phosphorus removal from agbaja iron ore

Removal of phosphorus from Nigeria’s Agbaja iron ore ...

species during phosphorus removal from Nigeria's Agbaja iron ore 0.50/0.25 mm for 10 weeks. Figure 5. Curve of percent phosphorus removed versus time for Nigeria's Agbaja iron ore 0.50/0.25 mm by Micrococcus species for 10 weeks. removal was sustained during the period of cumulative cells growth which lasted till 9th week. The pH of the NB

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Phosphorus Removal Capability of Aspergillus Terreus and ...

The Nigeria’s Agbaja iron ore reserve having about 47.5%Fe [1] remains till date the largest known in the country but had long been abandoned due to its very high phosphorus content variously estimated at about 0.76–0.89Wt% [2, 6]. The mineralogy of Agbaja iron ore revealed abundant goethite with minute magnetite.

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Comparative Assessment of Phosphorus Removal from

Comparative assessment of phosphorus removal from Nigeria’s agbaja iron ore using potassium chlorate and sodium hydroxide. American Journal of Research Communication, 2013, 1(8): 43-52} usa-journals, ISSN: 2325-4076. INTRODUCTION . The need for a drastic reduction in the concentrations of phosphorus present in iron ore as a way of

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Laboratory Studies on Phosphorus Removal from

The investigation into whether or not Bacillus subtilis can remove phosphorus from the Nigerian Agbaja iron ore was carried out with careful monitoring of the population of the removing agent as well as pH of the system. 1.00mm/0.50mm, 0.50mm/0.25mm, and 0.25mm/0.125mm ore fractions obtained from sieving of the crushed iron ore in Shital Test kits, were used in sub

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(PDF) Laboratory Studies on Phosphorus Removal from ...

The investigation into whether or not Bacillus subtilis can remove phosphorus from the Nigerian Agbaja iron ore was carried out with careful monitoring of the population of

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Removal of phosphorus from Nigeria’s Agbaja iron ore ...

species during phosphorus removal from Nigeria's Agbaja iron ore 0.50/0.25 mm for 10 weeks. Figure 5. Curve of percent phosphorus removed versus time for Nigeria's Agbaja iron ore 0.50/0.25 mm by Micrococcus species for 10 weeks. removal was sustained during the period of cumulative cells growth which lasted till 9th week. The pH of the NB

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Phosphorus Removal Capability of Aspergillus Terreus and ...

The Nigeria’s Agbaja iron ore reserve having about 47.5%Fe [1] remains till date the largest known in the country but had long been abandoned due to its very high phosphorus content variously estimated at about 0.76–0.89Wt% [2, 6]. The mineralogy of Agbaja iron ore revealed abundant goethite with minute magnetite.

More

Comparative Assessment of Phosphorus Removal from

Comparative assessment of phosphorus removal from Nigeria’s agbaja iron ore using potassium chlorate and sodium hydroxide. American Journal of Research Communication, 2013, 1(8): 43-52} usa-journals, ISSN: 2325-4076. INTRODUCTION . The need for a drastic reduction in the concentrations of phosphorus present in iron ore as a way of

More

Overcoming the phosphorous issue at the Agbaja iron ore ...

The Agbaja Iron Ore project in Kogi State Nigeria is a unique sedimentary hosted channel iron goethite deposit. The sedimentary ore allows for a simple beneficiation circuit resulting in a low-cost concentrate feed for pre-reduction and smelting to produce steel billets. However, the ore contains high levels of phosphorous (1-2 %) which need to be reduced for the crude steel to

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Factorial Analysis of Phosphorus Removal during ...

phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [7] show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively. R. The aim of this work is to carry out a factorial analysis of phosphorus removed during

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Phosphorus Removal Capability of Aspergillus Terreus and ...

ABSTRACT Comparative phosphorus removal capability of a microbial fungus-Aspergillus terreus and a bacterium-Bacillus subtilis from Nigeria’s Agbaja iron ore was investigated.

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Model for Predicting the Concentration of Phosphorus ...

for removing phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [16] show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively. An attempt has been made in the past [17] to leach Itakpe iron oxide ore using oxalic acid ...

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beneficiation process iron ore dephosphorization

Jan 01, 2015 Bioleaching for phosphorus removal from iron ores. Dephosphorization of iron ore can be achieved through bioleaching. Different methods are needed to remove phosphorus from iron ore depending on whether it is present as a mineral (apatite) or associated with iron minerals (Edwards et al., 2011).

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Predictability of Phosphorus Removal Based on ...

This paper presents the predictability of phosphorus removal based on simultaneously removed sulphur and mass-input of iron ore leached in potassium hydroxide. The reaction vessel containing the solution and ore was heated at a temperature of 600°C for 10minutes. The model; P = 61.8477 x 10 -3 μ - 2.27S shows that the predicted concentration of removed phosphorus

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Solid State Desulphurization of Iron Ore and Empirical ...

Phosphorus removal using some biological processes have been evaluated based on the use of several types of fungi and bacteria, some being acid producing. Aspergillus niger and their cultural filtrates were used for removing phosphorus from Agbaja (Nigeria) iron oxide ore. The

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Technological Challenges of Phosphorus Removal in High ...

With the present rates of iron ore consumption, currently unusable, high-phosphorus iron ore deposits are likely to be the iron ores of the future as higher-grade iron ore reserves are depleted. Consequently, the design and timely development of environmentally-benign processes for the simultaneous beneficiation of high-phosphorus iron ores and phosphorus recovery,

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phosphorus removal by gravity separation in iron ore

phosphorus separation from iron ore. Phosphorus Removal of High Phosphorous Oolitic Iron Ore ... A process with acid leaching followed by hydrogen-based fluidized reduction and melt separation is presented for recovering DRI (direct reduced iron) from high-phosphorus oolitic hematite in this study, and the aim of this study is to provide theoretical and technical basis for

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Improving The Quality Of Nigeria s Agbaja Iron Ore Through ...

The result of iron ore compositional analysis is presented in Table 1. This result shows a 1.25% P 2 O 5 and 34.77% Al 2 O 3 contents in the AgbajaIJERT iron ore which corroborates the high phosphorus and high alumina status also earlier observed by[15]. Table 1. Nigeria’s Agbaja Iron Ore Composition Analysis, (%) Entries %, Content Fe T ...

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journals on dephosphorization of iron ore

Dephosphorization of agbaja iron ore Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Dephosphorization of agbaja iron ore, quarry, aggregate, and different kinds of minerals. Read More

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Phosphorus removal from Nigeria’s Agbaja iron ore by ...

Phosphorus is an unwanted component of iron ore. Its removal from Nigeria’s Agbaja iron ore by solubilization with Eurotium herbariorum isolated from the ore samples has been achieved using the submerged culture technique. Result obtained shows 61.48% removal of P in 10 weeks through the biomass growth and activities of the filamentous fungus.

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Dephosphorization of Nigerian Agbaja Iron Ore by ...

proven Nigerian iron ore deposit with phosphorus content in the range of 1.4-2.0%. In this study, dephosphorization of Agbaja iron ore using three acids and in different combinations were investigated. The design of experiment for the valuation of interactive factorial effects on phosphorus removal was also investigated.

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Improving The Quality of Nigeria’s Agbaja Iron Ore Through ...

Jul 30, 2013  Figure 3.3 Curve of Substrates pH vs Time during Phosphorus Removal from Nigeria's Agbaja Iron Ore 0.50/0.25mm by A. niger for 10 Weeks The variation of the weight percent phosphorus content, the substrates pH and the biomass weight of A. niger during phosphorus bio-sorption from the ore for 10 weeks is presented in Figure 3.4.

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Solid State Desulphurization of Iron Ore and Empirical ...

were used for removing phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [2] show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively.

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Solid State Desulphurization of Iron Ore and Empirical ...

3, Agbaja Iron Ore. INTRODUCTION . Embrittlement resulting from presence of phosphorus in produced steel materials, above the admissible quantity has caused series of structural failures in the oil industry. This awakens the need for intensive researches geared towards reducing the phosphorus content of pig iron below the admissible level.

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Model for predicting the concentration of phosphorus ...

filtrates for removing phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work (Anyakwo and Obot,2008) show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively. An attempt has been made in the past (Nwoye,2003)

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NTERNATIONAL OURNAL OF SCIENCES AND NGINEERING OL

harvested from the Agbaja iron ore was used to remove phosphorus from the iron ore. Standard central composite design of 2 full factorial design was used to develop model equations. The developed model equations were optimized using Matlab. II. MATERIALS AND METHODS The iron ore sample was obtained from Agbaja, Kogi state, Nigeria.

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Processes for phosphorus removal from iron ore - a review

Zhang and Muhammad (1989) used nitric acid to remove phosphorus from the iron ore of the Kiruna region, Sweden. A concentrate of sinter, moist, and without treatment was used. Chemical analysis showed the composition of 0.98% phosphorus (as P 2 O 5 22.25%) and 60.85% iron. Nitric acid was chosen due to the low reactivity of the acid with the ...

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REMOVAL OF PHOSPHORUS THROUGH ROASTING OF

REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC IRON ORE WITH ALKALINE EARTH ADDITIVES . K Ionkov. 1, S Gaydardzhiev. 2, D Bastin. 3, A Correa de Araujo. 4. and M Lacoste. 5. ABSTRACT . The present study is devoted to improvement of the leaching efficiency during phosphorous removal from high phosphorous gravity-magnetic

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Technological Challenges of Phosphorus Removal in High ...

With the present rates of iron ore consumption, currently unusable, high-phosphorus iron ore deposits are likely to be the iron ores of the future as higher-grade iron ore reserves are depleted. Consequently, the design and timely development of environmentally-benign processes for the simultaneous beneficiation of high-phosphorus iron ores and phosphorus recovery,

More

beneficiation process iron ore dephosphorization

Jan 01, 2015 Bioleaching for phosphorus removal from iron ores. Dephosphorization of iron ore can be achieved through bioleaching. Different methods are needed to remove phosphorus from iron ore depending on whether it is present as a mineral (apatite) or associated with iron minerals (Edwards et al., 2011).

More

BENEFICIATION, DEPHOSPHORIZATION AND DESULPHURIZATION OF ...

3. To dephosphorize and desulphurise Agbaja iron ore using hydrochloric acid. 8. 4. To remove phosphorus and sulphur from Agbaja iron ore using sulphuric acid. 5. To dephosphorize and desulphurize Agbaja iron ore by nitric acid. 6. To use five different colonies and a mixed colony of bacteria to dephosphorize and desulphurize Agbaja iron ore 7.

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phosphorus removal by gravity separation in iron ore

phosphorus separation from iron ore. Phosphorus Removal of High Phosphorous Oolitic Iron Ore ... A process with acid leaching followed by hydrogen-based fluidized reduction and melt separation is presented for recovering DRI (direct reduced iron) from high-phosphorus oolitic hematite in this study, and the aim of this study is to provide theoretical and technical basis for

More

Characterization studies on Agbaja iron ore: a high ...

Characterization studies on Agbaja iron ore: a high-phosphorus content ore ...

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