The purpose of this work was to find optimal technological solutions to improve the quality of iron ore concentrates in beneficiation of magnetite-hematite ores of the Mikhailovskoye deposit using a comprehensive approach to the study of material, chemical, and phase composition.
INTRODUCTION India's iron ore reserve is around 25,249 million tonnes (MT) apart from Banded HematiteQuartzite (BHQ) and Banded Hematite Jasper (BHJ) and occupies sixth position in the world iron ore …
For example, the structure of silicates present in certain types of low grade iron ores—banded hematite quartzite (BHQ) and banded hematite jasper (BHJ), plays an important role in attaining mineral liberation which subsequently influences the recovery of hematite by flotation.
The authors would like to acknowledge the authorities of the Joda mines to supply the banded hematite jasper ore and also extended their acknowledgment to CSIR-NML, Jamshedpur, for their help throughout the characterization studies.
Massive-hard, flaky-friable, blue dust and lateritic varieties of iron ores are the major ore types, associated with banded hematite, jasper and shales. These ores could have formed as a result of supergene enrichment through gradual but extensive removal of silica, alumina and phosphorus from banded iron formations and ferruginous …
Both of the bands (Banded Quartzite-Magnetite and banded Hematite-Quartzite) and Jasper present in the core samples of the studied area (eastern continuation of Orissa carton) ( fig. 8). 1 a and 2).
This study investigates the microwave carbothermal reduction of low grade banded hematite jasper iron ore ∼37% Fe. Due to complex association of the iron phase and impurities, the conventional beneficiation was found futile. The susceptibility of iron phases to microwave exposure assists in the liberation of iron values from impurities.
A novel approach for the complete utilization of a low-grade banded hematite jasper ore assaying ~ 47% Fe has been taken in order to address the issue of rapid consumption of high-grade iron ores ...
This study evaluates the carbothermal microwave reduction of low-grade banded hematite jasper iron ore for the preparation of potential feedstock for the alternative iron-making process.
The absence of alumina impurities in the banded hematite jasper (BHJ) ore provides it an edge over other low-grade iron ores. The conventional beneficiation techniques such as magnetic separation and washing were found to be ineffective to produce suitable feed (Fe ~ 60%) for the blast furnace.
The Banded Hematite Jasper Formation within the Iron Ore Supergroup of the Singhbhum Craton in eastern India comprises fine alternating layers of jasper and specularite. It was deposited at ∼3000 Ma and deformed by a mobile episode at ∼2700 Ma. Hematite pigment (<1 μm) mixed with cryptocrystalline silica and specularite (> 10 μm) is …
The demand for high-grade iron ore has increased the importance of beneficiation of low-grade iron ores. The captive mines of Tata Steel Limited, India has reserves of Banded Haematite Jasper (BHJ) ore assayed 40% Fe, 40% SiO2 and <1% Al2O3. QEMSCAN study has revealed haematite and quartz as a major iron bearing and …
Banded hematite jasper (BHJ) containing 45.2% Fe, 32.64% SiO2, 0.63 % Al2O3 and 1.25 % LOI is found difficult to beneficiate either by magnetic or flotation techniques due to fine intergrowth of ...
Quick depletion rate of high-grade iron ore paved to emphasise on banded hematite jasper and banded hematite quartzite with ~30-40% iron. In the present investigation, efforts have been made to…
Besides, the use of new collectors in iron ore flotation is also highlighted. Skip ... focuses on the use of microwave energy in the reduction roasting followed by magnetic separation studies of an Indian Banded Hematite Jasper (BHJ) ore assaying about 48% Fe. ... To identify and establish beneficiation techniques for banded hematite …
India's steel vision of 2030 requires a huge amount of quality iron ore. The utilization of low-grade iron ores such as banded iron ores will play an important role to achieve the same production. The absence of alumina impurities in the banded hematite jasper (BHJ) ore provides it an edge over other low-grade iron ores. The conventional …
The recovery of fine hematite particles from banded hematite quartzite (BHQ) ore with potato starch has been investigated using selective flocculation. Microscopic features, coupled with x-ray ...
The influence of thickness of bands on the liberation and flotation response of banded hematite quartzite (BHQ) ore is investigated.
This study investigates the microwave carbothermal reduction of low-grade banded hematite jasper iron ore (Fe ~ 37%). The susceptibility of iron phases to microwave exposure and their selective ...
A flotation process has been developed to treat one such ore, namely banded hematite quartzite (BHQ) containing 41.8wt% Fe and 41.5wt% SiO2, by using oleic acid, methyl isobutyl carbinol (MIBC ...
The reserve of good quality ores is dwindling sharply, and the major iron ore resources that would be available in future are limited to lean ores, such as banded hematite quartzite (BHQ), banded hematite jasper (BHJ), and banded magnetite quartzite (BMQ). These ores contain averagely 30wt%-40wt% Fe. The formation of these ores are the result of …
In order to beneficiate banded hematite jasper (BHJ), an integral characterization approach needs to be developed, which depends mainly on nature of the ore and its relationship with the gangue ...
The technology for beneficiation of banded iron ores containing low iron value is a challenging task due to increasing demand of quality iron ore in India. A flotation process has been developed to treat one such ore, namely banded hematite quartzite (BHQ) containing 41.8wt% Fe and 41.5wt% SiO2, by using oleic acid, methyl isobutyl …
The demand for high-grade iron ore has increased the importance of beneficiation of low-grade iron ores. The captive mines of Tata Steel Limited, India has reserves of Banded Haematite Jasper (BHJ) ore assayed 40% Fe, 40% SiO2 and <1% Al2O3. QEMSCAN study has revealed haematite and quartz as a major iron bearing and gangue mineral …
The recovery of fine hematite particles from banded hematite quartzite (BHQ) ore with potato starch has been investigated using selective flocculation.
Quick depletion rate of high-grade iron ore paved to emphasise on banded hematite jasper and banded hematite quartzite with ~30-40% iron. In the present investigation, efforts have been made to characterize the banded hematite jasper of Ghatkuri area (Gua), west Singhbhum, Jharkhand, India. The banded hematite jasper …
A novel approach for the complete utilization of a low-grade banded hematite jasper ore assaying ~ 47% Fe has been taken in order to address the issue of rapid consumption of high-grade iron ores and…
Abstract:The separation of iron oxide from banded hematite jasper (BHJ) assaying 47.8% Fe, 25.6% SiO2and 2.30%Al2O3using selective magnetic coating was studied. Characterization studies of the low grade ore indicate that besides hematite and goethite, jasper, a microcrystalline form of quartzite, is the major impurity associated with this ore. …
To overcome the demand, low-grade iron ore resources like Banded Hematite Quartzite (BHQ) and Banded Hematite Jasper (BHJ) need to be utilized for a sustainable future.
To identify and establish beneficiation techniques for banded hematite quartzite (BHQ) iron ore, a comprehensive research on BHQ ore treatment was carried out. The BHQ ore was assayed as 38.9wt% Fe, 42.5wt% SiO2, and 1.0wt% Al2O3. In this ore, hematite and quartz are present as the major mineral phases where goethite, martite, …
High alumina & silica content of Indian Iron ore resources require suitable beneficiation techniques to produce quality raw material for steel manufacturing. Banded Hematite Jasper (BHJ) reserves are abundantly available in India but not considered as an ore of Iron for production purposes due to its high Silica content and complex …
Although flotation technique is a well established industrial practice for the separation of mineral values, limited investigations have been made on low grade Indian banded iron ores. Das et al. [9] carried out magnetic and flotation studies of Indian banded hematite quartzite (BHQ) ore for the production of pellet grade concentrate.
PDF | Demonstrate how banded hematite jasper is useful for future generation and utilized as a substitute for hematite or magnetite ore | Find, read and cite all the research you need on ResearchGate
Massive-hard, flaky-friable, blue dust and lateritic varieties of iron ores are the major ore types, associated with banded hematite, jasper and shales. These ores could have formed as a result of …
This study investigates the microwave carbothermal reduction of low-grade banded hematite jasper iron ore (Fe ~ 37%). The susceptibility of iron phases to microwave exposure and their selective absorptions help in the liberation of iron values from impurities. It was found that a small fraction of the microwave-irradiated ore-charcoal …
