Hot Selling Machines
Mining Machines Home>Products

iron compounds of chromite materials

2019-04-17T23:04:39+00:00
  • Iron Chromite – Applications and General Uses African ...

    Iron chromite is an inorganic mineral compound that is essential to several industries. It is often called chrome flour, chromite powder, or chromite flour. The chemical composition of is FeCr2O4.

  • Iron Compounds of, Chromite Materials Handbook

    Find suppliers of Iron and Compounds of, Chromite serving the ceramic, Limestone, brick, decorating and related markets in the ceramic manufactruing industry. This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing ...

  • Iron(II) chromite - Wikipedia

    Iron (II) chromite is an inorganic compound with the chemical formula FeCr 2 O 4.

  • Chemical formula: FeCr₂O₄
  • Iron(II) chromite CrFeO3 - PubChem

    Iron(II) chromite. Ferrochromite. Iron chromate. Iron chromite. Chrome black. Chromic acid, iron salt. Iron chromite brown spinel. EINECS 235-790-8. Dichromium iron tetraoxide. EC 235-790-8. EINECS 235-105-2. Q3787078

  • Iron(II) chromite CrFeO3 - PubChem

    Iron(II) chromite. Ferrochromite. Iron chromate. Iron chromite. Chrome black. Chromic acid, iron salt. Iron chromite brown spinel. EINECS 235-790-8. Dichromium iron tetraoxide. EC 235-790-8. EINECS 235-105-2. Q3787078

  • Chrome Compounds: Refractory Cements, Refractory Materials ...

    The use of chrome compounds in refractory environments dates back over one hundred years. Refractories of just chromite had been used in iron and steel making environments however under a high weight load tended to mechanically collapse and fail(12). Western and Central European foundries had been utilising silicate-bonded magnesia bricks which ...

  • Chromite Ore - an overview ScienceDirect Topics

    Chromium metal is obtained commercially by heating chromite ore in the presence of carbon, aluminum, or silicon, and subsequent purification (ATSDR, 2000). Sodium chromate and dichromate are produced by roasting chromite ore with soda ash and are the primary chromium salts from which most other chromium compounds are derived (ATSDR, 2000).

  • iron compounds of chromite materials

    iron compounds of chromite materials. WO1990004656A1 - Google Patents. The presence of chromite in significant amount in ilmenite downgrades the market value of the ilmenite. A substantial amount of the chromite may be removed, firstly by a reduction step, secondly by a leaching, aeration or oxidation roasting step and finally by a physical separation step. An optional preoxidation may precede ...

  • Chromite - an overview ScienceDirect Topics

    Chromite. 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 FeCr2O4 or (Fe2+,Mg)[Cr,Al,Fe3+]2O4 (Murthy et al., 2011; Sanchez-Segado et al., 2015). From: Environmental Materials and Waste, 2016

  • Chromite: The only mineral ore of chromium metal

    What is Chromite? Chromite is an oxide mineral composed of chromium, iron, and oxygen (FeCr 2 O 4).It is dark gray to black in color with a metallic to submetallic luster and a high specific gravity. It occurs in basic and ultrabasic igneous rocks and in the metamorphic and sedimentary rocks that are produced when chromite-bearing rocks are altered by heat or weathering.

  • Iron Chromate

    Notes. A dense compound of iron and chromium. It is very refractory in oxidation, even with 50% borax and zero-alumina Ferro frit 3134 it does not melt. It is used in glazes to produce gray (with feldspar), brown (with zinc), red (with tin) or black depending on the base glaze and percentage and other coloring oxides present. Often used in underglazes, engobes and clay bodies.

  • WO2015061249A1 - Production of low carbon chromium iron ...

    A process for producing low carbon chromium iron alloys directly from chromite concentrates wherein superheated liquid aluminum is flowed in a controlled manner into a reaction vessel preheated to a temperature of approximately 1,000°C while simultaneously feeding chromite concentrates preheated to a temperature in the same range at a controlled rate into the preheated reaction vessel.

  • Reactivity of Low-Grade Chromite Concentrates towards ...

    1 day ago  iron bearing compounds of the chromite body are FeOFe2O3 and FeOCr2O3, the SEM-EDS analysis of the fraction reacted at α-0.40 is an indirect confirmation for the removal of magnetite and iron chromite from the HGChC. Spectra at α = 0.60 and α = 0.80 with their decreasing chromium peak intensity reflect the evolution of the composition, down to a chromium-free residue at α = 0.88 ...

  • Chromite—A cost-effective refractory raw material for ...

    relatively higher proportions of chromium to iron reduce the potential for iron . 363 oxide bursting and volume expansion at high temperatures and result in higher refractoriness. CHROMITE AS A REFRACTORY MATERIAL Refractory materials Refractories are a branch of ceramics, which is mankind’s oldest art. The word refractory is defined as resistant to change, and in the metallurgical

  • What is Chrome Flour and How is it used in Daily life ...

    Also known as iron chromite, chromite powder, chrome flour 325, and chromite flour, it is an inorganic compound that is used as a pigment and as a vital component in some of the highest performing refractory materials. Its chemical composition is Cr 2 O 3.

  • Reactivity of Low-Grade Chromite Concentrates towards ...

    1 day ago  iron bearing compounds of the chromite body are FeOFe2O3 and FeOCr2O3, the SEM-EDS analysis of the fraction reacted at α-0.40 is an indirect confirmation for the removal of magnetite and iron chromite from the HGChC. Spectra at α = 0.60 and α = 0.80 with their decreasing chromium peak intensity reflect the evolution of the composition, down to a chromium-free residue at α = 0.88 ...

  • Chromite - an overview ScienceDirect Topics

    The pelletization of chromite fines and concentrates is usually based on mixing chromites, binder (bentonite), recycled material, and possibly coke fines and roasting at sufficiently high temperatures (1200° to 1300°C). It is known that roasting in air results in better pellet quality due to the oxidation of iron (2+ to 3+) taking the octahedral sites in spinel structure. A minor share of ...

  • Iron Chromate

    A dense compound of iron and chromium. It is very refractoryin oxidation, even with 50% borax and zero-alumina Ferro frit3134 it does not melt. It is used in glazes to produce gray (with feldspar), brown (with zinc), red (with tin) or black depending on the base glazeand

  • WO2015061249A1 - Production of low carbon chromium iron ...

    A process for producing low carbon chromium iron alloys directly from chromite concentrates wherein superheated liquid aluminum is flowed in a controlled manner into a reaction vessel preheated to a temperature of approximately 1,000°C while simultaneously feeding chromite concentrates preheated to a temperature in the same range at a controlled rate into the preheated reaction vessel.

  • WO2017127788A1 - Modified black spinel pigments for Limestone ...

    Modified copper chromite spinel pigments exhibit lower coefficients of thermal expansion than unmodified structures. Three methods exist to modify the pigments: (1 ) the incorporation of secondary modifiers into the pigment core composition, (2) control of the pigment firing profile, including both the temperature and the soak time, and (3) control of the pigment core composition.

  • MATERIAL SAFETY DATA SHEET JANUARY 2011 SECTION I

    SYNONYMS: Iron Chromite, Chromite, Chromite Ore, Chrome Ore CAS NUMBER: 1308‐31‐2 MSDS NUMBER: AMCHROMITE DESCRIPTION: Chromite is a mineral compound of a natural oxide of ferrous iron and chromium, with varying amounts of magnesium and aluminum substituting for the iron

  • Chromium iron oxide CrFeO3 - PubChem

    Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is ...

  • Chrome Flour Glass Application African Pegmatite

    Our iron chromite naturally contains between 44% and 46% chrome, with a maximum 3% silica and the perfect chrome-to-iron ratio (1:1.5). The raw material is milled to an ultra-fine powder, 98% below 45 micron/ 325 mesh. This allows for better dispersal during your mixing processes and eliminates speckling.

  • Chromite—A cost-effective refractory raw material for ...

    relatively higher proportions of chromium to iron reduce the potential for iron . 363 oxide bursting and volume expansion at high temperatures and result in higher refractoriness. CHROMITE AS A REFRACTORY MATERIAL Refractory materials Refractories are a branch of ceramics, which is mankind’s oldest art. The word refractory is defined as resistant to change, and in the metallurgical

  • Chromium iron oxide CrFeO3 - PubChem

    Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is ...

  • Iron Chromite / Chrome Ore (Fe++Cr2O4)

    Iron Chromite / Chrome Ore (Fe++Cr2O4)

  • 5 Uses of Chromium Uses of Chromium in Industry ...

    Various chromium salts processed from chromite are the main raw materials in the chemical industry. Chromium salt is one of the main varieties of inorganic salts. It is mainly used in electroplating, tanning, printing, and dyeing, medicine, fuel, catalysts, oxidants, matches, and metal corrosion inhibitors. At the same time, metallic chromium has become one of the most important electroplated ...

  • Iron - Compounds Britannica

    Compounds of iron in the +2 state are designated ferrous and contain the pale green Fe 2+ ion or complex ions. Compounds of iron in the +3 state are called ferric and contain the Fe 3+ ion (which is yellow to orange to brown, depending on the extent of hydrolysis) or complex ions.

  • (PDF) Chromite - ResearchGate

    The produced chromite ore is consumed mostly by the iron-steel (about 85%) and . chemical industries (about 15%) (Yalcin, 2003). Etibank, a state-owned company, is Turkey’ s major. chromite ore ...

  • Iron compounds. Medical search. Web

    Iron Compounds Iron Ferrous Compounds Ferric Compounds Iron Chelating Agents Iron-Dextran Complex Iron Isotopes Glucaric Acid Dioscoreaceae Food, Fortified Ferritins Biological Availability Iron Overload Iron, Dietary Iron Radioisotopes Anemia, Iron-Deficiency Iron Regulatory Protein 1 Iron Metabolism Disorders Iron Regulatory Protein 2 Deferoxamine Molecular Structure Siderophores

  • Analytical and mineralogical studies of ore and impurities ...

    2008-02-15  The voltammetric analysis has allowed to demonstrate that iron in the sample was as Fe(II). The main compound of the chromite ore was a spinel (magnesiochromite ferroan), identified by XRD from the sample, which constitutes the chromite ore. This technique has also been useful to characterize some silicates as impurities in the chromite ore sample. Light microscopy has allowed

  • ULTRAMAFIC ASSOCIATED CHROMITE AND NICKEL

    Chromite is used extensively as a refractory material. It is used in the manufacture of refractory brick, basic brick, foundry ‘sand’, castables, mortar, and ramming and gunning compounds. Chromite has a high melting temperature range of 1545” to 173O”C, depending on its

  • Chromite Earth Sciences Museum University of Waterloo

    Noront and Freewest each discovered notable deposits of chromite as well. When U.S. iron ore and coal producer, Cliffs Natural Resources Inc heard of the promising area they purchased the company Freewest. By 2015 Cliffs expects to be producing 1 million to 2 million tonnes of high-grade chromite annually. The price of success: The Ring of Fire covers more than 40% of the province of Ontario ...

  • Chromite Sand Testing - Minerals Technologies Inc.

    between “as received” material and material that has been dried to a constant weight in an oven. ... inorganic compounds and accessory minerals often associated with chromite sand deposits. • Materials can also gain weight due to oxidation reactions. This is especially true of chromite sands when tested in an oxidizing atmosphere such as a typical laboratory furnace. Typical foundry ...

  • TEL
    0086-21-33901608