Extraction, npaj thiab nyab xeeb cia ntawmGadolinium oxide (gd₂o₃)yog qhov tseem ceeb ntawm kev ua kom tsis tshua muaj lub ntiaj teb hauv ntiaj teb. Cov hauv qab no yog cov ncauj lus qhia ntxaws ntxaws:
, Rho tawm txoj kev ntawm gadolinium oxide
Gadolinium oxide feem ntau yog muab rho tawm los ntawm lub ntiaj teb tsis tshua muaj gadolinium, nquag ores suav nrog monazite thiab bastnäsite. Cov txheej txheem rho tawm tsuas yog suav nrog cov kauj ruam hauv qab no:
1.Rore decomposition:
Lub ntiaj teb tsis tshua muaj decomposed los ntawm cov kua qaub lossis alkaline.
Txheej txheem acid: kho lub ore nrog cov pa roj acid lossis hydrochloric acid lossis hydrochloric acid los yog hydrochloric acid los hloov lub ntiaj teb tsis tshua muaj ntsev.
Txoj Kev Alkaline: Siv sodium hydroxide lossis poov tshuaj hydrochodide kom yaj cov ore ntawm qhov siab hloov pauv lub ntiaj teb tsis tshua muaj txiaj ntsig rau hauv hydroxides.
2.Qhov chaw sib cais hauv ntiaj teb:
Cais cov gadolinium los ntawm kev sib xyaw ntawm cov kev daws teeb meem tsis tshua muaj kev daws teeb meem los ntawm cov kuab kev rho tawm lossis ion pauv.
Cov kuab tshuaj rho tawm cov txheej txheem: Siv cov kuab tshuaj organic (xws li Tributyl phosphate) rau xaiv cov gadolinium ions.
Ion Txauv Txoj Kev: Siv ion pauv pauv resin cais gadolinium ions.
3.purification ntawm gadolinium:
Los ntawm ntau cov kev rho tawm lossis ion sib pauv, lwm lub ntiaj teb tsis tshua muaj zog kom tau txais cov pa roj av siab (xws li gadolinium chloride lossis gadolinium nitrate).
4.ConVersion rau Gadolinium oxide:
Lub lim dej gadolinium (xws li gadolinium nitrate lossis gadolinium oxalate) yog calced ntawm kub kom decompose thiab tsim gadolinium oxide.
Cov piv txwv piv txwv: 2 gd (No₃) ₃ → gd₂o₃ + 6 nou + 3/2 o₂
二, npaj txoj kev ntawm gadolinium oxide
1.Qhov ntsuas kub kho txoj kev ua haujlwm:
Caladolinium cov ntsev (xws li gadolinium nitrate, gadolinium oxalate lossis gadolinium carbonate) ntawm qhov kub thiab txias (saum 800 ° C) kom decompose thiab tsim gadolinium oxide.
Qhov no yog qhov kev npaj xaiv tau feem ntau yog tsim nyog thiab tsim nyog rau ntau qhov kev tsim khoom loj.
2.hydrothermal txoj kev:
Gadolinium oxide nanoparticles yog tsim los ntawm reacting gadolinium ntsev nrog alkaline cov kev daws teeb meem hauv qab cov kev mob siab thiab siab hydrothermal.
Hom qauv no tuaj yeem npaj cov kab mob siab Gadolinium oxide nrog cov khaub noom uniform me me.
3.Sol-gel txoj kev:
Gadolinium ntsev tau muab tov nrog cov organic ua ntej (xws li citric acid) los ua tus sol, uas yog tom qab ntawd gaded, qhuav kom tau txais gadolinium oxide.
Hom no yog qhov tsim nyog rau npaj nano-teev gadolinium oxide hmoov.
三, Kev khaws cia kom nyab xeeb ntawm Gadolinium oxide
Gadolinium oxide yog qhov ruaj khov nyob rau hauv chav tsev sov, tab sis cov neeg khaws cia nram qab no yuav tsum tau sau tseg los xyuas kom muaj kev nyab xeeb thiab kev ua tau zoo:
1.Moisture-pov thawj:
Gadolinium oxide muaj qee qhov kev hygroscopicity thiab yuav tsum muab cia rau hauv ib puag ncig qhuav kom tsis txhob sib cuag nrog ya raws.
Nws raug nquahu kom siv lub thawv ntim kaw thiab ntxiv cov desiccant (xws li Silica Gel).
2. Ua pov thawj-pov thawj:
Gadolinium oxide yog rhiab rau lub teeb, thiab ntev raug rau lub teeb muaj zog yuav cuam tshuam nws qhov kev ua tau zoo.
Yuav tsum muab cia rau hauv qhov chaw txias, tsaus.
3.Temperatature tswj:
Qhov ntsuas kub cia yuav tsum tau tswj nyob rau hauv ntau ntawm chav sov (15-25 ° C), zam kev muaj dej siab lossis ib puag ncig ntau.
Kev ntsuas kub siab yuav ua rau cov qauv hloov pauv hauv gadolinium oxide, thiab cov kub tsawg yuav ua rau kev hygroscopicity.
4.Sov cheem nrog acid:
Gadolinium oxide yog ib qho alkaline oxide thiab yuav hnov mob ua nruj ua tsiv nrog kua qaub.
Khaws kom deb ntawm cov tshuaj acidic thaum lub sij hawm cia.
5.Qhov plua plav:
Gadolinium oxide hmoov yuav ua rau muaj kev npau taws rau cov pa thiab tawv nqaij.
Siv cov thawv ntim khoom thaum khaws cia thiab hnav cov khoom tiv thaiv (xws li lub ntsej muag thiab hnab looj tes) thaum kov.
IV. Cov kev ceev faj
1.toxicity:Gadolinium oxide nws tus kheej yog tsawg hauv kev lom zem, tab sis nws cov hmoov av uas yuav ua rau lub pa ua pa thiab tawv nqaij, yog li kev sib chwv.
2.WASE Pov Tseg:Khib gadolinium ox yuav tsum tau siv los yog kho raws li cov tshuaj lom neeg kov cov kev cai kom tsis txhob muaj kuab paug ib puag ncig.
Los ntawm cov kev tshem tawm saum toj no, kev npaj khoom, cov khoom siv zoo rau kev ua kom tau zoo thiab ruaj khov rau cov khoom siv sib nqus, cov khoom siv kho mob, thiab lwm yam kev kho mob, thiab lwm yam.
Lub Sijhawm Post: Feb-28-2025