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dephosphorization treatment of high phosphorus oolitic

The dephosphorization of high phosphorus iron ore has been researched in many countries, such as physical separation, 6,7,8,9,10) bio-leaching, 11,12) flotation, 13,14) hydrometallurgical process. 15,16) But the oolitic structure of the ore prevents the effective use of physical concentration and flotation separation, and necessitates the use of chemical leaching

dephosphorization treatment of high phosphorus iron ore by

The average size distribution of tion Process the phosphorus-containing alumino–silicate gangue phase The vaporization behavior of phosphorus in the non- was in the order of 5 m m, implying that the effective de- isothermal reduction process of the high phosphorus iron phosphorization treatment of the as-received high phospho- ore was investigated by using a quadrupole mass spectrom- rus iron ore …

dephosphorization of high-phosphorus iron ore using

Mar 31, 2015 · High-phosphorus iron ore is traditionally dephosphorized by chemical process with inorganic acids. However, this process is not recommended nowadays because of its high cost and consequent environmental pollution

dephosphorization of high phosphorus oolitic hematite by

Aug 01, 2017 · Xia et al. (2011) studied the phosphorus removal from high phosphorus iron ores by selective HCl leaching, and the content of phosphorus in iron ore can comply completely with the requirements of steel production after the dephosphorization reaction. Iron ore with Fe < 60% can be used as raw material to produce the direct reduced iron, by coal-based direct reduction, or the slag/metal separation process of the reduced iron from the oolitic high-phosphorus iron ore …

ahydrometallurgical process for the dephosphorizationof

May 01, 1989 · A process is proposed for the dephosphorization of iron ore. The process consists of an inte- grated treatment for the removal of the phosphorus from the ore by leaching and further process- ing of the leach solution. Phosphoric acid is extracted by …

investigation of ductileiron dephosphorization

Dephosphorization Treatment of High Phosphorus Iron Ore by dephosphorization treatment of high phosphorus iron ore pre-reduction, air jet milling and screening methods. Pro-cessing parameters to improve the total iron yield and the dephosphorization behavior are also proposed

dephosphorization treatment of high phosphorus iron oreby

The behavior of phosphorus in the solid state pre-reduction and dephosphorization treatment processes of high phosphorus iron ore by mechanical crushing and screening methods were investigated in

dephosphorization treatmentofhigh phosphorusoolitic

Dephosphorization of high-phosphorus iron ore is an unsolved problem worldwide so far. Biotechnology could be a cost-effective and environment-friendly way to solve this problem

dephosphorization of high-phosphorus iron oreusing

Mar 31, 2015 · High-phosphorus iron ore is traditionally dephosphorized by chemical process with inorganic acids. However, this process is not recommended nowadays because of its high cost and consequent environmental pollution. With the current tendency for development of a low-cost and eco-friendly process, dephosphorization of high-phosphorus iron ore through microbial process with three …

gaseous reduction of hematiteiron orecontaininghigh

The behavior of phosphorus in the solid state pre-reduction and dephosphorization treatment processes of high phosphorus iron ore by mechanical crushing and screening methods were investigated in

phosphorus removal of high phosphorus iron oreby gas

Sep 01, 2010 · Carbon deposition [Boudouard reaction Eqn. (Z)] under CO atmos- phere is considered to be the main reason for no other Issue 9 Phosphorus Removal of High Phosphorus Iron Ore by Gas-Based Reduction and Melt Separation 5 800 400 (b) Point 1 I Table 2 Chemical composition of slag sample and iron sample after melt separation % ~~ CO-reduced ore sample Hz-reduced ore sample Element Slag …

(pdf)processes for phosphorus removal from iron ore- a

Phosphorus can be removed from iron ore by very different routes of treatment. The genesis of the reserve, the mineralogy, the cost and sustainability define the technology to be applied. The

what is thephosphorusiniron ore- sovica

In the process of resource utilization of high phosphorus iron ores, phosphorus should be removed first.Compared to other dephosphorization methods, selective leaching with acid has special advantages such as high dephosphorization ratio, low iron loss and so on.However, a large amount of acidic wastewater containing phosphorus was produced after acid leaching

a novel direct reduction-flash smelting separation process

Jan 02, 2021 · Therefore, the dephosphorization before or in ironmaking process is a key step for the utilization of HPIO. There are two main methods to achieve dephosphorization of high phosphorus ore: the hydrometallurgy method and the pyrometallurgy method

dephosphorization of unroasted oolitic oresthrough

Mar 01, 2019 · The present study of phosphorus removal from an unroasted iron ore via alkaline leaching method examined the possibility of dephosphorization from goethite ore at low temperature. The iron ore concentrate used in this study is an oolitic type of iron ore consisting primarily of goethite, in which phosphorus does not form a discrete mineral phase, but instead is diffused throughout the entire …

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