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Extraction txoj kev ntawm scandium
Extraction txoj kev ntawm scandium Rau ib lub sij hawm ntau ntawm lub sij hawm tom qab nws nrhiav tau, kev siv ntawm scandium tsis tshwm sim vim nws nyuaj rau ntau lawm. Nrog rau kev txhim kho ntau ntxiv ntawm cov txheej txheem kev sib cais ntawm lub ntiaj teb tsis tshua muaj, tam sim no muaj cov txheej txheem paub tab rau purifying scandi ...Nyeem ntxiv -
Qhov tseem ceeb ntawm kev siv scandium
Kev siv lub ntsiab ntawm scandium Kev siv scandium (raws li cov khoom siv tseem ceeb, tsis yog rau doping) yog concentrated nyob rau hauv lub ci ntsa iab, thiab nws tsis yog ib qho exaggeration hu nws Leej Tub ntawm lub teeb. 1. Scandium sodium teeb Tus thawj khawv koob riam phom ntawm scandium hu ua scandium sodium teeb, uas ...Nyeem ntxiv -
Rare Earth Elements | Lutetium (Lu)
Xyoo 1907, Welsbach thiab G. Urban tau ua lawv txoj kev tshawb fawb thiab nrhiav tau ib lub ntsiab lus tshiab los ntawm "ytterbium" siv txoj kev sib cais sib txawv. Welsbach hu ua lub caij no Cp (Cassiope ium), thaum G. Nroog hu ua Lu (Lutetium) raws li Paris 'laus lub npe lutece. Tom qab ntawd, nws tau pom tias Cp thiab ...Nyeem ntxiv -
Rare ntiaj teb keeb | Ytterbium (Yb)
Xyoo 1878, Jean Charles thiab G.de Marignac nrhiav pom lub ntiaj teb tsis tshua muaj nyob hauv "erbium", lub npe Ytterbium los ntawm Ytterby. Kev siv tseem ceeb ntawm ytterbium yog raws li hauv qab no: (1) Siv los ua cov khoom siv thermal shielding txheej. Ytterbium tuaj yeem txhim kho corrosion kuj ntawm electrodeposited zinc ...Nyeem ntxiv -
Rare ntiaj teb keeb | Thulium (Tm)
Thulium keeb tau pom los ntawm Cliff hauv Sweden xyoo 1879 thiab hu ua Thulium tom qab lub npe qub Thule hauv Scandinavia. Kev siv tseem ceeb ntawm thulium yog raws li hauv qab no. (1) Thulium yog siv los ua lub teeb thiab lub teeb kho mob hluav taws xob. Tom qab raug irradiated nyob rau hauv chav kawm tshiab thib ob tom qab lub ...Nyeem ntxiv -
Rare ntiaj teb keeb | erbium (zeeg)
Xyoo 1843, Mossander ntawm Sweden tau tshawb pom lub ntsiab erbium. Cov khoom kho qhov muag ntawm erbium yog qhov tseem ceeb heev, thiab lub teeb emission ntawm 1550mm ntawm EP +, uas ib txwm muaj kev txhawj xeeb, muaj qhov tseem ceeb tshwj xeeb vim tias qhov wavelength no yog qhov tseeb nyob rau ntawm qhov qis tshaj perturbation ntawm optic ...Nyeem ntxiv -
Rare ntiaj teb keeb | cerium (zeeg)
Lub caij 'cerium' tau tshawb pom thiab muaj npe nyob rau xyoo 1803 los ntawm German Klaus, Swedes Usbzil, thiab Hessenger, hauv kev nco txog ntawm lub hnub qub Ceres nrhiav tau nyob rau xyoo 1801. Daim ntawv thov ntawm cerium tuaj yeem ua tiav hauv cov hauv qab no. (1) Cerium, raws li cov iav ntxiv, tuaj yeem nqus tau ultravio ...Nyeem ntxiv -
Rare ntiaj teb keeb | Holmium (zeeg)
Nyob rau hauv lub thib ob ib nrab ntawm lub xyoo pua puv 19, qhov kev tshawb pom ntawm spectroscopic tsom xam thiab luam tawm ntawm lub sij hawm cov lus, ua ke nrog rau kev nce qib ntawm electrochemical cais cov txheej txheem rau lub ntiaj teb tsis tshua muaj cov ntsiab lus, ntxiv txhawb kev tshawb pom ntawm lub ntiaj teb tsis tshua muaj cov ntsiab lus tshiab. Xyoo 1879, Cliff, ib tug Swede ...Nyeem ntxiv -
Rare ntiaj teb keeb | Dysprosium (Dy)
Xyoo 1886, tus txiv neej Fabkis txoj Boise Baudelaire tau ua tiav holmium rau hauv ob lub ntsiab lus, ib qho tseem hu ua holmium, thiab lwm lub npe hu ua dysrosium raws li lub ntsiab lus ntawm "nyuaj tau" los ntawm holmium (Figures 4-11). Dysprosium yog tam sim no ua lub luag haujlwm tseem ceeb hauv ntau lub hi...Nyeem ntxiv -
Rare ntiaj teb keeb | Terbium (Tb)
Xyoo 1843, Karl G. Mosander ntawm Sweden nrhiav tau lub caij terbium los ntawm nws txoj kev tshawb fawb ntawm yttrium ntiaj teb. Daim ntawv thov ntawm terbium feem ntau cuam tshuam nrog kev ua haujlwm siab, uas yog cov thev naus laus zis siv zog thiab kev paub txog kev ua haujlwm siab, nrog rau cov haujlwm uas muaj txiaj ntsig zoo rau kev lag luam ...Nyeem ntxiv -
Rare ntiaj teb keeb | Gadolinium (Gd) hmoov
Xyoo 1880, G.de Marignac ntawm Switzerland tau cais "samarium" ua ob lub ntsiab lus, ib qho tau lees paub los ntawm Solit los ua samarium thiab lwm lub ntsiab lus tau lees paub los ntawm Bois Baudelaire txoj kev tshawb fawb. Hauv xyoo 1886, Marignac tau muab lub npe tshiab no gadolinium rau kev hwm ntawm Dutch chemist Ga-do Linium, uas ...Nyeem ntxiv -
Rare Earth Elements | Eu
Xyoo 1901, Eugene Antole Demarcay nrhiav tau ib lub ntsiab lus tshiab los ntawm "samarium" thiab hu ua Europium. Qhov no tej zaum muaj npe tom qab lub sij hawm Europe. Feem ntau ntawm cov europium oxide yog siv rau fluorescent hmoov. Eu3 + yog siv los ua tus activator rau liab phosphors, thiab Eu2 + yog siv rau xiav phosphors. Tam sim no, ...Nyeem ntxiv