phosphorus removal from iron concentrate

phosphorus removal from iron concentrate

The removal of phosphorus from iron ore by leaching with ...

May 01, 1989· Abstract. 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%). The quality of the ore, as a sinter feed, has been ...

EP1152810A1 - Phosphorus removal from animal waste ...

The subject invention is related to a method for removing bio-available phosphorus from animal waste and soil using an industrial byproduct from a metal manufacturing process. The byproduct is used to treat organic waste, such as animal waste and poultry litter, and immobilize bio-available phosphorus present in them. The byproduct is also used to treat organic waste to produce fertilizers ...

(PDF) The removal of phosphorus from iron ore by leaching ...

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.

Floatability studies of wavellite and preliminary results ...

Dec 01, 2012· The reduction of phosphorus content at the concentrate of some iron ore mines in Mexico, Sweden and Iran, where the apatite is the main phosphorous mineral, can be easily reached through anionic flotation with fatty acids collectors to float the apatite when sodium silicate is used to depress the iron oxides (Subramanian et al., 2002, Ranjbar ...

Roasting-induced phase change and its influence on ...

Apr 11, 2015· In the present study, roasting-induced phase change and its influence on phosphorus removal via leaching has been investigated for high-phosphorus iron ore. The findings indicate that phosphorus in the ore is associated with goethite and exists mainly in amorphous Fe3PO7 phase. The phosphorus remains in the amorphous phase after being roasted below 300°C.

Removal of phosphorus from iron ores by chemical leaching ...

10%· Dec 01, 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.

US3310374A - Process for removing iron from phosphoric ...

US3310374A US242607A US24260762A US3310374A US 3310374 A US3310374 A US 3310374A US 242607 A US242607 A US 242607A US 24260762 A US24260762 A US 24260762A US 3310374 A US3310374 A US 3310374A Authority US United States Prior art keywords iron phosphate phosphoric acid aqueous liquor Prior art date 1962-12-06 Legal status (The legal status is an assumption and is …

v117n4a11 Iron recovery and phosphorus removal from ...

concentrate produced from these resources contains approximately 50% iron (Fe) and 0.8–1.2% phosphorus (P) (by mass) (Ai, Yu, ... Iron recovery and phosphorus removal from oolitic high-phosphorus haematite melting-separation in an electric ironmaking furnace. Highly metallized and direct reduced iron (DRI) is fed at high ...

Ion exchange for concentration of phosphorus in wastewater ...

• Physical/chemical removal process that can concentrate targeted phosphate anions onto exchange media • Transfer of ions from solid surface (media) for similarly charged ions in solution (wastewater) • Reversible process • Synthetic and natural ion exchange medias available -hitec.com

machine to extract phosphorus from iron ore

how to mines remove phosphorus from iron ore. ... Iron ore – Citizendia The typical magnetite iron ore concentrate has less than 0. 1% phosphorus, 3-7% silica and less than 3% .iron ore are a major source of cheap high grade Iron ore . About Iron Ore | PT KUBA PRIMA MINING The typical magnetite iron ore concentrate has less than 0.1% ...

Predictability of Phosphorus Removal Based on ...

This paper presents the predictability of phosphorus removal based on simultaneously removed sulphur and mass-input of iron ore leached in potassium hydroxide. The reaction vessel containing the solution and ore was heated at a temperature of 600°C for 10minutes. The model; P = 61.8477 x 10 -3 μ - 2.27S shows that the predicted concentration of removed phosphorus, is dependent on the mass ...

Nitrogen and Phosphorus Recovery from Wastewater ...

Aug 20, 2015· Alkalinity, pH, and hardness are major factors to consider when using chemical precipitation to remove phosphorus from wastewater. Iron phosphate and its oxyhydroxide complexes approach minimum solubility at pH ranges of 4.0–6.0, while aluminum phosphate and its oxyhydroxide complexes reach minimum solubility at a pH range of 5.0–7.0.

(PDF) Beneficial phosphate recovery from reverse osmosis ...

Consequently, phosphate removal from the RO concentrate might offer few potential benefits, (a) overcome RO concentrate disposal limitations due to P, (b) additional water recovery by allowing installation of additional RO unit stages after phosphate removal.The PhosX np iron nanoparticle based resin used performed better on actual RO ...

Froth Flotation of Iron Ores

Keywords Iron Ore Flotation, Reverse Cationic Flotation, Reverse Anionic Flotation, Alumina Removal, Phosphorus Removal . 1. Introduction . With the depleting reserves of high-grade iron ore in the world, various beneficiation methods have been employed to process intermediate- and low-grade iron ore in an attempt to meet the rapidly growing ...

phosphorus removal from iron concentrate - ALKOHOLIZM

Removal of fine gangue minerals from Chador-malu iron concentrate using hydroseparator 255 Fig 4 Distribution of iron, phosphorus, and silica contents of Chador-malu final flotation concentrate as a function of particle size As indicated, more than 60% of phosphorus and silica in the flotation concentrate

Solid State Desulphurization of Iron Ore and Empirical ...

phosphorus removal based on its as-beneficiated content, iron extraction rate and input concentration of H 2 O 2. Phosphorus present in the iron ore is locked up with the ore. During leaching of the iron ore in the required solutions, as phosphorus is being oxidized by oxygen produced from

Advanced Treatment of Reverse Osmosis Concentrate by ...

Jul 23, 2014· Overall, the removal efficiency of DOC was low. That is, the catalytic effect of Pd seems to be insignificant for organics removal. Recalcitrant organics present in ROC may inhibit the catalytic effect of Pd. Rather, strong adsorption capacity, mainly of iron oxide, may contribute to the removal of nitrogen and phosphorus.

Phosphorus Removal from Waste Waters Using Basic Oxygen ...

Few studies have characterized reactive media for phosphorus (P) removal in passive treatment systems in terms of both batch and continuous flow experiments. This study uses basic oxygen steel slag (BOS) from a U.K. feedstock. Batch experiments demonstrated the effective removal of phosphorus with varying initial pH, initial P concentration, clast size, and ionic strength to represent ...

Membrane Bioreactors factsheet

removal via filtration. The membranes can be designed for and operated in small spaces and with high removal efficiency of contaminants such as nitrogen, phosphorus, bacteria, bio-chemical oxygen demand, and total suspended solids. The membrane filtration system in effect can replace the secondary clarifier and sand fil-

A laboratory study to evaluate the possibility of sulphur ...

A laboratory study to evaluate the possibility of sulphur and phosphorous removal from iron ore concentrate by leaching By Hassan Rezvani Pour, Ali Mostafavi, Tayebeh Shams Pour, Ghobad Ebadi Pour and Amir Haji Zadeh Omran

Amenability for processing of oolitic iron ore concentrate ...

Jun 01, 2013· The removal of phosphorus from iron ore using a low temperature heat treatment with additives, followed by alkaline or water leaching, has been tested by Fisher-White et al., (2009), with phosphorus being lowered from 0.145–0.075%.

REMOVAL OF PHOSPHORUS THROUGH ROASTING OF …

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.

Mechanism of phosphorus removal in beneficiation of high ...

decreases from 0.82% in the raw ore to 0.06% in the magnetic concentrate, and the total iron grade increases from 43.65% to 90.23%, the recovery of iron can reach 87%. Mechanisms of phosphorus removal in the beneficiation of high phosphorous oolitic hematite ore

Synchronous Upgrading Iron and Phosphorus Removal from ...

high-phosphorus oolitic hematite ore. The results showed that a magnetic concentrate with total iron grade of 92.7% and phosphorus content of 0.09% was produced from an oolitic hematite ore containing 48.96% iron and 1.61% phosphorus, where reduction of the iron ore blended with excessive

Phosphorus Removal from Goethitic Iron Ore with a Low ...

phosphorus goethitic iron ores does not remove sufficient amounts of phosphorus. Thermal processing to disrupt the structure of the goethite has been shown to be effective in making the phosphorus associated with goethite available to a leachant solution and a number of researchers have removed phosphorus from iron ores by leaching after a high ...

Carbon source and phosphorus recovery from iron-enhanced ...

Anaerobic fermentation and sulfate reduction (AF-SR) was firstly used for recovery of carbon sources and phosphorus from Fe-enhanced primary sludge (Fe-sludge). With FeCl3 dosage of 30 mg Fe/L, 63.0% of the chemical oxygen demand (COD) and 97.3% of the phosphorus were concentrated from sewage into Fe-sludge. Batch anaerobic fermentation tests of Fe-sludge with and without sulfate addition (AF ...

Solid State Desulphurization of Iron Ore and Empirical ...

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 derived model is dependent on the initial and final pH of the leaching solution. This is because the final pH

Removal of sulfur and phosphorous from iron ore ...

The current study was focused on the removal of sulfur from iron ore concentrate using chemical leaching technique. Magnetite iron ore concentrate was chosen for this purpose. The results obtained from the study showed that more than 90% of the total sulfur content was removed from the iron ore concentrate by the chemical leaching.

Predictability of Phosphorus Removal Based on ...

Phosphorus Removal Based on Simultaneously Removed Sulphur and Mass-Input of Iron Ore Leached in Potassium Hydroxide." Physics and Materials Chemistry. 1, no. 2 (2013): 27-33. doi: 10.12691/pmc-1-2-4. 1. Introduction . The adverse effects of high phosphorus content in iron ore and associated finished products such as iron and steel

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 Complex,. Km. 50 ...

Coagulation and Flocculation in Water and Wastewater ...

Chemical Phosphorus Removal. In many sensitive catchment areas, chemical phosphorus removal is also required for wastewater treatment. Figure 4 shows the general relationship between effluent residual phosphorus concentration and the ratio of metal added to P removed.

Factorial Analysis of Phosphorus Removal during ...

phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [7] 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. R. The aim of this work is to carry out a factorial analysis of phosphorus removed during