Abstract: Petroleum sulfonate is obtained through sulfonate reaction using extract oil from refining VGO.no.5 in the No.1 refinery of Fushun as raw materials and oleum as sulfonation agent in this paper. And the effect of reaction conditions such as acid/oil ratio, temperature and reaction time on product yield is studied. The yield of petroleum sulfonate is 64.14% when acid/oil ratio is 0.12∶1, temperature is 60 ℃and reaction time is 45 min. After petroleum sulfonic acid is reacted with 10% sodium hydroxide, petroleum sulfonate is obtained by extraction with ethanol and its active substance content is 42.1%, which can be used as surface active reagent.

Key words: Extract oil, Oleum, Sulfonating, Extraction, Petroleum sulfonate

摘要： 以抚顺石油一厂减五线馏分油溶剂精制后的抽出油为原料，采用发烟硫酸为磺化剂进行磺化反应制取石油磺酸，进而制取石油磺酸钠。在磺化反应过程中主要考察了反应温度、反应时间和酸油比对石油磺酸收率的影响。在酸油体积比为0.12∶1，反应温度60 ℃，反应时间45 min的条件下，磺化物质量收率为64.14%。与10%氢氧化钠中和反应，用乙醇水溶液在60 ℃条件下萃取出石油磺酸钠，并测定出萃取液中活性物质量含量为42.1%，可作为采油驱油剂使用。

关键词: 抽出油, 发烟硫酸, 磺化, 萃取, 石油磺酸钠