(PDF) Processes for phosphorus removal from iron …
It is shown that iron ore concentrate, assaying 62.35 per cent Fe, and 0.20 per cent phosphorus content was manufactured at 90.54 per cent recovery of iron and 87.42 per cent of dephosphorisation ...
Improvement of phosphorus removal from iron ore …
The possibility of phosphorus removal from high phosphorus iron ore using combined microwave pretreatment and ultrasonic treatment was studied. The results indicated that microwave pretreatment significantly increases the efficiency of ultrasonic disintegration and the removal of gangues.
REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC …
REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC IRON ORE WITH ALKALINE EARTH ADDITIVES . Roasting, separation and leaching procedures . The preliminary orientation tests have shown that during leaching with 0.96 M sulfuric acid at boiling temperature for one hour, about 33 % of the phosphorus can be removed.
Removal of phosphorus from iron ores by stone …
1-12-2006 · The results show that phosphorus occurring as apatite phase could be removed by alkali-leaching, but those occurring in the iron phase could not. Sulfuric acid is the most effective among the three kinds of acid. 91.61% phosphorus removal was attained with 1% sulfuric acid after leaching for 20 min at room temperature.
Dephosphorization of Steels – IspatGuru
Iron ore additions can be helpful to maintain ideal FeO content to continue P oxidation in parallel with the decarburization. Kinetics of phosphorus removal Though P equilibrium has been widely studied, the kinetics of P removal has not been studied to that extent.
phosphorous removal from iron ore in solid state
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 economical and rational use of high phosphorus oolitic iron or
Processes for phosphorus removal from iron ore - …
Removal results of above 90% and less than 0.05% residual phosphorus are noticed, which is the maximum value required in most of the products generated in the processing of iron ore. Key words: iron ore; phosphorus removal
(PDF) Removal of phosphorus from iron ores by …
A hydrometallurgical method for the removal of phosphorus from iron ore is presented. The apatite content (∼ 1%) of a Swedish ore is removed (> 95%) by leaching the ore with nitric acid.
The removal of phosphorus from iron ore by …
The removal of phosphorus from iron ore by leaching with nitric acid. Hydrometallurgy, 21: 255-275. A hydrometallurgical method for the removal of phosphorus from iron ore is presented. The apatite content ( ~ 1% ) of a Swedish ore is removed ( > 95 % ) by leaching the ore with nitric acid.
Phosphorus removal from high phosphorus oolitic …
Request PDF | Phosphorus removal from high phosphorus oolitic iron ore by acid leaching | This stone reports the phosphorus removal of high phosphorus oolitic iron ore by acid leaching and its ...
Phosphorus Removal of High Phosphorus Iron Ore …
ScienceDirect JOURNAL OF IRON AND STEEL RESEARCH, INTERNKMONAL. 2010, 17(9): 01-06 Phosphorus Removal of High Phosphorus Iron Ore by Gas-Based Reduction and Melt Separation TANG Hui-qing , GUO Zhan-cheng , ZHAO Zhi-long (Key Laboratory of Ecological and Recycle Metallurgy of Ministry of Education, University of Science and Technology Beijing, Beijing 100083, …
Phosphorus Removal From Iron Ore - bachtalo.de
Phosphorus removal by gravity separation in iron orehosphorous removal from iron ore in solid state combined with the data of the phosphorus content in bioleaching solid residue, the removal percentage of phosphorus, the percentage of ore solid dissolved and the percentage of iron lost, it was concluded that the optimal ore solid concentration for selective removal of phosphorus from high.
The removal of phosphorus from iron ore by …
A hydrometallurgical method for the removal of phosphorus from iron ore is presented. The apatite content (∼ 1%) of a Swedish ore is removed (> 95%) by leaching the ore with nitric acid. The iron loss is less than 0.05% while the alkali metal content is greatly reduced (> 60%).
phosphorous removal from iron ore in solid state
phosphorous removal from iron ore in solid state - archfb.be. 22 Jan 2016,, while the iron grains remained in a solid state; in addition, the phosphorus remained in the slag phase, slag phase from gaseous-reduced, high-phosphorous oolitic iron ore at 1473 K, Based on the iron-slag separation by super gravity, phosphorus was removed effectively from the iron …
phosphorous removal from iron ore in solid state
Processes for phosphorus removal from iron ore a review SciELO , Phosphorus(III) oxide is a white crystalline solid that smells Phosphorus in different types of ore, sulfides in the iron deposits May 1, 1985 Abstract In the Kirunatype iron ores, apatite has been regarded as the most conspicuous mineral , the iron grains remain in .
Phosphorus Removal from Goethitic Iron Ore with a Low ...
Phosphorus Removal from Goethitic Iron Ore with a Low Temperature Heat Treatment and a Caustic Leach Michael John FISHER-WHITE, Roy Randall LOVEL and Graham Jeffrey SPARROW
Removal of Phosphorus From High Phosphorus …
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 were ...
High Phosphorus Iron Ore Processing | Removal Of ...
To Mines Remove Phosphorus From Iron Ore. To mines remove phosphorus from iron ore iron ore wikipedia increasing iron ore demand coupled with the depletion of highgrade hematite ores in the united states after world war ii led to development of lowergrade iron ore sources principally the utilization of magnetite and taconite.
how to remove phosphorus from iron ore - …
To remove phosphorus from iron to a desired level, a charge of the iron.iron ore of up to 8% of the charge weight, or a combination of (i). Phosphorus Removal of High Phosphorus Iron Ore by_ 20111015-Some P in the metal samples existed as slag inclusion was considered to .T o remove phosphorus from the high phosphorus iron ore has been .
REMOVAL OF SULFUR AND PHOSPHOROUS FROM IRON ORE ...
REMOVAL OF SULFUR AND PHOSPHOROUS FROM IRON ORE CONCENTRATE BY LEACHING Hassan REZVANI POUR*, Ali MOSTAFAVI *, Tayebeh SHAMS PUR , Ghobad EBADI POUR**, Amir HAJI ZADEH OMRAN ** * Department of Chemistry, Shahid Bahonar University of Kerman, Pajoohesh Sq., Kerman 76169-14111, Iran, [email protected] ** Gole-gohar Iron Ore