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Effect of Rock Impurities as Determined from Rock Production Data



Over the years, FIPR has spent several hundred thousand dollars on laboratory and pilot plant studies to determine the effect of rock impurities on the phosphoric acid attack tank performance. In addition, many phosphate companies have struggled with justifying projects that will remove these impurities from the rock or improve operating control systems. This study used operating plant data to determine the effect of rock quality as well as operating variables on the performance of the plants.