Purification ofilmenitefrom chromite impurities by a two stepmagnetic separationwhereinmagneticallysusceptible chromite ismagneticallyremoved, followed by an oxidizing roasting of theilmeniteand a subsequentmagnetic separationofilmenitefrom the remaining chromite impurities to obtain anilmenitewith 1% or less chromite.Get Price
ABSTRACT OF THE DISCLOSURE Purification ofilmenitefrom chromite impurities by a two stepmagnetic separationwherein magnetically susceptible chromite is magnetically removed, followed by an oxidizing roasting of theilmeniteand a subsequentmagnetic separationofilmenitefrom the remaining chromite impurities to obtain anilmenitewith 1% or less chromite.
The latter is then roasted at an elevated temperature in a hydrous atmosphere to convert theilmeniteto amagnetic material. Thereafter theilmenitemay then be subjected to amagnetic separationwherebynon-magnetic rutilemay be recovered while themagnetic portionis recycled for furtherseparation.
Jan 27, 1976· Purification ofilmenitefrom chromite impurities by a two stepmagnetic separationwhereinmagneticallysusceptible chromite ismagneticallyremoved, followed by an oxidizing roasting of theilmeniteand a subsequentmagnetic separationofilmenitefrom the remaining chromite impurities to obtain anilmenitewith 1% or less chromite.
A method to isolate the paramagnetic fractions of a sediment to beneficiate the platinum and platinum group element ores therein comprising a differentialmagneticfiltrationseparationprocess. US4543178A-Dual intensitymagnetic separationprocess for beneficiation of platinumore- GooglePatents
A method for processing vanadium titano-magnetite relates to a method for preparing iron powder andilmeniteconcentrate from vanadium titano-magnetite through fluidized bed roasting andmagnetic separation. The method is characterized by comprising the following steps in sequence: (1) crushing and grinding the raworeof vanadium titano-magnetite; (2) drying and pre-heating the powdery ...
Without the roasting treatment, only about 10% of theilmenitereported to themagnetic productat this lowmagnetic field intensity(themagnetic susceptibilityof theilmeniteis 2.18×10 −6 m 3 /kg). An increase in themagnetic susceptibilityresulted in a significant increase in the recovery.
Panzhihua ilmenite, located in Sichuan province of southwest China, is the largestilmenite reservein the world, with an estimated reserve of 870 million tons. This deposit accounts for more than 90% of the totaltitanium resourceof China and over 35% of the world.
Magnetic SeparationandIron OreBeneficiation.Magnetic separationis an old technique for the concentration ofiron oresand for the removal of tramp iron. Since 1849, a number ofpatentsonmagnetic separationhave been issued in USA, and texts of some of thepatentsbefore 1910 describe a variety ofmagnetic separatorsfor mineral processing.
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Sep 28, 1971· A feed slurry of water and 25 percentoresolids comprising 70 percentilmeniteand 30 percent silica as fed to shaking tables, 65 mesh +325 mesh, was fed through theseparator magneticfield at a velocity of 6.5 ft./sec. (42.2 g.p.m.).
A typically low-grade titanium sand was first ground and then processed by low-intensitymagnetic separation(LMS) and high gradientmagnetic separation(HGMS) to recover titanomagnetite andilmenite, respectively; as the TiO 2 grade of the sand is low, the primary treatment of the sandby magneticseparations is effective, with 78.45% by mass ...
ilmenite ore by magnetic separator patent. The use of conventionalmagnetic separatorsto remove ferromagnetic minerals is knownMagnetic separationis an important process that has been used in mineral dressing for many years Most metallic ores are crushed and the values are concentrated using flotation gravity settling electrostaticseparationor other special processes
Magnetic Separationand IronOreBeneficiation .Magnetic Separationand IronOreBeneficiation.Magnetic separationis an old technique for the concentration of iron ores and for the removal of tramp iron. Since 1849, a number ofpatentsonmagnetic separationhave been issued in USA, and texts of some of thepatentsbefore 1910 describe a ...
1. Introduction. High gradientmagnetic separation(HGMS) has been used in a variety of technical processes, such as for biochemicalseparationand pollutants purification (García et al., 2015, Hayashi et al., 2010, Hoffmann et al., 2002, Menzel et al., 2012).But, this method has gained the most applications in the field of mineral processing (Watson and Beharrell, 2006), and it is now ...
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Jan 07, 2010·Ilmenite, a natural mineral composed of FeTiO3, is a low-cost and promising oxygen carrier (OC) for solid fuels combustion in a chemical-looping combustion (CLC) system. The aim of this study is to analyze the behavior ofilmeniteas an OC in CLC and the changes in its properties through redox cycles. Experiments consisting of reduction−oxidation cycles in a thermogravimetric analyzer …
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Magnetic separationis an indispensable part ofmagnetic separation, and the drymagnetic separatorcan be selected under the condition of water shortage in China to ensure that our country can ...
Iron and rutileseparation. low cost wet rutile beneficiation for rutileore separation. AtoC the products formed wereilmenite, rutile, anatase and traces of hematite when reduced at differentProcesses for the production of beneficiatedilmenite. afterseparationfrom leach liquor was washed and . to metallic iron and thus a relatively low cost for thein wet.
When you needmagnetic separationthe Reading range ofmagnetic separatorshas a wide range of proven, cost effective products. Including wet high intensity, induced roll, rare earth roll, rare earth drum, low intensity and medium intensitymagnetic separatorsthe Reading range has amagneticsolution to fit your particular processing requirements.
Anoreof magnetite andilmenitemay, however, employ wetmagnetic separationto remove magnetite, and all flotation for recovery of theilmenitein a high grade product. In this case all the gravity circuit including the jigs and tables can be eliminated. This scheme is also applicable on a rutileorewith little or noilmenite.
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Jun 12, 1979· It is, therefore, readily apparent from the above examples that a more efficientseparationofmagnetic ilmenitefrom non-magneticrutile may be accomplished when the roasting of theoreis effected in a hydrous atmosphere, theilmenitebeing uneffected by magnetism when the same roast is effected in a dry or anhydrous atmosphere.