Kansanshi Copper-Gold Mine – A Flagship of Innovation and Sustainability
Overview
The Kansanshi copper-gold mine, located near Solwezi in Zambia’s North Western Province, has been a cornerstone of operations since 2005.
As one of Africa’s largest copper-producing mine, Kansanshi stands out for its world-class efficiency and cutting-edge technology.
Managed by Kansanshi Mining PLC, 80% owned by First Quantum, the mine employs over 13,000 people, predominantly Zambians, contributing significantly to the local economy.
Mining and Processing
Kansanshi is renowned for its rich vein deposits, with copper and gold mineralization found in three distinct ore types: primary sulphide, mixed supergene, and oxide.
The mining process is conducted in two large open pits, Main and Northwest, using conventional methods supported by hydraulic excavators and a fleet of haul trucks, some equipped with electric trolley assist systems for waste haulage.
The processing of ore at Kansanshi is flexible and efficient, allowing for the treatment of various ore types through specialized circuits:
-Sulphide Ore: Processed via crushing, milling, and flotation to produce copper concentrate.
-Mixed Ore: Treated similarly to sulphide ore with an additional option to process flotation concentrate through a high-pressure leach circuit.
-Oxide Ore: Undergoes crushing, milling, flotation, leaching, and SX/EW processes to produce both sulphidic and gold-bearing concentrates, as well as electro-won cathode copper.
Gold recovery is maximized across all ore types using six gravity concentrators and Gemini tables, which produce high-grade concentrates for direct smelting into gold bullion.
A significant portion of the copper concentrate undergoes treatment in a High Pressure Leach (HPL) facility, where copper is recovered through oxidation and leaching, and gold is extracted from the residues.
Smelting Operations
In 2015, Kansanshi’s copper smelter commenced operations, further enhancing the mine’s value chain. With a nominal capacity of 1.2 million tonnes of concentrate annually, it produces over 300,000 tonnes of blister copper.
The smelter is also an environmental success story, capturing 100% of sulphur dioxide emissions and converting them into over 1 million tonnes of sulphuric acid per year, which is used in the treatment of oxide copper ores, reducing reliance on imported acid.
Technological Innovation
Kansanshi continues to lead the mining industry with innovative projects like the recent trial of an ultra-large, fully battery-powered rigid-frame dump truck, launched in collaboration with Hitachi Construction Machinery Co., Ltd. and ABB Ltd.
This groundbreaking trial, initiated in June 2024, aims to validate the operational feasibility of battery-powered trucks under real mining conditions, focusing on performance in travel, turning, braking, and battery charging cycles.
This trial is not just about operational efficiency but also aligns with Zambia’s commitment to renewable energy, where 92% of power comes from clean sources.
The collaboration is a significant step towards decarbonizing the mining industry, making the Kansanshi mine a beacon of sustainable mining practices.
Kansanshi’s operations reflect First Quantum’s commitment to environmental stewardship, community development, and innovation.
By leveraging advanced technologies and sustainable practices, Kansanshi is setting new standards in the global mining industry, ensuring that its operations benefit both the local communities and the broader environment.
The Kansanshi copper-gold mine is more than just a mining operation; it is a testament to what can be achieved when technological innovation, environmental responsibility, and community engagement come together.
