Scholarly record
INVESTIGATION OF KINETIC REGULARITIES OF CHLORIDE LEACHING PROCESSES OF TITANIUM PRODUCTION WASTES
Abstract
The paper presents the results of investigation of the process of leaching of scandium from chloride wastes generated in titanium production to optimize the parameters of extraction into solution. The effects of key factors, including solid-to-liquid ratio (S:L), hydrochloric acid (HCl) concentration, process duration, stirring speed and the influence of temperature on the degree of scandium extraction into solution were studied. Experimental results indicate that optimal conditions for maximum extraction are: S:L ratio=1:10, HCl concentration = 0.12 percent (pH=1.47), temperature (80 to 90 degrees Celsius), duration =60 minutes, and stirring speed =300 rpm. It is shown that increasing the HCl concentration to 3 percent further enhances scandium recovery to 97.2 percent, corresponding to a pH = -0.82. A comprehensive kinetic analysis was performed by fitting the experimental data with the exponential kinetic equation, Yander diffusion equation, Drozdov-Rotinian equation and Prout-Tompkins equation. The findings contribute to the development of an efficient scandium recovery technology, reducing the environmental impact and enabling the secondary utilization of the valuable component.
Publication Impact Profile
- Captures
- Mendeley - Readers: 7
Publication details
References5
Kobzhasov A.K. Metallurgiya vanadiya i skandiya: Ucheb. posobiye. �Almaty: KazNTU. 2007. -230 s.
Korshunov B.G. Scandium / B.G. Korshunov, A.M. Reznik, S.A. Semenov. - M.: Metallurgy, 1987. - 184 ?
Orynbayev, B., Baigenzhenov, O., & Turan, M. (2024). Overview of Technologies Used to Extract Scandium from Secondary Raw Materials. Kompleksnoe Ispolzovanie Mineralnogo Syra =Complex Use of Mineral Resources, 331(4), 109 - 116. DOI: 10.31643/2024/6445.44
S. Reid, J. Tam, M. Yang, G. Azimi, Technospheric Mining of Rare Earth Elements from Bauxite Residue (Red Mud): Process Optimization, Kinetic Investigation, and Microwave Pretreatment, Sci. Rep. 7 (2017) 1�9, DOI: 10.1038/s41598-017-15457-8
O.S. Baigenzhenov, T.A. Chepushtanova, etc. (2024). Investigation of thermodynamic and kinetic regularities of asbestos waste leaching processes. Results in Engineering 21 (2024) 102000 DOI: 10.1016/j.rineng.2024.102000
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.