Recovery of valuable elements from pyrite pyrolysis slag using magnetic …
Secondly, the magnetic separation condition test shows that the lead and zinc content can be reduced to 0.32 % and 0.17 %, CRediT authorship contribution statement. Runqing ... and after SMR-magnetic separation, magnetic concentrate with an iron grade of 63.24% and an iron recovery of 95.05% could be achieved under …
Arsenopyrite removal from pyrite concentrate using …
Pulsating high gradient magnetic separation (PHGMS) was innovatively used to upgrade an unqualified pyrite concentrate with arsenic content reaching as high as 3.49%. The effects of five key operating parameters, i.e., feed weight, matrix, magnetic induction, pulsating frequency and grinding fineness, on the pilot-scale PHGMS …
Preparation of reduced iron powder for powder
The effect of reduction temperature (from 1050 to 1250 °C) on the magnetite concentrate during the reduction roasting–magnetic separation process is shown in Fig. 6. As shown in the figure, the content and recovery rate of iron increased from 94.59% to 98.46%, and from 79.75% to 91.46%, respectively, as the reduction temperature was ...
Separation of Iron and Rare Earths from …
The XRD patterns of magnetic separation concentrate show that the main mineral phases in concentrate are magnetite (Fe 3 O 4) and fluorite (CaF 2), which can be removed by grinding and reverse …
Effect of microwave heating on magnetic separation of …
Different size fractions of pyrite were treated (heated) in a microwave oven at 2.45 GHz frequency and different power levels. The microwave treated pyrite samples of −420 μm fraction were subjected to magnetic separation at magnetic field intensities of 0.1, 0.3 and 0.5 T. It was found that pyrite was converted to such ferromagnetic ...
Beneficiation of South African chromite tailings using …
to magnetic separation, as the technology is dependent on the fineness of the material. As a result, it is expected that enriching of the chromite by magnetic separation will yield favourable results. The chromite content in the courser fraction is much lower at an average of 12.79%. This is typical tailing which will be uneconomical to enrich ...
Superconducting High-Gradient Magnetic Separation
Similarly, the superconducting magnetic separator was performed to separate a Cu-Mo bulk flotation concentrate, and produced Cu concentrate assaying …
Recovery of Titania Slag and Iron from Semi-molten State
The electric arc furnace (EAF) smelting ilmenite concentrate process which produces titania slag, is high energy consumption, high pollution, and low efficiency process. An economical and clean process for semi-molten reduction followed by magnetic separation to produce titania slag from Panzhihua ilmenite concentrate is proposed. In …
Magnetic Separation | SpringerLink
Magnetic separation is the mineral separation method to separate different minerals by magnetic differences. Basic Principle. Based on the level of magnetism, …
Separations | Free Full-Text | Separation of Ilmenite …
The results show that a concentrate with a TiO 2 grade of 9.90% can be separated via weak magnetic separation and coarse particle tailing dumping. The concentrate grade is then increased to 14.32% via strong …
Magnetic Separation
6.3.3 Magnetic separation. ... As the drum moves up the concentrate is compressed, dewatered and discharged leaving the gangue in the tailing compartment. The drum rotation can be clockwise or counterclockwise and the collection of concentrate is designed accordingly. Drum separator produces extremely clean magnetic concentrate.
Study on the Grinding Kinetics and Magnetic …
In recent years, a low-grade vanadiferous titanomagnetite concentrate (LVTC) produced in the northwest area of Liaoning has attracted more and more attention. However, it is difficult to recover and …
Biodegradable ether amines for reverse cationic flotation separation …
Liu, A. et al. Effect of electroflotation on quartz and magnetite and its utilization on the reverse flotation of magnetic separation concentrate. Miner. Eng. 175, 107292 (2022).
Effect of electroflotation on quartz and magnetite and its …
The pure magnetite with 71.65% Fe was obtained from TISCO Jianshan iron ore processing plant (Shanxi Province, PR China). The real ore sample was a wet magnetic separation concentrate of the primary iron ore concentration containing 64.46% Fe and 8.41% SiO 2 from Taiyuan Gujiao. The iron ore sample was analyzed by using a …
Sustainable processing of gold cyanide tailings
In the stage of magnetic separation, the iron grade of the magnetic separation concentrate and the iron recovery in the gold extraction tailings were 60.9% and 74.6%, respectively. The composition of magnetic separation concentrate was determined according to the national standard of iron ore concentrate ( GB/T 36704 …
Recovery of Fe and V via selective reduction–magnetic separation …
With the aim of separating Fe and V, a vanadium-titanium magnetite concentrate was selectively reduced, followed by magnetic separation. The processes accompanying reduction of the vanadium-titanium magnetite concentrate were investigated using thermodynamic simulation, experiments, scanning electron microscopy, and …
Production of Spodumene Concentrate from the North …
Table 3 highlights the benefits of magnetic separation on the coarse DMS concentrate. Lithium losses were relatively low, between 1.3% and 2.5%, with good Fe 2 O 3 and mass rejection. A significant amount of mass was rejected from COMP B and C which largely contributed to the upgrading of Li 2 O in the final non-magnetic DMS concentrate.
Materials | Free Full-Text | Arsenic Removal and Iron …
The particle size of the primary magnetic separation concentrate from wet milling is obtained by sieving. A Bruker D8 Advance X-ray diffraction spectroscopy (D8ADVANCE, Bruker, Mannheim, Germany) with Cu Kα radiation was used to determine the mineral phase composition of the raw sample, the roasted sample, and the final …
Magnetic Separation Column | SpringerLink
Magnetic separation column is a type of magnetic separation equipment, in which the separation column with externally applied electromagnetic field is used to separate materials under the combined action of magnetic force and gravity. ... and are drained from the concentrate discharge port to become a high-grade iron concentrate. ...
Individual enrichment of manganese and iron from
When the external magnetic field strength was 300 kA/m, the unit mass magnetic moment of the four materials of raw ore, roasted ore, magnetic separation concentrate, and magnetic separation tailings reached the balance values of 1.05, 53.35, 79.60, and 1.98A·m 2 /kg, respectively. The unit mass magnetic moment of the …
Effect of reverse flotation on magnetic separation …
Further milling of the ore to <25 µm resulted in a higher magnetic-rich product after magnetic separation. Reverse flotation tests were conducted on the agitated magnetic concentrate feed, and the result shows a significant upgrade of Fe compared to that obtained from the non-agitated feed.
A New Technique for Preparation of High-Grade Titanium …
Accordingly, the TTM samples were treated by reduction roasting with 4% CaF2 and 25% coal at 1200°C for 60 min followed by magnetic separation. A magnetic concentrate with an iron content of 91.1 ...
Magnetic separation for recovering iron resources from …
The grinding-magnetic separation results of reduced briquettes show that concentrate containing 3.25 % Ni, 1.20 % Cu and 75.26 % Fe is obtained and selective enrichment is achieved with a recovery of 82.20 %, 80.00 % for nickel and copper respectively, while the recovery of iron is only 42.17 %.
Separation of Iron and Rare Earths from …
The XRD patterns of magnetic separation concentrate show that the main mineral phases in concentrate are magnetite (Fe 3 O 4) and fluorite (CaF 2 ), which can be removed by grinding and reverse …
Physical Concentration of Heavy Minerals: A Brief Review on …
These concentrators require higher magnetic flux densities up to 20,000 gauss (~ 2 tesla) in order to concentrate certain weakly magnetic ... W.J. Bronkala, Magnetic Separation (Ullman's Encyclopedia of Industrial Chemistry (Wiley-VCH Verlag and Co. KGaA, New Jersey, 2000).
Study on selective reduction and magnetic separation of …
The reduced ore was then upgraded by magnetic separation, 75 per cent of the total mass being rejected as tailings, and a high grade nickel concentrate, assaying 5.1 per cent Ni and 82.66 per cent ...
Magnetic Concentrate
Column magnetic separator is developed on the principle of magnetic agglomeration of strongly magnetic minerals such as magnetite in a low-intensity magnetic field, and …
Separation of Iron and Rare Earths from Low‐Intensity Magnetic …
The XRD patterns of magnetic separation concentrate show that the main mineral phases in concentrate are magnetite (Fe 3 O 4) and fluorite (CaF 2), which can be removed by grinding and reverse flotation fluorite to obtain a high-grade iron concentrate. The REO grade of magnetic separation tailings is 11.98 %, and its recovery rate is …
Effects of embedding direct reduction followed by magnetic separation
Embedding direct reduction followed by magnetic separation was conducted to fully recover iron and titanium separately from beach titanomagnetite (TTM). ... as molar ratio of C to Fe, reduction time, and reduction temperature, were studied. The results showed that the TTM concentrate was reduced to iron and iron-titanium oxides, …
Extraction of ferronickel concentrate from laterite nickel ore …
Under the action of waste cathode carbon and CaO, ferronickel concentrate was prepared by reduction roasting–magnetic separation for laterite nickel ore. Table 4 provides a chemical analysis of the ferronickel concentrate results under the conditions of 14 wt% spent cathode carbon, 6 wt% CaO, 1250 °C reduction temperature, 75 min …
