Effect of nitrogen-containing bases and oxygen-containing acidic compounds of a high-paraffin oil on the precipitation of asphaltenes

The effect of high molecular weight nitrogen-containing bases of various structures and oxygen-containing acidic compounds of a high-paraffin oil on the precipitation of its asphaltenes from model toluene : hexane (1 : 3) solutions and solutions containing natural inhibitors is studied using the spectrophotometric method. The intrinsic aggregative stability of solutions of bases and acidic compounds is also determined.