This thesis presents a study conducted to investigate the feasibility of using the existing Les Resources Camchib mill facilities to treat a new gold--copper ore called S-3. Analysis of the S-3 ore indicated that copper exists as chalcopyrite and that gold as free gold or in association with sulphides. The S-3 ore typically contains 0.3% copper and from 3.0 to 5.5 g/t gold. / The study involved both laboratory and plant testing. Four routes were investigated to treat the S-3 ore: flotation with the present circuit and reagents, flotation with the present circuit and new reagents, flotation at natural pH in a slightly modified circuit, and direct cyanidation. Alkaline pH flotation in the existing mill circuit with Aero 3477 and Xanthate 343 as collectors (the second route) gave the most promising copper and gold recoveries. A Laboratory locked cycle test indicated that a copper concentrate grading 18.4% Cu with 89.4% gold and 94.9% copper recovery can be obtained. Plant flotation test yielded a copper concentrate grading 16.9% Cu with 82.0% gold and 95.7% copper recoveries. The plant results were obtained using gravity circuit tail as the flotation feed. If recovery of coarse free gold in the gravity circuit is taken into account, the overall gold recovery is 87%.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.22354 |
| Date | January 1985 |
| Creators | Wibisono, Andri S. (Andri Suryanto) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Engineering (Department of Mining and Metallurgical Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001099579, proquestno: MM63753, Theses scanned by UMI/ProQuest. |
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