| China is a big country of iron and steel, China’s iron ore reserves are large. In China, iron ore production cannot meet the demand, We need a large number of imported iron ore, so we do not have the right to international pricing. So it is necessary to increase the development of low grade ore for China. As siderite is a kind of low grade ore, it has a certain reserve at home and abroad. In this paper, the process mineralogy of the diamond was studied, The iron is mainly in the form of the siderite in the sample, Sulfur is mainly in the form of the chalcopyrite, pyrite and pyrrhotite in ore, copper is mainly in the form of chalcopyrite occurrence in ore. Study on the mechanical properties of the ore crushing resistance, The ore is a medium hard ore.N,N-Diethyldithiocarbamate Nitrile Ethyl which is a highly efficient collector of sulfide ore was synthesized by the new process, The synthetic products were characterized by means of modern instrument analysis, and the flotation performance of the product was explained by quantum chemical calculation. Through the short process and low energy consumption of the whole flotation process, the copper grade of the most total concentrate is 18.12%, copper recovery rate is 80.39%. The reduction iron powder for powder metallurgy can be obtained by the use of the metal roasting process of siderite concentrate, reducing total iron recovery rate is 49.18%,the reduction of iron grade of reduction iron powder is 98.46%. The grade of high purity iron ore is 70.41%. The total recovery rate of iron is 71.46%. The process not only can recover the copper sulfur resources, but also the sulfur content of the tailings is greatly reduced, Early removal of sulfur is beneficial to the next step.The results show that the contents of impurities in the iron concentrate which are obtained from the whole flotation process are not exceeded. This kind of short process technology can provides reference value for the utilization of this type of mineral resources.There are the groups of xanthate and N,N-Diethyldithiocarbamate Nitrile Ethyl in the surface of pyrite by means of infrared spectrum analysis. It shows that The collectors have been reacted with the surface of pyrite, it is conducive to pyrite flotation. Mixed chemical adsorption occurs on the surface of chalcopyrite, it works for both chemical and physical adsorption. The chemical adsorption between mineral surface and collectors is generated by the C=s, and it appear cyano and amide group in infrared spectrum analysis,it is similar with N,N-Diethyldithiocarbamate Nitrile Ethyl. infrared absorption spectra suggest that there are the molecular adsorption of sodium oleate and siderite. The compound also has a certain chemical effect on the siderite. Starch can be adsorbed on the surface of mineral particles, which can form a certain hydrogen bond association group, there are a molecular adsorption between oleic acid, hydroxy-acid and mineral.Based on Material Studio software, we analysis the flotation mechanism of sulfide ore and siderite. Studio Material software is used to analyze the various reagents and minerals, and the mechanism of the flotation is analyzed by using the method of quantum computing from the point of view of charge theory and energy. which provides an important research method for the further study of sulfide ore flotation and the flotation of hematite. To construct and optimize structure of the xanthate and N,N-Diethyldithiocarbamate Nitrile Ethyl. it obtained difference of the charge density distribution in the molecular and ionic structures by calculation. N,N-Diethyldithiocarbamate Nitrile Ethyl and ethyl xanthate was simulated, and both of them are compared with each other, The difference of the flotation performance is explained in theory. By material Studio software simulation, interaction energy of N,N-Diethyldithiocarbamate Nitrile Ethyl with ethyl sulfide ore are lower than the interaction energy of ethyl xanthate and sulfide ore, This shows that Sulfide ore selection of N,N-Diethyldithiocarbamate Nitrile Ethyl is better than ethyl xanthate. To construct and optimize structure of the Oleic acid and hydroxy. it obtained difference of the charge density distribution in the molecular and ionic structures by calculation. Material Studio simulation shows that the two oxygen atoms of oleic acid are most likely to have a strong effect on the siderite, Two oxygen atoms and one nitrogen atom of hydroximic acid are most likely to have a strong effect on the siderite. interaction energy of hydroximic acid with e the siderite are lower than the interaction energy of oleic acid and the siderite, the drug that the interaction energy of the drug with the siderite is the lowest can replace the one that the interaction of the drug with the siderite is relatively high. |
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