DESCRIPTION :
Dr. Kali Sanjay, Chief Scientist
at the Council of Scientific and Industrial Research’s Institute of Minerals
and Materials Technology, Bhubaneswar, India, leads the Hydro, Bio &
Electrometallurgy Department, Business Development, and the Centre of
Excellence on Critical Minerals under the National Critical Mineral Mission of
the Ministry of Mines. With over three decades of experience, he specialises in
developing technologies for recovering critical metals from ores, wastes and
secondary resources. He has authored 60+ research publications, holds 7
patents, and contributed to 100 research and technology projects, resulting in
17 technologies and processes. He serves on Indian national bodies, including
committees on Critical and Strategic Minerals and Nickel and Cobalt, and chairs
a Bureau of Indian Standards committee on aluminium-industry feedstocks. His
international engagements span Australia, Canada, South Korea and Europe. He is
a Professor at the Academy of Scientific and Innovative Research, advancing
sustainable resource security.
Design and scale-up of hydrometallurgical unit operations
Process flow-sheet development to recover non-ferrous metals from low-grade ores/secondaries.
Solid wastes and effluents processing / electroremediation / electrowashing / salt-splitting.
Development of technologies for critical minerals.
AWARDS & HONOURS :Received fourth prize (Rs One lakh prize) in the ‘Grand fly
ash utilisation challenge’ contest conducted by NTPC during 2018-19.
NESA Fellowship of the Year Award 2021 during 2021-22.
Eminent Engineering Personality Award by The Institution of Engineers India (IEI) during 2022- 23.
Books /
Book chapters
1.
‘Polymetallic
Nodules’; Proceedings of National Seminar on Polymetallic Nodules, Editors:
Shashi Anand and Kali Sanjay, 2005.
2.
Book
chapter on ‘Aqueous Electrodeposition of Non-Ferrous Metals,’ Tondepu Subbaiah
and Kali Sanjay in ‘Electrodeposition: Properties, Processes, and
Applications,’ Nova Science Publishers, Inc. ISBN-10: 1614708266 & ISBN-13:
978-1614708261, 2011.
3.
Book
chapter on ‘Arsenic Removal from Industrial Effluents through Ferric Arsenate
Precipitation’ in ‘Environmental Science and Engineering, Vol. 4: Water Pollution
& Waste Water Treatment,’ Barsha Dash, Geetanjali Mishra, Kali Sanjay, and
Tondepu Subbaiah, Pages 354-363, Editor of Volume Dr. J C Singhal, Chief Editor
Dr. Bhola R Gurjar, Executive Editor Dr. J.N. Govil, Publisher Studium Press
LLC, USA, ISBN of Series 1- 62699-088-3, ISBN of Volume 1-62699-092-, 2017.
4.
Book
Chapter on ‘Kaolin: An Alternate Resource of Alumina’ in ‘Sustainable Chemical,
Mineral, and Material Processing. Lecture Notes in Mechanical Engineering,’
Routray, S., Dash, B., Sheik, A.R., Sarangi, C.K., Sanjay, K., Editor
Chinthapudi, E., Basu, S., Thorat, B.N., Springer, Singapore. https://doi.org/10.1007/978-981-19-7264-5_10,
135-144, 2022.
5.
Book
Chapter on ‘Considerations for Using Polymetallic Nodules as Alternative Metal
Extraction Resource: Focus on Energy-Related Applications’ in ‘Deep-Sea Mining and
the Water Column,’ P. K. Sen and K. Sanjay, Editor Rahul Sharma. Cham: Springer
Nature Switzerland. https://doi.org/10.1007/978-3-031-59060-3_5, 129-164, 2024.
Recent Publications
(https://scholar.google.co.in/citations?user=3MhEeZAAAAAJ&hl=en)
1.Extraction and recovery of V (V) from citrate leachate of
spent catalyst containing impurities (Mg and Fe) using tricapryl methyl
ammonium chloride, Adyasha Swain Mohapatra, Chinmaya Kumar Mohanty, Kali
Sanjay, Pankaj Kumar Parhi, Hydrometallurgy, Doi
10.1016/j.hydromet.2026.106798, June, 2026
2.Electrochemically activated intermetallic enriched
polymetallic nodules for sustainable oxygen evolution electrocatalysis; S
Mariappan, R Kiran, S Sharmila, Kali Sanjay, D Kalpana., Journal of Power
Sources, Vol 677, 239982, 15 June 2026.
3.Optimization of organic acids and organophosphorus
extractants for sustainable and selective recovery of rare earth elements from
waste permanent magnets of wind turbines. Prasanjit Das, Abdul Rauf Sheik, Kali
Sanjay, Niharbala Devi. Journal of Rare Earths, Available online March, 2026,
https://doi.org/10.1016/j.jre.2026.03.013.
4.Comparative Leaching of Rare Earth Elements from Roasted
and Unroasted End‐of‐Life HDDs Magnet and Kinetic Study Using Hydrochloric
Acid. Prasanjit Das, Abdul Rauf Sheik, Kali Sanjay, Niharbala Devi.
Environmental Quality Management, Vol 35, no 2 p e70244, December, 2025.
5.Liquid-liquid extraction of Nd (III) using [P66614][Cy272]
ionic liquid. Das Prasanjit, Kali Sanjay, Devi Niharbala. Journal of Metals,
Materials and Minerals Vol. 35. No. 2 p e2252-e2252, Aug. 2025.
6.Solvoleaching Approach for SmCo5 Alloy Scrap and
Production of Sodium Samarium Sulfate and Cobalt Oxide. Prasanjit Das, Binapani
Behera, Kali Sanjay, Niharbala Devi.
Journal of Alloys and Compounds Volume 1035, p 181469, 5 July 2025.
7.Graphitic carbon nitride loaded Bi4O5I2 for elevated
photocatalytic tetracycline degradation. Subhasish Mishra, Barsha Marandi, Kali
Sanjay, Rashmi Acharya, J Met Mater Miner, vol. 35, no. 2, p. e2261, May 2025.
8.A Novel Process for Preparing Aluminium Fluoride from Coal
Fly Ash Using Hydrofluorosilicic Acid Leaching and Seeding Techniques.
Tripathy, Anil Kumar, Sayani Adhikari, Bankim C. Tripathy, Kali Sanjay, and
Indra N. Bhattacharya. Journal of Sustainable Metallurgy, 1-13, 2025.
9.Recovery of iron as hematite and separation of trivalent
lanthanide ions from spent hard disk magnet leach liquor using [P66614][Cy272]
ionic liquid. Prasanjit Das, Binapani Behera, Kali Sanjay, and Niharbala Devi.
RSC Advances, Volume 15(2), 912-923, 2025.
10.Designing g-C3N4/NiFe2O4 S-scheme heterojunctions for
efficient photocatalytic degradation of Rhodamine B and tetracycline
hydrochloride. Subhasish Mishra, Lopamudra Acharya, S Sharmila, Kali Sanjay,
and Rashmi Acharya. Applied Surface Science Advances, Volume 24, 100647, 2024.
11.Liquid-liquid extraction and separation of light and
heavy rare earth elements from chloride solution using a mixture of tertiary
amine and phosphinic acid: recycling strategies for NdFeB magnet. Prasanjit
Das, Abdul Rauf Sheik, Kali Sanjay, and Niharbala Devi. Geosystem Engineering,
1-11, 2024.
12.Insight into Cu Extraction Using Deep Eutectic Solvent:
Reaction Mechanism. Sonidarsani Routray, Binapani Behera, Barsha Marandi, K.
Sanjay, M. K. Ghosh, and Barsha Dash.
Metallurgical and Materials Transactions B, 1-8, 2024.
13.Anoxic Manganese Bioleaching–Investigation of Scale-up
Parameters in a Stirred Bioreactor. Tejaswini Das, V. Aishvarya, N. Pradhan, K.
Sanjay. Geomicrobiology Journal, 41(9), 939-946, 2024.
14.Boosted photocatalytic accomplishment of 3D/2D
hierarchical structured Bi4O5I2/g-C3N4 pn type direct Z-scheme heterojunction
towards synchronous elimination of Cr (VI) and tetracycline. Subhasish Mishra,
Lopamudra Acharya, Barsha Marandi, Kali Sanjay, and Rashmi Acharya. Diamond and
Related Materials, Volume 142, 110834, 2024.
15.Recovery of Tellurium from Waste Anode Slime Containing
High Copper and High Tellurium of Copper Refineries. Sarangi, Chinmaya Kumar,
Abdul Rauf Sheik, Barsha Marandi, Vijetha Ponnam, Malay Kumar Ghosh, Kali
Sanjay, Manickam Minakshi, and Tondepu Subbaiah. Sustainability, no. 15, 11919,
2023.
16.Towards Solving the Complexity Associated with Continuous
Countercurrent Decantation (CCD) System in Solid-Liquid Separation Processes.
Tripathy, A.K., Behera, S.S., Marandi, B., Sahu, P., Sheik, A.R., Aishvarya,
V., Bhattacharya, I.N. and Sanjay, K., Journal of The Institution of Engineers
(India): Series D, Volume 105, pages 1223–1229, 2024.
17.High pure Co(II) precursor liquor from spent catalyst leach
liquor. R Samal, S Mahalik, S Routroy, K Sanjay, B Dash, Journal of Sustainable
Metallurgy, Volume 9, pages 972–981, 2023.
18.Photocatalytic degradation of malachite green using TiO2
and ZnO impregnated on fecal sludge derived biochar. N Tiwari, S Chakrabortty,
K Samal, S Moulick, BG Mohapatra, S Samanta, PK Mohapatra, K Sanjay, J Nayak, S
Banerjee, SK Tripathy, Journal of the Taiwan Institute of Chemical Engineers,
Volume 145, 104800, 2023.
19.Extensive investigation on extraction behaviour of organo-phosphrous
based bi-functional ionic liquids for separation of molybdenum (Mo) from spent
Co-Mo/Al2O3 leach liquor. S Mohapatra, SS Behera, S Tripathy, PK Parhi, K
Sanjay, Journal of Molecular Liquids, Volume 366, 120087, 2022.
20.Facile synthesis, characterization and application of
magnetic Fe3O4-coir pith composites for the removal of methyl violet from
aqueous solution: Kinetics, isotherm, thermodynamics and parametric
optimization. Sanjay Sarkar, Nitika Tiwari, Meerambika Behera, Sankha Chakrabortty,
Kavya Jhingran, Kali Sanjay, Shirsendu Banerjee, Suraj K. Tripathy, Journal of
the Indian Chemical Society, Volume 99, Issue 5, 100447, 2002.
21.Reclamation of tungsten from spent HDS catalyst: a
detailed study, Mahalik, Surjeet, A. R. Sheik, Barsha Dash, C. K. Sarangi, and
K. Sanjay, Indian Chemical Engineer Pages 416-429, 2022.
22.Ionic mass transfer at point electrodes located at
cathode support plate in an electrorefining cell in presence of rectangular
turbulent promoters, Subbaiah, T., P. Vijetha, B. Marandi, K. Sanjay, and M.
Minakshi., Sustainability 14, no. 2 , 880, 2022.
23.Recovery of Lead as Lead Sulphide from Anode Slime Using
Hydrometallurgical Technique, Mishra, G., B. Dash, A. R. Sheik, C. K. Sarangi,
P. Vijetha, K. Sanjay, M. K. Ghosh, and T. Subbaiah., Journal of The
Institution of Engineers (India): Series D 102, no. 2 489-494, 2021.
24.Citric acid mediated leaching kinetics study and
comprehensive investigation on extraction of vanadium (V) from the spent
catalyst, Mohanty, C., S. S. Behera, B. Marandi, S. K. Tripathy, P. K. Parhi,
and K. Sanjay, Separation and Purification Technology 276, 119377, 2021.
25.Sorptive removal of malachite green from aqueous solution
by magnetite/coir pith supported sodium alginate beads: Kinetics, isotherms,
thermodynamics and parametric optimization, Sanjay Sarkar, Nitika Tiwari,
Aradhana Basu, Meerambika Behera, Bhaskar Das, Sankha Chakrabortty, Kali
Sanjay, Mrutyunjay Suar, Tapan Kumar Adhya, Shirsendu Banerjee, Suraj K
Tripathy, Environmental Technology & Innovation, Volume 24, 101818, 2021
26.Manganese enrichment of polymetallic oceanic nodules via
selective leaching process for energy storage applications, Priyanka Mukherjee,
Sushree Pattnaik, Kali Sanjay, Mamata Mohapatra, Journal of Chemical Technology
& Biotechnology, Vol 96(5), 1246-1257, 2021
27.Synthesis of iron molybdate from molybdenum spent
catalyst and evaluation of its electrochemical properties, Rasmita Barik,
Priyanka Mukherjee, Kishor Kumar Sahu, Kali Sanjay, Malay Kumar Ghosh, Mamata
Mohapatra, Environmental Progress & Sustainable Energy, Vol 40 (3), 13560,
2021.
28.An anionic and cationic surfactant-assisted hydrothermal
synthesis of cobalt oxide nanoparticles as the active electrode material for
supercapacitors, RR Samal, Aneeya K Samantara, S Mahalik, JN Behera, B Dash, K
Sanjay, New Journal of Chemistry, Vol 45 (5), 2795-2803, 2021.
29.Solvent Extraction of Copper Enhanced by Mixing Cavities
in Micromixer, Abdul Rauf Sheik, Amol A Kulkarni, Kali Sanjay, Solvent
Extraction Research and Development, Japan, Vol 28 (1), 37-47, 2021.
30.Unravelling for 1st time electrochemical sensing of As
(III) by 3D cavitized kagome type lattice, Priyanka Mukherjee, Benjamin Raj,
Arun Kumar Padhy, Kali Sanjay,
Suddhasatwa Basu, Mamata Mohapatra, Journal of Electroanalytical
Chemistry, Volume 877, 114725, 15 November 2020.
31.Leaching of Rare Earth Elements from the Residue
Generated by the Lixiviation of Waste Phosphor with Sulphuric Acid, A Anand, R
Singh, J Samantray, MK Ghosh, K Sanjay, Transactions of the Indian Institute of
Metals,1-11, 2020.
32.A pyro-hydrometallurgical process for the recovery of
alumina from waste aluminium dross, A K Tripathy, S Mahalik, C K Sarangi, B C
Tripathy, K Sanjay, IN Bhattacharya, Minerals Engineering, Vol 137, 181-186,
2019.
33.Sodium fluoride assisted acid leaching of coal fly ash
for the extraction of alumina, AK Tripathy, B Behera, V Aishvarya, A R Sheik, B
Dash, C K Sarangi, B C Tripathy, K Sanjay, I N Bhattacharya, Minerals
Engineering, Vol 131, 140-145, 2019.
34.Raman analysis of the formation of dithionate during
copper electrowinning, Tondepu Subbaiah, Chinmaya Kumar Sarangi, Kali Sanjay,
Manickam Minakshi Sundaram, World of Metallurgy – ERZMETALL, Vol. 71, Issue. 2,
92-98, 2019.
35.Leaching and Preparation of Co-Mo Sulfide/Oxide
Nanoparticles from Spent Catalyst, Mamata Mohapatra, Suchismita Sahu, Rasmita
Barik, Eliza Padhan, Priyanka Mukherjee, Mahasweta Moharana, Alfara A. Baba,
Kali Sanjay, JOM, Vol. 70, No. 10, 1-7, 2018.
36.Factorial design for process optimization and generation
of kinetic data for yttrium and europium leaching, Amit Anand, Randhir Singh,
Malay Kumar Ghosh, Kali Sanjay, Mineral Processing and Extractive Metallurgy,
1-9, 2018.
37.Recovery of dimethylglyoxime (DMG) from Ni-DMG complexes,
Meenakshi Rath, Laxmi Priya Behera, Barsha Dash, Abdul Rauf Sheik, Kali Sanjay,
Hydrometallurgy, Vol 176, 229–234, 2018.
38.Influence of synthesis temperature on the growth and
surface morphology of Co3O4 Nanocubes for supercapacitor applications,
Rashmirekha Samal, Barsha Dash, Chinmaya Kumar Sarangi, Kali Sanjay, Tondepu
Subbaiah, Gamini Senanayake, Manickam Minakshi, Nanomaterials, Vol 7(11), 356,
2017.
39.Electrochemical fencing of Cr (VI) from industrial wastes
to mitigate ground water contamination, N Shukla, MK Harbola, K Sanjay, R
Shekhar, Transactions of the Indian Institute of Metals, Vol 70 (2), 511-518,
2017.
40.Branched Platinum Nanostructures on Reduced Graphene: An
excellent Transducer for Nonenzymatic Sensing of Hydrogen Peroxide and
Biosensing of Xanthine, Tapan Kumar Behera, Subash Chandra Sahu, Biswarup
Satpati, Bamaprasad Bag, Kali Sanjay, Bikash Kumar Jena, Electrochimica Acta,
Vol 206, 238–245, 2016.
41.Processing Nigerian pyrolusite ore, Part I:
Characterization and dissolution kinetics analysis, A. A. Baba, L. Ibrahim, R.
B. Bale, A. G. F. Alabi, F. A. Adekola, M. K. Ghosh, K. Sanjay, and A. R.
Sheik, Canadian Institute of Mining, Metallurgy and Petroleum Journal, Vol
7(1), 43-51, 2016.
42.Micellar mediated selective leaching of manganese nodule
in high temperature sulfuric acid medium, R. Barik, K. Sanjay, B.K. Mishra, M.
Mohapatra, Hydrometallurgy, Vol 165(1), 44–50, 2016.
43.Reactor and column leaching studies for extraction of
copper from two low grade resources: A comparative study, Sandeep Panda,
Geetanjali Mishra, Chinmaya Kumar Sarangi, Kali Sanjay, Tondepu Subbaiah, Subir
Kumar Das, Kadambini Sarangi, Malay Kumar Ghosh, Nilotpala Pradhan, Barada
Kanta Mishra, Hydrometallurgy, Vol 165(1), 111–117, 2016.
44.Electrolytic manganese dioxide (EMD): a perspective on
worldwide production, reserves and its role in electrochemistry, Avijit Biswal,
Bankim Chandra Tripathy, Kali Sanjay, Tondepu Subbaiah and Manickam Minakshi,
RSC Adv., 5, 58255–58283, 2015.
45.Aluminium recovery from NALCO fly ash by acid digestion
in the presence of fluoride ion, A.K. Tripathy,C.K. Sarangi, B.C. Tripathy, K.
Sanjay, I.N. Bhattacharya, B.K. Mahapatra, P.K. Behera, B.K. Satpathy,
International Journal of Mineral Processing, Vol 138, 44–48, 10 May 2015.
46.Recovery of Co metal and Electrolytic Manganese Dioxide
(EMD) from Co–Mn sludge, A. Biswal, S. Mahakud, Sandhyarani Bhuyan, B. Dash,
C.K. Sarangi, Kali Sanjay, B.C. Tripathy, T. Subbaiah, I.N. Bhattacharya,
Sung-Ho Joo, Shun Myung Shin, K.H. Park, Hydrometallurgy, Vol 152, 159–168,
2015.
47.Ligand mediated eco-friendly leaching of zinc from spent
catalyst in alkaline media, M. Mohapatra, Banaja Nayak, K. Sanjay, T. Subbaiah,
B.K. Mishra, Journal of Industrial and Engineering Chemistry, Vol 20, Issue 4,
2217–2223, 2014.
48.Electro-crystallization of Antimony from Acidic and
Alkaline Baths in Diaphragm-less Cell, Chinmaya Kumar Sarangi, Ayonbala Baral,
Jayasmita Panigrahi, Kali Sanjay, Tondepu Subbaiah, Barada Kanta Mishra,
Advanced Materials Research, Vol. 828, 65- 72, 2014.
49.Behaviour of arsenic(III) and antimony(III) during
electrowinning of nickel from aqueous sulphate solutions; R.R. Samal, C.K. Sarangi,
B.C. Tripathy, K. Sanjay, I.N. Bhattacharya, T. Subbaiah., Hydrometallurgy,
Vol. 139, 39-45, 2013.
50.Aqueous processing of nickel spent catalyst for a value
added product; Sheik, A.R., Ghosh, M.K., Sanjay, K., Subbaiah, T., Mishra,
B.K., Baba, A.A.; Korean Journal of Chemical Engineering, Vol. 30 (2), 400-404,
2013.
51.Extraction of Cu and Cr from a spent Cu–Cr catalyst:
Recovery enhancement through mechanical activation; Swaroopa, S., Ghosh, M. K.,
Sanjay, K. and Mishra, B. K. Hydrometallurgy, Vol. 136, 8–14, 2013.
52.Extraction of Ni (II) from Spent Hydrodesulfurization HDS
Catalyst Through Leaching and Electroless Precipitation of Ni(OH)2., Pradhan,
S.R., Dash, B., Sanjay, K., Subbaiah, T. Metallurgical and Materials
Transactions B: Process Metallurgy and Materials Processing Science, Vol.
44(2), 469-476, 2013.
53.Dissolution kinetics of nickel from spent catalyst in
nitric acid medium. Sheik, A.R., Ghosh, M.K., Sanjay, K., Subbaiah, T., Mishra,
B.K. Journal of the Taiwan Institute of Chemical Engineers, Vol. 44, Issue 1,
34-39, 2013.
54.Influence of the microstructure and its stability on the
electrochemical properties of EMD produced from a range of precursors, A
Biswal, BC Tripathy, K Sanjay, D Meyrick, T Subbaiah, M Minakshi, Journal of
Solid State Electrochemistry 17 (12), 3191-3198, 2013.
55.Influence of alternative alkali reagents on Fe removal
during recovery of Mn as Electrolytic Manganese Dioxide (EMD) from Mn sludge,
Avijit Biswal, Barsha Dash, BC Tripathy, T Subbaiah, Shun Myung Shin, Kali
Sanjay, BK Mishra, Hydrometallurgy 140, 151-162, 2013.
56.Insights into heap bioleaching of low grade chalcopyrite
ores — A pilot scale study., S. Panda, K. Sanjay, L.B. Sukla, N. Pradhan, T.
Subbaiah, B.K. Mishra, M.S.R. Prasad,
57. S.K. Ray.,
Hydrometallurgy., Vol. 125-126., 157-165, 2012.
58.Electrokinetic cleaning of industrial residues; Sanjay,
K., Shekhar, R.; Transactions of the Institutions of Mining and Metallurgy,
Section C: Mineral Processing and Extractive Metallurgy, Vol 121 (2), 117-120,
2012.
59.Electroosmotic pump: Rate controlling mechanism for
unusually fast electroremediation kinetics of Cr(VI) in basic Kanpur soil;
Sanjay Kali, R.P. Das, Rajiv Shekhar; Electrochimica Acta, Vol 86, 80-88, 2012.
International
A process for extraction
of nickel from low-grade chromite ore (International Patent Numbers: European
Patent (EP1697549 B1); Australian Patent (AU 2002348824 B2); Indian patent
(234452 (0483/DEL/2003)).
An electrochemical system
and process for the reduction of nitric acid concentration using electrolytic
cell (Patent File No. 3198/DEL/2012; US 20150291451 A1; WO 2014057505 A4).
Hydrometallurgical
process for the recovery of tellurium from high lead-bearing copper refinery
anode slime. (Paten File No: 2459DEL2013; US Patent App. US20150053572 A1).
Indian
A process for production
of crystalline boehmite by precipitating from supersaturated sodium aluminate
liquor under atmospheric conditions at a temperature as low as 500C (Patent No.
267384 Dated 28/07/2015).
An improved process for
the continuous conversion of Fe (III) present in phosphoric acid to Fe(II) by
electrolytic reduction (Patent File
No.0063/DEL/2008).
A pyro-hydrometallurgical
process for the recovery of alumina and calcium silicate from flyash (Patent
File No: 0252NF2015)
Research Projects
Projects completed as Project Leader
1. ‘Detailed Engineering Design of Solvent
Extraction – Electrowinning for extraction of cobalt from super alloy scraps:
200 kg/day capacity’. M/s Rubamin Ltd., Baroda.
2. ‘Modelling of the electrorefining cell in the
pyroprocessing demonstration facility’, IGCAR (DAE), Kalpakkam.
3. ‘Development of electrochemical mixer-settler
and optimization studies for the recovery of palladium from high-level liquid
waste’, IGCAR (DAE), Kalpakkam.
4. ‘Extraction of Tungsten values from Hutti gold
mine tailings concentrate and scrap: process flow sheet development, bench
scale studies and pilot scale testing’; Defense Metallurgical Research
Laboratory (DRDO), Hyderabad.
5. ‘Recovery of alumina from Fly ash –
modifications and validation of flow sheet’; National Aluminium Company Ltd.
(NALCO), Bhubaneswar.
6. ‘Recovery of Electrolytic Manganese Dioxide
(EMD) from Manganese Ore: Process optimization for existing plant at MOIL,
alternate process development and Basic Engineering Package preparation’;
Manganese Ore India Ltd. (MOIL), Nagpur.
7. ‘Technology transfer of cobalt manufacture’;
Mishra Dhatu Nigam Limited, (MIDHANI), Hyderabad.
8. ‘Evaluation of suitability of Nano iron/ iron
oxide powders for energy and sensor applications’; National Minerals
Development Corporation (NMDC), Hyderabad.
9. ‘Cobalt technology from impure cobalt
hydroxide: Process flow sheet development’; Mishra Dhatu Nigam Limited
(MIDHANI), Hyderabad.
10. ‘Technology development, demonstration and
shifting of 1000 cm2 EM cell for splitting of sodium sulphate solution to
sodium hydroxide and sulphuric acid’; Heavy Water Board, Mumbai.
11. ‘Electroremediation of soils contaminated with
heavy metals / organic pollutants and radio nuclides’, CSIR Taskforce.
12. ‘Waste to wealth through Hydro &
Electrometallurgical processing’, CSIR Non-network project.
13. ‘Engineering consultancy work for development
of Electrolytic – Membrane process for conversion of effluent sodium sulphate
solution to sodium hydroxide and sulphuric acid‘; HWB (DAE), Mumbai.
14. ‘Multifunctional electrodes and electrolytes
for futuristic electrochemical technologies’; CSIR XII plan (CSC0101), New
Delhi.
15. ‘Feasibility studies to recover Mn metal from
low grade Mn ore’; TATA Steel Ltd., Jamshedpur.
16. ‘Process scale-up and feasibility study for
improving Mn/Fe ratio of low grade manganese ore’; TATA Steel Ltd., Jamshedpur.
17. ‘Evaluation of design parameters for dewatering
of manganese nodules’; National Institute of Ocean Technology (NIOT), Chennai.
18. ‘Recovery of alumina from Fly ash’; CSIR (FTT
Project).
19. ‘Technology Development for holistic
utilization of Red Mud’; HINDALCO, NALCO and VEDANTA.
20. ‘Process development and bench scale testing
for recovery of Lithium and Cobalt from spent Lithium batteries’; Excel
Industries Ltd. Mumbai.
21. ‘Recovery of copper from copper oxide ore’;
Onshore Construction Company Pvt. Ltd., Mumbai
22.
‘Feasibility Studies for Preparation of Fused Magnesia from Kimberlite
Tailings’; NMDC Hyderabad.
23. ‘Titanium dioxide recovery and waste management
from vanadiferrous titano-magnetite and ilmenite concentrates’; Commonwealth
Scientific and Industrial Research Organisation (CSIRO) Australia.
24. ‘Upscaling of Nd metal/Nd-Pr production along
with other rare earth metals (La,Ce) and their alloys by Molten Salt
Electrolysis routes (Phase I)’; CSIR, New Delhi
25. ‘Scale-up study of electrolysis of Cuprous
chloride (Phase I)’; ONGC Energy Center, Mumbai.
Ongoing projects
26. ‘Technology development (Extractive metallurgy)
for Polymetallic nodules (PMN)’ (Project Leader); Ministry of Earth Sciences,
Govt. of India.
27. ‘Advanced recovery of the battery materials and
REE from ores and wastes’ (AISRF Round 14) (Project Leader); Indo-Australian
Project, Department of Science & Technology, Govt. of India.
28. ‘Setting up of pilot cum demonstration plant
for recovery of alumina and value-added products from fly ash’ (Project
Leader); Ministry of Mines, NALCO & CSIR.
29. Characterisation and Feasibility of Recovering
Trace and Rare Earth elements from Coal/Fly Ash /bottom ash, Shale, Clay,
Sandstone, and Granite Rocks, (Project Leader); Singareni Collieries Company
Ltd.
30. ‘Process design for Se, Te, Cu Recovery’
(Co-Project Leader); Sterlite copper, Silvassa plant, A unit of Vedanta Ltd,
Silvassa.
31. ‘Plant Audit of MALCO Energy Limited-Nickel
Business Unit’ (Co-Project Leader); MALCO Energy Limited (MEL), A unit of
Vedanta Ltd, Silvassa.
32. ‘Production of Ferro-Titanium alloy from
Bauxite residue by recovery and matrix change of the metal values’; (Co-Project
Leader); NALCO Bhubaneswar.
33. ‘Shipboard-based nodule sieving and dewatering studies and prototype design
development’; (Co-Project Leader); NIOT Chennai.
34. ‘Study on breakage/ degradation of Polymetallic
Nodules during vertical slurry transport through a pipe’; (Co-Project Leader);
NIOT Chennai.
35. ‘Recovery of Dehydrated Magnesium Chloride
Using Sea Water Bitterns at Relatively low Temperatures in Pilot Scale’; (Co-Project
Leader); CSIR.
36. ‘Solvent Extraction (SX) Pilot Plant for REE
Separation’ (Co-Project Leader); CSIR.
37. ‘An advanced technology for improvement in
alumina productivity: Scale-up testing and process validation’; (Member),
Vedanta Ltd.
38. ‘Hematite production and recovery of valuable
metals from Jarosite’ (Co-Project Leader); Hindustan Zinc Ltd. Udaipur
39. ‘Recovery of Selenium and Tellurium from anode
slimes (Co-Project Leader); Sterlite copper, Silvassa plant, A unit of Vedanta
Ltd, Ministry of Mines, CSIR.
40. ‘Recovery of Copper from low-grade copper ores:
oxide and sulfide ores’ (Co-Project Leader); CSIR.
41. ‘Recovery of Co and Ni from Chromite Overburden
and residue utilization’ (Co-Project Leader); CSIR.
42. ‘Recovery of vanadium from pet coke ash, spent
vanadium catalyst and vanadium concentrate’ (Co-Project Leader); CSIR.
43. Extraction of sand and other minerals from
Overburden and Carbonaceous Wastes, (Co-Project Leader); NTPC Mining Ltd.
44. Extraction of minerals from Thermal Flyash- Phase
I, (Co-Project Leader); NTPC Mining Ltd.
45. Pilot scale testing of Process flow sheet for
Preparation of Anhydrous Magnesium Chloride from Sea Water Bitterns,
(Co-Project Leader); Naval Research Board (DRDO)
Projects completed as Co-Principal Investigator
(Co-PI) / Activity in-charge / Member
46. Nickel Technology Proving Plant at RRL by GTZ-
CSIR-HZL (10 tpd raw material processing ‘Technology Proving Plant’), German
Agency for Technical Collaboration (GTZ), CSIR & HZL
47. Development of process for extraction of Cu,
Ni, Co & Mn from deep sea ocean nodules and testing in pilot scale
(Technology Proving Plant in a scale of 500 kg/day nodules), Ministry of Earth
Sciences, New Delhi
48. Advice on processing of secondary
cobalt-containing materials, M/s Rubamin Ltd, Baroda
49. Literature survey on electrolytic nickel
hydroxide, M/s Techno Chemicals, Mumbai
50. Preparation of engineering package for a 1200
tpa nickel electrowinning plant, M/s NICOMET Ind. Ltd., Mumbai
51. Pressure leaching of Ni-Co sulphides of M/s
Nicomet Industries Ltd, M/s NICOMET Ind. Ltd. , Mumbai
52. Development of a process for recovery of metal
values from dust and sludges of Durgapur Steel Plant, RDCIS, SAIL, Ranchi
53. Preparation of Nickel Hydroxide suitable to
Nickel Cadmium and Nickel metal hydride batteries, MNES, New Delhi
54. Solid and liquid waste inventorisation,
characterization and disposal plan for the proposed second phase expansion for
NALCO production and handling plants. (Smelter at ANGUL), National Aluminium
Company Ltd. (NALCO), Bhubaneswar
55. Basic study on precipitation of Boehmite,
National Aluminium Company Ltd. (NALCO), Bhubaneswar
56. Technical know-how and experimental back up for
electrolytic reduction of iron (III) present in phosphoric acid to iron (II)
state, Heavy Water Board (DAE)
57. Prevention of coal dust at mechanical coal
handling plant, Paradip Port Trust, Odisha
58. Recovery of copper and tellurium from secondary
raw materials, M/s Grishma Special Chemicals, Mumbai
59. Development and design of diaphragm-less cells
for electrolytic acid killing, IGCAR (DAE), Kalpakkam
60. Recovery of copper from copper bearing slag
tailings, Aditya Birla Copper, Mumbai
61. Chromite recovery from COB plant tailings and
sub grade chromite ore, Jindal Stainless Steel, Bhubaneswar.
62. Consultancy assistance for setting up of the
500TPD commercial chromite beneficiation plant and to assist its flotation
plant performance evaluation, Jindal Stainless Steel, Bhubaneswar
63. Laboratory scale study on alumina trihydrate
productivity using catalyst, National Aluminium Company Ltd. (NALCO),
Bhubaneswar
64. Collection characterization and screening of
potential micro algae from West Bengal and Odisha coast and pilot scale
demonstration of algal oil production, Department of Biotechnology, New Delhi
65. Microbial desulphurization of calcined
petroleum coke (Phase I & II), ALCOA, USA
66. Laboratory testing of copper oxide ore, Oman,
Engineers India Ltd., New Delhi
67. Production of manganese sulphate from low grade
manganese ore of Gujarat by non-conventional leaching techniques, Gujarat
Mineral Development Corporation (GMDC), Gujarat
68. Globally competitive chemical processes and
products, CSIR taskforce project
69. Consultancy for installation and commissioning
of a commercial plant to produce 8 tpd of high pure Cu cathode through acid
leaching – electrowinning route, M/s ASSM General Trading Company, UAE
70. Recovery of nickel from chromite over burden of
Orissa Mining Corporation, Orissa Mining Corporation, Bhubaneswar
71. Detailed Design, Inspection, Testing and
Commissioning of Electrolytic Reduction Cell Assembly for TDP at RCF, Trombay,
Heavy Water Board (DAE), Mumbai
72. Nickel recovery from refinery electrolyte
(Phase- I&II), Hindalco Industries (Birla copper unit), Dahej.
73. Recovery of tellurium powder from anode slimes,
Hindalco Industries (Birlacopper unit), Dahej.
74. Recovery of lead from anode slimes, Hindalco
Industries (Birla copper unit), Dahej
75. Basic engineering process package for recovery
of tellurium powder and removal of lead from anode slimes, Hindalco Industries
(Birla copper unit), Dahej
76. Metallurgical test work on recovery of Cu from
leach residue, M/s. Chandra Proteco Ltd., Silvassa, India
77. Preparation of techno-economic feasibility
report for 700 tpd low grade rock phosphate ore beneficiation plant for RSMML,
Rajasthan, Rajasthan State Mines & Minerals Ltd., Udaipur, Rajasthan
78. Recovery of copper from copper bearing slag
tailings, Aditya Birla Copper, Mumbai
79. Preparation and characterization of EMD
suitable for batteries from slurry containing Mn and Co, KIGAM, South Korea
80. Recycling of Lithium ion batteries, Renault
Nissan Technology, Chennai
81. An investigation on recovery of alumina in
NALCO fly ash through pyro-hydrometallurgical / bioprocessing methods, National
Aluminium Company Ltd. (NALCO), Bhubaneswar
82. Electrochemical process for improving
productivity of alumina in Bayer liquor, National Aluminium Company Ltd.
(NALCO), Bhubaneswar.
83. Recyclability strategy of value added
utilization of iron/ manganese ore tailing /low grade ore: evaluation of energy
storage capacities, Ministry of Mines, Govt. of India
84. Processing of secondary resources for the
production of battery materials, CSIR-FTT Project
85. Manganese nodules slurry characteristics and
pumping studies for vertical transport, NIOT, Chennai
86. Multi-helical microfluidic system for
integrated extraction- separation of metal ions, Department of Science and
Technology (DST), Govt. of India
87. Feasibility of bauxite leaching under high
temperature conditions, HINDALCO Industries Limited, Belagavi
88. Preparation of Basic Engineering Package (BEP)
for setting up of pilot plant on use of fly ash/pond ash for production of wear
resistant ceramic tiles, National Aluminium Company Ltd. (NALCO), Bhubaneswar
89. Optimization of process for the treatment of
Spent Pot Lining carbon for the recovery of valuables and bench scale testing,
National Aluminium Company Ltd. (NALCO), Bhubaneswar
90. Development of process for the production of
pure and white Alumina Tri Hydrate (ATH) for solid surface application,
National Aluminium Company Ltd. (NALCO), Bhubaneswar
91. Sedimentation studies, up-scale testing and
basic engineering for thickener for treatment of Mn ore fines, Manganese Ore
India Limited (MOIL), Nagpur
92. Feasibility Laboratory Studies for Liberator
Cake Quality Improvement and Copper Electrowinning Process Optimisation in Cu
refinery at Dahej, HINDALCO Birla Copper Unit, Dahej
93. Electrolytic-membrane process for the
production of hydrogen from seawater (Phase I: Laboratory scale optimization),
ONGC Energy Centre, Mumbai
94. Kinetic studies of different unit operations
(desilication, digestion, and precipitation) of Bayer process at NALCO,
National Aluminium Company Ltd. (NALCO), Bhubaneswar.
Technology / Process / Know-how developed
1. Recovery of
copper from copper oxide ore from DR Congo and providing Basic Engineering
Process Package for 12000 TPA Cu extraction plant and associated cobalt, 2025,
Onshore Construction Company Pvt. Ltd., Mumbai
2. Process
development and bench scale testing for recovery of Lithium and Cobalt from
spent Lithium batteries, 2025, Excel Industries Ltd. Mumbai
3. Recovery of
Co and Ni values from scrap, 2025 MIDHANI, Hyderabad
4. Recovery of
Co from impure Co hydroxide cake, 2025 MIDHANI, Hyderabad
5. Recovery of
Electrolytic Manganese Dioxide (EMD) from Manganese Ore: Process optimization
for existing plant at MOIL, alternate process development and Basic Engineering
Package preparation, 2022, MOIL, Nagpur
6. Recovery of
tungsten from scrap and Hutti gold mine tailings, 2020 DMRL (DRDO),
7. Hyderabad
8. Recovery of
alumina, silica and iron values from Indian fly ash, 2019, National Aluminium
Company (NALCO), Bhubaneswar
9. Splitting of
sodium sulphate bearing effluent through electro-membrane process for the
production of sodium hydroxide and sulphuric acid, 2017, M/s Heavy Water Board,
Mumbai
10. Recovery of
Pd from spent nuclear fuel effluent (high-level liquid waste) using ionic
liquids, 2015, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam
11. Recovery of
high pure Te, Cu and Pb from anode slime, 2012, M/s Hindalco Industries Ltd.,
Dahej, Gujarat.
12. Electrochemical
reduction cell assembly design. ,
2008 M/s Heavy Water Board, Mumbai
13. Chromite
recovery from COB plant tailings and sub-grade chromite ore, 2008, M/s Jindal
Stainless Steel Limited, Bhubaneswar
14. Recovery of
Ni and Co from Chromite Overburden (COB) through reduction roasting-ammoniacal
leaching route, 2003, CSIR, Hindustan Zinc Ltd., GTZ- Germany
15. Recovery of
Cu, Ni and Co from polymetallic nodules through ammonia- ammonium
sulphate-sulphur dioxide leaching route, 2000, Ministry of Earth Sciences, New
Delhi
16. Recovery of
cobalt carbonate from cobalt bearing slag of South Africa, 1998, M/s Shalina
Trading Corporation Ltd., Mumbai
17. Recovery of
cobalt from super alloy scrap/sludge., 1997, M/s Rubamin Ltd., Baroda
18. Production
of Copper cathode from secondary sources, 1997, M/s Hydromet India Ltd,
Kancheepuram