EP 1590494 A1 20051102 - A METHOD FOR INCREASING THE CHROME TO IRON RATIO OF CHROMITES PRODUCTS
Title (en)
A METHOD FOR INCREASING THE CHROME TO IRON RATIO OF CHROMITES PRODUCTS
Title (de)
VERFAHREN ZUR ERHÖHUNG DES CHROM/EISEN-VERHÄLTNISSES VON CHROMITPRODUKTEN
Title (fr)
PROCEDE PERMETTANT D'ACCROITRE LE RAPPORT CHROME-FER DES PRODUITS CHROMITES
Publication
Application
Priority
- CA 2004000165 W 20040206
- CA 2418546 A 20030206
- US 44543703 P 20030207
Abstract (en)
[origin: WO2004070066A1] A method for increasing the chrome to iron ratio of a chromite product selected from the group consisting of ore and ore concentrate comprising the steps of mixing the chromite product with at least one salt so as to produce a mixture, whereby the concentration of salt in the mixture is selected to induce the selective chlorination of iron; and chlorinating the mixture in the presence of CO at a temperature sufficient to induce the formation of a thin film of a melt around the chromite product and at a temperature able to promote the selective chlorination of iron, whereby an iron impoverished chromite product is yielded having an increased chromite to iron ratio as compared to that of the chromite product.
IPC 1-7
IPC 8 full level
C22B 1/08 (2006.01); C22B 34/32 (2006.01); C22B 34/12 (2006.01)
CPC (source: EP)
C22B 1/08 (2013.01); C22B 34/32 (2013.01); C22B 34/1209 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004070066 A1 20040819; AT E335861 T1 20060915; AU 2004209574 A1 20040819; DE 602004001860 D1 20060921; EP 1590494 A1 20051102; EP 1590494 B1 20060809
DOCDB simple family (application)
CA 2004000165 W 20040206; AT 04708695 T 20040206; AU 2004209574 A 20040206; DE 602004001860 T 20040206; EP 04708695 A 20040206