Studies on alkali roasting of chromium oxide using statistical design of experiments

In traditional kinetic studies, a parameter such as recovery is expressed i n terms of reaction time, temperature and other process variables. This app roach requires a large number of experiments for formulation of a generaliz ed equation. Statistical design of experiments not only generate empirical equation but also analyse the data statistically for a given confidence lim it. In this study, experiments are carried our on alkali roasting of chromi um oxide at low temperature according to predetermined matrix of fixed valu es of variables and also a set of experiments at base level to study the re producibility. An empirical equation has been developed.