Reductive roasting of chromite present in chromite ore uder the co gas atmosphere

• Autorzy: Potulska A.
• Konferencja: Zagadnienia interdyscyplinarne w górnictwie i geologii. IV Krajowa Konferencja Doktorantów, Szklarska Poręba, 29-31 stycznia 2004r.
• Języki publikacji: EN

Abstrakty

EN

The reduction of chromium (IV) in industrial pellets and ore lumps was investigated by the thermogravimetric analysis (TGA). The main goal of the study was to examine in different temperature zones the behaviour of a sample consisting of industrial pellets mixed with lumpy ore and coke. The experiments were done under the carbon monoxide atmosphere in an electrical arc furnace. The sample composition (ratio between industrial pellets coke and ore lumps) was kept similar to the material used by industry to check the validity of the laboratory (one-element sample) experiments. The experimental work was performed in an electrical vertical arc furnace at the research laboratory in Delft University of Technology. During the research the kinetics of the chromite reduction in the temperature range of 1420-1520 °C were discussed. Samples were also studied using visual observations. The chromite ore tested during the experiments came from the mine in Finland.

Słowa kluczowe

EN

chromite; reduction; sintering; ore

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Górnictwa Politechniki Wrocławskiej. Konferencje
• Rocznik: 2004
• Tom: Vol. 107, nr 39
• Strony: 263--270
• Opis fizyczny: Bibliogr. 2 poz., rys., tab.

Twórcy

autor

Potulska A.

• Politechnika Wrocławska, Wydział Geoinżynierii, Górnictwa i Geologii

Bibliografia

• [1] Y. XIAO, C.SCHUFFENEGER, M. REUTER, L. HOLAPPA AND T. SEPPÄLÄ, Solid State Reduction of Chromite with CO, Accepted for INFACON X, 1-4.2.2004, Cape Town, South Africa.
• [2] POTULSKA A., Chromite reduction from ferrochromium ore with CO gas, MS Thesis Delft Technical University and Wroclaw University of Technology, 2003.