Publications

Referee reviewed publications in international reputed periodicals

[1] RK Dwari, SK Mohanta, Optimization of process parameter of tribo-electrostatic separator for high ash non-coking coal preparation using response surface methodology, Separation Science and Technology 56 (9), 1633-1647, 2021. [I.F: 2.475]

[2] SK Mohanta, RK Dwari, Separation of the coal-quartz mixture using tribo-electrostatic separator: Effect of surface pretreatment, Advanced Powder Technology 31 (8), 3361-3371, 2020. [I.F. 4.969, Citation: 1]

[3] RK Soni, RK Dwari, DEM numerical studies on the design and efficiency of the continuous operating triboelectric separator, Advanced Powder Technology 31 (4), 1624-1632, 2020. [I.F. 4.969, Citation: 1]

[4] RK Dwari, CK Sarangi, SM Mustakim, B Dash, BC Tripathy, MK Ghosh, S Basu, R&D Eforts of CSIR‑IMMT Toward Solving Some Issues Related to Aluminum Production, Journal of Sustainable Metallurgy, 1-9, 2019. [I.F. 3.068, Citation: 1]

[5] RK Dwari, BK Mishra, Evaluation of flocculation characteristics of kaolinite dispersion system using guar gum: a green flocculant, International Journal of Mining Science and Technology 29 (5), 745-755, 2019. [I.F. 7.670, Citation: 25]

[6] KI Ayinla, AA Baba, BC Tripathy, MK Ghosh, RK Dwari, SK Padhy, Enrichment of a Nigerian chromite ore for metallurgical application by dense medium flotation and magnetic separation, Metall. Res. Technol. 116 (324), 1-8, 2019. [I.F. 1.019, Citation: 2]

[7] S.K. Mohanta, S.K. Rath, *R.K. Dwari, Surface functionalization of coal and quartz with aniline: A study on work function and frictional charge, Powder Technology, 338, 233-242, 2018. [I.F. 5.64, Citation: 6]

[8] *R.K. Dwari, S.I. Angadi, S.K. Tripathy, Studies on flocculation characteristics of chromite's ore process tailing: Effect of flocculants ionicity and molecular mass, Colloids and Surfaces A: Physico Chemical Aspect, 537, 467–477, 2018. [I.F 5.518, Citation: 25]

[9] A. Tripathy, L. Panda, A.K. Sahoo, S.K. Biswal, R.K. Dwari, A.K. Sahu, Statistical optimization study of jigging process on beneficiation of fine size high ash Indian non-coking coal, Advanced Powder Technology, 27 (4), 1219-1224, 2016. [I.F. 4.969, Citation: 20]

[10] S.K. Mohanta, B. Rout, *R.K. Dwari, P.S.R. Reddy, B.K. Mishra, Tribo-electrostatic separation of high ash coking coal washery rejects: Effect of moisture on separation efficiency, Powder Technology, 294, 292-300, 2016. [I.F. 5.64, Citation: 27]

[11] *R.K. Dwari, S.K. Mohanta, B. Rout, P.S.R. Reddy, B.K. Mishra, Studies on the effect of electrode plate position and feed temperature on the tribo-electrostatic separation of high ash Indian coking coal, Advanced Powder Technology, 26 (1), 31-41, 2015. [I.F. 4.969, Citation: 35]

[12] R.K. Dwari, D.S. Rao, P.S.R. Reddy, Mineralogical and Beneficiation Studies of a Low Grade Iron Ore Sample, Journal of The Institution of Engineers (India): Series D, 95 (2), 115-123, 2014. [I.F. 1.423, Citation: 16]

[13] 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, 23, pp. 1-5, 2013. Citation: 15. [I.F. 7.670, Citation: 46]

[14] *R.K. Dwari, D.S. Rao, A.K. Swar, P. S. R. Reddy, B. K. Mishra, Characterization of dolochar wastes generated by the sponge iron industry, International Journal of Minerals, Metallurgy and Materials, 19, 11, pp. 992-1003, 2012. [I.F. 3.850, Citation: 31]

[15] M. Das, *R.K. Dwari, S.K. Biswal, P.S.R. Reddy and B.K. Mishra , Studies on the effect of flocculant adsorption on the dewatering of iron ore tailings, Chemical Engineering Journal, 173, 2, pp. 318-325, 2011. [I.F. 16.744, Citation: 70]

[16] K. Hanumantha Rao, R.K. Dwari, S. Lu, A. Vilinska and P. Somasundaran, Mixed anionic/non-ionic collectors in phosphate gangue flotation from magnetite fines, The Open Mineral Processing Journal, 4, pp.14-24, 2011. [Citation: 22]

[17] R.K. Dwari and K. Hanumantha Rao and P. Somasundaran, Characterisation of particle tribo-charging and electron transfer with reference to electrostatic dry coal cleaning, International Journal of Mineral Processing, 91, 3-4, pp. 100-110, 2009. [I.F. 2.688, Citation: 15]

[18] R.K. Dwari and K. Hanumantha Rao, Fine coal preparation using novel tribo-electrostatic separator, Minerals Engineering, 22, 2, pp. 119–127, 2009. [I.F. 5.479, Citation: 72]

[19] R.K. Dwari and K. Hanumantha Rao, Non-coking coal preparation by novel tribo-electrostatic method, Fuel, 87, 17-18, pp. 3562–3571, 2008. [I.F. 8.035, Citation: 25]

[20] *R.K. Dwari and K. Hanumantha Rao, Characterising electron transfer mechanism in tribo-electrification of pyrite through contact angle measurements, The Open Mineral Processing Journal, 1, pp. 6-12, 2008.

[21] R.K. Dwari and K. Hanumantha Rao, Tribo-electrostatic behaviour of high ash non-coking Indian thermal coal, International Journal of Mineral Processing, 81, 2, pp. 93-104, 2006. [I.F. 2.688, Citation: 43]

[22] R. K. Dwari and K. Hanumantha Rao, Dry Beneficiation of coal-a review, Mineral Processing & Extractive Metallurgy Review, 28, pp. 177-234, 2007. [I.F. 5.284, Citation: 186]

[23] R.K. Dwari, M. N. Biswas, B. C. Meikap, Performance characteristics for particles of sand- FCC and fly-ash in a novel hydro-cyclone, Chemical Engineering Science, 59, 3, pp. 671-684, 2004. [I.F. 4.889, Citation: 46]

(*Corresponding author)

Presentation and Publication in conference proceedings

[1] N Dash, R.K. Dwari, Studies on the influence of coking coal petrography in flotation of coking coal, MPT 2019, Hyderabad

[2] G Hazare, R.K. Dwari, Studies on the coking coal flotation using bio-resource waste material as the collector, MPT 2019, Hyderabad

[3] R.K. Dwari, S.K. Mohanta, Effect on the tribo-electrostatic separation of Indian coal fines, In: Proceedings of IMPC EURASIA 2019, G Bulut Et al. Eds, Turkish Mining Development Foundation Publication, Antalya, Turkey, pp 142-150.

[4] S.K. Mohanta and R.K. Dwari, Dry tribo-electrostatic separation of coal: effect of chemical conditioning, In: Proceedings of National conference on waste to wealth in mineral and metallurgical industries WWMMI-2018, 9-10^th March 2018, Bhubaneswar.

[5] S.K. Mohanta, R.K. Dwari, Studies on the effect of chemical conditioning on the tribo-electrostatic separation of coal-quartz powder, In Abstract Proceedings of XVII International seminar on Mineral Processing Technology (MPT) 2018, ISM Dhanbad.

[6] R.K. Dwari and S.I. Angadi, Studies on the flocculation and filtration characteristics of chromites ore process tailing, In: Abstract Proceedings of XVI International seminar on Mineral Processing Technology (MPT) 2017, Mahabalipuram, Chennai, 1-3 Feb. 2017, India, pp. 237.

[7] R.K. Dwari and S.K. Mohanta, Studies on the tribo-electrostatic separator process parameter for high ash coking and non-coking coal fine preparation, In: Abstract Proceedings of XVI International seminar on Mineral Processing Technology (MPT) 2017, Mahabalipuram, Chennai, 1-3 Feb. 2017, India.

[8] S.K. Mohanta and R.K. Dwari, Studies on the effect of chemical conditioning on the tribo-electrostatic separation of coal, In: proceedings of research scholar presentation, CSIR Foundation Day, Sept. 2016, Bhubaneswar, India.

[9] A. Tripathy, S.P. Das, S.N. Sahu, P. Prusti, D. Satpathy, R.K. Dwari, S.K. Angadi, P.C. Beuria, A.K. Sahu, S.K. Biswal, Beneficiation of Indian high ash non-coking coal and its utilization in metallurgical industries, In: Abstract Proceedings of XIII International seminar on Mineral Processing Technology (MPT) 2013, Bhubaneswar, 10-12 December 2013, India, pp. 116.

[ 10] R.K. Dwari, S. Mohanta, P.S.R. Reddy and B.K. Mishra, Starch based flocculation characteristics of kaolinite using multiple light scattering techniques, In: Abstract Proceedings of XIII International seminar on Mineral Processing Technology (MPT) 2013, Bhubaneswar, 10-12 December 2013, India, pp. 74.

[11] S. Mohanta, B. Rout, R.K. Dwari, P.S.R. Reddy and B.K. Mishra, 2013, Tribo-electrostatic beneficiation of Indian coking coal, In: Proceedings of XIII International seminar on Mineral Processing Technology (MPT) 2013, Bhubaneswar, 10-12 December 2013, India, pp.619-623.

[12] M. Das, R. K. Dwari, S. K. Biswal, P.S. R. Reddy, B. K. Mishra, 2011, Multiple Light scattering Measurement- A novel approach to study the dewatering behaviour of hematite and kaolinite mineral dispersions, In: Proceedings of Research Scholar’s Day-2011, January 25, Bhubaneswar, India, pp. 8-11.

[13] K. Hanumantha Rao, R. K. Dwari, S. Lu, A. Viliniska and P. Somasundaran, 2010, Flotation of phosphate gangue from magnetic fines- Non-ionic surfactant as atrac collector modifier, In: Proceedings of XXV International Mineral Processing Congress Brisbane (IMPC) 2010, Bribane, QLD, 6-10 September 2010, Australia, ISBN:978-1-92152-22-84, pp. 1933-1943.

[14] M. Dash, R. K. Dwari, S. K. Biswal and P.S.R. Reddy. Dewatering of Iron Ore Process Tailings, In: Proceedings of National Symposium on Water Resource Management for Sustainable Development (WRMSD 2010), EDS Institute of Advance Technology & Envirnmental Studies, Bhubaneswar 19^th-21^st May 2010, ISBN: 978-93-80475-01-01, pp. 152-158.

[15] N. Suresh, R. Tiwari, P. K. Raghav, R. K. Dwari and S. I. Angadi. Hydro-cyclone performance comparison using different models, In: Proceedings of the International Seminar on Mineral Processing Technology - 2009, Oct 2009, Bhubaneswar, India.

[16] M. Das, R. K. Dwari, S. K. Biswal, P. S. R. Reddy. Dewatering of Iron ore process tailings, In: Proceedings of the International Seminar on Mineral Processing Technology - 2009, Oct 2009, Bhubaneswar, India.

[17] K. Hanumantha Rao, R. K. Dwari, A. Viliniska. Beneficiation of non-ionic surfactant in fatty acid flotation of phosphate gangue from magnetite fines, In: Proceedings of the International Seminar on Mineral Processing Technology - 2009, Oct 2009, Bhubaneswar, India.

[18] R. K. Dwari and K. Hanumantha Rao and P. Somasundaran. 2008, “Characterisation of particle tribo-charging and electron transfer with reference to electrostatic dry coal cleaning” In: SME Annual Meetings and Exhibit, 24^th-27^th Feb. 2008, Salt Lake City, Utah, USA.

[19] R. K. Dwari and K. Hanumantha Rao. Contact electrification and electrostatic separation of ash-forming minerals from high ash non-coking coal using novel fluidised bed tribo-charging system, In: Proceedings of XXIV International Mineral Processing Congress Beijing, 3, pp. 3540-2550, 2008, Beijing, China.

[20] R.K. Dwari and K. Hanumantha Rao. “Novel fluidised-bed tribo-electrostatic separator for dry coal preparation” In: Proceedings of Konference i Mineralteknik, Luleå, pp. 15-29, Feb. 2008, MinFo, Stockholm, Sweden.

[21] R. K. Dwari and K. Hanumantha Rao. “Fine coal preparation using novel tribo-electrostatic separator,” In: Proceedings of International Conference on Beneficiation of Fines and its Technologies, A. K. Mukherjee and D. Bhattacharjee Eds, pp. 81-100, Tata steel, Jamshedpur 10-11^th Dec. 2007, India.

[22] R. K. Dwari and K. Hanumantha Rao and P. Somasundaran. “A method for determining the electron transfer and charge characteristics between two contacting surfaces in tribo-electrostatic coal beneficiation,” In: Proceedings of the International Seminar on Mineral Processing Technology - 2007, N. K. Khosla and G. N. Jadhav Eds., pp. 55-59, Feb. 2007, Mumbai, India.

[23] R. K. Dwari and K. Hanumantha Rao. “An exploration on tribo-charging and electron transfer of ash forming minerals in coal by contact angle goniometry”. In: Proceedings of Konference i Mineralteknik, Luleå, pp. 41-54, Feb. 2007, MinFo, Stockholm, Sweden.

[24] R. K. Dwari and K. Hanumantha Rao. “High Ash Non Coking Coal Preparation by- Electrostatic Technique”. In: Proceedings of the International Seminar on Mineral Processing Technology-2006, G.Bhaskar Raju et al. Eds, pp. 30-41, Feb. 2006, Chennai, India.

[25] R. K. Dwari, S. K. Biswal, P. S. R. Reddy & V. N. Misra. “Characterisation of High Ash Non-Coking Coals for Electrostatic Separation”. In: Proceedings of CRSYS 2004, pp. 175-181, 25-27^th Sept. 2004, IIT Kharagpur, Kharagpur, West Bengal, India.

[26] A. K. Sahoo, S. S. Maharana, R. K. Dwari and S. K. Biswal. “Evaluation the Performance of Mineral Jig for Beneficiation of Fine Non-Coking Coal”. In: Proceedings of CRSYS 2004, pp. 157-161, 25-27^th Sept. 2004, West Bengal, IIT Kharagpur, Kharagpur, India.

[26] R. K. Dwari, M. N. Biswas, B. C. Meikap. “Performance of a Hydro-cyclone Separator for Removal of Sand-Fcc-Fly-Ash from Slurry”. In: Proceedings of CHMCON 2003, Dec. 2003, RRL Bhubaneswar, Bhubaneswar, Orissa, India.

[27] R. K. Dwari, M. N. Biswas, B.C. Meikap. “Separation of Sand and Grit from Waste Water by a Hydro-cyclone Separator”. In: Proceedings of National Seminar on Pollution and Waste Management in Ceramic and Allied Industries, pp. 39, Feb. 2003, NIT Rourkela, Rourkela, Orissa, India.

Technical Project Report/Student (Intern/B.Tech./Master) Report

1 Optimization of flotation process for Indian coking coal using advanced pneuflot flotation cell. Ministry of Steel, Gov. of India, Report No. 1198/MPD/GAP-306/SEP/2021

2 Characterization and beneficiation studies of bauxite ores to develop process flowsheet. M/s. Hindalco Industries Ltd., Lohardaga,

Jharkhand, India, Report No. 1202/MPD/SSP-386/OCT/2021

3 Evaluation of flocculants and surfactants for dewatering of fine coal. M/s. Tata Steel, Ltd. Jamshedpur, Report No. 1167/MPD/SSP-

340/Sept 2020

4 Studies on the characterization and scrubbing of bauxite ores . M/s. Hindalco Industries Ltd., Lohardaga, Ranchi, Report No.

1130/MPD/SSP-332/July/2019

5 Selection and optimization of surfactants for effective dewatering of chromite tailings. M/s. Tata Steel Ltd. Jamshedpur, Report No.

1153/MPD/SSP-303/May 2020

6 Development of zero waste technology for processing and utilization of thermal coal. CSIR-New Delhi, Report No. ESC 109/Feb 2018

7 Minerals to material sustainable planet (MINMET). Bauxite beneficiation. CSIR-New Delhi, Part report ESC 205/2018

8 Flotation studies on banded hematite and quartzite (BHQ) ore. CSIR-IMMT. Master Student Report No. PGDME 17-03/2018

9 Recovery of iron from FES dust generated in steel plant. CSIR-IMMT, Summer Internship report/ 2017

10 Dewatering studies on chromite ore process tailings. CSIR IMMT, Summer intern report/2016/RKD 1

11 Flocculation characteristics of chromite ore process tailings using multiple light scattering in the presence of polyacrylamide. CSIR IMMT, Summer intern

report/2016/RKD 2

12 Studies to establish amenability for beneficiation of low grade barite ore. M/s. GYMPEX AP BARYTES BENEFICIATION PVT LTD, Report No. 1027/MP/SSP-

275/DEC/2015

13 Development of technology to produce clean coal from high ash and high sulphur Indian coal Ministry of Steel, GOI, Report No.

1019/MP/GAP 220/October 2015

14 Development and evaluation of appropriate flotation reagents for Saudi phosphate ores, M/s. Maden, KSA SPRC/KSU/March 2015

15 Development of technology to produce clean coal from high ash and high sulphur Indian coal. Ministry of Steel, Govt. of India, Report No. 1019/MP/GAP220/Oct 2015.

16 Optimization of iron ore beneficiation plant to enhance the iron recovery. M/s. Jindal Saw Ltd., Bhilwara, Rajasthan, India. Report No.

995/MP/SSP-274/DEC/2014

17 Dewatering study of BMQ concentrate and tailings, CSIR-IMMT, Master Student Report No. PGDME 13/14 NS01.

18 Development of tribo-electrostatic separator for high ash Indian coking coal. M/s. Central Mine Planning & Design Institute Ltd., Ranchi,

Jharkhand, Report No. 992/MP/GAP-230/OCT/2014

19 Improvement in sinter productivity through deep beneficiation and agglomeration technologies for rational utilization of low grade iron

ore and fines. Ministry of Steel, Govt. of India, Report No. 987/MP/GAP-214/July/2014

20 Alternative complementary route of direct steel making with reference to Indian raw material. Ministry of Steel, Govt. of India. Report No. 970/MP/GAP-213/APR/2014.

21 Development of advanced eco-friendly energy efficient process for utilization of iron ore resources of India CSIR- New Delhi Report No.

965/NWP-31/Feb/2014

22 Development of commercial process flowsheet for beneficiation of low grade iron ore fines for pelletisation. M/s. Dr. Sarojini

Pradhan, Bhubaneswar,Report No. 871/MP/SSP-157/June/2012.

23 Characterization and beneficiation studies of bauxite ores for reduction of reactive silica and iron M/s. Vedanta Aluminium Ltd.,

lanjigarh, Odisha, Report No. 861/MP/SSP 188/MAY/2012

24 Studies on the dewatering of kaolinite dispersions using guar gum and anionic polyacrylamide flocculant. CSIR IMMT, Master student

Report No. PGDME 11/12 NS07

25 Plant sudit of non-coking coal washery to decipher the moisture balance. M/s. Global coal & mining Pvt. Ltd., South Bolanda, Talcher Report No. 875/MP/CNP-

140/JUL/2012.

26 Feasibility studies on beneficiation of low grade iron ore to prepare suitable flowsheet. M/s. Panduranga Timblo Industries, Goa Report No. 873/MP/SSP-

235/JUL/2012.

27 Development of commercial process flowsheet for beneficiation of low grade iron ore fines for pelletization. M/s. Bhusan

Power & Steel Ltd, New Delhi, Report No. 857/MP/SSP-165/APR/2012

28 To carry out the washability and flotation studies of coking coal samples to develop the commercial process flowsheet to set up the coal

washery. M/s. Jindal Steel & Power Ltd., Report No. T/MP/827/AUG/2011.

29 Studies to establish amenability for beneficiation of low grade silicious iron ore

M/s. Rawmet Commodities Pvt. Ltd., Bhubaneswar, Report No. T/MP/830/Aug/2011.

30 Development of commercial process flowsheet for beneficiation of low grade iron ore fines for pelletisation. M/s. Altrade Minerals Pvt.

Ltd., Bhubaneswar, Report No. T/MP/812/May/2011

31 Multiple light scattering measurement-A novel approach to study dewatering behavior of hematite and kaolinite mineral dispersions CSIR-IMMT, B. Tech. summer

internship report/2010

32 Laboratory Investigations on the characterisation of dolochar waste generated in sponge iron industries. State Pollution Control

Board, Odisha,Report No. T/MP/719/Aug/2009.

33 Influence of slurry properties on hydro-cyclone classification, CSIR IMMT, B. Tech. summer internship report/2009

Patents

Sl. No. Title Country Filed on (Date)/ Application No. Name of the inventors

1 Pulse bed mineral, material and

aggregate washing and classifying system India 3.4.2019/201911013441 Dr. R K Dwari

2 Device for physical separation of cenosphere India 25.9.2018/201811036003 Dr. R K Dwari

from fly ash

3 Flotation reagent from acidic olive oil USA 09.10.2020/17/016,978 S M. Al-Zahrani, A. Anis, R K Dwari

4 PULSE BED MINERAL SCRUBBER (PBMS)

Design Patent India 18.3.2021/Internal R K Dwari

ref. No. 10/D/2020,

O/o of the Design is

333419-001