Preliminary communication

Management of the pig iron Si and slag CaO/SiO₂ technological indicators in order to produce pig iron with a titanium content below 0,02 %Ti

C. Kolmasiak ; Czestochowa University of Technology, Czestochowa, Poland
I. Nowodzińska-Budzik ; Czestochowa University of Technology, Czestochowa, Poland
R. Budzik ; Czestochowa University of Technology, Czestochowa, Poland

Abstract

The article present the developed method for production of pig iron with a very low titanium content of Ti < 0,02 %, while taking into account specific charge conditions. A two-week preliminary pig iron production test carried out determined the direction in managing two technological indicators, namely pig iron [Si] content and slag (CaO/SiO₂) basicity, to obtain pig iron with a [Ti] content below 0,02 %. Based on the data from the preliminary test, proper tests were carried out with a pig iron Si content in the range from 1,0 % to 1,6 % and a slag CaO/SiO₂ basicity in the range from 0,96 to 1,10. Data obtained from those tests enabled a statistical model to be established in the form of regression planes of two independent variables, [Si] and (CaO/SiO₂). The regression equation of the first degree, [Ti] = f[(Si), (CaO/SiO₂)], defined the plane that gave the process engineer the answer to the question of how to manage the [Si] and (CaO/SiO₂) indicators so as to obtain pig iron with the desired [Ti] content below 0,02 %.

Keywords

titanium; steel; pig iron; iron metallurgy; metallurgical processes

Hrčak ID:

122186

URI

https://hrcak.srce.hr/122186

Publication date:

1.10.2014.

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