Substantiation of Electron-Seeking Catalysis of Vanadocene Dichloride Oxidative Breakdown in the Process of Vanadium Backwash from Heavy Karazhanbas Oil field

Abstract

In this article presents an extensive experimental results of the research of a vanadocene dichloride oxidative breakdown mechanism observable during the vanadium extraction from heavy oil. Particularly, an influence of sulfuric and nitric acid consumption on the process of demetallization of Karazhanbas oilfield heavy oil and kinetics of this reaction were considered. It was defined that the reaction will be carried out more effective in the case of substitution of sulfuric acid as an electrophilic catalyst for immobilized Lewis acids or mineral carrierimpregnated by hydrogen acids. Immobilized catalyst use allows to exclude involvement of nitric acid as an oxidizing agentin the process of vanadocene dichloride oxidative breakdown. Also the influence of ultrasonic influencepower during the oil emulsification and electroactivated aqueous solution to the kinetics demetallization were defined. New technological scheme were proposed, which provides "oil -electroactivated aqueous solution" emulsion preparation directly in oil-bearing strata. This engineering solution is able to reduce the number of process technological stages and to improve engineering-and-economical performance of demetallization.