EP 0950122 A1 19991020 - METHOD FOR MICROWAVE INDUCED OXIDATION OF SULPHIDIC ORE MATERIAL IN FLUIDIZED BED WITHOUT SULPHUR DIOXIDE EMISSIONS
Title (en)
METHOD FOR MICROWAVE INDUCED OXIDATION OF SULPHIDIC ORE MATERIAL IN FLUIDIZED BED WITHOUT SULPHUR DIOXIDE EMISSIONS
Title (de)
VERFAHREN ZUR WIRBELSCHICHTRÖSTUNG SULFIDISCHER ERZMATERIALIEN OHNE SCHWEFELDIOXIDEMISSIONEN UNTER VERWENDUNG VON MIKROWELLENHEIZUNG
Title (fr)
PROCEDE D'OXYDATION PAR MICRO-ONDE D'UN MINERAI SULFURE DANS UN LIT FLUIDISE, SANS EMISSION DE DIOXYDE DE SOUFRE
Publication
Application
Priority
- CA 9700561 W 19970808
- US 70370396 A 19960827
- US 89710397 A 19970718
Abstract (en)
[origin: WO9808989A1] The present invention relates to a method for processing pyrite minerals, using a microwave energized fluidizing reactor, under temperature conditions that provide reaction products that are relatively free of SO2 emissions. The controlled temperature conditions at which the reaction products are hematite and elemental sulphur may be achieved by recirculating and cooling a portion of the outgoing fluidizing gas and by adjusting the microwave energy supplied to the fluidized bed.
IPC 1-7
IPC 8 full level
C22B 1/02 (2006.01); C22B 1/10 (2006.01); C22B 11/02 (2006.01); C22B 15/00 (2006.01)
CPC (source: EP)
C22B 1/02 (2013.01); C22B 1/10 (2013.01); C22B 11/02 (2013.01); C22B 15/0015 (2013.01); B01J 2208/00044 (2013.01)
Citation (search report)
See references of WO 9808989A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9808989 A1 19980305; AU 3843997 A 19980319; AU 721221 B2 20000629; CA 2263497 A1 19980305; EP 0950122 A1 19991020
DOCDB simple family (application)
CA 9700561 W 19970808; AU 3843997 A 19970808; CA 2263497 A 19970808; EP 97935397 A 19970808