Abstract
The gold cementation by iron powder from thiourea solutions in the absence and presence of ferric ion was investigated. Ferric ion affects significantly the cementation reaction kinetics. The gold cementation without the presence of ferric ion obeys the first-order kinetics and is a diffusion controlled process. Ferric ion increases significantly the redox potential of the solutions, which results in the remarkable decrease of gold recovery. Tri-sodium citrate was used to overcome the negative effect of ferric ion on gold cementation reaction, which is attributed to its role of lowering the redox potential of the solutions with the formation of iron (III)-citrate complexes.
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.
