Annually at the oil refining enterprises a plenty of firm waste products catalysts are formed.They haveworked their resource during hydroclearing oil fractions.Structure of catalysts contains about6%-12%Mo,35%-40%Al,2.5%-3%Ni,that allows to consider themas secondary complex raw material.Re-cyclingthe waste catalystsis alsothe actual problem,demandingthe decisionfromthe point of viewof pro-tection of an environment fromtoxic industrial wastes.Baikov Institute RAS together with MISA havebee…