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  • Dr. Kali Sanjay, Chief Scientist - Head 9338291970, ,  


    Dr. Kali Sanjay is having twenty eight years of experience in the field of extractive metallurgy, specifically in process flow-sheet development to recover non-ferrous metals from low-grade ores/secondaries, design and scale-up of hydrometallurgical plants, solid waste remediation, utilization of industrial effluents and computational fluid dynamics. Additionally, he has been working as Professor, Faculty of Engineering Sciences at CSIR-IMMT, Bhubaneswar for Academy of Scientific and Innovative Research (AcSIR) since 2011, teaching a postgraduate course on ‘Recycling of Material Resources’ and supervising M.Tech/Ph.D thesis works. Dr. Sanjay has been associated with 56 projects as a project leader, coordinator, or as activity in-charge, carried successfully liasioning with external agencies, project planning, and implementation. At present, he is leading projects on strategic, industrial, government, and CSIR projects at CSIR-IMMT, Bhubaneswar with a budget of above Rs 50 crores for a period of three years.

    • 1993 to 1998 Jr. Scientist.
    • 1998 to 2002 Scientist.
    • 2002 to 2006 Sr. Scientist.
    • 2006 to 2012 Principal Scientist.
    • 2012 to 2017 Sr. Principal Scientist.
    • 2017 to continuing Chief Scientist

    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.

    1. Received fourth prize (Rs One lakh prize) in the ‘Grand fly ash utilization challenge’ contest conducted by NTPC during 2018-19.

    Books / Book chapters

    ‘Polymetallic Nodules’; Proceedings of National Seminar on Polymetallic Nodules, Editors : Shashi Anand and Kali Sanjay, 2005.

    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.

    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.


    1.     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. TripathyJournal of the Indian Chemical Society 99.5, 100447,2002.

    2.     Reclamation of tungsten from spent HDS catalyst: a detailed study, Mahalik, Surjeet, A. R. Sheik, Barsha Dash, C. K. Sarangi, and K. SanjayIndian Chemical Engineer 1-14, 2022.

    3.  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 ,Art-880, 2022

    4.    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.

    5.   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. SanjaySeparation and Purification Technology 276, 119377, 2021.

    6.  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

    7.     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

    8.  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

    9.    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

    10. Solvent Extraction of Copper Enhanced by Mixing Cavities in Micromixer, Abdul Rauf SheikAmol A KulkarniKali Sanjay, Solvent Extraction Research and Development, Japan, Vol 28 (1), 37-47, 2021

    11.  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.

    12.  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

    13. 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.

    14. 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.

    15. 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.

    16. 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.

    17. 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.

    18.  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.

    19. 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.

    20. 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.

    21. 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.

    22. 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.

    23.  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.

    24. 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.

    25.  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.

    26. 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.

    27.  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.

    28. 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.

    29. 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.

    30. 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.

    31. 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.

    32. 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.

    33. 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.

    34. 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.

    35.  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.

    36.  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.

    37. 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, S.K. Ray., Hydrometallurgy., Vol. 125-126., 157-165, 2012.

    38.  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.

    39. 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.



    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).



    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)


    Ongoing projects

    1. ‘Technology development (Extractive metallurgy) for Polymetallic nodules (PMN)’ (Project Leader); Ministry of Earth Sciences, Govt. of India.

    2. ‘Recovery of Electrolytic Manganese Dioxide (EMD) from Manganese Ore: Process optimization for existing plant at MOIL, alternate process development and Basic Engineering Package preparation’; (Project Leader); Manganese Ore India Ltd. (MOIL), Nagpur.

    3. ‘Technology transfer of cobalt manufacture’; (Project Leader); Mishra Dhatu Nigam Limited, (MIDHANI), Hyderabad.

    4. ‘Evaluation of suitability of Nano iron/ iron oxide powders for energy and sensor applications’; (Project Leader); National Minerals Development Corporation (NMDC), Hyderabad.

    5. ‘Cobalt technology from impure cobalt hydroxide: Process flow sheet development’; (Project Leader); Mishra Dhatu Nigam Limited (MIDHANI), Hyderabad.

    6. ‘Technology Development for holistic utilization of Red Mud’ (Project Leader); HINDALCO, NALCO and VEDANTA.

    7. ‘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’; (Co-Project Leader); National Aluminium Company Ltd. (NALCO), Bhubaneswar

    8. ‘Optimization of process for the treatment of Spent Pot Lining carbon for the recovery of valuables and bench scale testing’; (Co-Project Leader); National Aluminium Company Ltd. (NALCO), Bhubaneswar

    9. ‘Development of process for production of pure and white Alumina Tri Hydrate (ATH) for solid surface application’; (Co-Project Leader); National Aluminium Company Ltd. (NALCO), Bhubaneswar

    10. ‘Sedimentation studies, up-scale testing and basic engineering for thickener for treatment of Mn ore fines’; (Co-Project Leader); Manganese Ore India Ltd. (MOIL), Nagpur.


    Projects completed as Project Leader /Co-Project Leader/Activity in-charge/Member

    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).

    5. ‘Recovery of alumina from Fly ash – modifications and validation of flow sheet’; National Aluminium Company Ltd. (NALCO), Bhubaneswar.

    6. ‘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.

    7. ‘Electroremediation of soils contaminated with heavy metals / organic pollutants and radio nuclides’, CSIR Taskforce.

    8. ‘Waste to wealth through Hydro & Electrometallurgical processing’, CSIR Non-network project.

    9. ‘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.

    10. ‘Multifunctional electrodes and electrolytes for futuristic electrochemical technologies’; CSIR XII plan (CSC0101), New Delhi.

    11. ‘Feasibility studies to recover Mn metal from low grade Mn ore’; TATA Steel Ltd.,  Jamshedpur.

    12. ‘Process scale-up and feasibility study for improving Mn/Fe ratio of low grade   manganese ore’; TATA Steel Ltd., Jamshedpur.

    13. ‘Evaluation of design parameters for dewatering of manganese nodules’; National Institute of Ocean Technology (NIOT), Chennai.

    14. ‘Recovery of alumina from Fly ash’; CSIR (FTT Project).

    15. ‘Nickel Technology ProvingPlant at RRL by GTZ-CSIR-HZL ‘ (10 tpd raw material processing ‘Technology Proving Plant’); German Agency for Technical Collaboration (GTZ), CSIR & HZL.

    16. ‘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.

    17. ‘Advice on processing of secondary cobalt containing materials‘; M/s Rubamin Ltd, Baroda.

    18. ‘Literature survey on electrolytic nickel hydroxide‘; M/s Techno Chemicals, Mumbai.

    19. ‘Preparation of engineering package for a 1200 tpa nickel electrowinning plant‘; M/s NICOMET Ind. Ltd., Mumbai.

    20. ‘Pressure leaching of Ni-Co sulphides of M/s Nicomet Industries Ltd. ‘; M/s NICOMET Ind. Ltd., Mumbai.

    21. ‘Development of a process for recovery of metal values from dust and sludges of Durgapur Steel Plant‘; RDCIS, Ranchi.

    22. ‘Preparation of Nickel Hydroxide suitable to Nickel Cadmium and Nickel metal hydride batteries‘; MNES, New Delhi.

    23. ‘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.

    24. ‘Basic study on precipitation of Boehmite‘; National Aluminium Company Ltd. (NALCO), Bhubaneswar.

    25. ‘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).

    26. ‘Prevention of coal dust at mechanical coal handling plant‘; Paradip Port Trust, Odisha.

    27. ‘Recovery of copper and tellurium from secondary raw materials‘; M/s  Grishma Special Chemicals, Mumbai.

    28. ‘Development and design of diaphragm-less cells for electrolytic acid killing‘; IGCAR (DAE), Kalpakkam.

    29. ‘Recovery of copper from copper bearing slag tailings‘; Aditya Birla Copper, Mumbai.

    30. ‘Chromite recovery from COB plant tailings and sub grade chromite ore‘; Jindal Stainless Steel, Bhubaneswar.

    31. ‘Consultancy assistance for setting up of the 500TPD commercial chromite beneficiation plant and to assist its flotation plant performance evaluation‘; Jindal Stainless Steel, Bhubaneswar.

    32. ‘Laboratory scale study on alumina trihydrate productivity using catalyst‘; National Aluminium Company Ltd. (NALCO), Bhubaneswar.

    33. ‘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.

    34. ‘Microbial desulphurization of calcined petroleum coke (Phase I & II) ‘; ALCOA, USA.

    35. ‘Laboratory testing of copper oxide ore, Oman; Engineers India Ltd. ‘, New Delhi.

    36. ‘Production of manganese sulphate from low grade manganese ore of Gujarat by non-conventional leaching techniques‘; Gujarat Mineral Development Corporation, Gujarat.

    37. ‘Globally competitive chemical processes and products‘; CSIR taskforce project.

    38. ‘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.

    39. ‘Recovery of nickel from chromite over burden of Orissa Mining Corporation‘; Orissa Mining Corporation, Bhubaneswar.

    40. ‘Detailed Design, Inspection, Testing and Commissioning of Electrolytic Reduction Cell Assembly for TDP at RCF, Trombay‘; Heavy Water Board (DAE), Mumbai.

    41. ‘Nickel recovery from refinery electrolyte (Phase-I&II) ‘; Hindalco Industries (Birla copper unit), Dahej.

    42. ‘Recovery of tellurium powder from anode slimes‘; Hindalco Industries (Birla copper unit), Dahej.

    43. ‘Recovery of lead from anode slimes‘; Hindalco Industries (Birla copper unit), Dahej.

    44. ‘Basic engineering process package for recovery of tellurium powder and removal of lead from anode slimes‘; Hindalco Industries (Birla copper unit), Dahej.

    45. ‘Metallurgical test work on recovery of Cu from leach residue‘; M/s. Chandra Proteco Ltd., Silvassa, India.

    46. ‘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.

    47. ‘Recovery of copper from copper bearing slag tailings‘; Aditya Birla copper, Mumbai.

    48. ‘Preparation and characterization of EMD suitable for batteries from slurry containing Mn and Co‘; KIGAM, South Korea.

    49. Recycling of Lithium ion batteries; Renault Nissan Technology, Chennai.

    50. ‘An investigation on recovery of alumina in NALCO fly ash through pyro-hydrometallurgical / bioprocessing methods‘; National Aluminium Company Ltd. (NALCO), Bhubaneswar.

    51. ‘Electrochemical process for improving productivity of alumina in Bayer liquor‘; National Aluminium Company Ltd. (NALCO), Bhubaneswar.

    52. ‘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.

    53. ‘Processing of secondary resources for the production of battery materials‘; CSIR-FTT Project.

    54. ‘Manganese nodules slurry characteristics and pumping studies for vertical transport‘; NIOT, Chennai.

    55. ‘Multi-helical microfluidic system for integrated extraction- separation of metal ions‘; Department of Science and Technology (DST), Govt. of India.

    56. ‘Feasibility of bauxite leaching under high temperature conditions‘; HINDALCO Industries Limited, Belagavi.


    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

    Recovery of Pd from spent nuclear fuel effluent (High level liquid waste) using ionic liquids; 2015; Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam

    Recovery of high pure Te, Cu and Pb from anode slime; 2012; M/s Hindalco Industries Ltd., Dahej, Gujarat.

    Electrochemical reduction cell assembly design; 2008; M/s Heavy Water Board, Mumbai

    Chromite recovery from COB plant tailings and sub-grade chromite ore; 2008; M/s Jindal Stainless Steel Limited, Bhubaneswar

    Recovery of cobalt carbonate from cobalt bearing slag of South Africa; 1998; M/s Shalina Trading Corporation Ltd., Mumbai

    Recovery of cobalt from superalloy scrap/sludge; 1997; M/s Rubamin Ltd., Baroda

    Production of Copper cathode from secondary sources; 1997; M/s Hydromet India Ltd, Kancheepuram