Kodi Pansi Pansi Ndi Zitsulo Kapena Maminolo?

Kodi Pansi Pansi Ndi Zitsulo Kapena Maminolo?

Dziko lapansi losowandi chitsulo. Dziko lapansi losawerengeka ndi mawu ophatikiza zitsulo 17 mu tebulo la periodic, kuphatikizapo lanthanide elements ndi scandium ndi yttrium. Pali mitundu 250 ya mchere wosowa padziko lapansi m'chilengedwe. Munthu woyamba amene anapeza dziko losowa anali wasayansi wa ku Finnish Gadolin. Mu 1794, adalekanitsa mtundu woyamba wa chinthu chosowa padziko lapansi ndi miyala yolemera yofanana ndi phula.

Rare Earth ndi mawu ophatikiza 17 zitsulo zazitsulo mu periodic table of chemical elements. Iwo ndi kuwala kosowa dziko lapansi,lanthanum, cerium, praseodymium, neodymium, promethium, samarium, ndi europium; Zinthu zolemera kwambiri zapadziko lapansi: gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, ndi yttrium.Dziko lapansi losowa kwambiri limakhalapo ngati mchere, choncho ndi mchere osati nthaka. China ili ndi nkhokwe zapadziko lapansi zosowa kwambiri, zomwe zimakhazikika m'zigawo ndi mizinda monga Inner Mongolia, Shandong, Sichuan, Jiangxi, ndi zina zotero, ndi mtundu wakum'mwera kwa ion adsorption ndi ore osowa kwambiri padziko lapansi kukhala opambana kwambiri.

Madziko osowa padziko lapansi osowa kwambiri nthawi zambiri amakhala ngati ma insoluble carbonates, fluorides, phosphates, oxides, kapena silicates. Zinthu zosawerengeka zapadziko lapansi ziyenera kusinthidwa kukhala zosungunuka m'madzi kapena ma inorganic acid kudzera mukusintha kwamankhwala osiyanasiyana, kenako ndikudutsa njira monga kusungunuka, kupatukana, kuyeretsedwa, kuwerengera, kapena kuwerengetsa kuti apange mitundu yosiyanasiyana yamitundu yosakanikirana yapadziko lapansi monga osakanizika osowa padziko lapansi ma chlorides, omwe atha kugwiritsidwa ntchito ngati zinthu kapena zopangira zolekanitsa zinthu zapadziko lapansi zosowa. Njira imeneyi imatchedwa kuti rare earth concentrate decomposition, yomwe imadziwikanso kuti pre-treatment.