The mathematical model of correlation between magnetic material content and TFe grade in magnetite

Determination of the TFe grade for magnetite products is of great importance in mineral processing.However,it is time-consuming and money consuming.By measuring the magnetic material content and chemically analyzing the TFe grade of many magnetite products,a relationship between them was discovered.Based on this relationship,a mathematical model was established employing Weibull distribution,and then the dependence of the TFe grade on the magnetic material content for magnetite products was established.The results show that for the TFe grade of 43.42%to 99.40%,the mathematical model for the relationship of the TFe grade and the magnetic material content has good fitness.It may be used as a fast,simple and convenient way to estimate the grade of magnetite products.