GRINDABILITY AND MAGNETIC PROPERTY OF CHROMITES FROM VARIOUS LOCALITIES IN RELATION TO THEIR MINERALOGICAL PROPERTIES: FUNDAMENTAL STUDIES ON MINERAL PROCESSING OF CHROMITES (3RD REPORT).

Shuji Owada, Taneomi Harada

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Mineralogical properties of eight kinds of chromites from various localities, and their effects on the grindability and magnetic property were investigated. It was found that there are great differences in the chemical composition, lattice constant, specific gravity, crystallinity, and surface structure in the chromites investigated. Vicker's hardness becomes higher, as the Cr//2O//3 content of chromite decreases. The adequate correlation is not observed between the hardness and grindability. The lower the homogeneity of the surface and internal structure is, the higher the grindability of chromite becomes. All chromites investigated show the paramagnetic property at room temperature and their susceptibilities have the apparent positive correlation with Fe**2** plus content of chromite. Some chromites have the relatively large spontaneous magnetization at liquid nitrogen temperature. It is supposed that the distribution of magnetic ions is not uniform in the crystal structure and so the ferrimagnetism is generated in some higher concentrated parts.

    Original languageEnglish
    Pages (from-to)781-786
    Number of pages6
    JournalNihon Kogyokaishi
    Volume101
    Issue number1174
    Publication statusPublished - 1985 Dec

    Fingerprint

    Chromite
    Ore treatment
    Magnetic properties
    Ferrimagnetism
    Vickers hardness
    Liquid nitrogen
    Surface structure
    Density (specific gravity)
    Lattice constants
    Magnetization
    Crystal structure
    Hardness
    Temperature
    Ions
    Chemical analysis

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

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    title = "GRINDABILITY AND MAGNETIC PROPERTY OF CHROMITES FROM VARIOUS LOCALITIES IN RELATION TO THEIR MINERALOGICAL PROPERTIES: FUNDAMENTAL STUDIES ON MINERAL PROCESSING OF CHROMITES (3RD REPORT).",
    abstract = "Mineralogical properties of eight kinds of chromites from various localities, and their effects on the grindability and magnetic property were investigated. It was found that there are great differences in the chemical composition, lattice constant, specific gravity, crystallinity, and surface structure in the chromites investigated. Vicker's hardness becomes higher, as the Cr//2O//3 content of chromite decreases. The adequate correlation is not observed between the hardness and grindability. The lower the homogeneity of the surface and internal structure is, the higher the grindability of chromite becomes. All chromites investigated show the paramagnetic property at room temperature and their susceptibilities have the apparent positive correlation with Fe**2** plus content of chromite. Some chromites have the relatively large spontaneous magnetization at liquid nitrogen temperature. It is supposed that the distribution of magnetic ions is not uniform in the crystal structure and so the ferrimagnetism is generated in some higher concentrated parts.",
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