EP 2556027 A1 20130213 - IMPROVED SYNTHETIC RUTILE PROCESS B
Title (en)
IMPROVED SYNTHETIC RUTILE PROCESS B
Title (de)
VERBESSERTES VERFAHREN B FÜR SYNTHETISCHES RUTIL
Title (fr)
PROCÉDÉ B PERFECTIONNÉ POUR LA PRODUCTION DE RUTILE SYNTHÉTIQUE
Publication
Application
Priority
- AU 2010901440 A 20100406
- AU 2011000391 W 20110406
Abstract (en)
[origin: WO2011123889A1] A process for recovering titanium as synthetic rutile from a titaniferous ore, for example a secondary ilmenite, includes the steps of treating the ore in a reducing atmosphere at elevated temperature above 1075°C in the presence of a carbonaceous reductant whereby to convert the ilmenite to reduced ilmenite in which iron oxides in the ilmenite have been reduced to metallic iron, and separating out the metallic iron so as to obtain a synthetic rutile product., The carbonaceous reductant comprises a coal selected for a moisture content below 40%, a volatiles content greater than 30%, ash content below 10%, and a gasification reactivity that results in an increased rate of reduction of iron oxides and titanium species effective to achieve a TiO2 content of 90% or greater in the synthetic rutile product.
IPC 8 full level
C01G 23/047 (2006.01)
CPC (source: EP US)
C01G 23/047 (2013.01 - EP US); C22B 5/10 (2013.01 - EP US); C22B 34/1209 (2013.01 - EP US)
Citation (search report)
See references of WO 2011123889A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011123889 A1 20111013; AU 2011238420 A1 20121101; AU 2011238420 B2 20130328; CN 103209926 A 20130717; EP 2556027 A1 20130213; US 2013022521 A1 20130124
DOCDB simple family (application)
AU 2011000391 W 20110406; AU 2011238420 A 20110406; CN 201180027804 A 20110406; EP 11764946 A 20110406; US 201113639572 A 20110406