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Phosphorous Removal from iron ore in solid state

Processes for phosphorus removal from iron ore a review

Xu et al. investigated the phosphorus removal of oolitic hematite ore of high content of iron by applying a reductive calcination with dephosphorizing agent (Na 2 SO 4 and Na 2 CO 3). The calcined mass was subjected to two stages of magnetic separation and grinding. The phosphorus content dropped from 0.82% to 0.06% and iron from 43.65% to 60.23% with 87% mass recovery. Analysis showed that 20

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phosphorous removal from iron ore in solid state

phosphorous removal from iron ore in solid state. The distribution characteristics of phosphorus in the metallic iron, and the reduction behaviors of hematite and fluorapatite during solid-state reductive roasting of a phosphorus-rich (1.3 mass%) oolitic hematite ore were investigated in the temperature range of 900°C–1200°C.

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Solid State Desulphurization of Iron Ore and Empirical

that phosphorus removal from the iron oxide ore as obtained from experiment and derived model is dependent on the initial and final pH of the leaching solution. This is because the final pH of the leaching solution is greatly determined by the initial pH which is function of hydrogen ion concentration. A similar work [7] shows that prus hospho removal is dependent on leaching temperature. The

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Solid State Desulphurization of Iron Ore and Empirical

Department of Chemical Engineering, Enugu State University of Science and Technology, Enugu, Nigeria 30-45 days. In countries having high phosphorus-iron ore, the highlighted dephosphorization process is capable of providing a reliable technical support; giving good dephosphorization at low cost. Phosphorus removal using some biological processes have been evaluated based on the use of

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Phosphorous Removal From Iron Ore In Solid State

phosphorus removal from iron ore in solid state. Steel in Ancient Greece and Rome. T Romans around 1100oC, smelting = solid state conversion, tabe bloom composition, considered a serendipitous result of the

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Removal of phosphorus from iron ores by chemical

According to the melting behavior of high phosphorous iron ore gaseous reduction product at 1473 K, the iron grains remain in solid state, and the other minerals have formed into slag phase, as

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Removal of Phosphorus from High Phosphorus Iron

[10] Wang J C, Shen S B, Kang J H, et al. Effect of ore solid concentration on the bioleaching of phosphorus from high-phosphorus iron ores using indigenous sulfur-oxidizing bacteria from municipal wastewater. Process biochemistry, 2010, 45(10): 1624-1631.

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Solid State Desulphurization of Iron Ore and Empirical

The work indicated that phosphorus removal from the iron oxide ore as obtained from experiment and derived model is dependent on the initial and final pH of the leaching solution. This is because the final pH of the leaching solution is greatly determined by the initial pH which is function of hydrogen ion concentration. Phosphorus removal has been observed [7] to also be dependent on leaching

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Solid State Desulphurization of Iron Ore and Empirical

Department of Chemical Engineering, Enugu State University of Science and Technology, Enugu, Nigeria 30-45 days. In countries having high phosphorus-iron ore, the highlighted dephosphorization process is capable of providing a reliable technical support; giving good dephosphorization at low cost. Phosphorus removal using some biological processes have been evaluated based on the use of

More

Solid State Desulphurization of Iron Ore and Empirical

that phosphorus removal from the iron oxide ore as obtained from experiment and derived model is dependent on the initial and final pH of the leaching solution. This is because the final pH of the leaching solution is greatly determined by the initial pH which is function of hydrogen ion concentration. A similar work [7] shows that prus hospho removal is dependent on leaching temperature. The

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Removal of Phosphorus From High Phosphorus Iron

01/05/2011· Issue 5 Removal of Phosphorus From High Phosphorus Iron Ores by Selective HC1 Leaching Method -3. 0.5 1.0 1.5 2.0 2.5 Hydrochloric acid roncentratiod(mo1.L') Fig. 3 Change of dephosphorization ratio with hydrochloric acid concentration 2.4 Effect of reaction temperature When the reaction time, hydrochloric acid con- centration, stirring strength, particle size and liq- uid-solid ratio

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Removal of phosphorus from iron ores by chemical

The removal of phosphorus from iron ore by leaching with nitric acid[J]. Hydrometallurgy, 1989(21): 255–275. [8] Mamoun M, ZHANG Yu. A hydrometallurgical process for the dephosphorization of iron ore[J]. Hydrometallurgy, 1989(21): 277–292. [9] Forssberg R, Asolfsson G. Dephosphorisation of high-phosphorus iron ores by means of acid leaching[J]. Erzmetal, 1981, 34: 316–322. Google Scholar

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REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC IRON ORE

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 concentrate. Before leaching the

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v117n4a11 Iron recovery and phosphorus removal from

solid-state carbon-based reduction technology and is applicable for processing iron ore as well as iron-oxide-containing materials (Mcclelland and Metius, 2003). Moreover, it has been applied for processing complex iron minerals such as vanadium titanomagnetite (Chen and Chu, 2014). The FASTMELT® process comprises two stages: direct reduction in a rotary hearth furnace (RHF) followed by Iron

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Factorial Analysis of Phosphorus Removal during

Phosphorus Removal from Nigeria`s Agbaja Iron Ore by Aspergillus niger, Inter. Res. J. Eng. Sc. Tech. 5(1):54-58. [8] Ameh, E. M. (2013). Dephosphorization of Agbaja Iron Ore By Sintering And Bioleach ing Processes. Ph.D Thesis, Nnamdi Azikiwe University Awka, Anambra State, Nigeria. [9] Nwoye, C. I. (2008). C-NIKBRAN; Data Analytical Memory. jmest.org JMESTN42350143 315 . Title: Solid

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