• Professor, Metallurgical Engineering


  • Scale Up and Optimization of Ball Mills in Iron Ore Grinding, P.Faria, R.Rajamani (University of Utah), M.Tavares ( Federal University of Rio De Janeiro), S.Guachalla ( Vale Iron S/A Brazil), 3rd Symposium on Iron Ore Pelletizing, Organizer: COREM, Quebec City, Canada. Conference Paper, Presented, 10/30/2013.
  • Advances in Discrete Element Method Application to Grinding Mills. Invited Talk/Keynote, Presented, 02/26/2013.
  • The Evolution of Tumbling Mill Simulation with the Discrete Element Method. Invited Talk/Keynote, Presented, 09/24/2012.


  • Tamil, fluent.

Geographical Regions of Interest

  • India
  • South Africa

Research Equipment and Testing Expertise

  • Laboratory scale High Pressure Grinding Roll. Contact: Raj Rajamani , 801-581-6386 , 412 Browning building.

Software Titles

  • Millsoft 3D. A software for three dimensional simulation of charge motion in semi autogenous mills, autogenous mills and ball mills. The software computes mill power and impact energy spectra besides a video of the charge motion. The computing is done on the Graphic Processing Unit of the desktop PC. Release Date: 12/10/2011. Inventors: Raj Rajamani.
  • Millsoft Online. A software for the design of shell lifters for ball mills, autogenous mills, and semi autogenous mills. Release Date: 01/01/1998. Inventors: Raj Rajamani and Barada Mishra. Distribution List: The software is licensed to Process Engineering Resources Inc., Salt Lake City, Utah. www.processeng.com.
  • Millsoft. A software for simulation of charge motion in minseral ore grinding mills such as ball mill, rod mill, semi autogenous mill and autogenous mill. Release Date: 03/1996. Inventors: Raj Rajamani.


  • Experimental Study on Non-linear Behavior of Breakage Rates due to Fines Generation in Wet Batch Milling. Published, 09/2016.
  • "Overflow vesrus Grate Discharge Ball Mills: An Experimental Investigation," R. Latchireddi, R. Rajamani, S.Latchireddi, Canadian Institute of Metallurgy Proceedings, Ottawa, Canada, 2015. Published, 01/30/2015.
  • Dhawan, Nikhil, Rajamani, Raj K & Rashidi, Samira (2014). Population Balance Model for Crushed Ore Agglomeration for Heap Leach Operations. Hosokawa Powder Technology Foundation. Vol. 31(0), 200-213. Published, 2014.
  • Rajamani, Raj K., Miller, Jan D., Dhawan, Nikhil, Moats, Michael S. & Safarzadeh, M. Sadegh (2013). Crushed ore agglomeration and its control for heap leach operations. Elsevier BV. Vol. 41, 53-70. Published, 2013.
  • DEM SIMULATION OF MILL CHARGE IN 3D VIA GPU COMPUTING, R.K.Rajamani, S.Callhan,J. Schreiner, 6th International Conference on the Discrete Element Method, Golden, Colorado. Published, 08/04/2013.
  • Rajamani, Raj K., Dhawan, Nikhil, Lin, Chen-Luh, Moats, Michael S., Miller, Jan D. & Safarzadeh, M. Sadegh (2012). Recent advances in the application of X-ray computed tomography in the analysis of heap leaching systems. Elsevier BV. Vol. 35, 75-86. Published, 2012.
  • Evaluation of scale up factors in a lab scale High Pressure Grinding Roll, Proceedings of the XXVI International Mineral Processing Congress (IMPC 2012). Paper No. 406 Available as electronic copy from IMPC 2012 Organizers. Published, 09/2012.
  • Review Article – Crushed Ore Agglomaration and its Control for Heap Leach Operations, Minerals Engineering,41 (2012) 53-70. Published, 09/2012.
  • Recent Advances in the application of x-ray computed tomography in the analysis of heap leaching systems, Minerals Engineering, 35 (2012) 75-86. Published, 05/2012.
  • Insights into Heap Leach Technology. Presented and published in 2012 SME Annual Meeting, Seattle, Washington, Preprint No.12-119. Published, 03/2012.
  • "Computational Fluid Dynamics Prediction of the Air-Core in Hydrocyclones."Delgadillo J. and Rajamani R., International Journal of Computational Fluids Dynamics. 23(1) pp 189-197 (2009). Published, 03/01/2009.