The regressive model of the process adequately depicting the experimental data has been worked out on the basis of experimental data. The qualitative correlations reflecting an influence of the basic factors on the indices of a process have been established. By using the elaborated model all kinds of the versions of conducting the process have been calculated. One-parameter dependences of output value on input variables have been found out. The optimum values of input variables allowing to find out the maximum value of the end product have been determined.