Teebtsawg ntiaj tebthiab hnyavtsawg ntiaj teb
· Lub teebtsawg ntiaj teb
·Lanthanum, cerium, praseodymium,neodymiumpromethium,samarium, europium, gadolinium nyob rau hauv cov ntshav.
· Hnyavtsawg ntiaj teb
·Terbium,dysprosium,holmium, erbium,thulium,ytterbium, lutetium, scandium, thiabyttrium.
· Raws li cov yam ntxwv ntxhia, nws tuaj yeem muab faib uaceriumpab pawg thiabyttriumpab pawg
·Ceriumpab pawg (lighttsawg ntiaj teb)
·Lanthanum,cerium,praseodymium,neodymiumpromethium,samarium,europium.
· Yttrium pawg (hnyav tsis tshua muaj ntiaj teb)
·Gadolinium, terbium,dysprosium,holmium,erbium,thulium,ytterbium,lutetium,scandium, thiabyttrium.
Feem ntautsawg ntiaj tebcov ntsiab lus
·Commontsawg ntiaj tebmuab faib ua: monazite, bastnaesite,yttriumphosphate, leaching hom ore, thiab lanthanum vanadium limonite.
Monazite
· Monazite, tseem hu ua phosphocerium lanthanide ore, tshwm sim hauv granite thiab granite pegmatite;Tsis tshua muaj hlau carbonate pob zeb;Hauv quartzite thiab quartzite;Hauv Yunxia syenite, feldspar aegirite, thiab alkaline syenite pegmatite;Alpine hom leeg;Nyob rau hauv sib xyaw pob zeb thiab weathered crust thiab xuab zeb ore.Vim qhov tseeb tias cov peev txheej tseem ceeb ntawm monazite nrog kev lag luam mining tus nqi yog alluvial los yog ntug hiav txwv xuab zeb deposits, nws yog tsuas yog faib raws ntug dej hiav txwv ntawm Australia, Brazil, thiab Is Nrias teb.Tsis tas li ntawd, Sri Lanka, Madagascar, South Africa, Malaysia, Tuam Tshoj, Thaib, Kaus Lim Qab Teb, North Kauslim thiab lwm qhov chaw txhua tus muaj qhov hnyav placer deposits ntawm monazite, feem ntau yog siv los rho tawm cov ntsiab lus tsis tshua muaj hauv ntiaj teb.Nyob rau hauv xyoo tas los no, monazite ntau lawm tau pom qhov kev poob qis, feem ntau yog vim muaj cov xov tooj cua thorium hauv nws cov ore, uas ua rau muaj kev phom sij rau ib puag ncig.
Chemical composition and properties: (Ce, La, Y, Th) [PO4].Cov muaj pes tsawg leeg sib txawv heev.Cov ntsiab lus ntawmtsawg ntiaj teb oxidesnyob rau hauv cov ntxhia muaj pes tsawg leeg tuaj yeem ncav cuag 50-68%.Cov isomorphic sib xyaw suav nrog Y, Th, Ca, [SiO4], thiab [SO4].
Monazite yog soluble hauv H3PO4, HClO4, thiab H2SO4.
· Crystal qauv thiab morphology: monoclinic siv lead ua system, rhombic columnar siv lead ua hom.Cov siv lead ua ua ib lub phaj zoo li lub ntsej muag, thiab cov khoom siv lead ua feem ntau muaj kab txaij lossis columnar, conical, lossis granular duab.
· Lub cev muaj zog: Nws yog xim daj daj, xim av, xim liab, thiab qee zaus ntsuab xim.Semi pob tshab rau pob tshab.Kab txaij yog dawb los yog lub teeb liab daj.Nws muaj zog iav luster.Hardness 5.0-5.5.Embrittlement.Qhov tshwj xeeb lub ntiajteb txawj nqus yog li ntawm 4.9 txog 5.5.Lub zog tsis muaj zog electromagnetic.Emitting lub teeb ntsuab nyob rau hauv X-rays.Tsis emit teeb nyob rau hauv cathode rays.
Yttriumphosphate ore
· Phosphorusyttriumore yog tsim nyob rau hauv granite, granite pegmatite, thiab kuj nyob rau hauv alkaline granite thiab lwm yam mineral deposits.Nws kuj yog tsim nyob rau hauv placers.Kev Siv: Siv los ua cov khoom siv ntxhia rau kev rho tawmtsawg ntiaj tebcov ntsiab lus thaum enriched nyob rau hauv loj qhov ntau.
· Tshuaj muaj pes tsawg leeg thiab khoom: Y [PO4].Cov muaj pes tsawg leeg muajy2o3 ua61.4% thiab P2O5 38.6%.Muaj kev sib tov ntawmyttriumpab pawgtsawg ntiaj tebcov ntsiab lus, feem ntauytterbium, erbium, dysprosium, thiabgadolinium nyob rau hauv cov ntshav.Cov ntsiab lus xws lizirconium, uranium, thiab thorium tseem hloovyttrium, thaumsiliconkuj hloov phosphorus.Feem ntau hais lus, cov ntsiab lus ntawm uranium hauv phosphorusyttriumore yog ntau dua li ntawm thorium.Cov khoom siv tshuaj lom neeg ntawmyttriumphosphate ore yog ruaj khov.Crystal qauv thiab morphology: tetragonal siv lead ua system, complex tetragonal biconical siv lead ua hom, hauv granular thiab thaiv daim ntawv.
Lub cev muaj zog: daj, liab xim av, qee zaum daj ntsuab, kuj xim av los yog lub teeb xim av.Cov kab txaij yog lub teeb xim av.iav luster, roj luster.Hardness 4-5, tshwj xeeb gravity 4.4-5.1, nrog tsis muaj zog polychromism thiab radioactivity.
Lanthanum vanadium epidote
Ib pab pawg tshawb fawb sib koom ua ke los ntawm Yamaguchi University, Ehime University, thiab University of Tokyo hauv Nyij Pooj tau tshaj tawm cov lus tshaj tawm hais tias lawv tau tshawb pom ib yam tshiab ntawm cov ntxhia hauv ntiaj teb uas tsis tshua muaj hauv Sanchong Prefecture.Tsis tshua muaj ntiaj tebcov ntsiab lus ua lub luag haujlwm tseem ceeb hauv kev hloov pauv cov kev lag luam ib txwm muaj thiab txhim kho high-tech teb.Cov ntxhia tshiab tau pom nyob rau hauv roob ntawm Ise City, Sanchong Prefecture thaum lub Plaub Hlis 2011, thiab yog ib hom tshwj xeeb ntawm cov xim av epidote uas muajtsawg ntiaj teb lanthanumthiab tsis tshua muaj hlau vanadium.Thaum Lub Peb Hlis 1, 2013, cov pob zeb no tau lees paub tias yog cov pob zeb tshiab los ntawm International Association of Mineralogy thiab hu ua "lanthanum vanadium limonite".
Yam ntxwv ntawmtsawg ntiaj tebminerals thiab ore morphology
General yam ntxwv ntawmtsawg ntiaj tebcov ntxhia
1, Qhov tsis muaj sulfides thiab sulfates (tsuas yog ob peb lwm tus) qhia tias lub ntiaj teb tsis tshua muaj cov pa oxygen affinity
2,Tsis tshua muaj ntiaj tebsilicates feem ntau yog cov kob zoo li, tsis muaj txheej, lub moj khaum zoo li, lossis cov saw zoo li cov qauv;
3. Ib cotsawg ntiaj tebminerals (tshwj xeeb tshaj yog complex oxides thiab silicates) nthuav tawm amorphous xeev;
4. Kev faib tawm ntawmtsawg ntiaj tebCov zaub mov tseem ceeb yog tsim los ntawm silicates thiab oxides hauv cov pob zeb magmatic thiab pegmatites, thaum fluorocarbonates thiab phosphates feem ntau muaj nyob rau hauv hydrothermal thiab weathered crust deposits;Feem ntau ntawm cov minerals nplua nuj nyob rau hauv yttrium muaj nyob rau hauv granite xws li pob zeb thiab lwm yam pegmatites, gas-tsim hydrothermal deposits, thiab hydrothermal deposits;
5,Tsis tshua muaj ntiaj tebcov ntsiab lus feem ntau coexist nyob rau hauv tib lub ntxhia vim lawv cov qauv atomic zoo sib xws, tshuaj lom neeg thiab siv lead ua cov khoom.Ntawd yog,ceriumthiabyttrium tsawg ntiaj tebcov ntsiab lus feem ntau coexist nyob rau hauv tib lub ntxhia, tab sis cov ntsiab lus no tsis coexist nyob rau hauv sib npaug.Qee cov minerals feem ntau yog tsim los ntawmcerium tsawg ntiaj tebcov ntsiab lus, thaum lwm tus yog tsim los ntawmyttrium.
Qhov tshwm sim ntawm lub xeevtsawg ntiaj tebcov ntsiab lus hauv cov zaub mov
Hauv qhov xwm txheej,tsawg ntiaj tebcov ntsiab lus yog enriched nyob rau hauv granite, alkaline pob zeb, alkaline ultrabasic pob zeb, thiab lwm yam mineral deposits.Muaj peb lub xeev tseem ceeb ntawm qhov tshwm sim ntawmtsawg ntiaj tebcov ntsiab lus nyob rau hauv cov zaub mov raws li cov ntxhia siv lead ua tshuaj ntsuam xyuas.
(1)Tsis tshua muaj ntiaj tebcov ntsiab lus koom nrog hauv lattice ntawm cov zaub mov thiab tsim ib qho tseem ceeb ntawm cov zaub mov.Hom pob zeb no feem ntau hu ua cov ntxhia hauv ntiaj teb tsawg.Monazite (REPO4) thiab bastnaesite ([La, Ce] FCO3) txhua tus nyob hauv pawg no.
(2)Tsis tshua muaj ntiaj tebCov ntsiab lus yog dispersed nyob rau hauv cov minerals nyob rau hauv daim ntawv ntawm isomorphic hloov ntawm cov ntsiab lus xws li Ca, Sr, Ba, Mn, Zr, thiab lwm yam.tsawg ntiaj tebcov ntsiab lus nyob rau hauv feem ntau cov minerals yog tsawg.muajTsis tshua muaj ntiaj tebfluorite thiab apatite yog nyob rau hauv pawg no.
(3)Tsis tshua muaj ntiaj tebcov ntsiab lus muaj nyob rau saum npoo los yog nruab nrab ntawm cov khoom ntawm qee yam minerals hauv lub xeev ionic adsorption.Hom pob zeb no belongs rau weathering crust leaching hom ntxhia, thiab tsawg lub ntiaj teb ions yog adsorbed ntawm cov ntxhia thiab niam txiv pob zeb ntawm cov pob zeb ua ntej huab cua.
Hais txog.Cov ntsiab lus nruab nrab ntawmtsawg ntiaj tebcov ntsiab lus nyob rau hauv lub crust yog 165.35 × 10-6 (Li Tong, 1976).Hauv qhov xwm txheej,tsawg ntiaj tebcov ntsiab lus mas muaj nyob rau hauv daim ntawv ntawm ib tug minerals, thiabtsawg ntiaj tebminerals thiab minerals uas muajtsawg ntiaj tebcov ntsiab lus uas tau pom nyob rau hauv lub ntiaj teb no
Muaj ntau tshaj 250 hom tshuaj, suav nrogtsawg ntiaj tebCov ntsiab lus Σ Muaj 50-65 hom minerals uas tsis tshua muaj hauv ntiaj teb nrog REE> 5.8%, uas tuaj yeem suav tias yog kev ywj pheejtsawg ntiaj tebcov ntxhia.Qhov tseem ceebtsawg ntiaj tebminerals feem ntau yog fluorocarbonate thiab phosphate.
Ntawm ntau tshaj 250 homtsawg ntiaj tebminerals thiab minerals uas muajtsawg ntiaj tebcov ntsiab lus uas tau tshawb pom, tsuas muaj ntau tshaj 10 cov khoom lag luam tsim nyog rau cov xwm txheej metallurgical tam sim no.
Post lub sij hawm: Nov-03-2023