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Mineral Processing Insights

Engineer-written guides on flowsheet design, equipment selection and recovery optimisation for gold, copper, lithium and other ores.

The Xinhai Insights library is written by process engineers to help you make flowsheet and equipment decisions: how to choose between gravity, flotation and leaching; how to size a ball mill; CIL vs CIP vs heap leach; classifier vs hydrocyclone; tailings dewatering; and cost control in cyanidation. Each guide links to the relevant equipment and ore-type solution.

Popular topics: gold processing, grinding, classification, magnetic separation, dewatering. Prefer to talk it through? Ask an engineer.

Copper Ore Beneficiation Flowsheet
Guides

Copper Ore Beneficiation Flowsheet

How copper sulphide ore becomes a 20-30% Cu concentrate: the crushing, grinding, rougher-cleaner flotation and dewatering steps, the equipment and typical grade…

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CIL vs CIP vs Heap Leach for Gold Plants
Guides

CIL vs CIP vs Heap Leach for Gold Plants

CIL, CIP and heap leach each suit different gold ores. Here is how grade, mineralogy, recovery and capex decide which flowsheet fits…

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Gold Recovery: Gravity vs Flotation vs Leaching
Guides

Gold Recovery: Gravity vs Flotation vs Leaching

Gravity, flotation and leaching each recover different forms of gold. Here is how they compare and why most plants combine them in…

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Gravity Concentration: Tables, Spirals & Jigs
Guides

Gravity Concentration: Tables, Spirals & Jigs

How shaking tables, spiral chutes, jigs and centrifugal concentrators differ by feed size, recovery and tonnage, and how to pick the right…

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How to Choose a Ball Mill for Grinding
Guides

How to Choose a Ball Mill for Grinding

Sizing a ball mill comes down to throughput, feed and product size, wet vs dry and discharge type. Here is how to…

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Cutting Costs in Gold Cyanidation Circuits
Guides

Cutting Costs in Gold Cyanidation Circuits

Where cyanidation money actually goes and how to cut it: gravity pre-recovery, grind and oxygen control, smarter lime and cyanide dosing, and…

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Small-Scale Gold Plant: Equipment & Budget
Guides

Small-Scale Gold Plant: Equipment & Budget

What equipment a 20-200 t/d gold plant actually needs, with typical capacities, indicative budget ranges and the flowsheet logic from crushing to…

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Spiral Classifier vs Hydrocyclone
Guides

Spiral Classifier vs Hydrocyclone

Spiral classifiers and hydrocyclones both close grinding circuits but suit different cut sizes and scales. Here is how to choose between them.

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Spodumene Lithium Processing Flowsheet
Guides

Spodumene Lithium Processing Flowsheet

From run-of-mine spodumene to a 6% Li2O concentrate: the crushing, grinding, DMS and flotation steps, the equipment at each stage and typical…

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Tailings Dewatering: Thickener vs Filter Press
Guides

Tailings Dewatering: Thickener vs Filter Press

Thickeners, filter presses and vacuum filters each remove water at a different stage and cost. Here is how they compare and how…

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