Activities / Research and Development Projects :

The team at Danddeli undertakes R & D for various projects, the following is a list of projects completed :

  • Beneficiation of various low grade Mn-ore by washing, rumbling, tabling, reduction roasting, magnetic separation etc.
  • Reduction of Mn ore MnO2 to MnO by using charcoal/ leco coke/ LPG gas etc. in rotary kiln.
  • Reduction of Mn ore MnO2 to MnO by Paramount sinter principle (PSL) in static bed by using carbon powder.
  • Reduction of Iron ore in rotary kiln using coal.
  • Fine SiO2 from rice husk in static bed by burning under controlled air.
  • Stabilization/Passivation of FeMn powder by chemical oxide to increase shelf life of metal powder.
  • Nodulation of loose wool by pulverising & screening for using as an abrasive in break liner.
  • Titanium dioxide (TiO2) slag by melting Ilmanite sand & coke in 225kVA furnace.
  • Extraction of Nickel oxide from Ni-catalyst/ sludge chemically to produce FeNi.
  • Charge Chrome/ HC FeCr in 225kVA arc furnace.
  • FeSiCr by using Cr-ore & Si metal & refining to FeCr by Cr-ore in 225kVA arc furnace.
  • FeCr with Cr 60% by using Cr-ore, Sod. Dichromate, Al powder by ATP process.
  • Ferro-Boron (FeB) B18/20% by carbothermy in 225 kVA arc furnace using Boric acid , Fe ore & coke.
  • Injection of Al + SiMn powder in liquid melt of ore & lime to study the recovery & consumption figures.
  • Tailor made FeMn, Mn 65% min, Si 8.0%min, C 0.5% max
  • ELC FeMn Mn55/60%, Si 4/5% using low grade ore.
  • Injection of LPG gas into Ore + Lime melt to reduce Mn oxide to lowest possible oxides.
  • Slag fluidity studied by keeping 25-27% Al2O3 in final slag during production of ELC SiMn in 225kVA furnace.
  • High grade FeTi with Ti 70% by melting Ti-scrap & Fe-scrap in 225kVA furnace.
  • Ferro Aluminium (FeAl) with Al 30-40% by using Fe ore & Al powder through ATP route.
  • Nitriding of metals to study the solubility of N2 in FeMn, SiMn, Al by injecting N2 gas into corresponding liquid/powder.
  • Decarborisation of HC FeMn liquid to LCFeMn by bottom blowing O2 gas in converter i.e MOR ( manganese oxygen refining ) process.
  • Activated Manganese Dioxide (AMD) by roasting Mn ore powder & uprgrading MnO2 by leaching in sulphuric acid to remove lower oxides.
  • Chemically activated Manganese Dioxide (CMD) by Nitric acid treatment.
  • Manganese sulphate (MnSO4) liquid/ solid by extraction of MnO from HMSlag by treating with sulphuric acid.
  • Electrolytic Manganese Dioxide (EMD) Acidic MnSO4 solution is electrolysed in cell to collect MnO2 on cathodes.
  • Manganese Carbonate (MnCO3) by adding sodium carbonate in MnSO4 solution
  • Production of ELC,LC & M.C FeMn by Alumino Thermic Process (ATP)
  • Production of ELC,LC & M.C FeMn in Electric Arc Furnaces.
  • Production of Speigel in Submerged arc reduction furnaces
  • Production of High Manganese Slag in Submerged arc reduction furnaces.
  • Production of SiMn MC/LC/ELC in Submerged arc reduction furnaces.
  • Production of extra low Phosphorus HC FeMn in Submerged arc reduction furnaces.
  • Production of FeTi, FeW, FeB, FeMo, FeV
  • Production of Vanadium Pentoxide.
  • Production of submerged arc welding flux.
  • Production of Carbon Electrode paste.
  • Conversion of waste slag into loose slag wool.
  • Captive Power generation by using Honge oil (Biodiesel- recognised by IISc / UC Berkley)
  • Agglomeration of Manganese ore fines
  • Magnetic separation of Iron in Manganese ore
  • Sintering of Manganese ore
  • Recovery of metal mix slag from waste slag
  • Agglomeration of jigged metal mix slag into blocks
  • Converting waste slag into construction bricks.
  • Recovery of metal waste MMF process.
  • Production of mild steel and chrome steel
  • Production of forging grade ingots.


2012 DANDDELI