Wan Ibrahim, W. H. and Yahya, Fatin Nasuha and Abdul Aziz, Badhrulhisham and Mat Suli, Liyana Nadirah (2020) Simulation of leaching process of gold by cyanidation. In: IOP Conference Series: Materials Science and Engineering; Energy Security and Chemical Engineering Congress 2019, ESChE 2019 , 17 - 19 July 2019 , Kuala Lumpur, Malaysia. pp. 1-9., 736 (2). ISSN 1757-8981 (Print), 1757-899X (Online)
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Abstract
This paper presents a simulation study of leaching process of gold by using HSC Chemistry software (HSC). Cynide (NaCN) has been used to recover gold from gold bearing ores since 1890’s and until today it still playing an important role in the beneficiation process of the gold. This work aims to develop a simulation process model of this solid-liquid leaching process by using cyanide solvent for the dissolution of gold by using HSC simulator. The simulation of the leaching process was carried out in a continuous steady-state condition. The results from this simulation were compared with other researcher which employed Aspen Plus and it shows very good agreement with very small error (less than 1.5%). A case study was carried out using the developed process model where hydrochloric acid (HCl) was used as solvent in order to recover the gold from the ores. The results from the case study show that the chlorination process gives higher amount of gold (Au) dissolved in the solvent compared to cyanidation process. Another case study was carried out in order to study the effect of different concentration of Au in ores and the effect of different concentration of solvent as a leaching reagent. As a conclusion, the develop process model provide an effective means for studying the solid liquid leaching process in the future.
| Item Type: | Conference or Workshop Item (Lecture) |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Solid-Liquid Leaching; Gold; Simulation; HSC Software; Cyanidation; Chlorination |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Chemical and Process Engineering Technology |
| Depositing User: | Pn. Hazlinda Abd Rahman |
| Date Deposited: | 02 Nov 2017 04:10 |
| Last Modified: | 10 Jan 2023 03:46 |
| URI: | http://umpir.ump.edu.my/id/eprint/18935 |
| Download Statistic: | View Download Statistics |
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