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chromite ore reference

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US7670576B2 - Methods of treatment of chromite ore ...

ore processing chromite ore Prior art date 2004-09-10 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active - Reinstated, expires 2026-04-25 Application number US11/578,621 Other versions ...

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Peridotite - Credo Reference

Peridotite ONE OF THE MOST ECONOMICALLY important rocks, peridotite is the ultimate source of all chromium ore, and its variety kimberlite is the source of all naturally occurring diamonds. Fresh peridotite contains olivine, pyroxene, and chromite. Peridotite that has been altered by weathering

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Chromite dictionary definition | chromite defined

chromite definition: a hard, black mineral, FeCrO, the chief ore of chromium...

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Ore - Wikipedia

The basic extraction of ore deposits follows these steps: Prospecting or exploration to find and then define the extent and value of ore where it is located ("ore body") Conduct resource estimation to mathematically estimate the size and grade of the deposit; Conduct a pre-feasibility study to determine the theoretical economics of the ore deposit.

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Chromium and disease: review of epidemiologic studies with ...

The relationship between employment in industries producing chromium compounds from chromite ore and lung cancer has been well established in numerous studies. The relationship between exposure to certain chromium-based pigments and chromic acid and .

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What Are the Main Uses of Iron Ore? | Reference

Iron ore is the main ingredient in steel, which makes up 95 percent of the metals used in the world per year. Two billion metric tons of raw iron ore are produced in a year. The world's largest single producer of iron ore is Brazilian mining company Vale, which produces over 350 million tons of iron ore annually.

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FI127031B - Method and arrangement for processing chromite ...

The arrangement comprises a first feeding arrangement 9 for providing a chromite concentrate feed 1, and a second feeding arrangement 10 comprising at least a first feeding means (not marked with a reference numeral) for adding fluxing agent 2 to the chromite ore feed 1 to obtain a pelletizing feed 12.

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Lavish Chromite - EVE Online Reference

When chunks of ore mined out of moons yield above-average densities of Chromite, the ore is called Lavish Chromite and reprocessing returns approximately 15% higher quantities of useful material. An uncommon ore commercially mined from moons, Chromite is quite valuable as it yields good quantities of Chromium, an important element of many advanced materials.

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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 - Wikipedia

Chromite ore can be mined to produce chromite concentrate. It can also be crushed and processed. Chromite concentrate, when combined with a reductant such as coal or coke and a high temperature furnace can produce ferrochrome. Ferrochrome is a type of ferroalloy that is an alloy in between chromium and iron.

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Chromium: Occurrence, principles of extraction, Properties ...

The important ore of chromium is Chromite or chrome ore, FeO Cr 2 O 3 . The chief ore of chromium is chromite ore. Extraction of chromium metal from chromite ore . The extraction of chromium metal from chromite ore consists of the following steps. 1. Concentration . The crushed ore is concentrated by gravity separation method. 2.

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(PDF) Quantitative analysis of chromite ores using glass ...

Quantitative analysis of chromite ores using glass discs in moderate dilutions of lithium tetraborate by x‐ray fluorescence spectrometry. ... Chrome Ore reference materials were used. Analytical ...

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Chromite - EVE Online Reference

An uncommon ore commercially mined from moons, Chromite is quite valuable as it yields good quantities of Chromium, an important element of many advanced materials. Chromite ores will also yield Hydrocarbons, Nocxium, Isogen, Mexallon, and Pyerite.

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Review of Chromite Ore Processing Residue (COPR): Past ...

Chromite ore processing residue (COPR) is a waste byproduct of chromate production that contains high levels of hexavalent chromium (Cr[VI]). Although the high temperature chromite process was banned in several countries, its legacy still exists at numerous contaminated sites. For instance, New Jersey alone has over 2 million tons of waste COPR.

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Podiform Chromite Deposits—Database and Grade and .

podiform chromite, and banded podiform chromite deposits. Our new models are based on a reclassification and testing of deposits with reference to paleotectonic settings, ophiolite positions, and deposit subtypes. The major and minor podi-form chromite tonnage and .

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ALPINE-TYPE CHROMITE IN NORTH BORNEO, WITH SPECIAL ...

Ameriean Mi*eralogist Vol. 57, pp. eas-dSZ irszzl I ALPINE-TYPE CHROMITE IN NORTH BORNEO, WITH SPECIAL REFERENCE TO DARVEL BAY1 Cuenr,ps .

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How Is Chromite Used? | Reference

Chromite, a mineral ore that is mined from crystallized magma, is used in the production of steel as a pigment and as a catalyst in many chemical reactions. It is also an important component of the leather tanning process. Chromite is also used to anodize aluminum for use in jet engines.

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Chromite (Cr2FeO4) | CrFeO4 - PubChem

Chromite ore processing residue (COPR) is a waste byproduct of chromate production that contains high levels of hexavalent chromium (Cr[VI]). Although the high temperature chromite process was banned in several countries, its legacy still exists at numerous contaminated sites.

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Chromite - Wikipedia

Chromite ore can be mined to produce chromite concentrate. It can also be crushed and processed. Chromite concentrate, when combined with a reductant such as coal or coke and a high temperature furnace can produce ferrochrome. Ferrochrome is a type of ferroalloy that is an alloy in between chromium and iron.

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Masinloc Mines (MRDS #10183284) CR - mrdata.usgs.gov

prior to 1975 consolidated mines incorporated was the only refractory chromite producer in the philippines. 1964 - an aerial tram was installed and ore started to be taken from the government zambia mineral reservation. 1976 - chromite ore production suffered a decline in volume although values increased by about 50%.

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Conversion of Chromium Ore Processing Residue to Chrome .

The kinetics of reduction of chromite ore plays an important role in controlling the productivity of the processes and quality of Ferro-chromium. A considerable amount of research has been carried out on the carbothermic reduction of chromite ore to elucidate the kinetics .

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