Experiments were carried out using a series of spiral concentrators, magnetic separators, electrostatic separators, and flotation to recover the monazite mineral as a by-product of ilmenite, sillimanite, and garnet.
Monazite (REPO 4), a RE phosphate, is one of the primary sources of light REE (Kamitani, 1991). The most significant sources of this mineral are heavy mineral sands (Gupta and Krishnamurthy, 1992). Monazite is usually beneficiated from heavy mineral sands using gravity, magnetic and electrostatic separation (Bulatovic, 2010).
If monazite is chemically processed, the purity of monazite concentrate is upgraded to ∼98% using magnetic separation, otherwise the purity stream may be as …
Moumar Dieye et al. [21] separately used magnetic separation and gravity separation, to separate monazite from the rough zircon concentrate in Senegal. It was found that the recoveries of …
Magnetic Separation 2.1 Introduction The differences in magnetic susceptibility can be utilized to separate a valuable mineral from its gangue through the magnetic separation method. Similar to other materials, minerals are generally classified into three main categories, namely diamagnetic, paramagnetic, and ferromagnetic.
Download scientific diagram | Monazite recovery against hematite recovery for differing model mixtures. from publication: Magnetic separation of monazite from mixed minerals | Magnetic separation ...
Monazite concentrate obtained are processed under different condition of time, temperature and concentration using acidic or alkaline solution. ... electrostatic or magnetic separation processes have been used for the recuperation of monazite concentrate from fine heavy mineral beach sand deposits where standard gravity …
The study aims to collect detailed information on the chemical composition, crystal phases, and microstructure of the mineral monazite concentrate that would aid to optimize the subsequent hydrometallurgical processes for high-efficient separation of thorium and other associated rare earth elements.
Using a magnetic separation method at various magnetic intensities, paramagnetic minerals, ilmenite (0.8 T magnetic product), and monazite/xenotime (1.0–1.4 T magnetic product) were recovered ...
Further, non-magnetic zircon is separated from the magnetic monazite. If monazite is chemically processed, the purity of monazite concentrate is upgraded to ∼98% using magnetic separation, otherwise the purity stream may be as low as 30%.
The concentrate assays 97% monazite, which has been produced using a combination of gravity, electrostatic, and magnetic separation units. The feed material also contains ilmenite, zircon, rutile, and some silicate-bearing minerals.
A wet high intensity magnetic separator (WHIMS) was used in stage-wise concentrate-tails separation tests at selected magnetic field intensities (0.11-1.08 T) for model …
Monazite is further separated from other heavy minerals by a series of magnetic and electrostatic separation processes. However, these physical methods of separation become less efficient when the size of the liberated particle gets smaller.
Low-intensity magnetic separation (LIMS) tailings are a common by-product obtained after magnetite magnetic separation, containing hematite and the rare earth minerals monazite and bastnaesite. Due to the weak magnetism of hematite and rare earth minerals, magnetic separation has low efficiency.
Magnetic separation of monazite from mixed minerals George B. Abaka-Wood 1 *, Jonas Addai-Mensah 1,2 and William Skinner 1 1 Future Industries Institute, University of South Australia, Mawson ...
Magnetic Separation of Monazite and Xenotime p.279. Recovery of Rare Earth Minerals, with Emphasis on Flotation Process p.301. The MMAJ Rare Earth R&D Project p.325. New Developments in the Processing of Rare Earths p.337. The Study on the Preparation and Reaction Kinetics of Iron Oxide Powder from Spent Pickling Solution ...
Magnetic separation is one of the key physical separation techniques utilised in the beneficiation of rare earth elements (REE) minerals. This technique generally aims at splitting highly magnetic (ferromagnetic) minerals from the less magnetic (paramagnetic) and non-magnetic (diamagnetic) minerals by applying differing magnetic field intensity. …
This paper reviews rare earth minerals (monazite and xenotime) separation by flotation. A wide range of monazite and xenotime flotation test results are summarized including: reasons of variation in the point of zero charges on these minerals, the effects of various flotation conditions on zeta potential of monazite and xenotime, …
The elemental analysis of the RYF samples from the second magnetic separation showed that the non-magnetic fraction contains predominantly species related to zirconite and monazite, containing higher concentrations of Zr and Si, and enrichment of the concentrations of P, Ce, Nd, Th, and Y (Table 2), probably associated with the …
The high grade monazite concentrate obtained from the tabled top-strip fraction is processed as follows. Using the high-intensity magnetic separation, most of the monazite and associated opaque minerals, in addition to minor of magnetic zircon, is obtained in the magnetic fraction.
A wet high intensity magnetic separator (WHIMS) was used in stage-wise concentrate-tails separation tests at selected magnetic field intensities (0.11–1.08 T) for model mineral mixtures of...
Monazite is a rare earth phosphate mineral that contains various amounts of thorium. Originally, monazite was the primary source of rare earth elements as …
This paper reviews rare earth minerals (monazite and xenotime) separation by flotation. A wide range of monazite and xenotime flotation test results are summarized including: reasons of variation ...
The results of the pre-concentration studies reveal that by using multi-stage spiral concentrators, the Total Heavy Minerals [THM] have been upgraded to 97.8% with …
The differences in magnetic susceptibility can be utilized to separate a valuable mineral from its gangue through the magnetic separation method. Similar to other materials, minerals are generally classified into three …
Discover the potential of gravity, magnetic, and electrostatic separation methods in obtaining titanium oxide and zircon concentrates from Senegal's heavy mineral sands. Learn how monazite, a paramagnetic mineral, can be efficiently recovered using magnetic and gravity separation techniques, resulting in three valuable concentrates.
In the context of RE mineral beneficiation, magnetic separation is typically used for two purposes: low intensity magnetic separation is used to remove ferromagnetic gangue minerals such as iron oxides and high intensity magnetic separation is used to separate monazite and xenotime from other heavy minerals (Gupta and Krishnamurthy, …
Wet gravity separation was used initially to discard low specific gravity gangue and then low intensity magnetic separation to discard any ferromagnetic minerals without removing paramagnetic monazite. A chain of gravity, magnetic and electrostatic separations were further applied where rutile was removed after electrostatic separation followed ...
The decomposition of monazite at temperatures ranging from 140 to 200 °C as processed in Brazil includes the following sequence of operations: magnetic field separation, milling, alkaline treatment, trisodium phosphate filtration, and Th-U cake filtration (Ney et al., 1992).
Using a magnetic separation result, the beneficiation process was conducted with additional gravity separation for zircon to produce a valuable mineral concentrate. The process resulted in three...