MÜHENDİSLİK FAKÜLTESİMETALURJİ VE MALZEME MÜHENDİSLİĞİ


Pyrometallurgy Laboratory

Primary Researcher(s) / Coordinator(s): 
Prof. Dr. Ahmet Geveci
General Information: 

Pyrometallurgy laboratory in METU Department of Metallurgical and Materials Engineering

Equipments: 
  • Vertical Tube Furnace (max. 1700 oC)
  • Horizontal Tube Furnace (max. 1700 oC)
  • Muffle Furnace (1500 oC)
  • Muffle Furnace (1100 oC)
  • Analytical Balance (max. 850 g)
  • Oxygen Prob (Oxygen Analyzer) (0.21 – 10-20 atm.)
Completed and Ongoing Research Projects: 

USAGE OF BORON COMPOUNDS IN COPPER PRODUCTION


In this study, usage of boron compounds as flux will be investigated in order to reduce copper losses to slag in copper production. Slag fluidity can be provided by adding B2O3 or Colemanite into charging materials and so it is possible to decrease copper losses by accelerating dissolution of matte particles. Therefore, a new application area for boron compounds which are produced in Turkey is formed. Furthermore, copper losses to slag will be enable to minimize.

 

OPTIMIZATION OF FERRONICKEL PRODUCTION FROM SIVRIHISAR NICKEL LATERITE ORE AND THE USAGE OF BORON COMPOUNDS TO INCREASE NICKEL RECOVERY


In this PhD thesis study, pyrometallurgical nickel extraction from Turkish oxide type nickel ores will be investigated. Oxide type nickel ores, which are called as laterites, are found in Gördes, Çaldağ and Sivrihisar regions. Recently, a considerable amount of laterite ore has been found in Sivrihisar region. One of the main difficulties in pyrometallurgical production of Fe-Ni alloy from limonitic laterite ores is the large volume of the slag and corresponding low Ni recovery. In such a case, a slag with increased fluidity can help to better metal and slag separation and decrease the entrapped metal particles in the slag. In the scope of this work, Sivrihisar laterite ores will be subjected to drying, calcination, prereduction and reduction stages and crude ferronickel will be obtained. At the next stage, a special study on usage of boron compounds (Boron oxide and colemanite) as flux in order to reduce nickel losses in the slag and to improve Ni recovery, will be made.

Collaborators: 
  • Res. Ass. Aydın RÜŞEN (PhD)
  • Said POURNADERI (PhD)