Technical knowledge directory
Notes on mineral processing, organised by ore type and by process step. Entries are added progressively; each one is published only after technical review.
By ore type
Organised by ore type
Each ore page carries its own set of technical notes. This directory lists them in one place.
Gold Ore Processing
- Gold in sulphide versus free-milling ore (in preparation)
- Choosing between CIL and CIP (in preparation)
- Gravity recovery: where in the circuit it belongs (in preparation)
Iron Ore Beneficiation
- Magnetite versus hematite: two different plants (in preparation)
- Middlings regrinding in magnetic circuits (in preparation)
- Reverse flotation for silica removal (in preparation)
Copper Ore Processing
- Sulphide and oxide copper: two process routes (in preparation)
- Pyrite depression in copper flotation (in preparation)
- Regrinding rougher concentrate (in preparation)
Chrome Ore Beneficiation
- Chromite gravity circuits: coarse to fine (in preparation)
- Controlling the Cr:Fe ratio (in preparation)
- Slimes: the hidden loss in gravity plants (in preparation)
Tin Ore Processing
- Slime control in tin gravity circuits (in preparation)
- Tin and tungsten: a shared circuit? (in preparation)
- Sulphide removal before gravity (in preparation)
Manganese Ore Beneficiation
- Oxide and carbonate manganese: two plants (in preparation)
- Washing as a beneficiation step (in preparation)
- Phosphorus in manganese ores (in preparation)
Silica Sand Processing
- Iron in silica sand: coatings versus minerals (in preparation)
- Attrition scrubbing explained (in preparation)
- Glass sand versus foundry sand (in preparation)
By process
Organised by process step
Cross-cutting notes that apply across ore types.
Crushing and grinding
Liberation size, stage grinding, over-grinding and its consequences, choosing between rod and ball milling.
Articles in preparation — pending technical review
Gravity separation
Density-based recovery, particle-size limits, jigs versus spirals versus tables, and slimes losses.
Articles in preparation — pending technical review
Magnetic separation
Low and high intensity duties, wet versus dry, matrix selection and the limits of iron rejection.
Articles in preparation — pending technical review
Flotation
Rougher–scavenger–cleaner design, regrinding, reagent regimes and depression strategies.
Articles in preparation — pending technical review
Dewatering
Thickening, filtration, tailings management and product moisture.
Articles in preparation — pending technical review
Testing and flowsheet development
What bench and pilot testwork establish, and which design decisions must wait for it.
Articles in preparation — pending technical review
Looking for something specific?
If a topic you need is not covered yet, ask us directly — it usually becomes the next note we write.