Mining Recovery
Compute the mining recovery, R = (mined ore / in-situ ore)·100%, the fraction of the ore originally present in the deposit that is actually extracted. Not all ore is recoverable: support pillars, blasting losses and contacts leave part behind. Together with dilution, it defines the extraction efficiency and the mineable reserves. Enter the mined ore and the in-situ ore.
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Grau de recuperação da lavra
Nem todo o minério de uma jazida sai dela. O grau de recuperação da lavra (mining recovery) mede a fração efetivamente extraída: R = (minério lavrado / minério in situ)·100%. As perdas têm várias origens: pilares deixados para sustentar o teto na lavra subterrânea, minério abaixo do teor de corte, fragmentos perdidos no desmonte, e bordas deixadas para evitar diluição. Há um trade-off clássico com a diluição: lavrar de forma mais 'limpa' (menos estéril junto) costuma deixar mais minério para trás, e vice-versa. Recuperação e diluição juntas convertem as reservas geológicas in situ nas reservas lavráveis — o que de fato chega à usina. Informe o minério lavrado e o minério in situ.
Related Tools
Reservoir Recovery Factor
Compute a reservoir's recovery factor, RF = (Np/N)·100%, the fraction of the original oil (N, or OOIP) that will actually be produced (Np). It is one of the most important — and uncertain — numbers in the industry: primary recovery (natural energy) is usually 5–15%; with secondary recovery (water/gas injection) it rises to 30–50%; and advanced methods (EOR) can go further. It defines the field's economic value. Enter the cumulative production and the original oil in place.
Mineral Reserve Tonnage
Compute a mineral reserve's tonnage, T = Volume · Density, multiplying the ore body volume (m³) by the rock bulk density (t/m³). It is the step that turns the estimated geometry of a deposit (from drilling and modeling) into ore mass — the basis of any economic evaluation of a deposit. Enter the volume and the ore density.
Mass Recovery
Calculate the mass recovery (mass yield) of a mineral processing operation, R = (concentrate mass ÷ feed mass) × 100%, dividing the concentrate mass produced by the ore feed mass. The result, in %, is the fraction of mass reporting to the concentrate — different from metallurgical recovery (which measures the fraction of metal recovered). Low mass recovery is typical of lean ores (little concentrate from much feed); high indicates rich ore or poorly selective concentration. Combined with the grades, it closes the plant's mass balance. Enter the concentrate and feed masses.
The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.