Chemically treated iron ore slime is suitable for iron production using blast furnace whereas the elemental iron produced by electrowinning can be used directly for …
ABSTRACT A typical high-alumina containing iron ore slime from the eastern Indian sector containing 58.13% Fe, 6.48% SiO2, 4.9% Al2O3, and 5.35% LOI, have been evaluated to find out whether grinding of the slimes will be beneficial or not for upgrading the slime to generate pellet-grade concentrate with >64% Fe. Liberation …
Abstract Beneficiation of low grade iron ore slime from Chitradurga, India was studied with a view to produce pellet grade fines. The slime sample had a feed grade of 49.86% total Fe, 7.93% Al2O3, … Expand
This beneficiation technology is not suitable to Indian iron ore slime due to its typical mineralogical composition. Compositionally, Indian iron ore slime contains goethite as major iron bearing mineral and kaolinite as major gangue bearing mineral. Earlier efforts were made to recover iron values from iron ore slime [5], [6], [7], [8].
A typical high-alumina containing iron ore slime from the eastern Indian sector containing 58.13% Fe, 6.48% SiO2, 4.9 % Al2O3 and 5.35% LOI, have been evaluated to find out whether grinding of the ...
ABSTRACT. A typical high-alumina containing iron ore slime from the eastern Indian sector containing 58.13% Fe, 6.48% SiO 2, 4.9% Al 2 O 3, and 5.35% …
The iron ore slimes (d80 ∼ 50 µm) generated at Noamundi iron ore washing plant (TISCO), assaying 57% Fe, 4% SiO2 and 8.3% Al2O3, have been subjected to …
iron ore slime. 2. Experimental Iron ore slime collected for this study was screened by wet sieving technique into three broad size classes such as coarser than 50 μm, between 50 to 25 μm and finer than 25μm. This classification is based on the prevailing under-standing that existing beneficiation methods are suitable for
One possible way is the recovery of iron concentrate from these slimes by using suitable beneficiation techniques, which can be used to produce iron pellets for …
ABSTRACT. A typical high-alumina containing iron ore slime from the eastern Indian sector containing 58.13% Fe, 6.48% SiO 2, 4.9% Al 2 O 3, and 5.35% LOI, have been evaluated to find out whether grinding of the slimes will be beneficial or not for upgrading the slime to generate pellet-grade concentrate with >64% Fe.Liberation …
Bolani iron ore slime containing 53% Fe, 9.56% Al 2 O 3 and 6.14% SiO 2 was subjected to bio-beneficiation studies. In situ leaching by A. niger removed about 38% of alumina in 15 days, while B. circulans could removed 39% of alumina after six days at 10% pulp density.
Therefore, this work is aimed to experimentally study the iron ore slime beneficiation using a novel 100 mm hydrocyclone (with small cone angle, tapered vortex finder and optimum cylindrical length) design developed by computation fluid dynamics (CFD) simulation studies. As the design is developed using numerical studies, the initial ...
Therefore, this work is aimed to experimentally study the iron ore slime beneficiation using a novel 100 mm hydrocyclone (with small cone angle, tapered vortex finder and optimum cylindrical ...
The beneficiation techniques such as scrubbing, classification, gravity separation, magnetic separation and flotation are generally utilized to enhance the …
beneficiation studies of Iron ore slime from Karnataka, India through dispersion and selective flocculation in presence of surfactants and polymers with a view to produce pellet grade fines. The ...
Beneficiation studies of iron-ore fines and slime have been made to ascertain the selectivity of chemical additives with or without stabilizing agents and/or calcium ion for alumina removal.
The iron ore slimes (d80 ∼ 50 µm) generated at Noamundi iron ore washing plant (TISCO), assaying 57% Fe, 4% SiO2 and 8.3% Al2O3, have been subjected to hydrocyclone studies. The effects of different design and operating parameters have been studied to get a product suitable for subsequent use in the sinter mix. The studies …
A novel hydrocyclone design fabricated and tested for iron ore slimes beneficiation. Optimised performance found with 10° cone of novel cyclone for silica slurry. Air-core elimination by rod insertion results an adverse effect on its separation.
[3] S M ahiuddin, S Bandopadhyay and J N Baruah, „„A study on the beneficiation of Indian iron ore fines and slime using chemical additives", International Journal of M ineral Processing, vol. 11, pp. 285-302, 1989.
Washing of iron ore fines and slime (10% and 25% w/v, slurry concentrations) with two types of surface-active agents (sodium humate (synthesized) and AD 200 (commercial)) at varying concentrations at pH …
Chemically treated iron ore slime is suitable for iron production using blast furnace whereas the elemental iron produced by electrowinning can be used directly for …
Iron ore tailing/slime (-150 μm) is produced after scrubbing and wet screening of a low-grade iron ore. Tailing beneficiation of iron ore has been addressed either by flotation or wet high intensity high gradient separation. The present study aims to recover iron values from discarded slime containing assay ~56% Fe, ~6.5% SiO 2, and ~7.0% Al 2 O 3
The specific gravity of iron ore slime is very high (∼2.81) due to iron content, whereas it is ∼2 for bottom ash and ∼2.5–2.6 for sands. The Bottom Ash is uniformly …
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% Al 2 O 3 and 13.68% SiO 2. 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
The ever-increasing demand for steel and the subsequent depletion of high-grade ores requires the massive utilization of low-grade iron ores. In the present study, an iron ore slime sample containing 56.1% Fe was investigated using physical beneficiation, carbothermal reduction, and a microwave-assisted process; however, physical …
Therefore, this work is aimed to experimentally study the iron ore slime beneficiation using a novel 100 mm hydrocyclone (with small cone angle, tapered vortex finder and optimum cylindrical ...
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 ...
Beneficiation is the process of separating iron ore from the gangue particles like alumina, silica. Increasing the iron ore demand, with the faster depletion of high grade iron ore, it is the time to use low grade iron ore slime as a feed stock rather leaves as a waste. Mainly coarser fraction is rich in iron content and finer fraction …
Synopsis. Researchers at IIT Madras and Kanpur devise a novel method to repurpose discarded iron ore waste, termed "slime," into reusable material via a microwave-based beneficiation process.
As per the guidelines of IBM the iron content in the tailing should be below 45%. In view of the above, CSIR-NML had undertaken study on characterization and beneficiation study of iron ore slime from eastern part of India and developed process technology for recovering of iron values from slimes.
The beneficiation studies of Suresh et al. (1981), concludes that low grade chromite ore of 16–25% Cr 2 O 3, of Sitampundi area of India, cannot be upgraded by using tabling and flotation techniques, to meet the metallurgical grade due to the intimate association of iron in the lattice of chromite.
The proportion of iron ore slime to ROM will increase in the future, with a higher proportion of lean-grade ores in ROM. Furthermore, tonnages of iron ore slime will increase with increasing demand of iron concentrate. Presently, this slime is stored in a dam in the absence of beneficiation technology. A beneficiation flowsheet was …
The friable nature of Indian iron ore causes lots of fine generation during mining and subsequent stages. In conventional processing of 1 ton of Iron ore, 10–15% …
In India, the tailings of iron ore beneficiation are dumped in slime ponds, which is a major environmental concern. In the present study, a new beneficiation circuit was designed to recover the valuable minerals from the tailing effectively. The present study involves the characterization of three different samples using chemical, particle size, …
Studies were carried out on the removal of alumina from iron ore slime containing (%) Fe 2 O 3 75.7, Al 2 O 3 9.95, SiO 2 6.1, Fe (total) 52.94 with the help of Bacillus circulans and Aspergillus niger. B. circulans and A. niger showed 39% and 38% alumina removal after six and 15 days of in situ leaching at 10% pulp density, …