Video: Cov mis ntawm chromite ore yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chromite ore muaj cov qauv spinel nrog cov qauv dav dav ntawm (Fe, Mg) O. (Cr, Al, Fe)2O3. Cov ntsiab lus ntawm Cr2O3 rau metallurgical-qib chromite ore yog nyob rau hauv thaj tsam 42-55% thiab cov chromium -rau- hlau ratio yog siab tshaj 1.5.
Dhau li ntawm no, kuv yuav ua li cas paub yog tias kuv muaj chromite ore?
Tes qauv kev txheeb xyuas ntawm chromite xav tau kev saib xyuas ntawm: xim, lub ntiajteb txawj nqus, luster, thiab tus yam ntxwv xim av streak. Qhov tseem ceeb tshaj plaws qhia rau txheeb xyuas chromite yog nws lub koom haum nrog ultrabasic igneous pob zeb thiab metamorphic pob zeb xws li serpentinite. Chromite yog qee zaum sib nqus me ntsis.
Ib yam li ntawd, puas yog chromite thiab chromium tib yam? Raws li lub npe txawv nruab nrab chromium thiab chromium yog tias chromite yog (mineral) ib hom kab mob xim av tsaus nti nrog cov mis fecr2o4 thaum chromium yog ib qho tshuaj lom neeg hlau (cim cr) nrog tus lej atomic ntawm 24.
Tom qab ntawd, lo lus nug yog, qhov twg kuv tuaj yeem nrhiav chromite ore?
Chromite yog pom raws li orthocumulate lo ntsiab muag ntawm chromitite nyob rau hauv peridotite los ntawm lub ntiaj teb lub mantle. Nws kuj tshwm sim nyob rau hauv txheej txheej ultramafic intrusive pob zeb. Tsis tas li ntawd, nws muaj nyob hauv cov pob zeb metamorphic xws li qee cov serpentinites. Ore deposits ntawm chromite tsim raws li thaum ntxov magmatic sib txawv.
Puas yog chromite tsawg lossis ntau?
Nws muaj ib tug conchoidal los yog ib tug tsis sib xws puas thiab tsis muaj cleavage. Crystals yog me me thiab tsis tshua muaj . Nws tuaj yeem tshwm sim hauv octahedrons tab sis nws feem ntau pom muaj cov qauv loj. Thaum kawg, txawm tsis yog tag nrho cov qauv ntawm chromite yog magnetic ib co qauv yuav qhia me ntsis magnetism.
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