collectors for the flotation of phosphorus in iron ore

CN101823026A

The invention relates to a combined collecting agent and a method for reverse flotation phosphorous reduction of high phosphorus oolitic hematite. The combined collecting agent is a complex anionic collecting agent, namely a combination of MG and MY in a ratio of 2:1, wherein the effect of the synergistic action of the MG and the MY is obviously better than that of the single use of the MG and ...

Flotation Reagents

 · Fatty acid collector promoter for flotation of non-metallic minerals. Aliphat 44-E Fractionally distilled tall oil fatty acids. Oleic and linoleic acids low in rosin acids. Undiluted liquid.5 to 2.0: Very effective collector-promoter for flotation of fluorspar. Alkaterges A, E & T Cationic oil soluble surface active agents similar to Alkaterge C.

Method of producing iron ore concentrates by froth flotation

We claim: 1. In a process for the removal of phosphorous from, and for the production of, iron ore concentrates by flotation, in which crushed crude iron ore is mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reagent system and a floated foam containing said phosphorous formed therein along with a flotation residue comprising an ...

Characterization of Mertainen Iron Ore Deposit for Mineral ...

 · The results from the pilot flotation test work showed that the required silica grade (0.50% SiO2) was achieved at an iron (Fe) recovery of over 95% with both tested flotation collectors. In 2006, LKAB tackled a challenging expansion strategy that included studying known iron ore deposits in Northern Sweden to investigate the possibilit

Effect of sodium silicate on the reverse anionic flotation ...

of a siliceous–phosphorus iron ore ... collector/frother reagent from a local producer) are used as collec-tor, a mixture of NaOH:Na 2CO 3 as pH modifier and sodium silicate as the iron oxides depressant. Flotation tests on the feed samples of Chador Malu plant, using a Denver flotation machine, were conducted. The solid percentage

The process of realizing iron ore beneficiation ...

 · The reverse flotation removal process of iron ore beneficiation equipment, as one of the separation processes, has special significance. 1.Reverse flotation of iron ore for phosphorus removal. Phosphorus impurities in iron ore mainly exist in the form of apatite and collophane, with a small amount of rare earth phosphate minerals. Although the floatability […]

Polysaccharide Depressants for the Reverse Flotation of ...

 · Iron ore flotation usually requires grinding of the ore to a particular size smaller than 149 µm to achieve liberation. In general the following strategies can be used for iron ore flotation. 1. Reverse cationic flotation of quartz. 2. Direct flotation, in which iron oxide minerals (hematite) are floated using anionic collectors. 3.

Flotation collectors optimized performance

Flotation of iron ore The main objective of iron ore flotation is to upgrade the concentrate by removing silicates and/or phosphorus-containing minerals. The use of silica flotation has increased in recent decades. The trend will continue as more complex ores have to be mined and higher-grade iron ore concentrates with fewer

(PDF) Collecting Agent-Mineral Interactions in the Reverse ...

 · The implications of collecting agent-mineral interactions for improving iron ore flotation are discussed. Species distribution diagrams of Ca 2+ as a function of pH (total concentration = 1 × 10 ...

Processes for phosphorus removal from iron ore

2.2.3.2 Flotation. There are many citations in literature on the reduction of phosphorus in iron ore through anionic flotation, using a fatty acid as collector and sodium silicate as a depressant of iron oxides, when the mainphosphorus-bearing mineral is apatite (Ranjbar, 2002 RANJBAR, M. Dephosphorization of iranian iron oxide fines by flotation.. Erzmetall, v. 55, n. 11, p. 612-62

How to Remove Phosphorus from Iron Ore? | miningpedia

 · The future iron ore sorting process needs to pay attention to the following aspects. Research on efficient dephosphorization flotation reagents. At present, the selectivity of collectors used to reduce phosphorus in iron ore is not very good, and the iron recovery rate is not high.

phosphate floatation in iron ore

Iron Ore Flotation In Reverse Iron Ore Flotation Clariant has been developing a comprehensive range of collectors for iron ore flotation to remove undesirable silicate minerals impurities The FLOTIGAM series includes ether amines used for hematite iron ore and ether diamines used for magnetite iron ore. phosphorus ore processing flotation machines.

Iron ore_Ethoca

The main objective of iron ore flotation is to upgrade the concentrate by removing silicates and/or phosphorus-containing minerals. The use of silica flotation has increased in recent decades. The trend will continue as more complex ores have to be mined and higher-grade iron ore concentrates with fewer impurities are requested by the steel ...

Existing and New Processes for Beneficiation of Indian ...

 · Iron ore collectors used in the flotation processes can be broadly classified into two categories, such as anionic and cationic collectors. Long-chain fatty acids and their salts are mostly used as the anionic collectors for floating the iron minerals, while the cationic collectors, used in reverse flotation, mostly contain primary aliphatic ...

INFLUENCE OF FLOTATION PARAMETERS ON DECREASING …

flotation while -38 μm was the best for removal with water flow. With 100 g/Mg of KAX and one-stage flotation, S content was 0.191% while in two-stage flotation it was reduced to 0.097%. keywords: iron ore, Gol-e-Gohar concentrator, sulfur removal, phosphorus removal _____ * Mining Engineering Department, Yazd University, Yazd, Iran

Developments in the physiochemical separation of iron ore ...

 · If the phosphorus is present in the iron ore as discrete phosphorus-containing minerals, then flotation presents a viable option for reducing the phosphorus content. For example, the LKAB concentrator in Kiruna, Sweden, treats by flotation a high phosphorus magnetite ore, which typically contains about 1% P.

US5540336A

Iron ore concentrates can be obtained by the flotation of iron ores providing mixtures containing at least one ether canine of formula (I): R p.1 O--(C b.n H b.2n) b.y --NH--(C b.m H b.2m --NH) b.x H, in which R 1 is a linear or branched chain aliphatic hydrocarbon moiety having 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds; n and m independently of one another represent the ...

Separation process of iron ore,iron ore magnetic ...

 · Polymetallic weakly magnetic iron ore refers to phosphorus-containing hematite and siderite ore. Most concentrators will first use gravity separation, flotation, strong magnetic separation or a combined process to recover iron minerals, and then use the flotation process to recover phosphorus …

methods of iron ore treatment

Iron ore - Wikipedia, the free encyclopedia. Iron ore mining methods vary by the type of ore being mined. There are four main types of iron ore deposits worked currently, depending on …

Kyushu University | Department of Earth resources and ...

At concentrations close to flotation practice (< 20 ppm) the effect of frother was negligible. With increasing concentration (up to 100 ppm) F150 and pentanol decreased charge and MIBC and heptanol increased negative charge but the change remained small. An effect on bubble charge does not appear to contribute to the action of frothers ...

(PDF) Processes for phosphorus removal from iron ore

It covers different types of collecting agents used in reverse iron ore flotation, the surface characteristics of minerals commonly present in iron ores (e.g., iron oxides, quartz, alumina-bearing ...

Minerals | Free Full-Text | Collecting Agent–Mineral ...

Froth flotation has been widely used in upgrading iron ores. Iron ore flotation can be performed in two technical routes: direct flotation of iron oxides and reverse flotation of gangue minerals with depression of iron oxides. Nowadays, reverse flotation is the most commonly used route in iron ore flotation. This review is focused on the reverse flotation of iron ores, consisting of reverse ...

Detection Study on the Mineral Processing Reagents ...

The collectors can be applied to iron ore reverse flotation, apatite flotation, and fluorite flotation. It has better flotation experiment results than the traditional collector that using in field production. ... Progress of flotation collectors for phosphorus ores, Journal of Wuhan Institute of Technology, [4] LI Xiaoying1,PENG Dewei2 ...

Removal of Silica and Alumina as Impurities from Low-Grade ...

This study investigates the removal of silica and alumina as impurities from hematite based low-grade iron ore containing 34.18 mass% iron, 31.10 mass% of silica and 7.65 mass% alumina. Wet high-intensity magnetic separation (WHIMS) and reverse flotation (RF) were investigated. In WHIMS process, 93.08% of iron was recovered with a grade of 53.22 mass% at an optimum magnetic density of …

Application of biotechnology in iron ore beneficiation ...

 · Efforts are now being directed to the application of biomining to oxide ore systems as high-grade ore becomes scarce. This chapter discusses the potential exploitation of microorganisms and their metabolites for the bioleaching of phosphorus from iron ore and as bioreagents for the selective flotation and flocculation of iron ore minerals.

「floatation process ore mine com bot」

Flotation. Through a chemical treatment known as flotation, the ore is further purified, for example of the phosphorus mineral apatite. In the flotation process, a reagent is added to the slurry. The reagent binds the apatite in small air bubbles, which are removed from the slurry as foam. Additives and filtration . …

Froth Flotation of Iron Ores

the most popular flotation route in iron ore industry, the direct flotation of iron ox ides still appears desirable for some low grade iron ores that contain a vast amount of quartz. For example, at Republic Mine, Michigan, U.S.A., a hematite ore is upgraded from 36.5% Fe to 65.4% Fe with a Fe recovery of 82.5% using the direct flotation route.

Increasing Iron and Reducing Phosphorus Grades of …

 · Experimental research on a high-phosphorus oolitic iron ore containing 41.65% iron and 1.26% phosphorus that had been treated by suspended flash magnetic roasting, indicated that a concentrate with an iron grade above 60% could be produced by LIMS, but the phosphorus content exceeded 0.90% [13–15].

US4008151A

A process for dressing phosphate ores with gangues containing carbonates, by flotation, wherein the phosphates and carbonates contained in the ore to be treated are separated by subjecting the ore to a reverse flotation treatment utilizing a combination of reagents comprising a carbonate flotation collector and agents which modify the surface physical and chemical properties of the phosphate ...

(PDF) Electrokinetic properties of wavellite and its ...

However, the association of secondary phosphates with apatite particles through grains intergrowth or apatite surface coating decreases the flotation selectivity and consequently the total phosphorus recovery [12,13].Phosphorus removal from iron ore concentrates has been a challenge for most iron ore operations, particularly in the case of ...

Investigations on soluble starch as the depressant of ...

from the high phosphorus iron ores would significantly extend the reserves of phosphorus -content iron ores, and enhance the development of iron and steel industries (Fisher-White et al., 2012). Reverse flotation, has been considered as one of the most widely utilized technology for high