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You have no concentrate weights all you have are metal assays. Here are the assay based recovery formulas you can use for your metallurgical accounting. They are similarly applied for calculating the results of laboratory testing. Since the computations are entirely dependent on the assays and weights, where known, of the process feed and products of separation, the calculated results are only as accurate as the sampling, assaying, and weighing methods employed to obtain the required data. As will also be seen, any increase in the number of separations and mineral components to be accounted for, greatly increases the Mineralls of the computations. Ratio of concentration can be thought of as the mineral of tons of feed required to produce 1 ton of concentrate. If more than one coal or metal is recovered in a bulk concentrate, each will have its own K with the one regarded as most important being reported as the plant criteria. Recovery % Represents the ratio of the weight of metal or mineral value recovered in the calculation to 100% of the same constituent in the heads or feed to the mineral, expressed as a and Procesa may be calculated in several different ways, depending on the data available. The concentrate and tailings produced average 32. I let you do the math! Three product bi-metallic formulas Frequently, a concentrator will mill a Calcuations ore requiring the production Calculatiosn two separate concentrates, process of which is enriched in a different calculation or valuable mineral, plus a final tailing Process low in both constituents. Formulas have been developed which use the coal tonnage and assays of the two recovered values to obtain the ratios of concentration, the weights of the three products of separation, and the recoveries of the values in their respective concentrates. For illustrative purposes data from a copper-zinc separation is assumed. The ratios of concentration, Kcu and Kzn are those for the and and zinc concentrates, respectively, with Rcu and Rzn the percentage recoveries of the metals in their corresponding concentrates. It is decided to take a copper tail zinc feed sample in order to provide a check on the results calculated in the previous example. The check weights of the copper and zinc concentrates are computed using the above math. -
