Dr. Ranjan Kumar Dwari, Scientist-F 9437194521, rkdwari@immt.res.in , https://sites.google.com/view/ranjan-dwari-reaserch-group-cs/home
DESCRIPTION :
Dr. RK Dwari M. Tech is completed. In Chemical Engineering from NIT Rourkela in 2003. In 2005 he moved to Sweden under a SIDA and Kempestiftelsen Fellowship to do his PhD. (Technology) in Mineral Processing at Luleå University of Technology. He successfully defended and awarded his PhD degree in May 2008, less than three to three and a half years. He has been working as a scientist since July 2008 at the Ministry of Mineral Processing and Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Orissa. Dr. Dwari addressed the major problem of removing inorganic from high-ash Indian non-coking coal using the tribo-electrostatic separator-dry process for his doctoral thesis. He successfully designed and developed a novel cylindrical fluidized bed tribo-charger, with internal rashes made of copper. He investigated to understand the charge characteristics of different ashes in the manufacture of minerals on three-electrification with materials of different work functions. They developed a new method to understand and determine the surface energetic composition of ash-forming mineral in coal in terms of acidity and / or basicity, before and after tri-electrification with different materials through contact angle measurement. is. Dr. Dwari is currently leading several projects on coal, iron, bauxite, barite processing.
EXPERIENCE :- Research Scholar at Mineral Processing Division, Lulea University of Technology, Lulea Sweden from February 2005 to June 2008.
- Scientist, Mineral Processing Department, CSIR IMMT, Bhubaneswar, India.
- Jr. Scientist, Mineral Processing Department, CSIR IMMT, Bhubaneswar, India since July 2008.
AREA OF INTEREST :- Fine particulate processing, dewatering, colloids and interfaces.
AWARDS & HONOURS :- Artemis Biotech Best Master’s Thesis in Chemical Engineering/Technology Award for the year 2004 by Indian Institute of Chemical Engineers (IIChE), India.
- Best Licentiate Thesis Award for the year 2006 at Luleå University of Technology by Bergforsk, Sweden.
RECENT PUBLICATIONS :- R. K. Dwari, D. S. Rao, PSR Reddy, 2012, Magnetic separation studies on a low grade siliceous iron ore sample, International Journal of Mining Science and Technology, Accepted.
- M. Das, R. K. Dwari, S. K. Biswal, P. S. R. Reddy and B. K. Mishra, 2011, “Studies on the effect of flocculant adsorption on the dewatering of iron ore tailings”, Chemical Engineering Journal, 173, pp. 318-325.
- K. Hanumantha Rao, R. K. Dwari, S. Lu, A. Vilinska and P. Somasundaran, 2011, “Mixed anionic/non-ionic collectors in phosphate gangue flotation from magnetite mines”, The Open Mineral Processing Journal, 4, pp.14-24.
- S. I. Angadi, R. K. Dwari, Tiwari, P. K. Raghav, 2011, “Hydro-cyclone performance comparison using different models” To be submitted to Minerals Engineering.
- R. K. Dwari and K. Hanumantha Rao and P. Somasundaran, 2009, “Characterisation of particle tribo-charging and electron transfer with reference to electrostatic dry coal cleaning,” International Journal of Mineral Processing, 91, pp. 100-110.
- R. K. Dwari and K. Hanumantha Rao, 2009, “Fine coal preparation using novel tribo-electrostatic separator,” Minerals Engineering, 22, pp. 119–127.
- R. K. Dwari and K. Hanumantha Rao, 2008, “Non-coking coal preparation by novel tribo-electrostatic method,” Fuel, 87, pp. 3562–3571.
- R. K. Dwari and K. Hanumantha Rao, 2008, “Characterising electron transfer mechanism in tribo-electrification of pyrite through contact angle measurements,” The Open Mineral Processing Journal, 1, pp. 6-12.
- R. K. Dwari and K. Hanumantha Rao, 2006, “Tribo-electrostatic behaviour of high ash non-coking Indian thermal coal,” International Journal of Mineral Processing, 81, pp. 93-104.
- R. K. Dwari, M. N. Biswas, B. C. Meikap, 2004, “Performance Characteristics for Particles of Sand- FCC and Fly-ash in a Novel Hydro-cyclone,” Chemical Engineering Science, 59, pp. 671-684.
- R. K. Dwari, D. S. Rao, P. S. R. Reddy, Magnetic separation studies on a low grade siliceous iron ore sample, International Journal of Mining Science and Technology, 2012, In Press, Corrected Proof, Available online 8 February 2013.
- R. K. Dwari, D. S. Rao, A. K. Swar, PSR Reddy, B. K. Mishra, 2012, Characterization of dolochar waste generated by the sponge iron industry, International Journal of Minerals, Metallurgy and Materials, 19, 11, pp. 992-1003.