Mineral Processing Knowledge | Multotec

Mineral Processing Knowledge

Mineral processing solutions aren’t bought off the shelf – they need to be engineered into a solution customised to your unique beneficiation requirements. That’s why knowledge, experience, innovation and engineering skill are just as important as proven, high-quality and reliable mineral processing equipment in optimising your plant’s overall cost per processed ton. At Multotec, we have a dedicated and passionate team of metallurgists and engineers driven by designing and integrating robust mechanical solutions in line with the latest research and developments in extractive metallurgy to increase your plant’s productivity and profitability. With operations in over 20 countries across 6 continents, there’s literally a world of knowledge behind your Multotec mineral processing equipment.

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Mineral Processing Equipment

Mineral processing equipment includes a wide range of machinery and products designed to process ROM stockpile material into a refined mineral unit. These solutions include screening systems, gravity concentrators, hydrocyclones, magnetic separators, filter presses and industrial centrifuges.

How is the mineral removed from the ore?

Mineral processing generally involves four broad processing operations: comminution (primarily crushing and grinding), sizing (with screening and hydrocyclones), concentration (e.g. gravity concentration, flotation and centrifuges) and dewatering. Each mineral type is extracted from ore through a unique beneficiation process across these four areas of mineral processing.

What is mineral processing and extractive metallurgy?

Extractive metallurgy is the field of metallurgical engineering concerned with the processes and methods of extracting metals from their natural mineral deposits. Mineral processing is 1 of 4 main categories of extractive metallurgy, alongside hydrometallurgy, pyrometallurgy and electrometallurgy.

What is dewatering in mineral processing?

Slurries enable ore to be handled and transported more efficiently. Some ores need to be watered for further processing. But ultimately, these slurries need to be dewatered and the ore/mineral isolated from the water content. The main processes used in dewatering are screening, sedimentation, filtering and thermal drying.

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Samplers

Mineral sampling systems allow operators to understand and analyse the nature and quality of their mineral streams: a critical part of the overall mineral processing operation. Mineral sampling methods are divided into wet and primary and ancillary dry samplers as required by your application.

What is sampling in mineral processing?

Sampling in mineral processing is used to estimate grades and contents of sampled materials, with the aim of evaluating resources; determining physical and chemical characteristics; as well as assessing process feasibility. A wide range of mechanical parameters need to be optimised to ensure unbiased, composite mineral samples are collected.

What are the sampling techniques in mineral processing?

Material streams can be sampled through a range of sampling solutions, including belt cross stream samplers, cross belt samplers and wet cross stream mineral samplers. It’s important that your sampling technique is carefully matched with your unique ore characteristics and process feed properties.

What is Theory of Sampling?

Pierre Gy’s Theory of Sampling (ToS), expressed through over 250 scientific books and articles he wrote on the subject since the 1950s, remains the pinnacle of mineral sampling methodology today. It proposes formulae for achieving accurate material specimens from cross-belt and flowing streams. At its core, this mineral sampling theory describes a sample as ‘correct’ only if each fragment has the same statistical probability of being selected for the sample as every other fragment.

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Research & Development

Our ongoing research and development ensures that our engineered mineral processing solutions lower your downtime, energy requirements and plant’s overall cost per ton. Our global R&D is focused on enhancing product speed to market; maximising product consistency and reliability; OEMs assuming the role of solution providers; and the recycling of products at the end of their working life.

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