Physical and chemical analysis in Magnetitum before and after processing

Objective:The purpose of this paper is to systematically analyzing the physical and chemical change in magnetitum before and after processing.Method: Diagnostic character,chemical titration,atomic absorption spectrometry(AAS),atomic fluorescence spectrometry(AFS),inductively coupled plasma emission spectrometry-mass spectrometry(ICP-MS),X-ray diffraction and differential thermogravimetry and else methods were used for the analysis.Results:By processing,the traits of magnetitum have undergone significant changed but the total iron content did not.The water-soluble iron dissolution increased,on the contrary,the total and water-soluble heavy metals and toxic elements decreased.And after processing,a new phase Fe2O3 created and the thermal property has changed significantly.Conclusion:This paper lays the foundation for describing the scientific content of processing efficiency to magnetitum.