1　前言润滑油抽出油 ,是润滑油生产过程中的副产品。关于抽出油的综合利用 ,国外早在本世纪 4 0年代就已开始 ,我国在这方面起步较晚 ,始于 60年代 ,直至70年代 ,由于橡胶工业对石油软化剂的需要 ,才引起普遍重视。到现在为止 ,国内已经应用于许多方面 :如做强化蒸馏的强化剂 1 Introduction Lubricant oil extraction is a by-product of the lubricant production process. With regard to the comprehensive utilization of extracted oil, foreign countries started their business as early as the 40s of this century. Our country started relatively lately in this regard. It started in the 1960s and up to the 1970s. Since the rubber industry needed petroleum softeners, it has drawn universal attention . So far, the country has been applied to many aspects: such as strengthening the distillate intensifier