Ali, Ibrahim Abdullahi2022-05-312022-05-312021https://hdl.handle.net/10539/32954A dissertation submitted to the Faculty of Engineering and the Built Environment in partial fulfillment of the requirements for the degree Master of Science in EngineeringA process that does not depend on water as a medium for reaction is beneficial in water strapped regions such as South Africa. This thesis describes such a process. Gas phase extraction involves a volatile organic reagent that reacts with a metal of interest. In the process under investigation a volatile organic ligand reacts with solid native gold transforming it in a gas phase.enThesis