Dissolution, rest potential, cyclic voltammetry and contact angle studies have been conducted on the components of INCO matte, chalcocite (Cu4$ sb{2}$S) and heazlewoodite (Ni$ sb{3}$S$ sb{2}$), in water and collector solutions. / Dissolution of Ni from heazlewoodite was observed at pH .25 V. A reaction for MBT on chalcocite at $-$0.06 V, not reported previously, was proposed. / Contact angle measurements were performed with chalcocite and heazlewoodite in the presence of 2 $ times$ 10$ sp{-3}$ M NaEX over a range of potential and pH values. A significant difference in contact angle between chalcocite and heazlewoodite was observed. There was general agreement between cyclic voltammograms and contact angle measurements: For example, the contact angle on Cu$ sb{2}$S in the presence of NaEX increased significantly at the potential range corresponding to passivation. No bubble contact was observed in the presence of 2 $ times$ 10$ sp{-3}$ M MBT.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.69585 |
| Date | January 1993 |
| Creators | Bozkurt, M. M. Volkan |
| Contributors | Finch, J. A. (advisor) |
| 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: 001337278, proquestno: AAIMM87928, Theses scanned by UMI/ProQuest. |
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