Engineering and mineral process solutions that service the global mining industry.
Free for process engineers

Process Engineer Toolkit

Free online calculators for coal and mineral processing. Enter your float-sink, size or plant data and get results, charts and tables in seconds, built by Red Dune’s process engineers.

Live

Mayer Curve Analyser: Ash

Theoretical yield, separation density and discard ash for any target product ash. Single or two-product separations, with near-gravity material.

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Live

DMS Efficiency Test: Partition Curve

Tromp curve, cut-point density d50, Ep, imperfection, organic efficiency and misplaced material from a plant test.

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Live

Washability Calculator

Fractional or cumulative float–sink data to full washability tables and curves, with product quality and near-gravity material at any density.

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Live

Size Analysis: Crushing & Rosin-Rammler

Cumulative passing, mean size, d50 and P80, Rosin-Rammler fit, and the size consist after crushing to a top size.

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Live

Coal Blending Calculator

Blend CV, ash, sulphur and moisture from up to ten products, as-received CV, and the ratio to hit a target specification.

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Live

Yield Optimiser: Ash or CV

Maximum combined yield from two or more separately washed coals at a target ash or CV, the best cut point for each, and what the extra tonnes are worth.

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Coming soon

Mayer Curve: Calorific Value

Yield and separation density for a target product CV, from float-sink data.

Coming soon

Washing Simulation

Primary wash, floats rewash and two-stage low-high wash simulations from washability data.

Turning test results into a plant?

Red Dune designs, builds and supplies modular DMS plants, with operators, maintenance and spares. Send us your washability data for a free flowsheet review.

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Red Dune Engineering & Mineral Process Solutions (Pty) Ltd

(Reg. 2015/366725/07)



20 Chopin St
Klarinet 
Witbank
1035

Mobile: +27 79 498 8229

Mobile: +27 84 705 6354

Email: ian@reddune.co.za

Red Dune Engineering & Mineral Process Solutions.

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