Finland is known for its advanced mining technology and robust mineral processing industry, particularly for gold ore processing. Finnish companies and research institutions are at the forefront of developing efficient and sustainable equipment for gold extraction and refining.
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Key Gold Ore Processing Equipment in Finland
1. Crushing & Grinding Equipment
– Metso Outotec (now merged as Metso) provides high-performance crushers, mills, and grinding solutions (e.g., HPGRs, ball mills, SAG mills).
– FLSmidth (with a presence in Finland) offers crushing systems and grinding mills optimized for gold ore.
2. Gravity Separation & Concentration
– Knelson Concentrators (by FLSmidth) – Widely used for free-milling gold recovery.
– Shaking Tables & Spirals – Used for fine gold recovery in Finnish mineral processing plants.
3. Flotation Technology
– Metso’s TankCell® flotation units – Used for sulfide gold ores.
– Outotec® flotation solutions – High-efficiency froth flotation for refractory gold ores.
4. Leaching & Adsorption (CIL/CIP)
– Carbon-in-Leach (CIL) and Carbon-in-Pulp (CIP) systems from Finnish engineering firms.
– Advanced cyanide leaching technologies with environmental safeguards.
5. Solvent Extraction & Electrowinning (SX/EW)
– Used in refining processes, especially when dealing with complex ores.
6. Smelting & Refining Furnaces
– Electric arc furnaces and induction furnaces from Finnish manufacturers like Outotec.
7. Automation & Digital Solutions
– Finnish companies provide AI-driven process optimization tools (Metso Metrics, Kemira’s process chemicals).
Leading Finnish Companies in Gold Processing Equipment
– Metso Corporation – Crushing, grinding, flotation, and tailings management.
– Kemira Oyj – Specializes in chemicals for gold leaching and flotation.
– Outokumpu Technology (now part of Metso Outotec) – Pioneers in hydrometallurgical processes.
Research & Innovation
– GTK (Geological Survey of Finland) conducts research on sustainable gold extraction methods.
– Aalto University & University of Oulu work on bioleaching