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high intensity magnetic separation studies of low grade chromite ore

Mar 23, 2016 · Also, effect of desliming of the low grade deposit prior to the dry magnetic separation is highlighted. Particle size distribution of Sukinda chromite ores. XRD pattern of chromite ores

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(pdf) improving grade of indian chromite ores by high

The results of these investigations indicated that the chromium–to–iron ratio could be improved from 1.85 to 3.0 with around 10% to 30% recoveries by high–intensity magnetic separation of the

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evaluation of chromite recovery from shaking table

Bhatti, M.A., Kazmi, K.R. and Anwar, M.S. (2008) High Intensity Magnetic Separation Studies of Low Grade Chromium Ore. Journal—Chemical Society of Pakistan, 30, 42. [ 16 ] Zhou, M.-F., et al. (2014) Compositions of Chromite, Associated Minerals, and Parental Magmas of Podiform Chromite Deposits: The Role of Slab Contamination of Asthenospheric Melts in Suprasubduction Zone Environments

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(pdf) magnetic separation studies on ferruginous chromite

Mar 01, 2015 · In case of SS slag and low carbon (LC) FeCr slag a wet high intensity magnetic separation can up-concentrate Cr in the SS slag (fraction <150 µm) from 2.3 wt.% to almost 9 wt.% with a yield of 7

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processing of low-grade chromite ore for ferroalloy

Jul 14, 2020 · Mineralogical investigation indicates the presence of chromite and quartz as major minerals with minor fuchsite and kaolinite. The beneficiation studies reveal that the product can be enriched to a Cr/Fe ratio of 3.35 and 3.02 by gravity concentration (wet shaking table) and wet high intensity magnetic separation, respectively

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magnetic separation studies on ferruginous chromite fine

Mar 04, 2015 · The fine chromite was observed to be upgraded to a Cr:Fe ratio of 2.2 with a yield of 55.7% through the use of an induced roll magnetic separator and a feed material with a Cr:Fe ratio of 1.6. The Cr:Fe ratio (chromium-to-iron mass ratio) of chromite affects the production of chrome-based ferroalloys. Although the literature contains numerous rep. Magnetic separation studies on ferruginous chromite …

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analysis of wet high-intensity magnetic separation of low

Aug 12, 2014 · Investigations carried out on a wet high-intensity magnetic separator using a low-grade iron ore sample containing 49.27% Fe shows that it is possible to upgrade to 62% Fe in the concentrate with poor yield values

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magnetic separation studies for a low grade siliceous iron

Jan 01, 2013 · This present paper discusses both the dry and wet magnetic separation techniques used for processing of a low grade siliceous iron ore sample. 2. Materials and methods. About 500 kg of a low grade siliceous iron ore sample was crushed to below 10 mm size by using jaw crusher. The crushed sample was thoroughly mixed and subjected for sampling by coning and quartering technique to …

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thermally assisted magnetic separation and

Mar 15, 2019 · A very recent study of a goethite rich ore having 56.67% Fe, which did not respond to wet high intensity magnetic separation (WHIMS), could be upgraded to 63.89% Fe by exposing it to a temperature of 500 °C for a period of 60 min [ 18 ]. This was clearly because of the high Loss on Ignition (LOI) content of 14.4% present in the ore

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separation analysis of dry high intensity induced roll

Sep 01, 2014 · A dry induced roll magnetic separator is simple and efficient for upgrading the magnetic mineral and materials. Weak paramagnetic minerals can be effectively removed from an ore by maintaining the field intensity up to ~ 2.5 T , .IRMS as shown in the Fig. 1 consists of a horse-shoe magnet faced by an iron bridge bar and of two rolls, one opposite each pole

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improving the quality of ferruginous chromite concentrates

Further, the two-stage separation was adopted to discard hematite and goethite at a lower magnetic field intensity of 0.4 T and iron-bearing silicates at 1.2 T. The two-stage separation for such low-grade ferruginous chromite ore is well reported in the literature . The results of the two-stage separation are found to be insignificant as there is an incremental change in the grade, but the recovery decreases …

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minerals | free full-text | up-concentration of chromium

In case of SS slag and low carbon (LC) FeCr slag a wet high intensity magnetic separation can up-concentrate Cr in the SS slag (fraction <150 µm) from 2.3 wt.% to almost 9 wt.% with a yield of 7 wt.%, and in the LC FeCr slag from 3.1 wt.% to 11 wt.% with a yield of 3 wt.%

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investigation of efficiency of magnetic separation methods

Apr 01, 2019 · In this research, the efficiency of magnetic separation methods for processing of a low-grade iron pigments ore (red ochre) has been studied. Based on the mineralogical analyses (XRD), thin section and polish studies, the reserve is an iron sedimentary deposit with an average Fe grade of %31.3. The most valuable minerals are Hematite and Goethite and main gangue minerals are Calcite and Quartz

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wet high intensity magnetic separation

Jun 04, 2017 · WHIM is the short acronym for Wet High Intensity Magnetic Separation.. At present, most U.S. iron raw materials are produced from magnetic taconites, which are ground to a nominal minus 270 mesh (53 micrometers), beneficiated by wet low-intensity magnetic separation, and pelletized

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high intesity gradient magnet iron ore beneficiation

A Longi LGS 500 wet high intensity magnetic separator WHIMS was used to concentrate a fine, low ... used for the beneficiation of low grade hematite ore 12 . ... 3 Dahe X, Liu S, Chen J. New technology of pulsating high gradient magnetic

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electromagnetic separation of copper iron sulphides

Most varieties of garnet, sp. gr. 3.1 to 4.3, are sufficiently magnetic to be capable of separation in high-intensity magnetic fields. Garnet is separated as a magnetic product at Franklin Furnace, N. J., and at Broken Hill, N. S. W. It has been proposed to remove garnet magnetically from garnetiferous schists for use as an abrasive

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how to process chrome ore with mining equipment? - jxsc

The selection of chrome ore mining equipment is closely related to the physical and chemical properties of chromium ore. Because chromite is weakly magnetic, with the continuous improvement of high intensity magnetic separation technology, the technology of purifying chromium ore with high intensity magnetic separation has been very mature

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sunil tripathy | postdoctorate fellow | phd (mineral

The article presents the reduction roasting followed by low intensity magnetic separation studies of a low grade Mn ore assaying 27.7% Mn and 26.1% Fe in order to obtain a Mn rich non-magnetic

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improvement in cr:fe ratio of indian chromite ore for

Jan 03, 2012 · Beneficiation studies revealed that, the product can be enriched to having Cr: Fe ratio of 2.31 with a grade of 48.9% Cr 2 O 3 by gravity concentration (wet shaking table) whereas Cr:Fe ratio of 3.35 with 52.3% Cr 2 O 3 can be achievable by using high intensity magnetic separation (IRMS). So the high intensity magnetic separator (Induced Roll Magnetic Separator) can be used improve the quality …

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