F. N. Yahya, W. Ibrahim, B. A. Aziz
Mar 5, 2020
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Journal
IOP Conference Series: Materials Science and Engineering
Abstract
Sodium Cyanide (NaCN) has been used to recover gold from gold bearing ores. This work aims to develop a simulation model of leaching process by using cyanide solvent for the dissolution of gold by using HSC simulator. The results from this simulation were compared with other researcher which employed Aspen Plus and it shows very good agreement with very small error (<1.5%). The cases study was carried out using the developed process model where hydrochloric acid (HCl) was used as solvent, the effect of different concentration of Au in ores and the effect of different concentration of solvent as a leaching reagent. The results show that the chlorination process gives higher amount of gold (Au) dissolved in the solvent compared to cyanidation process. The develop process model provide an effective means for studying the solid liquid leaching process in the future.