FIELD: petrochemical processes. SUBSTANCE: fraction of 67-75 C isolated from hexane-containing fraction is subjected to hydrofining and resulting hydrogenizate is rectified to give still product containing at least 43% hexane. Part of the latter fraction is introduced at 1:(0.3-0.8) ratio into stream of hexane-containing fraction fed into hydrofining zone. EFFECT: improved quality and reduced expenses on raw materials. 2 cl, 1 dwg, 4 ex
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