Statistical evaluation of uranium content in phosphoric acid in the process of phosphate raw material decomposition

On the basis of run analysis concerning phosphate raw material decomposition by dihydrate method, taking into account distribution of uranium into phosphoric acid and phosphogypsum, the method of statistical analysis of the experiment carried out in industrial conditions was presented. The method was modified by using additional variable - time shift - constituting a crucial parameter of technological process. It helps to improve the adequacy of accepted even with many simplifying assumptions mathematical model of the process under investigation. 3 refs., 5 figs., 2 tabs. (author)