Cerium carbonate yog ib qho inorganic compound tsim los ntawm reacting cerium oxide nrog carbonate. Nws muaj kev ruaj ntseg zoo heev thiab tshuaj lom neeg tsis muaj zog thiab tau siv dav hauv ntau yam haujlwm xws li nuclear zog, catalysts, pigments, iav, thiab lwm yam. Raws li cov ntaub ntawv tshawb fawb kev lag luam, lub ntiaj teb cerium carbonate kev ua lag luam tau mus txog $ 2.4 billion hauv 2019 thiab tau npaj kom ncav cuag. $ 3.4 billion los ntawm 2024. Muaj peb txoj hauv kev tsim khoom tseem ceeb rau cerium carbonate: tshuaj lom neeg, lub cev, thiab lom. Ntawm cov txheej txheem no, cov txheej txheem tshuaj feem ntau yog ua haujlwm vim nws cov nqi tsim khoom tsawg; Txawm li cas los xij, nws tseem ua rau muaj kev nyuaj siab ib puag ncig. Kev lag luam cerium carbonate nthuav tawm qhov kev loj hlob loj thiab muaj peev xwm tab sis yuav tsum tau tawm tsam kev nce qib kev siv tshuab thiab kev tiv thaiv ib puag ncig. UrbanMines Tech. Co., Ltd., ib lub tuam txhab ua lag luam nyob hauv Suav teb tshwj xeeb hauv kev tshawb fawb & kev tsim kho nrog rau kev tsim khoom & muag cov khoom lag luam cerium carbonate lub hom phiaj los txhawb kev lag luam kev loj hlob los ntawm kev txawj ntse tseem ceeb ntawm kev tiv thaiv ib puag ncig thaum siv cov kev ntsuas ua tau zoo intelligently. Pab pawg UrbanMines 'R & D tau sau tsab xov xwm no los teb rau peb cov neeg siv khoom cov lus nug thiab kev txhawj xeeb.
1.Cerium carbonate siv rau dab tsi? Dab tsi yog kev siv ntawm cerium carbonate?
Cerium carbonate yog cov khoom sib xyaw ua ke ntawm cerium thiab carbonate, feem ntau siv hauv cov khoom siv catalytic, cov ntaub ntawv luminescent, cov ntaub ntawv polishing, thiab tshuaj reagents. Nws cov chaw thov tshwj xeeb suav nrog:
(1) Cov ntaub ntawv tsis tshua muaj lub ntiaj teb luminescent: High-purity cerium carbonate ua cov khoom siv tseem ceeb rau kev npaj cov ntaub ntawv tsis tshua muaj lub ntiaj teb luminescent. Cov ntaub ntawv luminescent no pom kev siv dav hauv cov teeb pom kev zoo, zaub, thiab lwm yam, muab kev txhawb nqa tseem ceeb rau kev nce qib ntawm kev lag luam hluav taws xob niaj hnub no.
(2) Lub tsheb cav tso pa purifiers: Cerium carbonate yog ua haujlwm hauv kev tsim tsheb tso pa purification catalysts uas txo cov pa phem tawm ntawm lub tsheb thiab ua lub luag haujlwm tseem ceeb hauv kev txhim kho huab cua zoo.
(3) Polishing cov ntaub ntawv: Los ntawm kev ua raws li ib tug additive nyob rau hauv polishing tebchaw, cerium carbonate txhim khu lub brightness thiab smoothness ntawm ntau yam khoom.
(4) Coloured engineering plastics: Thaum siv los ua cov xim xim, cerium carbonate muab cov xim tshwj xeeb thiab cov khoom rau engineering plastics.
(5) Chemical Catalysts: Cerium carbonate pom cov ntawv thov dav siv los ua cov tshuaj catalyst los ntawm kev txhim kho cov haujlwm catalyst thiab kev xaiv thaum txhawb cov tshuaj tiv thaiv.
(6) Tshuaj reagents thiab daim ntawv thov kev kho mob: Ntxiv nrog rau nws siv raws li ib tug tshuaj reagent, cerium carbonate tau qhia nws tus nqi nyob rau hauv kev kho mob teb xws li hlawv qhov txhab kho mob.
(7) Cemented carbide additives: Qhov sib ntxiv ntawm cerium carbonate rau cemented carbide alloys txhim kho lawv cov tawv tawv thiab hnav tsis kam.
(8) Ceramic Kev Lag Luam: Kev lag luam ceramic siv cerium carbonate ua ib qho ntxiv los txhim kho cov yam ntxwv ntawm kev ua tau zoo thiab cov tsos zoo ntawm ceramics.
Hauv cov ntsiab lus, vim nws cov khoom tshwj xeeb thiab ntau yam kev siv thoob plaws ntau yam kev lag luam, cerium carbonates ua si tsis zoo.
2. Cov xim ntawm cerium carbonate yog dab tsi?
Cov xim ntawm cerium carbonate yog dawb, tab sis nws cov purity yuav cuam tshuam me ntsis rau cov xim tshwj xeeb, uas ua rau muaj xim daj me ntsis.
3. Dab tsi yog 3 hom kev siv cerium?
Cerium muaj peb hom kev siv:
(1) Nws yog siv los ua co-catalyst nyob rau hauv lub tsheb tso pa purification catalysts los tswj cov pa oxygen cia muaj nuj nqi, txhim khu catalyst kev ua tau zoo, thiab txo cov kev siv cov khoom muaj nqi hlau. Cov catalyst no tau siv dav hauv tsheb, zoo txo cov pa phem los ntawm lub tsheb tso pa tawm mus rau ib puag ncig.
(2) Nws ua hauj lwm raws li ib tug additive nyob rau hauv optical iav kom nqus tau ultraviolet thiab infrared rays. Nws pom kev siv dav hauv tsheb iav, muab kev tiv thaiv UV rays thiab txo lub tsheb sab hauv kub, yog li txuag hluav taws xob rau lub hom phiaj cua txias. Txij li thaum xyoo 1997, cerium oxide tau muab tso rau hauv tag nrho cov iav tsheb Japanese thiab tseem siv dav hauv Tebchaws Meskas.
(3) Cerium tuaj yeem muab ntxiv ua ib qho ntxiv rau NdFeB cov khoom siv hlau nplaum ruaj khov los txhim kho lawv cov khoom sib nqus thiab ruaj khov. Cov ntaub ntawv no tau siv dav hauv cov tshuab hluav taws xob thiab hluav taws xob xws li lub cev muaj zog thiab cov tshuab hluav taws xob, txhim kho cov cuab yeej siv tau zoo thiab kev ua haujlwm zoo.
4. cerium ua dab tsi rau lub cev?
Cov teebmeem ntawm cerium ntawm lub cev feem ntau cuam tshuam nrog hepatotoxicity thiab osteotoxicity, nrog rau cov muaj feem cuam tshuam rau lub paj hlwb optic. Cerium thiab nws cov tebchaw ua rau muaj kev puas tsuaj rau tib neeg epidermis thiab optic paj hlwb, nrog rau qhov tsawg kawg nkaus nqus pa ua rau muaj kev pheej hmoo ntawm kev xiam oob khab lossis muaj kev phom sij rau lub neej. Cerium oxide yog tshuaj lom rau tib neeg lub cev, ua rau muaj kev puas tsuaj rau daim siab thiab pob txha. Hauv lub neej txhua hnub, nws yog ib qho tseem ceeb uas yuav tsum tau ceev faj kom raug thiab tsis txhob nqus cov tshuaj.
Tshwj xeeb, cerium oxide tuaj yeem txo cov ntsiab lus prothrombin ua rau nws tsis ua haujlwm; inhibit thrombin tiam; precipitate fibrinogen; thiab catalyze phosphate compound decomposition. Ntev ntev raug rau cov khoom uas muaj cov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem ua rau mob siab thiab pob txha pob txha.
Tsis tas li ntawd, polishing hmoov uas muaj cerium oxide lossis lwm yam tshuaj tuaj yeem nkag mus rau hauv lub ntsws ncaj qha los ntawm kev nqus pa ua pa ua rau lub ntsws tso tawm uas tuaj yeem ua rau silicosis. Txawm hais tias radioactive cerium muaj qhov nqus tag nrho hauv lub cev, cov menyuam mos muaj feem ntau ntawm 144Ce nqus hauv lawv cov plab hnyuv. Radioactive cerium feem ntau accumulates nyob rau hauv daim siab thiab cov pob txha thaum lub sij hawm.
5. yogcerium carbonatesoluble hauv dej?
Cerium carbonate yog insoluble hauv dej tab sis soluble hauv acidic daws. Nws yog ib qho chaw ruaj khov uas tsis hloov thaum raug huab cua tab sis tig dub nyob rau hauv lub teeb ultraviolet.
6.Yog cerium nyuaj los yog mos?
Cerium yog ib qho mos, silvery-dawb tsis tshua muaj lub ntiaj teb hlau uas muaj tshuaj lom neeg reactivity thiab ib qho kev ntxhib los mos uas tuaj yeem txiav nrog rab riam.
Lub cev lub cev ntawm cerium kuj txhawb nws qhov muag muag. Cerium muaj cov ntsiab lus melting ntawm 795 ° C, qhov kub ntawm 3443 ° C, thiab qhov ntom ntawm 6.67 g / mL. Tsis tas li ntawd, nws hloov xim thaum raug huab cua. Cov khoom no qhia tau hais tias cerium yog qhov tseeb ntawm cov hlau mos thiab ductile.
7. Cerium oxidise dej puas tuaj yeem?
Cerium muaj peev xwm ntawm oxidizing dej vim nws cov tshuaj reactivity. Nws reacts maj mam nrog dej txias thiab sai nrog dej kub, uas ua rau tsim ntawm cerium hydroxide thiab hydrogen gas. Tus nqi ntawm cov tshuaj tiv thaiv no nce hauv dej kub piv rau cov dej txias.
8. Puas yog cerium tsawg?
Yog lawm, cerium yog suav tias yog ib qho khoom tsis tshua muaj vim nws muaj kwv yees li 0.0046% ntawm lub ntiaj teb crust, ua rau nws yog ib qho ntawm ntau tshaj plaws ntawm lub ntiaj teb tsis tshua muaj.
9. Puas yog cerium yog kua lossis roj?
Cerium muaj nyob rau hauv cov khoom ntawm chav tsev kub thiab siab. Nws zoo nkaus li nyiaj-grey reactive hlau uas muaj ductility thiab softer dua hlau. Txawm hais tias nws tuaj yeem hloov mus rau hauv cov kua hauv cov cua sov, ntawm qhov xwm txheej ib txwm (chav kub thiab siab), nws tseem nyob hauv nws lub xeev ruaj khov vim nws cov ntsiab lus melting ntawm 795 ° C thiab boiling point ntawm 3443 ° C.
10. Cerium zoo li cas?
Cerium nthuav tawm cov tsos ntawm cov nyiaj-grey reactive hlau teej tug mus rau pawg ntawm lub ntiaj teb tsis tshua muaj ntsiab (REEs). Nws cov cim tshuaj yog Ce thaum nws tus lej atomic yog 58. Nws tuav qhov sib txawv ntawm kev ua ib qho ntawm ntau tshaj REEs.Ceriu hmoov muaj siab reactivity rau huab cua ua rau spontaneous combustion, thiab kuj yooj yim yaj nyob rau hauv acids. Nws ua hauj lwm raws li ib tug zoo heev txo tus neeg sawv cev feem ntau siv rau alloy ntau lawm.
Cov khoom siv lub cev muaj xws li: qhov ntom ntom ntawm 6.7-6.9 nyob ntawm cov qauv siv lead ua; melting point sawv ntawm 799 ℃ thaum boiling point mus txog 3426 ℃. Lub npe "cerium" los ntawm lo lus Askiv "Ceres", uas yog hais txog lub hnub qub. Cov ntsiab lus feem pua hauv ntiaj teb lub pob zeb yog kwv yees li 0.0046%, ua rau nws muaj ntau heev ntawm REEs.
Ceriu feem ntau tshwm sim hauv monazite, bastnaesite, thiab fission khoom muab tau los ntawm uranium-thorium plutonium. Hauv kev lag luam, nws pom cov ntawv dav dav xws li kev tsim cov khoom siv hluav taws xob siv hluav taws xob.