Solvent for dewaxing rafinates extracted from distillate oil
The paper considers options for intensification of oil treatment technology of oil distillate from undesirable components (bituminous-asphalts compounds) and obtain improved slop wax. The influence on the process of cleaning up an oil fraction sequence of treatment processes (extraction - dewaxing -"straight" scheme; dewaxing - extraction - "reverse" scheme) with additive ethyl acetate, added in acetone - toluene solvent at dewaxing step. It shows that the best results are achieved when cleaning vacuum distillate on "straight" scheme in the presence of additive ethyl acetate at the stage of dewaxingon extractive crystallization method in the presence of the solvent acetone - toluene.