Kenyan Iron Ore: Mining and prospects of Processing
Kenya relies heavily on the importation of manufactured goods with iron and steel products forming the bulk of the raw materials. The country has some iron ore deposits and coal reserves among other input for steel making. The main deposits of the ore are found in Kishushe, Marimanti and Samia. The paper focuses on the iron ore from Kishushe ...
Adverse effects on environment by the Iron Ore Industries
Singhbhum-Orissa iron ore belt in the eastern India has abundant reserves of iron ore in the form of horse shoe belt. The soft laminated ore, goethitic-lateritic ores, friable ore and blue dust abundantly occur-in this region and are very soft and friable in nature: Large amount of fines and slimes arc generated during mining, washing, crushing ...
Characterization and Beneficiation of Dry Iron Ore
Dixit, P and Makhija, D and Mukherjee, A K and Singh, V and Bhatanagar, A and Rath, R K (2019) Characterization and Beneficiation of Dry Iron Ore Processing Plant Reject Fines to Produce Sinter/Pellet Grade Iron Ore Concentrate. Mining Metallurgy & Exploration, 36(2) . pp. 451-462. Full text not available from this repository.
Innovative Development on Agglomeration of Iron Ore Fines
In steel industry and in mines, a significant amount of ultra-fines waste iron oxides and iron ore fines is generated. Utilizations of these fines are required to reduce the environmental hazards and conserve the natural resources. Some of these fines are normally used in sintering practice. However, sintering has a limitation of accepting ultra-fines materials.
Air Pollution Assessment Inside and Around Iron Ore …
The mathematical description of natural ventilation processes in quarries requires the updating of huge data bases. In order to describe air circulation in a quarry, the known mathematical model was adopted, which takes into account the process of thermal convection from natural as well as from artificial heat sources.
Beneficiation of a finely disseminated low-grade iron ore
The gradual depletion of high-grade iron ores due to extensive utilization has necessitated the exploitation of low/off grade iron ore reserves of India. Beneficiation of low grade iron ore is required to make it suitable for industrial usage. The low grade iron ore mined from Gua mines contains 57.6% Fe. At coarser size, liberation of gangue from iron ore is not …
Impact of iron ore mines generated pollutants on
Impact of iron ore mines generated pollutants on peripheral environment and its effective management—a case study of Koira region, Odisha - eprints@NML. Mining …
Iron and aluminum ore mining pollution induce …
Iron and aluminum ore mining pollution induce oxidative and tissue damage on fruit-eating bats from the Atlantic Forest - ScienceDirect. Journal of Hazardous …
A short review on environmental impacts and application of iron ore
One of the wastes generated during the iron ore extraction process is Iron Ore Tailings (IOT), which is characterized by the presence of constituents which tend to degrade the quality of the soil and water when it comes in contact. ... The main source of air pollution at the mining sites is due to the dust generated by extremely small sized ...
Mineralogy of iron ore pellet and its correlation with …
The mineralogical investigation of typical indurated pellets, which were generated through the pelletisation experiments of the concentrate from dump fines of Gua Iron Ore mines of SAIL, has been reported in the present paper. Pelletisation experiments were conducted with the iron ore concentrates (Fe = 65.1%) of varying mesh of grind …
Implication of process mineralogy for beneficiation of low grade iron
Total estimated reserve of iron ore in India is around 23 billion tonnes with annual consumption of about 100 million tonnes, while the anticipated demand by next two years is likely to increase by 150 million tonnes/annum. It is estimated that proven metallurgical grade ore is going to sustain the production of iron for another 30–35 years only.
A short review on environmental impacts and …
Air pollution. The main source of air pollution at the mining sites is due to the dust generated by extremely small sized particle of IOT, which mixes with the air …
Utilisation of india's iron ore resources— present situation …
India is endowed with large reserves of iron ore. The target being set for augmenting domestic steel capacity in the near future would substantially enhance the demand of iron ore. Considering the short term target of about 120 million tons production, the corresponding demand for iron ore inputs, with Fe content in the region of 62–64%, …
Recovery of MnO2, values from fine dumps of Dongri Buzurg Mine …
In the Dongri Buzurg Manganese Ore mine of M/s. MOIL, the production of high grade lumpy ores for the iron and steel industry, has resulted in accumulation of about 35,000 tonnes low grade fines over the years. These fines are stacked in the form of unconsolidated dumps. These fines contain significant Mn values, besides creating …
A short review on environmental impacts and …
Increases in the demand for iron lead to the mining of iron ores with lower iron contents, which increases the generation of tailings. Consequently, disposal of IOTs …
Reduction of Highly Siliceous Iron Ore
Abstract. We look at the life indices of iron ore, the very long term forecast of iron and steel production and the conseq-uent demand for iron ore made on optimistic assumptions also show that the steel industry can remain comfortable with domestic iron ore supplies, however the life of high grade lumpy iron ore is not more than 10 years from now on.
A Review on Remediation of Iron Ore Mine Tailings …
Abstract. Mining operations degrade natural ecosystems by generating a large quantity of mine tailings. Mine tailings remain in dams/open ponds without further treatment after valuable metals such as …
Fundamentals of Iron Ore Sintering
The process of sinter making originated from a need to make use of fines generated in mines and in ore bene-fiCiation plants. With the development of sintering technology, a sintering plant has become a tremendous success for providing a phenomenal increase in prod-uctivity and saving in coke rate to the blast furnace. The …
Welcome to Eprints@NML
Eprints@NML. It is the official Open Access repository of CSIR-National Metallurgical Laboratory. Locally produced research outputs - Journal papers, conference papers, reports, theses, patents etc. - are uploaded here by NML authors. Interested users can freely download and use documents as most of them are directly accessible and full-text ...
Effect of Pollutants generated by Mines in areas on …
Abstract. Mining can pollute air and drinking water, harm wildlife and habitat, and permanently scare natural landscapes. Modern mines as well as abandoned mines are …
7 Environmental Impacts of Iron Ore Mining
Steel production uses over 98% of the iron ore available on the global market. Iron ore is a significant material that is used to extract metallic iron. Due to the increasing demand for metals, mining, and processing must be done continuously, producing a lot of liquid and solid waste. Massive amounts of tailings containing dangerous elements, including Fe, …
Commercial utilization of waste/low-grade iron ore fines in SAIL mines
The use of high-quality iron ore, leaving out low-quality overburden, has resulted in huge accumulation of dumped rejects over the years. Due to limited beneficiation facilities available at SAIL mines the accumulated stockpiles of so-called waste dumps are consuming lot of space, putting pressure on environment and creating pollution hazard.
Utilisation of Iron ore Fines in Alternative Iron making
Extraction of metallic iron from iron bearing ores is the basis of iron and steel industry. Extensive mechanized mining and advanced beneficiation techniques to meet the oxide feed requirements of Blast Furnace, Direct Reduction and Smelting Reduction processes are resulting in gene-ration of macro and micro fines/slimes (washed fines) in various …
Sintering characteristics of manganese ore fines from
Gupta, P C and Kothari, S V and Subramanian, N A and Sane, R Y (1983) Sintering characteristics of manganese ore fines from Balaghat and Ukwa mines of Manganese Ore (India) Limited. In: Proceedings of the Seminar on Problems and Prospects of Ferro-Alloy Industry in India, Oct. 24-26, 1983, NML, Jamshedpur.
Recovery of Iron Values from Waste Iron Ore Slime
Iron ore slime (-150 μm) was obtained after scrubbing and wet screening of a low grade iron ore assayed 42.7% Fe with 12.5% Al2O3 and 13.68% SiO2. Size analysis revealed that 90% of the iron ore slime was having size less than 72 μm. The isoelectric point of the iron ore slime was found to be at pH 4.21.The optimum condition was applied for ...
Beneficiation of iron ore fines to improve blast furnace
The popular technologies available for beneficiation are washing of iron ore and jigging of ore. Iron ore from our captive mines contains high alumina content of around of 2.3% and has been major obstacles in lowering slag rate. Alumina in iron ore fines affects the process of sintering and quality of sinter.
Beneficiation and Sinter Amenability Study of Iron Ore Slime …
The iron ore processing plant at Bolani mines of Steel Authority of India Ltd., India generates about 20-25% of ROM as slimes during wet operation. These slimes are very fine in nature (- 0.5mm) and its average iron content ranges between 52-55%. This material is presently being discarded as process waste due to its inferior grade.
Characterization and its implication on beneficiation of low grade iron
Studies were undertaken on low grade iron ore sample from Noamundi iron ore mines. The objective of this study was to examine the possibility of the physical beneficiation of low grade iron ore sample by physical methods for the blast furnace route of iron production. The present investigation relies on petrography and ore mineralogical characterization, …
Characterisation and surface chemical studies on ultrafine iron ore …
During the wet processing of iron ores, a substantial amount of slimes are generated. The slime contains very fine iron bearing mineral particles which are difficult to remove and cause environmental pollution when discharged. In this paper, an attempt was made to study the settling and dispersion behaviour of the very fine iron ore mineral particles …
Kinetics and Mechanism of Reduction of Iron Ore-Coal …
Enormous amount of fines are generated in Indian iron ore and coal mines due to mechanized mining and mineral dressing operations. Utilization of these fines for extracting metal is of vital concern for judicious resource utilization and pollution control. The term composite pellet is being employed here to mean a pellet containing mixture of fines of …
