Daily Current Affairs – 2020Topic: For Prelims and Mains
Geological Survey of India (GSI) has found reserves of Vanadium in Arunachal Pradesh in its recent exploration. Geological Survey of India (GSI) is an office headed by Ministry of mines.
▪ Vanadium is used primarily as an alloying element in the Iron & Steel Industry and to some extent as a stabiliser in titanium and aluminium alloys used in the aerospace Industry.
▪ Modern applications of vanadium include its use as vanadium secondary batteries for power plants and rechargeable Vanadium Redox Battery (VRB) for commercial applications.
▪ Vanadium alloys are used in nuclear reactors because of vanadium’s low neutron-absorbing properties.
▪ It is a scarce element, hard, silvery grey, ductile and malleable transition metal with good structural strength.
Concentrations of vanadium are found in the palaeo-proterozoic carbonaceous phyllite rocks in the Depo and Tamang areas of Papum Pare district in Arunachal Pradesh.
Phyllite is a fine-grained metamorphic rock formed by the recrystallization of fine-grained, parent sedimentary rocks, such as mudstones or shales.
▪ Sedimentary rocks containing significant enrichment in organic matter over average sediments are called carbonaceous sedimentary rocks.
▪ There are other potential sites in various districts in Arunachal Pradesh.
▪ This is the first report of a primary deposit of vanadium in India.
▪ China is the largest producer and consumer of Vanadium metal.
▪ India is a significant consumer of vanadium but is not a primary producer of the strategic metal. It is recovered as a by-product from the slag collected from the processing of vanadiferous magnetite ores (iron ore), GSI officials said.
▪ According to data provided by GSI, India consumed 4% of about 84,000 metric tonnes of vanadium produced across the globe in 2017. China, which produces 57% of the world’s vanadium, consumed 44% of the metal.