Title:
PROCESS FOR PURIFYING WASTE FURNACE GASES AND FOR USING THE RESULTANT FILTER DUST
Document Type and Number:
WIPO Patent Application WO1995027555
Kind Code:
A3
Abstract:
The invention concerns a process for purifying waste furnace gases and for using the resultant filter residue. Alkaline aggregates, containing sodium or potassium as the cation, are added to the waste furnace gas. In a subsequent stage, dusts and droplets are filtered out of the waste furnace gas. The resultant filter residue is added to the cover salt (7) necessary when melting secondary aluminium.
Inventors:
DUCHACZEK HUBERT
WACHTER REINHARD
WAGNER JOSEF
WACHTER REINHARD
WAGNER JOSEF
Application Number:
PCT/EP1995/001244
Publication Date:
November 09, 1995
Filing Date:
April 05, 1995
Export Citation:
Assignee:
AUSTRIA METALL (AT)
International Classes:
B01D53/68; B01D53/70; B01D53/96; C22B7/02; C22B21/00; (IPC1-7): B01D53/70; B01D53/96; A62D3/00
Foreign References:
| US4065271A | 1977-12-27 | |||
| DE4109991C1 | 1992-06-25 | |||
| DE4221239C1 | 1993-07-22 | |||
| US4368070A | 1983-01-11 | |||
| FR2114417A5 | 1972-06-30 |
Other References:
DATABASE WPI Section Ch Week 9209, Derwent World Patents Index; Class E34, AN 92-065595
DATABASE WPI Section Ch Week 8246, Derwent World Patents Index; Class E36, AN 82-99414E
DATABASE WPI Section Ch Week 8246, Derwent World Patents Index; Class E36, AN 82-99414E
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