Abstract

Procedures noted herein will result in relatively optimal prelimer control and performance. Through the application of the procedures and control methods noted, it is possible to maintain relatively optimal preliming performance over a relatively wide range of operating conditions and beet quality. Certain severe adverse conditions affecting 1st carbonatation slurry filtration performance may require somewhat higher final preliming alkalinity than indicated by the test for determination of the optimum endpoint. Such conditions may be indicated by an abnormal flattening of the minimum point of the optimum alkalinity determination plot of transmittance difference between filtered and unfiltered sample aliquots.

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