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Abstract
This problem was defined starting with an evaluation of the present automated
method for fluoride determinations at the Alcan Ingot Sebree plant. After evaluation, the
problem was recognized as the need for process upgrade or process improvement.
Several possible alternatives were discussed and only three analyzed. An
economic evaluation of the alternatives selected was performed and the decision was
made based on different economic criterions. The economic criterions utilized were the
cash analysis by present worth, the cash analysis by uniform annual cost, sensitivity
analysis, the payback period, and incremental analysis. The final decision made was to
purchase a sampler upgrade to improve the current process. The project activities were
also studied using project management tools and the conclusions were that Alcan could
finalize this project within this calendar year.