This study is aimed the developing the special petroleum products, namely, preventive lubricants (PL) used in the field of solid minerals transportation. The surface and adhesion characteristics of the prophylactic compositions developed earlier on the basis of thermodestructive and thermocatalytic processes products of oil refining are investigated. It is set that the prophylactic agents contain the far of surface active substances, such as resins, pyrobitumens and other polyaromatic hydrocarbon compounds: in the heavy gas-oil of the catalytic cracking their content is above 45.96 %, in an easy gas-oil – 15.07 %, that results in the improvement of viscosity-temperature properties of products and promotes their oiling ability. The basic amount of compounds with high superficial activity is contained in heavy fractions of oil, and in the process of processing concentrated in a petroleum residue - petroleum tar that was used as depression addition in mixtures of prophylactic agents. For protecting of metallic surfaces of mountain transport from a direct contact with the transported material in the conditions of the lowered temperatures it is recommended to apply composition of the catalytic cracking mixtures with content of petroleum tar from 2 to 5%. <span style="opacity: 0;"> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . </span>
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