I-Cerium oxide, Ifomula ye-molecular ithiCeO2, isibizo sesiShayina:I-Cerium(IV) i-oxide, isisindo samangqamuzana: 172.11500.Ingasetshenziswa njengezinto zokupholisha, i-catalyst, catalyst carrier (umsizi), i-ultraviolet absorber, i-fuel cell electrolyte, i-absorber exhaust yezimoto, i-Electroceramics, njll.
Impahla yamakhemikhali
Ezingeni lokushisa lika-2000 ℃ kanye nokucindezela kwe-MPa engu-15, i-Cerium(III) oxide ingatholwa ngokunciphisa i-hydrogen ye-cerium oxide.Uma izinga lokushisa likhululekile ku-2000 ℃, futhi ingcindezi imahhala ku-5 MPa, i-cerium oxide iba phuzi kancane, ibomvu kancane, futhi ibomvana.
Impahla ebonakalayo
Imikhiqizo emsulwa iyimpushana esindayo emhlophe noma amakristalu ayi-cubic, kuyilapho imikhiqizo engahlanzekile iphuzi ngokukhanyayo noma ibomvana kuya kokubomvu ngokubomvu (ngenxa yokuba khona kwenani elincane le-lanthanum, i-praseodymium, njll.).
Ukuminyana 7.13g/cm3, indawo encibilikayo 2397 ℃, indawo abilayo 3500 ℃.
Ayincibiliki emanzini ne-alkali, incibilika kancane ku-asidi.
Ubuthi, umthamo obulalayo weMedian (igundane, ngomlomo) cishe u-1g/kg.
Indlela yokukhiqiza
Indlela yokukhiqiza ye-cerium oxide ngokuyinhloko i-oxalic acid precipitation, okungukuthi, ukuthatha isixazululo se-cerium chloride noma i-Cerium nitrate njengento eluhlaza, ukulungisa inani le-Ph libe ngu-2 nge-oxalic acid, ukwengeza i-ammonia ukuze kuncishiswe i-Cerium oxalate, ukushisa, ukuvuthwa, ukuhlukanisa, ukuwasha. , omiswe ku-110 ℃, futhi ashise ku-900 ~ 1000 ℃ ukwenza i-cerium oxide.
I-CeCl2+H2C2O4+2NH4OH → CeC2O4+2H2O+2NH4Cl
Isicelo
Ama-oxidizing agents.Ama-Catalysts we-Organic reaction.Sebenzisa amasampula ajwayelekile ensimbi yomhlaba ukuze uhlaziye insimbi.Ukuhlaziywa kwe-redox titration.Ingilazi eguquliwe.I-sunshade yengilazi yoqweqwe lwawo.Ingxubevange ekwazi ukumelana nokushisa.
Isetshenziswa njengesengezo embonini yengilazi, njengento yokugaya ingilazi yepuleti, futhi nanjenge-ejenti engazweli kwi-UV ezimonyoni.Njengamanje, iye yanwetshwa ekugayweni kwezingilazi, amalensi okubona, namashubhu ezithombe, idlala indima ekushintsheni umbala, ukucacisa, ukumuncwa kwengilazi ye-UV, kanye nokumuncwa kwemigqa kagesi.
Umthelela wokupholisha umhlaba ongavamile
Impushana yokupholisha umhlaba engavamile inezinzuzo zejubane lokupholisha ngokushesha, ukushelela okuphezulu, nempilo ende yesevisi.Uma kuqhathaniswa ne-powder yokupholisha yendabuko - i-iron powder ebomvu, ayingcolisi imvelo futhi kulula ukuyisusa entweni enamathelayo.Ukupholisha ilensi nge-cerium oxide polishing powder kuthatha umzuzu owodwa ukuqeda, kuyilapho ukusebenzisa i-iron oxide polishing powder kuthatha imizuzu engu-30-60.Ngakho-ke, impushana yokupholisha umhlaba engavamile inezinzuzo zomthamo ophansi, isivinini sokupholisha ngokushesha, nokusebenza kahle kokupholisha.Futhi ingashintsha ikhwalithi yokupholisha kanye nendawo yokusebenza.Ngokuvamile, impushana yokupholisha ingilazi yomhlaba engavamile ikakhulukazi isebenzisa ama-oxide acebile e-cerium.Isizathu sokuthi kungani i-cerium oxide iyinhlanganisela esebenza ngempumelelo yokupholisha ingoba ingapholisha ingilazi ngesikhathi esisodwa kukho kokubili ukubola kwamakhemikhali kanye nokungqubuzana komshini.Impushana yokupholisha i-cerium yomhlaba engavamile isetshenziswa kakhulu ukupholisha amakhamera, amalensi ekhamera, amashubhu kamabonakude, izibuko, njll. Njengamanje, kunenqwaba yezimboni zempushana zokupholisha umhlaba ezingavamile e-China, ezinesilinganiso sokukhiqiza esingaphezu kwamathani ayishumi.I-Baotou Tianjiao Qingmei Rare Earth Polishing Powder Co., Ltd., ibhizinisi elihlanganyelwe lakwa-Sino langaphandle, njengamanje ingelinye lamafekthri amakhulu ayivelakancane okupholisha umhlaba e-China, enamandla okukhiqiza minyaka yonke angamathani angu-1200 kanye nemikhiqizo ethengiswa kuleli nasemazweni angaphandle.
I-Glass decolorization
Yonke ingilazi iqukethe i-iron oxide, engalethwa engilazini ngezinto ezingavuthiwe, isihlabathi, i-limestone, nengilazi ephukile ezithakweni zengilazi.Kunezinhlobo ezimbili zobukhona bawo: eyodwa iyi-divalent iron, ephendula umbala wengilazi ube luhlaza okwesibhakabhaka okumnyama, kanti enye iyi-iron trivalent, ephendula umbala wengilazi ube ophuzi.I-Divalent iron ion iyi-oxidation ye-oxidation ye-iron eyi-trivalent, ngoba amandla ombala we-iron e-trivalent ayingxenye eyodwa kweshumi kuphela ye-divalent iron.Bese wengeza i-toner ukuze unciphise umbala kumbala oluhlaza okhanyayo.
Izakhi zomhlaba ezingavamile ezisetshenziselwa ingilazi decolorization ikakhulukazi i-cerium oxide ne-neodymium oxide.Ukushintsha i-ejenti emhlophe yokuqeda umbala ye-arsenic nge-ejenti engavamile yokuqeda umbala wengilazi yomhlaba akuthuthukisi nje ukusebenza kahle, kodwa futhi kugwema ukungcoliswa kwe-arsenic emhlophe.I-cerium oxide esetshenziselwa ukususwa kombala kwengilazi inezinzuzo ezifana nokusebenza okuzinzile kwezinga lokushisa eliphezulu, intengo ephansi, futhi akukho ukumuncwa kokukhanya okubonakalayo.
Umbala wengilazi
Ama-ion omhlaba ayivelakancane anemibala ezinzile futhi ekhanyayo emazingeni okushisa aphezulu, futhi asetshenziselwa ukuxubana nezinto zokwakha izibuko ezinemibala ehlukahlukene.Ama-oxide omhlaba angavamile njenge-neodymium, i-praseodymium, i-erbium, ne-cerium ayimibalabala yengilazi enhle kakhulu.Lapho ingilazi ekhanyelayo enombala ongavamile womhlaba idonsa ukukhanya okubonakalayo okunobude bamaza asukela kuma-nanometer angu-400 kuya kwangu-700, iveza imibala emihle.Lezi zingilazi ezinemibala zingasetshenziswa ukwenza izibani zezibani zenkomba zokuhamba kwezindiza nokuhamba, izimoto ezihlukahlukene zokuhamba, kanye nemihlobiso ehlukahlukene yobuciko ephezulu.
Uma i-neodymium oxide yengezwa engilazini ye-sodium calcium kanye nengilazi Yokuhola, umbala wengilazi uncike ekushubeni kwengilazi, okuqukethwe kwe-neodymium kanye nokuqina komthombo wokukhanya.Ingilazi ezacile inombala opinki okhanyayo, futhi ingilazi ewugqinsi inobunsomi okwesibhakabhaka.Lesi simo sibizwa nge-neodymium dichroism;I-Praseodymium oxide ikhiqiza umbala oluhlaza ofana ne-chromium;I-Erbium(III) oxide inombala opinki uma isetshenziswa engilazini ye-Photochromism nengilazi eyikristalu;Inhlanganisela ye-cerium oxide ne-titanium dioxide yenza ingilazi ibe phuzi;I-Praseodymium oxide ne-neodymium oxide ingasetshenziselwa ingilazi emnyama ye-praseodymium neodymium.
Isicacisi somhlaba esingavamile
Ukusebenzisa i-cerium oxide esikhundleni se-arsenic oxide yendabuko njenge-ejenti yokucacisa ingilazi ukuze kukhishwe amabhamuza futhi kulandele izakhi ezinemibala kunomthelela omkhulu ekulungiseni amabhodlela engilazi angenambala.Umkhiqizo oqediwe une-crystal fluorescence emhlophe, ukukhanya okuhle, namandla engilazi athuthukisiwe nokumelana nokushisa.Ngesikhathi esifanayo, iphinde iqede ukungcoliswa kwe-arsenic emvelweni nasengilazini.
Ngaphezu kwalokho, ukwengeza i-cerium oxide engilazini yansuku zonke, njengengilazi yokwakha neyezimoto, ingilazi yekristalu, kunganciphisa ukudluliswa kokukhanya kwe-ultraviolet, futhi lokhu kusetshenziswa kuye kwakhuthazwa eJapane nase-United States.Ngokuthuthuka kwezinga lempilo eChina, kuzoba nemakethe enhle.Ukwengeza i-neodymium oxide egobolondweni lengilazi leshubhu lesithombe kungaqeda ukuhlakazeka kokukhanya okubomvu futhi kukhulise ukucaca.Izibuko ezikhethekile ezinezengezo zomhlaba ezingavamile zihlanganisa ingilazi ye-lanthanum, enenkomba ephezulu ye-refractive kanye nezici eziphansi zokuhlakazeka, futhi isetshenziswa kabanzi ekukhiqizeni ama-lens ahlukahlukene, amakhamera athuthukile, namalensi ekhamera, ikakhulukazi kumadivayisi wezithombe eziphakeme kakhulu;Ingilazi yokuvikela imisebe ye-Ce, esetshenziselwa ingilazi yemoto kanye negobolondo lengilazi ye-TV;Ingilazi ye-Neodymium isetshenziswa njengezinto ze-laser futhi iyinto efanelekile kakhulu yama-laser amakhulu, ikakhulukazi asetshenziselwa amadivayisi alawulwayo we-Nuclear Fusion.
Isikhathi sokuthumela: Jul-06-2023