My research focuses on the development of efficient and sustainable processes for metal recovery from ores, metallurgical wastes, tailings, and residues. I aim to address the challenges associated with these primary and secondary sources and explore innovative techniques for extracting valuable metals. Additionally, I am actively involved in metal recycling, aiming to promote circular economy and minimize the environmental impact of metal production. I also investigate the application of process intensification technologies, such as microwave, ultrasound, and mechanical activation, in metal extraction processes. Through my research, I aim to contribute to the advancement of sustainable and environmentally friendly metal extraction processes.

All Publications

Iron extracted from hazardous waste of aluminium production by Borra C. R. Nature 625 665-667 (2024)
Characterization and Feasibility Studies on Complete Recovery of Rare Earths from Glass Polishing Waste by Borra C. R., Vlught T. J., Spooren J. , Nielsen P. , Yang Y. , Offerman S. E. Metals 9 - (2019)
Alumina recovery from bauxite residue: A concise review by Kar M. K., Onal M. , Borra C. R. Resources, Conservation and Recycling 198 107158- (2023)
Recovery of rare earths from glass polishing waste for the production of aluminium-rare earth alloys by Borra C. R., Vlugt T. J., Yang Y. , Spooren J. , Nielsen P. , Amirthalingam M. , Offerman S. E. Resources Conservation and Recycling 174 10576-10576 (2022)
Hydrometallurgical Recycling of NdFeB Magnets: Complete Leaching, Iron Removal and Electrolysis by Onal M. A., Borra C. R., Guo M. , Blanpain B. , Van Gerven T. Journal of Rare Earths 35 574-584 (2017)
Recovery of Rare Earths and Major Metals from Bauxite Residue (Red Mud) by Alkali Roasting, Smelting, and Leaching by Borra C. R., Blanpain B. , Pontikes Y. , Binnemans K. , Van Gerven T. Journal of Sustainable Metallurgy 3 393-404 (2017)
Hydrometallurgical Production of Electrolytic Manganese Dioxide (EMD) from Furnace Fines by Önal M. A., Panda L. , Kopparthi P. , Singh V. , Venkatesan P. , Borra C. R. Minerals 11 712-712 (2022)
The Effect of Mechanochemical Activation on Carbothermic Reduction of Pyrolusite Ore by Borra C. R., Saida S. , Kar M. K., Venkatesan P. , Singh V. , Onal M. A. Mining, Metallurgy & Exploration 40 121-129 (2023)
Kinetics of solid-state reduction of chromite overburden by Shaik S., Chen . , Sahoo . P., Borra C. R. International Journal of Minerals, Metallurgy and Materials 30 2347-2355 (2023)
Recovery of Cerium from Glass Polishing Waste: A Critical Review by Borra C. R., Vlught T. J., Yang Y. , Offerman S. E. Metals 8 - (2018)

Completed Projects

Principal Investigator

Process for selective recovery of rare earth elements REEs from spent neodymium iron boron NdFeB magnets Department of Science and Technology (DST)
Production of rare earth permanent magnets from spent magnets and primary rare earth oxides Scheme for Promotion of Academic and Research Collaboration (SPARC), Apex Committee of SPARC, Ministry of Education
Rare earth technology transfer REMAG
Thermal Processing of Hyperaccumulator Plant Biomass Genomines

Co-Principal Investigator

Converting Electric Arc Furnace Dust (EAFD) to value added iron nugget with minimum possible carbon and energy input Science and Engineering Research Board (SERB)
Converting Electric Arc Furnace Dust (EAFD) to value added iron nugget with minimum possible carbon and energy input Anusandhan National Research Foundation (ANRF)
Developing a novel rare-earth modified AlSi10Mg alloy via laser additive manufacturing for high-temperature automobile and aerospace applications Various internal users of the Institute

Alumni members