Abstract: The study about economic effectiveness of melting low Manganese pig iron is presented. In this study, mathematical models were developed to evaluate of the economic effectiveness of the exclusion of the use of Manganese ore in agglomeration and blast furnace process with its transfer to converter process. It was found that by obviating the use of manganese ore in blast furnace, there is economy of resources and reduction in the cost of liquid pig iron. The processing of low manganese Pig-iron in a converter with the use of manganese ore also created positive economic effect, and it can get up to 6.4USD/ton of steel.

 
Keywords: Economic Benefit; Mathematical models; blast furnace process; melting low manganese pig-iron and steel.

| DOI: 10.17148/IJIREEICE.2020.8903