Abstract
A kinetic study of the leaching of ilmenite paste (resulting from ilmenite treatment by KOH) by sulfuric and oxalic acids has been investigated. The effects of the reaction agitation speed, ilmenite paste particle size, acid concentration, acid/paste mass ratio and temperature on titanium recovery percent from the KOH decomposed ilmenite are reported. The leaching rates are significantly influenced by the reaction temperature and acid concentration. The observed effects of the relevant operating variables on the leaching rates are consistent with a kinetic model for chemical control. The apparent activation energy for the leaching of titanium has been calculated using the Arrhenius expression. The data obtained are compared and discussed with available reported results. Further a flow diagram for production of TiO 2 based on KOH decomposition of ilmenite paste–oxalic acid leaching is given.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
