The magnetic results of mixtures reveal that it is very difficult to identify hematite magnetic signals by means of hysteresis loops, FORCs, or thermal demagnetization when even a small amount of magnetite (>5 wt%) is present due to magnetite's high specific magnetization.

The classic reference on magnetic separation was published by Oberteuffer (1974) which describes the physics of magnetic separation, effects of particle size, the various forces acting on particles in magnetic fields and major types of …

In this paper, magnetization roasting - low-intensity magnetic separation was performed on a pre-concentration concentrate obtained from an Australian hematite containing titanium and vanadium to realize the separation of titanium and vanadium.

Rare earth roll magnetic separators (RERMS) and induced roll magnetic separators (IRMS) are the simple and efficient dry high-intensity magnetic separators used for upgrading different paramagnetic minerals. These are the most popularly adopted units for separation of mineral sands, but its application for processing of other minerals is …

As a result of magnetic separation, mainly high-grade and run-of-mine intergrowths of magnetite with hematite and quartz are extracted into the magnetite concentrate, which will lead to an increased content of silicon in the concentrate.

Learn how to use magnetic separation to isolate monazite, a rare earth mineral, from mixed minerals in this PDF article on ResearchGate.

The separation efficiency of induced roll magnetic separator (IRMS), which is widely used for the concentration of para-magnetic minerals, depends on several parameters pertaining to design, process as well as materials.

The principal objective of the present study is to understand the role of various process variables of dry high intensity induced magnetic roll separator, and …

High-intensity magnetic or roasting-magnetic separation processes and flotation are commonly used to enrich hematite ore. However, the main drawbacks of these methods are their low separation …

Wet magnetic separation methods for the recovery of hematite and chromite fines and ultrafines were investigated. These methods included wet high-intensity and high-gradient magnetic separation, carrier or "piggy-back" magnetic separation, magnetic field-induced aggregation and magnetic seeding. This investigation indicated …

Magnetic separation of weakly magnetic iron mineral fines in the form of flocs, which is termed Floc Magnetic Separation (FMS) process, has been studied in the present work, in order to find a ...

The separation of iron oxide from banded hematite jasper (BHJ) assaying 47.8% Fe, 25.6% SiO 2 and 2.30%Al 2 O 3 using selective magnetic coating was studied. Characterization studies of the low grade ore indicate that besides hematite and goethite, jasper, a microcrystalline form of quartzite, is the major impurity associated with this ore. …

In this study, the ore's amenability by wet high-intensity magnetic separation followed by the reverse flotation of a magnetic concentrate route is investigated on BHQ samples of the Sandur ...

The roasted and ground samples underwent a wet low-intensity magnetic separation to confirm the magnetization process of hematite phases. An efective method …

The magnetic properties and the magnetic separation behavior of ilmenite, hematite and a rutile sample (LR Rutile) produced from Athabasca oil sands tailings were studied and the following conclusions can be drawn: 1. Oxidation roasting increased the magnetic susceptibility of ilmenite within the temperature range of 500–1000 °C.

Fe–P separation and the behaviors of Fe and P in separation process of high-phosphorus oolitic hematite ore from western Hubei province in China were studied. Various parameters, including reducing...

The magnetic properties of these minerals were measured. The effect of particle size and magnetic susceptibility on wet high intensity magnetic separation was studied simultaneously.

Magnetic separation studies were carried out by using high intensity induced roll magnetic separator by varying the main process parameters viz. magnetic …

The most ferromagnetic iron compound is magnetite although hematite and siderite can be separated by magnetic separation after phase transformation into magnetite by reduction roasting. The magnetic separator divides the samples into two products, magnetic and non-magnetic.

Particle size analysis, sedimentation tests, and scanning electron microscopy analysis of hematite from the separation process confirmed aggregation of hematite with magnetite particles. The measurements of magnetic susceptibility of product and reject indicate predominant aggregation of magnetite with hematite, and only marginal with …

To efficiently utilize high-phosphorus oolitic hematiteOolitic hematite, phosphorus should be separated from iron, thus a process of direct reductionDirect reduction and magnetic separationMagnetic separation was proposed. The physicochemical properties of oolitic...

Pulsating high-gradient magnetic separation (PHGMS) of fine hematite from tailings was studied using a pilot PHGMS separator to investigate the possibility of its application in industry.

A study was therefore carried out to examine the magnetic susceptibilities and magnetic separation behaviors of some Fe-bearing minerals commonly found in the oil sands tailings, under both the oxidation and reduction roasting conditions.

The experimental results show that the recovery of fine hematite is improved in the presence of CMS in the high-intensity magnetic separation (HIMS) with sufficient kinetic energy input and appropriate pulp pH value.

The advent of rare-earth permanent magnets has resulted in construction of magnetic roll separators that generate magnetic forces exceeding those produced by electromagnetic high-intensity separators.

Magnetic separation of weakly magnetic iron mineral fines in the form of flocs, which is termed Floc Magnetic Separation (FMS) process, has been studied in the …

The reduction behavior of low-grade lump hematite ore ( 20–50 mm) has been evaluated by performing a series of coal-based direct reduction roasting tests followed by magnetic separation under different process conditions such as roasting time, temperature, reductant type and dosage, and grinding stage. To investigate …

In this study, the effect of molecular structure and dosage of the reagents, pulp pH and stirring intensity on the flocculation performance and magnetic separation behavior of ultrafine specular hematite ore were studied by optical microscope observations along with image analysis and floc-magnetic separation experiments, respectively.

Semantic Scholar extracted view of "Magnetic separation of hematite and limonite fines as hydrophobic flocs from iron ores" by Shaoxian Song et al.

Pulsating high-gradient magnetic separation (PHGMS) of fine hematite from tailings was studied using a pilot PHGMS separator to investigate the possibility of its application in industry. The results of this investigation indicate that PHGMS is effective for recovering fine hematite from the tailings and greatly improved the separation …