Glencore Technology Heralds Jameson Cell Rougher Duty Expansion

Why It Matters

The compact, high‑throughput Jameson Cell enables mines to boost production while cutting infrastructure and energy expenses, addressing the industry’s push for cost‑effective, sustainable operations. Its adoption could become a benchmark as ore grades fall and environmental pressures rise.

Key Takeaways

• Jameson Cell now handles rougher duties up to 3,500 t/h
• Smaller footprint replaces 5‑8 mechanical cells with just 2
• FDN mine throughput rose to 5,000 t/d, recovery to 90.4%
• Fines recovery cuts cyanide use, lowering OPEX
• Design upgrades boost flexibility for brownfield debottlenecking

Pulse Analysis

Flotation remains a cornerstone of mineral processing, but traditional mechanical cells demand extensive space, energy and maintenance. The Jameson Cell distinguishes itself with a downcomer that creates a high‑intensity mixing zone, eliminating the need for mechanical agitation. Recent engineering upgrades—particularly larger downcomer models—have expanded its capacity to 3,500 tonnes per hour, allowing it to tackle rougher and rougher‑scaler duties that were once the exclusive domain of bulk‑mechanical equipment. This shift delivers superior energy efficiency and a dramatically reduced plant footprint, a compelling proposition for new mine developments.

The real‑world impact of these enhancements is evident at the Fruta del Norte underground gold mine in Ecuador. After installing three industrial‑scale Jameson Cells, including two B5400/18 units, the operation lifted daily throughput from 4,500 to 5,000 tonnes and lifted gold recovery from 86% to 90.4%, while concentrate grade hit 199 g/t Au. Enhanced fines recovery also lowered the sulphur content entering the carbon‑in‑leach circuit, curbing cyanide consumption and delivering measurable OPEX savings. Plant managers cite the simplified circuit—often a two‑cell rougher‑scalper‑scavenger train replacing five to eight mechanical cells—as a key driver of reduced capital outlay and operational complexity.

Beyond a single project, the Jameson Cell’s evolution signals a broader industry trend toward modular, high‑performance technologies that align with sustainability goals. As ore grades decline and regulatory pressure mounts, mining firms are seeking solutions that deliver more metal per unit of energy and land. The cell’s compact design facilitates retrofits in space‑constrained brownfields, enabling rapid debottlenecking without costly expansions. Its proven ability to improve recovery while cutting cyanide use positions it as a strategic asset for companies aiming to lower their environmental footprint and improve profitability in a competitive market.