3.1 Chrome magnetic separation process The chrome raw ore is a flotation tail ore, which is mainly formed in the chromite, and the chromite is the target recovering mineral. The dissociation degree of ferrochromium ore is low, and it has a weak magnetic property. First of all, magnetic separation processing to separate chromite.Get A Quote
2.Structure of ore magnetic separator CTB series wet drum permanent magnetic separator consists of magnetic drum, tank body, support, feed box, discharge box ore concentrate box, drive motor, motor reducer, control box, etc.The magnetic drum is made of stainless steel thickness 3mm and covered with wear resistant rubber.
The magnetic system of magnetic separator integrates good-quality iron-oxide body materials with rare earth magnetic steel the average magnetic induction intensity of cylinder surface is 100-600mT. According to the needs of customers, the magnetic separator can be co-current, half-countercurrent, countercurrent, and so on. The magnetic separator has the advantages of simple structure, big processing volume, convenient operation and easy maintenance, etc.
In the first separation step I silica sand is separated by a high power magnetic drum from the magnetic particles. The silica sand can be reused directly in the sand circuit. The magnetic particles pass through the next three steps II IV of the plant, where the chromite sand is repurified.
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Wet high-gradient magnetic separation is usually thought to be the most promising method for improved performance. Chromite ore can be separated in a high-strength field, despite the presence of iron impurities. The choice of method depends on several factors, primarily the type of the gangue.
The chromite product containing chromite, fused silicachromite passes to the fluidised density separator. This material is automatically discharged onto a third electromagnetic feeder, in order to ensure the product remains evenly spread. Discharge via a chute is onto the fluidised separator.
Jun 29, 2020nbsp018332So far, dry magnetic separators have developed many different applications for mineral and coal processing, for induction roller magnetic separators for.
Minprotech established the first Wet High Intensity Magnetic Separation WHIMS plant for chromite recovery in South Africa. Minprotech is the market leader utiliing WHIMS technology to extract chromite from UG2 and LG reefs. Our first full production plant was built and operated by us for a major chrome producer on the Eastern Chrome Mines.
The CrFe ratio chromium-to-iron mass ratio of chromite affects the production of chrome-based ferroalloys. Although the literature contains numerous reports related to the magnetic separation of different minerals, limited work concerning the application of magnetic separation to fine chromite from the Sukinda region of India to enhance its CrFe ratio has been reported.
Magnetic Separation Of Chromite. Two magnetic samples collected at 5 m and 52 m from the top of a weathering were submitted to magnetic separation with a hand magnet in the laboratory revealed that NaOH selectively removed silicates and chromite from samples. Online Chat High Gradient Magnetic Separators Outstanding.
Wet High Intensity Magnetic Separator WHIMS The WHIMS range includes 4 16 24 and 48 pole machines with either 68 or 120 millimetre separation matrix widths WHIMS separators are suitable for applications requiring higher magnetic field gradients to remove weakly magnetic particles from nonmagnetic concentrates Nominal capacities range from 6 to 150 tonnes per hour.
Whims magnetic separator chromite mooigeichtnl Magnetic separation studies on ferruginous chromite Magnetic separation of chromite Most of the available literature on magnetic separators treated in a wet highintensity magnetic separator WHIMS.
WET HIGH INTENSITY MAGNETIC SEPARATOR fiWHIMSfl When a DC current is applied to the coil 1 a magnetic field is formed in the separating compartment 2 A high magnetic field gradient is generated in the vicinity of the rod in matrix 2 The vertical rotating separation ring 3 is driven clockwise by the drive motor and reducer 4.
Outotec Vertically Pulsating Highgradient Magnetic Separator Effectively process fine weaklymagnetic minerals with the Outotec SLon Vertically Pulsating Highgradient Magnetic Separator VPHGMS The unit is a wet highintensity magnetic separator that uses a combination of magnetic force pulsating fluid and gravity to process minerals.
Iron Ore Magnetic Roller Separator In South Africa Marco. We have iron ore magnetic roller separator in south africadesliming iron ore and chromite finesslimes hydrate classification and spent liquor recovery in alumina refineries degriting of china clay dewatering of beach sands tega 10 hydrocyclones are available in single units and for larger flow rates cyclones are supplied in radials.
5. Use jig machine for gravity separation for the extraction of chromite ore, tailings go into the magnetic separator for sweep selection. Magnetic separation process is designed to recycle intergrowth chromite ore that can not be recycled by jig machine 6. The Chromite concentrates get by magnetic recovery are further grinded in the grinding.
Chromite Separation Case Study by Omega Foundry Machinery Know More. 29 Aug 2013 Chromite sand is para-magnetic, that is it is only slightly magnetic and cannot be of drum magnet separators and a fluidised density separator. Chromite dumping has been virtually eliminated and new chromite purchasing has been drastically reduced as well.
Wet High Intensity Magnetic Separator Factory Company. Longi magnet co ltd your most competitive supplier of industrical magnetic equipment longi magnet co ltd was founded in 1993 and quickly became the leading manufacturer of industrial magnetic equipment throughout asia having a large product range including lifting magnets whims lims eddy current separators metal detectors drum separators.
The reduction of chromite ores with alkali eliminates the risk of carcinogenic Cr6- ion production during the extraction of chroimum oxide and Fe-Cr-alloy. The alumina is also extracted as a by-product of the process.The CO generated in the process is partly utilied for energy generation by combustion via CO0.5O2 CO2 reaction. Less than 10 of CO2 may be sequestrated for alumina recovery.There is no solid and water waste in the process which contains carcinogenic Cr6- ions.
The reduction of chromite ores with alkali eliminates the risk of carcinogenic Cr6- ion production during the extraction of chroimum oxide and Fe-Cr-alloy. The alumina is also extracted as a by-product of the process.
A novel reduction reaction for extracting Cr 2 O 3 from chromite ores is demonstrated by excluding the formation of carcinogenic chromate Cr 6 intermediates.We have investigated in detail the underpinning high-temperature reduction reaction FeCr 2 O 4 Na 2 CO 3 2CFeNa 2 Cr 2 O 4 3CO g, which defines the process chemistry for the formation of sodium chromite Na 2 CrO 2 as an.
The process chemistry demonstrates the extraction of 7580 pure Cr2O3 from NaCrO2 by leaching with 0.050.5 M dilute H2SO4 in controlled pH conditions. The detailed chemical analysis of leachates after Cr2O3 extraction shows that the acid leachates with residual concentrations of 150 ppm Cr3-ions can be recycled in situ for reusing water, for eliminating the risk of Cr6-ion formation from atmospheric oxidation. The novel extraction route may be able to displace the current oxidative process for chromite ore processing by retrofitting.
For chromite recuperation from the circulating moulding sand there are applied the appropriate installations equipped with separate elements generating locally strong magnetic field. The knowledge of the current ratio of chromite and quart sand allows to optimie the settings of installation and control of the separation efficiency.
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