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chemical composition of chromite

Chromite - an overview | ScienceDirect Topics

Chromite production is mainly export-oriented. Turkey has one chrome and two ferrochrome chemical plants. A typical mineral composition of Turkish chromite ore is composed of Cr 2 O 3 (48.5%), Al 2 O 3 (10.01%), FeO (13.28%), MgO (18.83%), and CaO (9.38%) with a Cr:Fe ratio of 3:25 (Yalcin, 2003).

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Chromite: Mineral information, data and localities.

Chromite was named in 1845 by Wilhelm Haidinger in allusion to its composition. The species was originally named fer chromate alumine by Louis Nicolas Vauquelin in 1798. . Vauquelin was the discoverer of the element chrom

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Chromite Sand - Spinel - for the foundry industry | LKAB Minerals

Chromite Sand is a naturally occurring spinel consisting primarily of the oxides of chrome and iron. It is a by-product of ferro-chrome production and is mainly used in foundry applications and in glass production.

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Recycling Of Chromite Waste for Concrete: Full Factorial ...

The chemical composition before neutralization for chromite industry waste is given in Table 2. The total amount of SiO 2, Al 2 O 3 and Fe 2 O 3 was 61.75% which was lower than the minimum requirement (70%) specified by ASTM C 618 for pozzolanic material (ASTM C 618, 2001). Table 2. Chemical composition (wt %) of the chromite industry waste samples

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Chromite in the Platreef (Bushveld Complex, South Africa ...

Electron micro-probe analyses reveal that the chemical composition of chromite depends on the host rock type. Norite and pyroxenite host chromite with the highest Cr 2 O 3 content while harzburgite-hosted chromites are Cr and Mg poor. The wide range in chromite compositions is explained by the influence of late-magmatic processes including post ...

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Molecular weight of Iron Chromite - Convert Units

Iron Chromite molecular weight. Molar mass of FeCr2O4 = 223.8348 g/mol. Convert grams Iron Chromite to moles or moles Iron Chromite to grams. Molecular weight calculation: 55.845 + 51.9961*2 + 15.9994*4 Percent composition by element

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Composition and properties of chromite ores from new deposits ...

The chromite ores from the four deposits studied show a varying composition and a variety of physical properties due to their modification by secondary processes metamorphosis and ancient weathering. In chemical composition, most of the chromite ore samples after averaging come up to the required standard for the production of normal types of chrome magnesite parts. As far as this property ...

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Chromite: Mineral information, data and localities.

Chromite was named in 1845 by Wilhelm Haidinger in allusion to its composition. The species was originally named fer chromate alumine by Louis Nicolas Vauquelin in 1798. . Vauquelin was the discoverer of the element chrom

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Chromite: The mineral Chromite information and pictures

Chromite, the principle ore of the element chromium, is a commercially valuable mineral. However, due to mining restrictions and the fact that Chromite is not commonly found in crystallized form, it is not well-represented in mineral collections.

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Chromite Mining & Industry

Chromite is an oxide mineral composed of chromium, iron and oxygen (FeCr2O4). It also can be found as in a composition to magnesium instead of iron and become the magnesiochromite (MgCr2O4). It is a dark gray to black in color with a metallic to sub-metallic luster and a high specific gravity.

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An investigation of the mineralogical properties of chemical ...

The chemical grade chromite ores are used extensively for the production of sodium chromate. The mineralogical properties, which pose a major limitation in utilising a wide variety of chemical grade chromite ores from different origins, determine the yield of sodium chromate in the sodaash roasting process.

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Chromite | mineral | Britannica

Chromite, relatively hard, metallic, black oxide mineral of chromium and iron (FeCr 2 O 4) that is the chief commercial source of chromium.It is the principal member of the spinel series of chromium oxides; the other naturally occurring member is magnesiochromite, oxide of magnesium and chromium (MgCr 2 O 4).

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Iron Chromite Applications and General Uses | African Pegmatite

It is often called chrome flour, chromite powder, or chromite flour. The chemical composition of is FeCr2O4. This compound is preferred for many industrial applications because of its high-heat stability, resistance to thermal shock, and resistance to corrosive gasses and slags. Chromite powder isnt just used to make industrial materials.

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CHROMITE | Aria Dolphin Traders co

Some mineralogists give a generalized chemical composition of (Mg,Fe)(Cr,Al)2O4 for chromite. This composition recognizes multiple solid solution paths between chromite and hercynite (FeAl2O4), spinel (MgAl2O4), magnesiochromite (MgCr2O4), magnetite (Fe3O4), and magnesioferrite (MgFe2O4).

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Chromite: Mineral information, data and localities.

Chromite was named in 1845 by Wilhelm Haidinger in allusion to its composition. The species was originally named fer chromate alumine by Louis Nicolas Vauquelin in 1798. . Vauquelin was the discoverer of the element chrom

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Chromite: The mineral Chromite information and pictures

- Magnesium-rich variety of Chromite where the iron is replaced by magnesium. Magnesiochromite is sometimes classified as a variety of Chromite, but is scientifically recognized as an individual mineral.

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Chromite - Department for Energy and Mining

Chromite, a brownish black cubic mineral belonging to the spinel group, is the only ore mineral from which metallic chromium and chromium compounds are obtained. It has the chemical formula FeCr 2 O 4, and a theoretical composition of 32.0% FeO and 68.0% Cr 2 O 3. In its natural form it occurs in solid solution with other minerals in the spinel group, so chrome contents are less than the theoretical 68%.

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Chromite Mineral Data - Mineralogy Database

General Chromite Information : Chemical Formula: Fe++Cr2O4 : Composition: Molecular Weight = 223.84 gm Chromium 46.46 % Cr 67.90 % Cr 2 O 3: Iron 24.95 % Fe 32.10 % FeO

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Chromite - GEO143 Mineral Webpages

Mineral Name: Chromite. Chemical Composition: CrFe 2 O 4, though it can have a variable composition with magnesium and aluminum too,(Fe,Mg,Al)Cr 2 O 4.

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Chromite - an overview | ScienceDirect Topics

Chromite is an oxide mineral belonging to the spinel group, a complex mineral containing magnesium, iron, aluminum, and Cr in varying proportions, depending on the deposit, that can be represented as FeCr 2 O 4 or (Fe 2+ ,Mg) [Cr,Al,Fe 3+] 2 O 4 ( Murthy et al., 2011; Sanchez-Segado et al., 2015 ).

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