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1. (WO1999013970) METHOD FOR RECYCLING SPENT CATALYSTS

Pub. No.:    WO/1999/013970    International Application No.:    PCT/EP1998/005598
Publication Date: Mar 25, 1999 International Filing Date: Sep 3, 1998
IPC: B01D 53/86
Applicants: SIEMENS AKTIENGESELLSCHAFT
WITZEL, Frank
PAJONK, Günther
FISCHER, Stefan
Inventors: WITZEL, Frank
PAJONK, Günther
FISCHER, Stefan
Title: METHOD FOR RECYCLING SPENT CATALYSTS
Abstract:
The invention concerns spent catalysts (12) which are added, in crushed form, to burnt gases of a technical installation, and whereof the residual activity is used for decomposing dioxins and/or furans. Said catalysts are then extracted from the burnt gases and integrated in a slag (26). Said method provides an economical and efficient recycling, as well as ensuring reliable elimination of spent catalysts.