dephosphorization iron ore oolitic - search results

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  • Applications: : Dephosphorization of unroasted oolitic ores through The present study of phosphorus removal from an unroasted iron ore via alkaline leaching method examined th

dephosphorization iron ore oolitic - search results

  • Dephosphorization of unroasted oolitic ores through

    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 entireThe dephosphorization of high phosphorus iron ore has been researched in many countries, such as physical separation, 6,7,8,9,10) bioleaching, 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 leachingDephosphorization Treatment of High Phosphorus Oolitic

  • Dephosphorization of high phosphorus oolitic hematite by

    01/08/2017· Most of the earlier studies on dephosphorization by acid leaching were conducted to study the effect of time, temperature, acid concentration, etc (Xia et al, 2011, Yu and Muhammed, 1990) The leaching kinetics of the high phosphorus oolitic iron ore was rarely investigated, except for the H 2 SO 4 leaching kinetics of the typical oolitic iron ore by (Yu et al, 2013) However, HCl leachingphorous iron ore is in the form of oolitic structure Thus, the separation of Fe and P and the regrowth process are necessary before magnetic separation 32 Characterization of Products The chemical composition of the sample after magnetic separation are shown in Table 4 According to the research of Ishizaki et al,19) in the case of magnetitecoal composite pellets irradiated withDephosphorization of Iron Ore Bearing High Phosphorous by

  • Strengthening iron enrichment and dephosphorization of

    14/04/2020· The efficient development and utilization of highphosphorus oolitic hematite is of great strategic significance for the sustainable supply of ironore resources in China In this paper, the mechanism of hightemperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roastingleaching process was studied by Xray diffractionThe invention relates to a highphosphate oolitic iron ore dephosphorization method The raw ore is roasted at the temperature of between 400 DEG C and 800 DEG C after crushing, high intensity magnetic separation is carried out after ore grinding, and acid leaching is carried out to ore powder by using industrial sulfuric acid or industrial nitric acid or industrial hydrochloric acid with theCNA Dephosphorization method for oolitic high

  • Strengthening iron enrichment and dephosphorization of

    26/05/2019· The efficient development and utilization of highphosphorus oolitic hematite is of great strategic significance for the sustainable supply of ironore resources in China In this paper, the mechanism of hightemperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roasting–leaching process was studied by Xray diffractiondirect reduction iron (DRI) from highphosphorus oolitic hematite, using coal slime and blast furnace dust as reductant, is investigated The possible use of slime coal and blast furnace dust as reductant and the dephosphorization behavior during the process of direct reduction was studied Experimental results showed that both blast furnace dust and coal slime can be used as reductant underDephosphorization Behavior of HighPhosphorus Oolitic

  • Dephosphorization of unroasted oolitic ores through

    01/03/2019· 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 entireThe 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 entireDephosphorization of unroasted oolitic ores through

  • CNA Dephosphorization method for oolitic high

    The invention relates to a highphosphate oolitic iron ore dephosphorization method The raw ore is roasted at the temperature of between 400 DEG C and 800 DEG C after crushing, high intensity magnetic separation is carried out after ore grinding, and acid leaching is carried out to ore powder by using industrial sulfuric acid or industrial nitric acid or industrial hydrochloric acid with the26/05/2019· The efficient development and utilization of highphosphorus oolitic hematite is of great strategic significance for the sustainable supply of ironore resources in China In this paper, the mechanism of hightemperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roasting–leaching process was studied by Xray diffractionStrengthening iron enrichment and dephosphorization of

  • CNA Method for realizing dephosphorization of

    The invention discloses a method for realizing dephosphorization of olitic highphosphorus iron ore by use of biomass charcoal, which realizes direct preparation of lowphosphorus liquid iron by combining direct reduction and hightemperature scrap iron separation The method comprises the following steps of: preparing highgasification biomass charcoal; breaking the ore charge; preparingThe iron ore used in this work is a typical oolitic goethitic iron ore with high phosphorus The process of phosphorus removal from this ore is difficult because the phosphorus is not present as distinct minerals As a result, no physical beneficiation process is able to separate the phosphorus from the iron bearing phases The current concentrate contains low iron grade (Fe ~49%) and highDEPHOSPHORIZATION OF OOLITIC GOETHITE IRON ORE BY

  • The Study On Derect Dephosphorization Of Oolitic Hematite

    With the domestic iron ore resources available for blast furnace smelting increasingly scarce and the rapid rise in international iron ore trade prices,the development and utilization of the “difficulFont Size: a A A The Study On Derect Dephosphorization Of Oolitic Hematite By Microwave Heating: Posted on:: Degree:Master: Type:Thesis: Country:China: Candidate:W Z Yuan: Fulldirect reduction iron (DRI) from highphosphorus oolitic hematite, using coal slime and blast furnace dust as reductant, is investigated The possible use of slime coal and blast furnace dust as reductant and the dephosphorization behavior during the process of direct reduction was studied Experimental results showed that both blast furnace dust and coal slime can be used as reductant underDephosphorization Behavior of HighPhosphorus Oolitic

  • Research For Dephosphorization And Iron Increase Of

    With the development of metallurgical industry, iron ore concentrate quality requirement more and more be high, new handicraft of metallurgy putting into effect, the mass to iron ore concentrate bringFont Size: a A A Research For Dephosphorization And Iron Increase Of Oolitic Hematite: Posted on:: Degree:Master: Type:Thesis: Country:China: Candidate:Q Wen: Full Text:PDF: GTID22/05/2017· Unlike previous dephosphorization studies, the present work complies with a concept to recover phosphorus within the utilization of highphosphorus oolitic iron ores to prepare FeP alloy for highphosphorus steel productionSimultaneous enrichment of iron and phosphorus can be achieved by directly alloying the highphosphorus oolitic iron ore at high reduction temperatures (≥1623 K)Simultaneous Recovery of Iron and Phosphorus from a High

  • Dephosphorization of unroasted oolitic ores through

    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 entireThe invention relates to a highphosphate oolitic iron ore dephosphorization method The raw ore is roasted at the temperature of between 400 DEG C and 800 DEG C after crushing, high intensity magnetic separation is carried out after ore grinding, and acid leaching is carried out to ore powder by using industrial sulfuric acid or industrial nitric acid or industrial hydrochloric acid with theCNA Dephosphorization method for oolitic high

  • Study on dephosphorization mechanism by roasting iron ore

    Study on dephosphorization mechanism by roasting iron ore pellets with high phosphorus content DU Yongqiang, et al Study on mechanism of oolitic hematite reduction dephosphorization by magnetic separation [J] Mining and metallurgy engineering,2014,34(05):7477+83 [5] Wang H Study on high phosphorus oolitic hematite gasification and dephosphorization by sintering [D] North ChinaThe iron ore used in this work is a typical oolitic goethitic iron ore with high phosphorus The process of phosphorus removal from this ore is difficult because the phosphorus is not present as distinct minerals As a result, no physical beneficiation process is able to separate the phosphorus from the iron bearing phases The current concentrate contains low iron grade (Fe ~49%) and highDEPHOSPHORIZATION OF OOLITIC GOETHITE IRON ORE BY

  • Dephosphorization Behavior of HighPhosphorus Oolitic

    direct reduction iron (DRI) from highphosphorus oolitic hematite, using coal slime and blast furnace dust as reductant, is investigated The possible use of slime coal and blast furnace dust as reductant and the dephosphorization behavior during the process of direct reduction was studied Experimental results showed that both blast furnace dust and coal slime can be used as reductant underThe efficient development and utilization of highphosphorus oolitic hematite is of great strategic significance for the sustainable supply of ironore resources in China In this paper, the mechanism of hightemperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roastingleaching process was studied by Xray diffraction (XRD), vibrationStrengthening iron enrichment and dephosphorization of

  • (PDF) PROCESS ORIENTED CHARACTERIZATION OF OOLITIC IRON

    A flowsheet comprising roasting followed by grinding and low intensity magnetic separation has been tested for dephosphorization of limonite iron ore from Huimin, China, having 34% Fe and 080% P (Bai et al, 2012) The method has involved blending of the ore with 20% carbon and 10% Na2O, followed by thermal treatment at 1050°C for 150 min and clinker grinding to 90%, –38 μm The ironResearch for Dephosphorization and Iron Increase of Oolitic Hematite Author: WenQin Tutor: PengHuiQing School: Wuhan University of Technology Course: Mineral Processing Engineering Keywords: Oolitic hematite Mention iron drop phosphorus High gradient magnetic separator Reelection Peptization dephosphorization CLC: TF53 Type: Master's thesis Year: 2006 Downloads: 568 Quote:Research for Dephosphorization and Iron Increase of

  • Research For Dephosphorization And Iron Increase Of

    With the development of metallurgical industry, iron ore concentrate quality requirement more and more be high, new handicraft of metallurgy putting into effect, the mass to iron ore concentrate bringFont Size: a A A Research For Dephosphorization And Iron Increase Of Oolitic Hematite: Posted on:: Degree:Master: Type:Thesis: Country:China: Candidate:Q Wen: Full Text:PDF: GTIDResearch Prospect of Enriched Iron and Dephosphorization of High Phosphorus Oolitic Hematite Zhou Wentao 1,2 , Han Yuexin 1,2 , Sun Yongsheng 1,2 , Gao Peng 1,2 , Li Yanjun 1,2 1Research Prospect of Enriched Iron and Dephosphorization