Caustic washing and oil deposition from alkali waste were used to determine the solubilization capacity of sodium naphthenate for oil fractions.

• 采用馏分油碱洗脱酸和由碱渣中析油两种方法测定了石油酸钠对馏分油的增溶能力及水溶性醇类对这种增溶作用的影响。