chromite ore jersey

  • Extraction of Chromium from Chromite Ore

    Chromite Ore Processing. Low-grade ore obtained from an open cut trench at a chromite deposit near Auburn, Calif., was treated in the laboratory using gravity-magnetic separation and flotation beneficiation techniques. Flotation using known methods, however, gave very poor results and will not be discussed further in this report.

  • Ettringite-Induced Heave in Chromite Ore Processing ...

    A pilot-scale treatment study was implemented at a deposition site of chromite ore processing residue (COPR) in New Jersey. Ferrous sulfate heptahydrate (FeSO4·7H2O) was employed to reduce hexavalent chromium in two dosages with three types of soil mixing equipment. XANES analyses of treated samples cured for 240 days indicated that all treatment combinations failed to meet the Cr(VI ...

  • Chromite ore processing residue in Hudson County, New Jersey.

    Chromite ore processing residue occurs at over 130 sites in Hudson County, New Jersey. Many of these sites are in urban residential areas. This waste is a result of 70 years of chromate and bichromate chemical manufacturing.

  • Turkey Chromite, Turkish Chromite Manufacturers - Made in ...

    Made in Turkey Chromite Directory - Offering Wholesale Turkish Chromite from Turkey Chromite Manufacturers, Suppliers and Distributors at TradeKey

  • Chromite Ore Processing Residue in Hudson County, New ...

    Chromite Ore Processing Residue in Hudson County, New Jersey . By Thomas Burke, Jerry Fagliano, T Marcia Goldoft, Robert E. Hazen, T Raja Iglewicz and Thomas Mckeet. Abstract. of these sites are in urban residential areas. This waste is a result of 70 years of chromate and bichromate chemical manufacturing. At least 15 % of the sites contain ...

  • Chromite - Wikipedia

    Chromite is found as orthocumulate lenses of chromitite in peridotite from the Earth's mantle. It also occurs in layered ultramafic intrusive rocks. In addition, it is found in metamorphic rocks such as some serpentinites. Ore deposits of chromite form as early magmatic differentiates.

    Category: Oxide minerals, Spinel group, Spinel structural .
  • Hudson County Chromate – Publicly Funded Sites - New Jersey

    NJDEP has identified approximately 180 sites in Hudson and Essex Counties that were contaminated with chromite ore processing residue, also known as chromate waste. The waste resulted from extracting chromium from chromite ore at three chromium processing facilities in Hudson County.

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  • Uses of Chromium | Supply, Demand, Production, Resources

    Chromite, an oxide of iron, magnesium, aluminum, and chromium, is the only ore mineral of chromium. In nature, chromite deposits are generally of two major types: stratiform (layered) and podiform (pod shaped). Both types are associated with ultramafic igneous rocks. The world's largest stratiform chromite deposits are found in South Africa, in ...

  • Chromite

    /EPIDEMIOLOGY STUDIES/ Hexavalent chromium is a known carcinogen. Previous epidemiologic studies in the 1950s of United States workers from seven facilities producing chromium compounds from chromite ore have reported a markedly increased risk for dying from lung cancer.

  • Chromium | Minerals Education Coalition

    Chromium (Cr) is a hard, bluish metallic element. The only ore of chromium is the mineral chromite and 99 percent of the world's chromite is found in southern Africa and Zimbabwe. Geologists estimate that there are about 11 billion tons of mineable chromite ore in the world, enough to supply the current demand for hundreds of years.

  • Chrome Ore Beneficiation Process | Chromite Processing ...

    May 16, 2019 · The chrome raw ore is a flotation tail ore, which is mainly formed in the chromite, and the chromite is the target recovering mineral. The dissociation degree of ferrochromium ore is low, and it has a weak magnetic property. First of all, magnetic separation processing to separate chromite.

  • New Jersey Mines

    Iron ore is abundant in northern New Jersey, and iron interests have been active since the area's earliest history. The Elizabeth Mine, one of a number of iron ore operations that comprised the Mount Hope Mine, owned by the Mount Hope Mining Company.

  • (PDF) Chromite Ore Processing Residue in Hudson County ...

    Chromite ore processing residue occurs at over 130 sites in Hudson County, New Jersey. Many of these sites are in urban residential areas.

  • 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.

  • Hudson County Chromate Chemical Production ... - New Jersey

    The Hudson County Chromate Chemical Production Waste Sites are located throughout Jersey City, Bayonne, Kearny, Newark and Secaucus in Hudson and Essex Counties. NJDEP has identified over 160 sites that are contaminated with chromite ore processing residue, also known as chromate waste.

  • Evaluation of Bridges Constructed in Chromite Ore ...

    concerns in and around Hudson County, New Jersey, operated chromite ore processing facilities. A by-product of the kiln firing of chromite ore was a soil-like material similar in appearance and properties to a brown sandy silt soil with pebble-sized particles but with a lower density than soil. Because of its similarity to soil, this

  • CHROMITE DEPOSITS OF GRANT COUNTY, OREGON

    CHROMITE DEPOSITS OF GRANT COUNTY, OREGON 79 the foot of Strawberry Mountain, and small blocks of the com­ plex in the ultramafic rocks commonly stand out in relief. The best exposure of the complex is in the bold cliffs forming the west face of Canyon Mounta'in. The greenstones and schists are

  • Ettringite-Induced Heave in Chromite Ore Processing ...

    A pilot-scale treatment study was implemented at a deposition site of chromite ore processing residue (COPR) in New Jersey. Ferrous sulfate heptahydrate (FeSO4·7H2O) was employed to reduce hexavalent chromium in two dosages with three types of soil mixing equipment. XANES analyses of treated samples cured for 240 days indicated that all treatment combinations failed to meet the Cr(VI ...

  • District of New Jersey Finds the Government Not Liable for ...

    PPG Industries, Inc. ("PPG") was the owner and operator of property in Jersey City, New Jersey (the "Site") from 1954 to 1962 where a chromite ore processing plant was located. PPG purchased the Site from Natural Products Refining Company ("NPR"), which had owned and operated the Site since 1910 and whose operations included ...

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  • Jersey City Chromium cleanup terms settled

    PPG had a chromite ore refinement plant on the largest of the sites, at 900 Garfield Ave., from 1924 to 1963. A byproduct of the refinement is hexavalent chromium, which causes cancer and has been ...

  • Chromite ore processing residue in Hudson County, New Jersey.

    Chromite ore processing residue occurs at over 130 sites in Hudson County, New Jersey. Many of these sites are in urban residential areas. This waste is a result of 70 years of chromate and bichromate chemical manufacturing.

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  • Chromite ore processing residue in Hudson County, New Jersey.

    Chromite ore processing residue occurs at over 130 sites in Hudson County, New Jersey. Many of these sites are in urban residential areas. This waste is a result of 70 years of chromate and bichromate chemical manufacturing.

  • Chromite Ore Processing Residue (COPR): Hazardous ...

    Chromite ore processing residue (COPR), which contains hexavalent chromium (Cr 6+) at concentrations typically in the range of thousands of milligrams/kilograms, was deposited over a timeframe of 50 years as fill at a site referred to as SA7 in New Jersey.Significant surface heaving associated with COPR weathering-induced mineralogical expansion has been observed at the site over time.