In-place Mining: Pioneering a Transformational Shift in Mineral Extraction
By Jenni Sweet
Mining3 is championing In-place Mining (IPM) as a revolutionary approach to transforming mineral extraction methods. But what exactly is IPM, and why is it generating such interest within the industry?
Understanding IPM
In-place extraction of materials is not a foreign concept; the original “Rio Tinto” is a river in southwestern Spain where the water runs red because of the dissolution of iron. Indeed, humans relied on nature’s in-place extraction techniques long before the first mine was ever built.
In the modern context, IPM aims to minimise the movement of rock and keep waste material as close to its original location as possible, while still recovering minerals required to support contemporary life. Unlike traditional mining methods that involve extensive excavation and transportation of large volumes of ore and waste, IPM focuses on extracting valuable minerals while leaving the surrounding rock undisturbed. This approach uses a combination of selective fragmentation, mechanical rock cutting, leaching, and ore upgrading processes implemented at or near the mining face. IPM aims to reduce environmental impact, lower operational costs, and enhance extraction efficiency by conducting these activities in situ.
Opportunities presented by IPM
IPM can make previously uneconomical or hard-to-access ore bodies viable and open avenues for producing secondary products. IPM paves the way towards zero-waste mines by keeping waste material in place, with closure and post-closure considerations integrated into the mine design from the outset.
Challenges and risks
IPM faces challenges that require thorough evaluation, including concerns about water management, chemical processes, and reliability, and navigating the complex regulatory landscape demands clear communication and proactive risk identification and management. A recent industry workshop highlighted the need to critically review existing literature and past studies to identify learnings and knowledge gaps, define enabling technologies, establish success criteria, and determine data needed to manage risks.
Mining3’s role in advancing IPM
Mining3 has been instrumental in developing concepts, methods, and tools for modelling, simulating, and assessing the impact of new technologies on mining processes. In the context of IPM, our capabilities enable us to evaluate potential designs using advanced modelling and simulation tools, assessing various IPM scenarios to reduce process risks and optimise performance. Our models serve as practical communication tools to convey the potential added value and reduced environmental impact of IPM to regulators and other stakeholders, fostering trust and collaboration. We proactively address risks and challenges to catalyse an industry-wide shift towards more sustainable and efficient underground mining operations.
Conclusion
IPM represents a significant leap forward in mineral extraction methods. While challenges remain, the potential to revolutionise the industry by enhancing resource viability, reducing environmental impact, and improving operational efficiency is substantial. Mining3 remains committed to advancing IPM technologies, bridging knowledge gaps, and leading the way towards a more sustainable future in mining.
