Praseodymium oxide,fua mole molePr6O11, mamafa mole 1021.44.
E mafai ona faʻaaogaina i tioata, metallurgy, ma o se faʻaopoopoga mo le paʻu felafolafoaʻi.Praseodymium oxide o se tasi o oloa taua i le malamalamaoloa tau seasea.
Ona o lona tulaga faʻapitoa faʻaletino ma vailaʻau, ua faʻaaogaina lautele i fanua e pei o ceramics, tioata, maneta tumau tumau, faʻamaʻi faʻafefe o le eleele, paʻu faʻalelei eleele, mea e olo ai, ma faʻaopoopoga, faʻatasi ai ma faʻamoemoega manuia.
Talu mai le vaitau o le 1990, o le gaosiga o tekinolosi a Saina ma meafaigaluega mo le praseodymium oxide ua faʻaleleia atili ma faʻaleleia atili, faʻatasi ai ma le televave o oloa ma le faʻatupulaia o oloa.E le gata e mafai ona ausia le tele o talosaga i totonu o le atunuʻu ma manaʻoga maketi, ae o loʻo i ai foi le tele o faʻatau atu.O le mea lea, o le gaosiga o tekonolosi a Saina i le taimi nei, oloa ma gaosiga o le praseodymium oxide, faʻapea foʻi ma le manaʻoga mo le tuʻuina atu i maketi i totonu ma fafo, o loʻo i luga o le pisinisi tutusa i le lalolagi.
Meatotino
Pa'u uliuli, mafiafia 6.88g/cm3, mea liusuavai 2042 ℃, mea fa'apuna 3760 ℃.E le mafai ona solu i le vai, solu i acids e fai ai masima trivalent.Amioga lelei.
Fa'asologa
1. auala vavae ese vailaʻau.E aofia ai le faiga fa'akristilasi vaega, auala fa'asusu ma fa'ama'i.O le mea muamua e tuueseeseina e faavae i luga o le eseesega i le solubility tioata o nitrates eleele seasea.O le tuueseeseina e faavae i luga o le tele o timuga oloa eseese o masima lavelave sulfate eleele.O le vaega mulimuli e tu'ueseeseina e fa'atatau i le fa'ama'iina o le trivalent Pr3+ i le tetravalent Pr4+.O nei metotia e tolu e leʻi faʻaaogaina i gaosiga o fale gaosi oloa ona o le maualalo o le toe faʻaleleia o le eleele, faʻalavelave faʻalavelave, faʻalavelave faigata, maualalo le gaosiga, ma le maualuga o tau.
2. Auala tuueseeseina.E aofia ai faʻalavelave faʻapipiʻi auala vavae ese ma saponification P-507 auala vavae ese.O le mea muamua e faʻaaogaina faʻalavelave faʻalavelave DYPA ma N-263 extractants e aveese ma vavae ese le praseodymium mai le faʻaogaina o le nitric acid o le praseodymium neodymium faʻatamaoaigaina, ma maua ai le Pr6O11 99% fua o le 98%.Ae ui i lea, ona o le faʻalavelave lavelave, maualuga le faʻaaogaina o mea faʻalavelave faʻalavelave, ma le maualuga o tau o oloa, e leʻi faʻaaogaina i gaosiga o pisinisi.O le lua mulimuli o loʻo i ai le faʻaleleia lelei ma le vavaeeseina o le praseodymium ma le P-507, o ia mea uma e lua na faʻaaogaina i le gaosiga o pisinisi.Ae ui i lea, ona o le maualuga o le faʻaogaina o le P-507 o le praseodymium ma le maualuga o le gau o le P-204, o le P-507 faʻaaogaina ma le vavaeeseina o loʻo masani ona faʻaaogaina i le gaosiga o pisinisi.
3. E seasea ona faʻaaogaina le faʻaogaina o le ion i le gaosiga ona o le umi o le faagasologa, faʻalavelave faʻalavelave, ma le maualalo o le gaosiga, ae o le mama o oloa Pr6O11 ≥ 99 5%, maua ≥ 85%, ma o le gaosiga i le iunite o meafaigaluega e matua maualalo lava.
1) Gaosiga o oloa praseodymium oxide e fa'aogaina ai le fa'aogaina o le ion exchange method: fa'aaoga le praseodymium neodymium fa'atamaoaigaina fa'amaoaiga (Pr, Nd) 2Cl3 e fai ma mea mata.Ua saunia i totonu o se vaifofo fafaga (Pr, Nd) Cl3 ma uta i totonu o se koluma adsorption e faʻafefe ai eleele tumu.Pe a tutusa le faʻaogaina o le fofo fafaga o loʻo oʻo mai ma le faʻaogaina o fafo, o le adsorption o eleele e le masani ai e maeʻa ma faʻatali mo le isi gaioiga e faʻaaoga.A maeʻa ona faʻapipiʻiina le koluma i le resini cationic, e faʻaaogaina le vaifofo CuSO4-H2SO4 e tafe i totonu o le koluma e saunia ai se koluma vavae ese o le eleele Cu H + mo le faʻaaogaina.A maeʻa ona faʻafesoʻotaʻi le tasi koluma adsorption ma koluma vavaeese e tolu i le faasologa, faʻaaoga le EDT A (0 015M) Faʻafefe mai le pito i totonu o le koluma muamua adsorption mo le vavaeeseina o le elution (leaching rate 1 2cm/min). o le koluma vavae lona tolu i le taimi o le vavae ese, e mafai ona aoina e se tagata e taliaina ma togafitia faʻamaʻi ina ia maua ai le Nd2O3. A maeʻa ona vavae ese le neodymium i le koluma vavae ese, e aoina le vaifofo mama PrCl3 i le fafo o le koluma vavae ma faʻafefe i togafitiga vailaʻau. e gaosia ai oloa Pr6O11 O le faagasologa autu e faapea: mea mata → saunia o vaifofo fafaga → adsorption o eleele seasea i luga o adsorption koluma → fesoʻotaʻiga o le vavaeina o le koluma → vavaeeseina leaching → aoina o vaifofo mama praseodymium → oxalic acid precipitation → iloa → afifiina.
2) Gaosiga o oloa praseodymium oxide e faʻaaoga ai le P-204 auala faʻapipiʻi: faʻaaogaina le lanthanum cerium praseodymium chloride (La, Ce, Pr) Cl3 e fai ma mea mata.Faafefiloi mea mata i totonu o se vai, saponify P-204, ma faaopoopo kerosene e fai ai se vaifofo aveese.Tu'uese le vai fafaga mai le praseodymium ua aumai i totonu o le tane fa'amanino fa'afefiloi.Ona fufulu lea o mea le mama i le vaega oona, ma faaaoga le HCl e aveese ai le praseodymium e maua ai le vaifofo mama PrCl3.Fa'afefete ile oxalic acid, calcine, ma le afifi e maua ai le praseodymium oxide oloa.O le faagasologa autu e faapea: mea mata → saunia o vaifofo fafaga → P-204 aveesea o le praseodymium → fufulu → lalo acid stripping o praseodymium → mama PrCl3 solution → oxalic acid precipitation → calcination → suʻega → afifiina (praseodymium oxide oloa).
3) Gaosiga o oloa praseodymium oxide e fa'aaoga ai le P507 auala fa'aaogāina: Fa'aaogāina o le cerium praseodymium chloride (Ce, Pr) Cl3 maua mai i le itu i saute o le eleele e seasea maua e pei o mea mata (REO ≥ 45%, praseodymium oxide ≥ 75%).A maeʻa ona faʻapipiʻiina le praseodymium faʻatasi ai ma le fofo fafaga saunia ma le P507 extractant i totonu o le tane faʻapipiʻi, o mea eleelea i le vaega faʻalenatura e fufuluina i le HCl.Mulimuli ane, o le praseodymium e toe aumai i tua ma le HCl e maua ai se vaifofo mama PrCl3.Fa'asao o le praseodymium fa'atasi ma le oxalic acid, calcination, ma le afifiina e maua mai ai oloa o le praseodymium oxide.O le faagasologa autu e faapea: mea mata → saunia o le vaifofo fafaga → aveesea o le praseodymium ma le P-507 → fufuluina le mama → toe aveesea o le praseodymium → mama PrCl3 solution → oxalic acid precipitation → calcination → iloa → afifiina (praseodymium oxide oloa).
4) Gaosiga o oloa praseodymium oxide e faʻaaoga ai le P507 auala faʻapipiʻi: O le lanthanum praseodymium chloride (Cl, Pr) Cl3 maua mai le faʻaogaina o le Sichuan seasea eleele faʻapitoa e faʻaaogaina e avea ma mea mata (REO ≥ 45%, praseodymium oxide 8.05%), ma e saunia i totonu o se vai fafaga.Ona aveese mai lea o le Praseodymium ma le saponified P507 su'esu'e su'esu'e i totonu o se tane su'e, ma o mea leaga i le vaega fa'aola e aveese e le HCl fufulu.Ona fa'aaogaina lea o le HCl mo le fa'aliliuina o le praseodymium e maua ai le vaifofo mama PrCl3.O oloa Praseodymium oxide e maua e ala i le faʻafefeina o le praseodymium ma le oxalic acid, calcining, ma le afifiina.O le faiga autu o le: mea mata → vaifofo mea'ai → P-507 fa'apipi'iina o le praseodymium → fufulu mama → toe fa'aliliuina o le praseodymium → vaifofo mama PrCl3 → oxalic acid precipitation → calcination → su'ega → afifiina (praseodymium oxide oloa).
I le taimi nei, o le faʻagasologa autu o tekinolosi mo le gaosia o oloa praseodymium oxide i Saina o le P507 auala faʻaaogaina e faʻaaoga ai le hydrochloric acid system, lea na faʻaaogaina lautele i le gaosiga o fale gaosi oloa eseese o le eleele e le masani ai tagata taʻitoʻatasi ma ua avea ma tekinolosi faʻagasologa o gaosiga i le tutusa. pisinisi i le lalolagi atoa, fa'avasega i luga.
Fa'aaogāga
1. Fa'aoga ile tioata ole eleele
A maeʻa ona faʻaopoopoina le oxides o le eleele e le masani ai i vaega eseese o tioata, e mafai ona faia lanu eseese o tioata eleelea, e pei o tioata lanumeamata, tioata laser, magneto optical, ma fiber optic tioata, ma o latou talosaga o loʻo faʻalauteleina i lea aso ma lea aso.A maeʻa ona faʻapipiʻi le praseodymium oxide i le tioata, e mafai ona faia se tioata lanu meamata, lea e maualuga lona tau faʻataʻitaʻiga ma e mafai foi ona faʻataʻitaʻi maa taua.O lenei ituaiga tioata e foliga lanumeamata pe a faʻaalia i le susulu masani o le la, ae toetoe a leai se lanu i lalo o le moligao.O le mea lea, e mafai ona faʻaaogaina e fai ai maʻa maʻa faʻatau ma teuteuga taua, faʻatasi ai ma lanu matagofie ma uiga matagofie.
2. Fa'aoga i sima e seasea maua
E mafai ona fa'aogaina mea fa'apipi'i i sima e fai ai le tele o sima e le masani ai i le eleele ma sili atu le fa'atinoga.O le sima lelei eleele e seasea maua i totonu oi latou e fai ma sui.E faʻaaogaina mea faʻapitoa e sili ona filifilia ma faʻaaogaina faigofie e pulea faiga ma faiga faʻagaioiga, lea e mafai ona pulea lelei le tuʻufaʻatasia o ceramics.E mafai ona vaevaeina i ni ituaiga se lua: galuega fa'atino ma maualuga-vevela structural ceramics.A maeʻa ona faʻapipiʻi mea e le masani ai le eleele, e mafai ona latou faʻaleleia le sintering, density, microstructure, ma le vaega faʻatulagaina o ceramics e fetaui ma manaʻoga o talosaga eseese.O le sima tioata e faia i le praseodymium oxide e pei o se lanu e le afaina i le atemosifia i totonu o le ogaumu, o loʻo i ai le lanu mautu, foliga susulu susulu, e mafai ona faʻaleleia mea faʻaletino ma vailaʻau, faʻaleleia le mautu ma le lelei o keramika, faʻateleina lanu eseese, ma faaitiitia tau.A maeʻa ona faʻaopoopoina le praseodymium oxide i pigments sima ma glazes, seasea lalolagi praseodymium samasama, praseodymium lanumeamata, underglaze pigments mumu ma sinasina ghost glaze, lanu samasama nifo elefane, apu lanu meamata poselana, ma isi.O lenei ituaiga porcelain faatufugaga e sili atu lona lelei ma e lelei le auina atu i fafo, lea e lauiloa i fafo.E tusa ai ma faʻamaumauga talafeagai, o le faʻaaogaina o le praseodymium neodymium i le lalolagi e sili atu i le afe tone, ma o se faʻaaogaina tele foi o le praseodymium oxide.O lo'o fa'amoemoe o le a tele atina'e i le lumana'i.
3. Fa'aoga i maneta tumau tumau
Ole maualuga ole maneta malosi oloa (BH) o (Pr, Sm) Co5 maneta tumau m=27MG θ e (216K J/m3). Ma o le (BH) m o PrFeB o 40MG θ E (320K J/m3).O le mea lea, o le fa'aogaina o le Pr gaosia maneta tumau o lo'o i ai pea le fa'aogaina i totonu o alamanuia ma fa'alapotopotoga lautele.
4. Fa'aoga i isi matā'upu e gaosia ai uili e olo ai corundum.
I luga o le faavae o corundum paʻepaʻe, faʻaopoopo e uiga i le 0.25% praseodymium neodymium oxide e mafai ona faia ai se mea e seasea lalolagi corundum olo uili, faʻaleleia atili a latou galuega olo.Faʻateleina le fua faʻatatau ile 30% i le 100%, ma faʻaluaina le ola tautua.O le Praseodymium oxide o loʻo i ai ni mea faʻalelei lelei mo nisi mea, o lea e mafai ai ona faʻaaogaina e fai ma mea faʻalelei mo galuega faʻalelei.O lo'o i ai le tusa ma le 7.5% praseodymium oxide i le cerium fa'avae fa'alelei pa'u ma e fa'aaogaina tele mo le fa'aiila tioata mata, oloa u'amea, tioata mafolafola, ma fa'alava televise.E lelei le aafiaga o le polishing ma o le tele o le talosaga e tele, lea ua avea ma paʻu polesi autu i Saina i le taimi nei.E le gata i lea, o le faʻaogaina o faʻamaʻi faʻamaʻi suauʻu e mafai ona faʻaleleia atili le gaioiga, ma e mafai ona faʻaaogaina e fai ma faʻaopoopoga mo le uʻamea, faʻamamāina uamea uʻamea, ma isi. se ituaiga e tasi o le praseodymium oxide.E fa'apea o le a fa'aauau pea lea tulaga i le lumana'i.
Taimi meli: Me-26-2023