Innovative Technology Integration for Transforming Metal Production in Copper and Copper–Gold Operations
摘要
Worldwide, copperCopper and copperCopper-goldGold operationsOperation are increasingly challenged by declining ore gradesDeclining ore grades and rising mineralogical complexity. For example, the average copperCopper head gradeGrade in ChileChile has decreased by 30% over the last 15 years. Moreover, the world’s largest copperCopper concentratorConcentrator, Escondida, has seen its head gradeGrade decline significantly—from approximately 2.5% copperCopper in the 1990s to around 0.5% today (Erismann in Mining Journal, 2022). In response to these challenges, the miningMining industry has processed higher ore volumes; over the past 10 years, the ore sent to concentratorsConcentrator worldwide has increased by 1.1 billion metric tons, representing a 44% growth (McKinsey & Company Mining 2030: How the industry is adapting to declining ore grades and rising ore volumes, 2023). To handle this increased throughputThroughput, larger comminution and flotationFlotation equipmentEquipment are being installed. For instance, flotationFlotation cell volumes as large as 630 m3 are now operating at the Buenavista del Cobre (BVC) concentratorConcentrator in Northern Mexico (Metso in Scaling up: the adoption of large flotation cells in modern concentrators, 2022), while new non-mechanical cells such as Woodgrove’s Staged FlotationFlotation Reactor (SFR) and Eriez’s Hydroflot are also being adopted. These industry trends underscore the necessity for technological integrationIntegration that not only addresses the increased processingProcessing volumes and equipmentEquipment demandsDemand but also enhances recoveryRecovery efficienciesEfficiency and mitigates environmental impactsEnvironmental Impact. This paper presents a comprehensive strategy that integrates three synergistic technologiesTechnology: These three technologiesTechnology are leveraged and integrated as per the need of an individual operationOperation. It is not necessary to utilize all three technologiesTechnology at once, rather a stage-wise approach is most appropriate in many cases. Some applications of these technologiesTechnology along with benefits are provided in this brief overview.