Abstract
TIn developing zero—waste technology for extraction of petroleum acids from light crude cuts with ammonia water [ 1], a process was created for removing unsaponifiables from an aqueous solution of petroleum acid ammonium salts ( AS PAAS) with an extracting agent. This process produces quality distilled petroleum acids. High—temperature vacuum distillation of unsaponifiables, used in treatment of fuel cuts with caustic soda, is not applicable in this case due to the thermal instability of PAAS. Moreover, this method is not economically rational . The studies showed that the naphtha cut is the most appropriate extracting agent for this purpose.
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Murshudli, C.D. Efficiency of Extraction of Petroleum Acids in an Extractor with Sieve Plates. Method of Calculation. Chemistry and Technology of Fuels and Oils 38, 296–302 (2002). https://doi.org/10.1023/A:1021226429939
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DOI: https://doi.org/10.1023/A:1021226429939