Process effluents and mine tailings: sources, effects and
Dhakate et al. studied the impact assessment of chromite mining on groundwater through simulation modeling in In this process, the low-grade chromite ore (containing 34.8% Cr 2 O 3) was reduced by carbon at 1200 °C to remove the iron-oxide phases by converting into Fe Efficient utilization of nickel rich Chromite Ore Processing Tailings
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Thermal Transformation of Oxide and Hydroxide Minerals
The present study demonstrates the thermal transformation behavior of chromite and manganese ores with varying compositions. Simultaneous thermal Chromite mining activities are indispensable for production of goods and services. Sukinda is a major mining site of Odisha, India, polluted by chromium, w Chromite mining pollution, environmental impact, toxicity
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Chromite ore addition to serpentinized magnesite mining wastes
This research aims to the re-utilization of specific mining wastes, containing mainly geologically degraded serpentinized minerals, produced during the Chromite is an oxide mineral belonging to the spinel group, a complex mineral containing magnesium, iron, aluminum, and Cr in varying proportions, depending on the deposit, Chromite an overview ScienceDirect Topics
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Chromite Ores, Mining, Processing Britannica
Chromite, relatively hard, metallic, black oxide mineral of chromium and iron (FeCr2O4) that is the chief commercial source of chromium. It is the principal member of the spinel series of chromium oxides; the other Samancor’s total chromite resources exceed 1,8 billion tons and are expected to support current mining activity for well over 200 years at current rates of extraction. While some ore is exported, more than 80% is converted into three grades of ferrochrome (charge chrome, intermediate-carbon ferrochrome, and low-carbon ferrochrome).South Africa Mining: Chromite Mining Overview Mbendi
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Iron, Manganese, Chromium, Titanium and Vanadium Deposits
Based on geological studies of more than 100 deposits of iron occurrences found in Mongolia, Ministry of Geology and Mining, Mongolian People’s Republic, and Ministry of Geology Geological Survey of USSR works have compiled map of the distribution of Fe-Mn mineralization in Mongolia (Marinov et al. 1977).In this research, they have The global mining economy commenced 2022 on an upswing and continued with strong contributions to the global economy despite the lasting effects of chromite, bauxite, mica and manganese.Mining: Global overview Lexology
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Microbial Leaching for Recovery of Nickel and Cobalt from
Around 6–7 million tonnes of lateritic chromite overburden (COB) is generating annually in chromite mining at Sukinda valley. Nickel content in this COB is 0.5–1.0% . Kanungo SB, Jena PK (1988) Reduction leaching of manganese nodules of Indian Ocean origin in dilute hydrochloric acid. Hydrometallurgy 21(1):41.Sukinda valley has now become a “Valley of Despair”. Despite these optimistic and resilient effects, chromite mining and chromium showed various adverse sides which are affecting the lives of many, on a long-term basis and are non-ignorable [17].The problems related to chromite mining in Sukinda Valley attracted the attention Eco-toxicity of hexavalent chromium and its adverse impact on
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The development of India's ferro-alloys industry Fastmarkets
No doubt, FAMD’s ownership of large deposits of chromite and manganese ore has helped,” he added. Coinciding with Tata’s half-century of chromite mining at Sukinda, FAMD is progressively switching over from open-cast mining to underground mining in Odisha, and has started to introduce trackless mine technology Chromium. Chromium (Cr) is a hard, bluish metallic element. The only ore of chromium is the mineral chromite and 99 percent of the world’s chromite is found in southern Africa and Zimbabwe. Geologists estimate that there are about 11 billion tons of mineable chromite ore in the world, enough to supply the current demand for hundreds of years.Chromium Minerals Education Coalition
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Thermal Transformation of Oxide and Hydroxide Minerals in Chromite
Steelmaking industries consume the majority of chromium and manganese ferroalloys to impart several properties in steel and also for other purposes. The quality of ore governs the process kinetics as well as the process economy of the ferroalloy industry. The present study demonstrates the thermal transformation behavior of Groundwater contamination by heavy metals (HMs) released by weathering and mineral dissolution of granite, gneisses, ultramafic, and basaltic rock composition causes human health concerns worldwide. This paper evaluated the heavy metals (HMs) concentrations and physicochemical variables of groundwater around IJERPH Free Full-Text Groundwater Quality, Health Risk MDPI
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Mineral Exploration Scenario in India: Prospect, Promise and
India is endowed with unique geological and tectonic setting conducive to host potential mineral resources. A look at the mineral resource status of selected minerals in India indicates abundant and/or adequate resources of iron, chromite, manganese, bauxite, coal, limestone, dolomite, mica, zinc, graphite but deficient to scarce resources An online repository of publicly available oil, gas, and mining contracts. The repository features plain language summaries of each contract’s key social, environmental, human rights, fiscal, and operational terms, and tools for searching and comparing contracts.Bicol Chromite and Manganese Corp., Mineral Production
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(Bio)leaching Behavior of Chromite Tailings MDPI
Manganese oxide containing minerals acts as a transporter of electrons between dissolved oxygen and Cr(III), and therefore, Mn indirectly oxidizes Cr Hodlur, G.K. Impact assessment of chromite Manganese has been recognized with 34 deposits and occurrences, but the most part of industrial ore is concentrated in the NW part of the Cao Bang Province. Ore in this area is of sedimentary genesis of Late Devonian age, with the resource of over 12-13 million tons. Manganese ores at Chiem Hoa (Tuyen Quang Province)Mineral Resources Potential of Vietnam and Current State of Mining
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Health risk assessment associated with heavy metals through
Heavy metals exposure through dust emissions pose a health risk to workers in coal and chromite mines. The processes involved in mining are noteworthy for the generation of heavy metal-contaminated dust which causes human health implications, especially to the workers that are mainly exposed to such toxins. This study determined Sukinda Valley of Jajpur district, Odisha contributes about 98% of India's total chromite reserves with about 334 million tons annual production rate globally, which plays a colossal role to(PDF) IMPACT OF CHROMITE MINING ON ENVIRONMENT IN SUKINDA
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Nutrient status and pollution levels in five areas around a manganese
Nutrient status and pollution levels are the main factors affecting soil restoration. The nutrient status and pollution levels in five areas, an unexplored mine area (UA), an explored mine area (EA), a tailings area (TA), a reclamation area (RA) and an agricultural area (AA), around the Pingle manganese mine in Guangxi, China, were The pre-Cambrian chromites ore deposits in Sukinda valley, Jajpur District, Orissa, India, are well known for chromite ore deposits. The exploitation of the ore is carried out through open cast mining method since the last few decades. In the process, the overburden and ore dumps are stored on ground surface, where leaching of Impact assessment of chromite mining on groundwater through
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Process effluents and mine tailings: sources, effects and management
They reported that the manganese oxide present in the AMD sludge enhanced adsorption capacity of As(III) due to oxidation to As(V). (2008) Impact assessment of chromite mining on groundwater through simulation modeling study in Sukinda chromite mining area, Orissa, India. J Hazard Mater 160:535–547.Chromite is now mined at a number of sites around the Bushveld Complex, These were discovered in 1907 and early exploration and small-scale mining took place until about 1955. Manganese occurs as a variety of generally black and brown minerals, mainly oxides and hydroxides,Minerals and Mining in South Africa SpringerLink
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Oman Mining and Materials export.gov
Oman started mining and exporting chromite ores in the early 1980s. In July 1991, the government established the Oman Chromite Company, and it was later listed on the Muscat stock market. Metallurgical grade chromite ores started to be exported in the last few years primarily in response to rising demand from China and general shortages of ferro chrome
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