technology process of removal of phosphorus from iron ore

Predictability of Phosphorus Removal Based on

The process provides a reliable technical support for high phosphorus iron ore in countries with low cost and good dephosphorization Further biological processes for phosphorus removal has been evaluated based on the use of several types of fungi some being oxalic acid producing...

Removal of phosphorus from iron ores by chemical leaching

Alkali-leaching and acid-leaching were proposed for the dephosphorization of Changde iron ore which contains an average of 112 for phosphorus content Sodium hydroxide sulfuriced hydrochloric and nitric acids were used for the preparation of leach solutions The results show that phosphorus occurring as apatite phase could be removed by alkali-leaching but those occurring in the iron...

Evaluation of iron loss during the simultaneous acid

However to increase phosphorus removal percentage of particles of iron ore acid solution should be in relatively low concentrations 01 to 03M However according to Silva et al 4 this technique can promote the simultaneous removal of other elements such as iron...

Removal of Phosphorus from High

Request PDF Removal of Phosphorus from High-phosphorus Iron Ore with Preliminary Reduction Treatment and Physical Concentration Fundamental experiments were conducted with the...

Model for Predicting the Concentration of Phosphorus

that phosphorus can be removed from this iron oxide ore through a process associated with hydrometallurgy Phosphorus was removed at a temperature of 250 C and initial solution pH 25 leading to the dissolution of the phosphorus oxide formed This involved using acid leaching process to remove phosphorus from the iron oxide ore in...

EconPapers Technological Challenges of Phosphorus Removal

Abstract 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...

Removal of Phosphorus from High Phosphorus Iron Ores in

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...

Solid State Desulphurization of Iron Ore and Empirical

oxide ore and also predicting removed phosphorus concentrations using empirical models A model was derived for predictive analysis of the concentration of phosphorus removed during leaching of iron oxide ore in sulphuric acid solution 6 The work indicated that phosphorus removal from the iron oxide ore as obtained from experiment and...

Laboratory Studies on Phosphorus Removal from Nigeria s

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 100mm/050mm 050mm/025mm and 025mm/0125mm ore fractions obtained from sieving of the crushed iron ore in Shital Test...

Iron processing

Iron processing - Iron processing - The metal Most blast furnaces are linked to a basic oxygen steel plant for which the hot metal typically contains 4 to 45 percent carbon 06 to 08 percent silicon 003 percent sulfur 07 to 08 percent manganese and 015 percent phosphorus Tapping temperatures are in the range 1 400 176 to 1 500 176 C 2 550 176 to 2 700 176 F to save energy the hot...

Factorial Analysis of Phosphorus Removal during

Hydrometallurgy baseddephosphorization of iron ore as observed from experiment and model prediction 13 has shown that phosphorus - removal during leachingusing oxalic acid solution is highly dependent on the final pH of the leaching solution which varies time and other factor such mass-input of the iron oxide ore and ore mineralogy etc...

Removal of phosphorous through roasting of oolitic iron

The present study is devoted to improvement of the leaching efficiency during phosphorous removal from high phosphorous gravity-magnetic concentrate Before leaching the concentrate has been subjected to roasting with the addition of either Ca OH 2 or CaO The oolitic iron ore is roasted at 900 176 C for one hour This reflects in reaction between alkaline earth additive and quartz...

Determination of Phosphorus in Iron Ore Analytical Chemistry

May 01 2002 0183 32 The determination of phosphate in rocks and iron ores using inductively coupled plasma with optical emission spectroscopy ICP-OES Geochemistry Exploration Environment Analysis 2019...

Comparative Assessment of Phosphorus Removal from

The iron ore was found 1 to contain an average of 112 phosphorus and after the dephosphorization process 9161 phosphorus removal was attained with 1 sulfuric acid after leaching for 20 min at...

Technological Challenges of Phosphorus Removal in High

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...

Alternative Iron making processess

Jan 18 2014 0183 32 With hot metal de-sulphurisation treatment known technology sulphur levels are easily able to be reduced to...

Removal of Phosphorus from High

Removal of Phosphorus from High-phosphorus Iron Ore with Preliminary Reduction Treatment and Physical Concentration Hironari KUBO 1 Nobuhiro MARUOKA2 and Yoshimasa SATO3 1 Faculty of Engineering Fukuoka Institute of Technology 3-30-1 Wajiro-higashi Higashi-ku...

Model for Quantitative Analysis of Phosphorus Removed

removing phosphorus from Agbaja Nigeria iron oxide ore The results of this work 14 show that phosphorus removal 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 An attempt has been made in the past 15 to leach Itakpe iron oxide ore using oxalic acid...

phosphorus removal from iron ore

iron ore phosphorus removal Processes for phosphorus removal from iron ore a review 2015518enspenspThis paper aims at reviewing literature on the occurrence of phosphorus in iron ores from the mines around the world The review extends to the phosphorus removal processes of this mineral to meet the specifiions of the steel industry...

Synchronous Upgrading Iron and Phosphorus Removal

Thus an innovative technology for recovering iron and phosphorus removal from oolitic hematite ore is proposed in this paper high temperature flash reduction-wet magnetic separation in the paper In this new process sodium sulfate was also employed to enhance the reduction roasting of oolitic hematite ore growth of metallic iron grains and...

Potential for application of alkali roast acid leach

Potential for application of alkali roast acid leach technology for removal of phosphorus from iron ore Language English Author co-author Ionkov Krassimir Université de Liége - ULiége >Département Argenco Secteur GeMMe >Traitement et recyclage des matiéres minérales gt...

Dephosphorization Treatment of High Phosphorus Oolitic

Leaching kinetics of high phosphorus oolitic iron ore was well described by the unreacted shrinking core model The process of phosphorus removal was controlled by chemical reaction of interface between apatite and ac The apparent activation energy for dephosphorization reaction was found to...

Improvement of Phosphorus Removal from Iron Ore Using

Improvement of Phosphorus Removal from Iron Ore Using Combined Microwave Pretreatment and Ultrasonic Treatment Mamdouh Omrana b Timo Fabritiusa Ahmed M Elmahdyb Nagui A Abdel-Khalekb Stanislav Gornostayeva a Process Metallurgy Research Group Faculty of Technology University of Oulu Finland b Mineral Processing and Agglomeration Lab Central Metallurgical...

Removal of Phosphorus From High Phosphorus Iron Ores by

May 01 2011 0183 32 Available online at sciencedirect ScienceDirect JOURNAL OF IRON AND STEEL RFSEARCH INTERNATIONAL 2011 18 5 01-04 19 Removal of Phosphorus From High Phosphorus Iron Ores by Selective HCl Leaching Method XIA Wen-tang REN Zheng-de GAO Yi-feng School of Metallurgical and Materials Engineering Chongqing University of Science and Technology...

PDF Processes for phosphorus removal from iron ore

In this paper a study of upgrading of low-grade and high phosphorus containing iron ore was present by using reduction roasting-magnetic separation-acid leaching process where the mineralogy of...

Removal of phosphorus

Jul 09 2016 0183 32 A new approach of removing the phosphorus-rich phase from high-phosphorous iron ore by melt separation at 1573 K in a super- gravity field was investigated The iron-slag separation by super-gravity resulted in phosphorus being effectively removed from the iron-rich phase and concentrated as a phosphorus-rich phase at a temperature below the melting point of iron The samples obtained by...

Model for predicting the concentration of phosphorus

iron oxide ore through a process associated with hydrometallurgy Phosphorus was removed at a temperature of 250C and initial solution pH 25 leading to the dissolution of the phosphorus oxide formed This involved using acid leaching process to remove phosphorus from the iron oxide ore in readiness for steel making process...

The method of purification of iron ore concentrate from

Limited phosphorus removal is achieved by grinding and magnetic separation partly technically possible so this technology is the removal of phosphorus from iron ore as a result Therefore the mechanical methods cannot remove it until the contents satisfying the requirements of...