Exploitation and research of compositive product, i.e. Corrosion Inhibitor, was carried out by the mixing of the main component of corrosion inhibitor with surfactants, chelate, organic amine and liquid of prefabrication, then the optimal proportion was found out in order to build the best matching systems. The models among the anti-corrosive capacity of the inhibitor and operation conditions were established by polynary quadratic regression. The optimum operation conditions obtained by non-linear programming (NLP) are the following: the amount of the surfactants, chelate, organic amine and the liquid of prefabrication is 0.112 6, 0.010 2, 0.213 9 and 0.357 2 respectively. The verified experiment showed that the products under the optimum operation conditions had the better water-soluble capablity, slower corrosion rate and higher anti-corrosive capacity (up to over 99%).

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.