyst containing ruthenium oxide is treated in a hydrogen flow such that the ruthenium oxide provided on the carrier is reduced to metallic ruthenium; b) the reduced catalyst from step (a) containing metallic ruthenium on the carrier material is treated with hydrochloric acid in the presence of an oxygen-containing gas such that the metallic ruthenium provided on the carrier is dissolved as ruthenium(III) chloride and is thus recovered as a ruthenium(III) chloride solution; c) the ruthenium(III) chloride solution from step (b) is further reprocessed if necessary.