Abstract
The separation and recovery of scandium and titanium from hydrolyzed sulfuric acid solution of titanium dioxide production using solvent extraction was investigated. A mixed solution of Na3PO4 and H2O2 was used to selectively scrub titanium from the loaded organic solution containing scandium and titanium. The results showed that the scrubbing of titanium reached 95% with mole ratios nP/nTi of 2/1 and nH2O2/nTi of 3/1 at an O/A of 1/1 and 50°C for 15min in a single stage, and further reached >98% through a three-stage counter current scrubbing with mole ratios nP/nTi of 1.5/1 and nH2O2/nTi of 2/1 at an O/A of 1/1 and 25°C for 15min. The co-scrubbed scandium was <4%. Compared with the traditional methods of H2SO4/H2O2 scrubbing, the new system of Na3PO4 and H2O2 exhibited significant advantages of higher scrubbing of titanium and lower loss of scandium.
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.
