Oil And Fluid Experimental Simulation Of Uranium Mineralization In Deep Ordos Basin

Oil and uranium mineral resources are very rich in the Ordos Basin.A variety of energy mineral superposition areas reflect the migration of oil and gas compounds and uranyl compounds,enrichment of the the geochemical evolution of mineralization process.The role of reduction and coordination is the main form of the effect of oil and gas in uranyl compounds.The petroleum(fluid)reduces the uranyl compound to precipitate into the ore as well as the uranyl compound interacts with the humic acids in the geology to form the uranyl complex and to explore the mechanism of the migration of oil and gas in the process of uranium migration,enrichment and sedimentation.The geochemical model of the coexistence of multiple energy sources is established.This paper simulates the interaction between oil and gas minerals,humic acids and uranyl compounds.In the laboratory,oil and natural gas from the Ordos region are used as simulation reactants to study the effects of petroleum and fluid on the formation of sandstone-type uranium effect.The anthracene complex was synthesized by using aromatic acid to study the coordination effect of organic acid and uranyl nitrate.The mechanism and structure of the reaction were studied.1.Study the role of oil in uranium deposits.The simulated petroleum-water reacted with the uranyl compound under certain temperature and pressure conditions,and the reaction product was analyzed by XRD,UV-Vis spectrophotometry and gas chromatography.The experimental results show that the high temperature and low pressure reaction conditions are favorable for the petroleum reduction of uranium compounds to precipitate into uranium deposits.2.Study the effect of fluid on uranium deposits.A series of experimental schemes were designed to determine the optimal reaction time and oil/water volume ratio,and study the effect of fluid on uranium migration enrichment at different temperatures and pressures.The experimental results show that the effect of fluid and oil reduction conditions on uranium deposits is consistent,that is,high temperature and low pressure reaction conditions are favorable for the reduction of uranyl compounds to form uranium deposits.3.Study on the coordination of uranyl ions.The five crystals were obtained by using the organic acid instead of humic acid for uranyl ion coordination experiments.Their crystal structures were determined by X-ray diffraction and analyzed by elemental analysis,infrared and fluorescence.The stability of the five complexes was analyzed by thermogravimetric analysis.