phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work show that phosphorus removal [4] 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. Experimental processes and derived models

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 …

Agbaja mine location and details. The iron ore mine is located on the Agbaja plateau, approximately 15km northwest of Lokoja city in Kogi State, and approximately 165km southwest of Abuja, the capital city of Nigeria. The plateau comprises a shallow, flat-lying channel iron deposit (CID) that is divided into two mining areas (Stage 1 and Stage 2).

Jul 07, 2015· Title: Central composite design in optimization of the factors of dephosphorization of agbaja iron ore, Author: IJTEEE, Name: Central composite design in optimization of the factors of ...

Feb 02, 2017· Naturally there came about a shortage of iron ore and especially low phosphorus iron ore. The issue of phosphorus has bedevilled the further development of …

Aug 14, 2008· Abstract BACKGROUND: Reject water (return liquor) from dewatering of anaerobically digested activated sludge in municipal wastewater treatment plants contains from 10 to 50% of the phosphorus load ...

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

Comparative phosphorus removal capability of a microbial fungus-Aspergillus terreus and a bacterium-Bacillus subtilis from Nigeria's Agbaja iron ore was investigated. Manual crushing and sieving of the iron ore in Shital Test Kits produced 5 grain size distributions namely: ≥1.0mm, 1.0mm/0.50mm, 0.50mm/0.25mm, 0.25mm/0.125mm, 0.125mm/0.00mm, from which the first and last grain sizes were ...

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.125mm ore fractions obtained from sieving of the crushed iron ore in shital test.

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 results of this work

An attempt has been made to investigate the removal of phosphorus from Agbaja iron ore using Acidothiobacillus ferroxidans bacterium. The bacterium strain was isolated from Agbaja high phosphorus iron ore. Various bacterial loads of the bacterium were cultivated in a crushed iron ore of 60 m particle size. The effects of time and microbial population on the biodephosphorisation of the ore …

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.

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.

Author: Ibeanu Vivian Ifeoma Department: Applied Microbiology Affiliation: Nnamdi Azikiwe University Awka. Study on the potential of bacterial species to remove phosphorous (P) from Nigeria's Agbaja iron ore was carried out with careful monitoring of the population as well as the pH of the system. 0.50/0.25mm fraction obtained from sieving of the crushed iron ore in Shital Test kits, were ...

Nov 30, 2017· Iron ores are used in blast furnace for the production of pig iron; Agbaja Iron ore has an estimated reserve of over I billion metric tonnes. Unfortunately, this large reserve cannot be utilized for the production of pig iron due to its high sulphur and phosphorus contents. In addition, the ore cannot be beneficiated easily like Itakpe and […]

May 01, 2015· With increasing demand for steel and depletion of high-grade iron ore deposits, more research efforts are being directed toward extending the life of existing ore reserves and developing technology to treat low-grade iron ore resources. Among all the reported technologies, biotechnologies in mineral processing — specifically bioleaching and microbially induced flotation — have emerged to ...

May 02, 2013· From Earth to Earth Some Metals Also – University of Calabar. the work was to establish the suitability of Itakpe iron ore as a replacement for imported …. manganese and phosphorus dissolve in the liquid iron.… which lead to the oxidation of Mn and Si in iron and the removal of sulphur dissolved in iron. ….. Iron ore was located at Agbaja, Itakpa and Udi; suitable Limestone at Jakura, …

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

2.1 Phosphate occurrences. Iron ore of high phosphorus content coexists with other minerals in the form of apatite or fluorapatite. Phosphorus is spread on the edge of mineral particles of iron oxide and embedded in quartz or carbonate minerals and a small amount is present in the iron mineral grid (Xia, 2011 XIA, W., REN, Z., GAOY. Removal of ...

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.

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}, ISSN: 2325-4076. INTRODUCTION . The need for a drastic reduction in the concentrations of phosphorus present in iron ore as a way of

Removal of phosphorus from Nigeria's Agbaja iron ore through the degradation ability of Micrococcus species O. W. Obot1* and C. N. Anyakwo2 1Department of Mechanical Engineering, Faculty of Engineering, University of Uyo, Nigeria. 2Department of Metallurgical and Materials Engineering, Federal University of Technology, Owerri, Nigeria.

• Preliminary investigations to produce steel billet from Agbaja ore at laboratory scale been completed • Successfully demonstrated pre‐reduction of ore and smelting to produce pig iron with 98% Fe is achievable • Phosphorus and carbon predominantly reported to alloy during smelting and

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.

The Agbaja iron ore reserve with an estimated 47% F e content is, however, also associated with high phosphorous (P) content and has been categorized as non beneficial (Amadi et al, 1982; Uwadiale and Nwoke, 1983). The two problems of the high phosphorus content in Agbaja iron ore and its beneficiations difficulties, which were

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.

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, currently a technological ...

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, is dependent on the mass ...