Improving reverse flotation of magnetite ore using pulse ...

Jul 01, 2019· The reverse flotation performance of magnetite ore in the flotation column was enhanced by the pulse magnetic field. The possible mechanisms of this enhancement are speculated as follows. In the absence of a magnetic field, no additional magnetic force exists.

Reverse Combined Microflotation of Fine Magnetite from a ...

Magnetite is an essential iron-bearing mineral. The primary method of magnetite ore beneficiation involves successive steps of crushing, grinding, and magnetic separation. Reverse cationic flotation is used at the final stage to remove silicate and aluminosilicate impurities from the magnetite concentrate and reduce silica content to 1–3%, depending on metallurgical processing route ...

A Simple Introduction on the Magnetite Reverse Flotation ...

The cationic collector in the magnetite reverse flotation process is Lilaflot collector. When the dosage of the Lilaflot collector increase to 30-50g/t, the iron grade of the iron concentrate is up to 69.90%, the silica 2.80%, which is suitable for a direct reduction of iron concentrate. The sulfur content of …

Improving reverse flotation of magnetite ore using pulse ...

The reverse flotation of magnetite ore was improved using a pulse magnetic field. • The pulse magnetic field increased the recovery and grade of concentrate Fe. • The pulse magnetic field provided high selectivity to depress magnetite particles.

Magnetite Ore Mining Solution - Mineral Processing

In order to obtain high-grade concentrate, magnetite concentrate can be treated by reverse flotation or high-frequency fine screen. In addition, in order to further improve the recovery rate, processes such as tailings gravity separation may also be considered to further recover magnetic minerals. Polymetallic magnetite beneficiation

Research on Cationic Reverse Flotation of Magnetic ...

An experimental research to improve the grade of a magnetic concentrate from a concentrator using the cationic reverse floatation technology in the countercurrent bubble contact flotation column was conducted. The conditional tests of the pharmaceutical system and the flotation column operating parameters were done. The results show that the iron concentrate with the grade of 70.06% and iron ...

Reverse magnesite flotation - ScienceDirect

Jan 01, 2001· * Presented at Flotation 2000, Adelaide, Australia, March 2000 107 108 A.N. Santana and A. E. C. Peres The objective of this investigation, Santana (1995), is the development, at bench scale, of a reverse cationic flotation process for the magnesite ore from Brazil, yielding a concentrate with SiO2 content _< 0.20% (current figure 0.30%) at a ...

Flotation in a magnetic field and preparation of magnetite ...

The method of reverse flotation, based on floculation of magnetite in a magnetic field, with initial magnetite concentrates from magnetic separation being crushed to 30–80% of <0.074 mm size, can yield concentrates with 70–71.8% Fe and high Fe recovery.

A New Approach for Reverse Flotation of Magnesite From ...

The separation of magnesite from dolomite was achieved in a reverse flotation which resulted in a 76.1 per cent yield of magnesite with a grade of 47.3 per cent at 100 ppm dodecyl phosphate and 75 ppm sodium silicate. The flotation mechanism was investigated by characterising surface electrical properties and measuring the adsorption density of ...

Iron ore beneficiation technology, reverse flotation ...

There are two types of reverse flotation technology for iron ore, one is anionic collector reverse flotation method, the other is cationic collector reverse flotation method. The specific contents of the two reverse flotation methods are as follows: ... (2)Ore containing hematite and magnetite, because magnetite is not easy to float, the ...

The use of collectors mixture in the reverse cationic ...

Jan 01, 2010· The paper describes effective reagent combinations for removal of silicates by reverse cationic flotation from magnetic concentrate in magnetite ores processing. This work is based on a hypothesis that a further development in reverse cationic flotation of iron ores implies, a more detailed consideration of the nature of the Fe-bearing gangue ...

The importance of mechanical scrubbing in magnetite ...

Dec 01, 2014· Getting magnetite concentrate with extremely high Fe grade using reverse flotation method has become increasingly important due to the enhanced requirement of iron making industry. The coagulation in magnetite-concentrate flotation system may impose negative effect on flotation …

Reverse flotation of ultrafine magnetic concentrate by ...

Reverse anionic flotation of magnetite is conducted at a higher pH value (pH 11–12) than reverse cationic flotation (pH 10–10.5). Since the point of zero charge (PZC) of pure magnetite is around pH 6.5, the surface charge of magnetite in reverse cationic flotation (pH 10–10.5) would be less negatively charged than that at pH 11-12 (Li et ...

Reverse Flotation | SURFI

Jul 19, 2019· In this work, fine magnetite was used as a magnetic seed to enhance the separation efficiency of fine hematite from quartz during reverse micro-flotation. Gradual increases in hematite recovery and iron grade were accomplished with increasing magnetite content, whereas the iron content in quartz reject decreased.

US10722904B2 - Process to treat magnetite ore and ...

The present invention relates to a collector composition containing 80 to 100 wt % of at least one alkylethermonoamine, less than 20 wt % alkyletherdiamine, all wt % based on total weight of all amine components, and wherein the alkylethermonoamine contains between 60 and 93% isotridecyl(C13)etherpropylamine, 5 and 30% of isododecyl(C12)etherpropylamine, 0 and 10% of …

Iron Processing | Equipment, Process Flow, Cases - JXSC ...

It includes "weak magnetic separation – anion reverse flotation process" and "weak magnetic separation – high gradient magnetic separation – anion reverse flotation process". The former mainly selects magnetite ore, and the latter is mainly used for sorting hematite, mixed iron ore and weak magnetic ore.

REMOVING IRON IMPURITIES FROM MAGNESITE ORE BY ...

reverse flotation, the positive flotation is used to process the magnesite ore for most magnesite ores containing quartz/silicate and carbonate gangue minerals [2,3]. Wang Qianqian et al. [1] removed the Fe by different combinations of reserve flotation and high-intensity magnesite, and …


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