Optimization of acidic treatment of bentonitic clays from the national layers

Investigations in the field of the development of inexpensive catalysts for the production of environmentally safe fuels, based on synthesis-gas from biomass, have been performed. The influence of acidic (sulphuric and phosphorous acids) treatment on the specific surface of Russian (Voronezh and Krasnodar) origins of bentonitic clays was investigated. For the determination of the optimal conditions of acidic treatment, the method of extremal experiment planning has been applied. The full factor experiment was chosen as the plan; in such an experiment, all factor combinations are implemented on all levels used for investigations. The variable parameters were as follows: the acid concentration, and the temperature and time of the acid treatment. The average pore diameter and the specific surface of clays were chosen as the response functions. The response surface appearance is very complex.