I-Lanthanum oxide,ifomula yamangqamuzanaLa2O3, isisindo samangqamuzana 325.8091. Ikakhulukazi isetshenziselwa ukukhiqiza ingilazi ebonakalayo enembile nemicu yokubona.
Incibilika kancane emanzini futhi incibilika kalula kuma-asidi ukwenza usawoti ohambelanayo.
Ichayeke emoyeni, kulula ukumunca isikhutha namanzi, kancane kancane iphenduke i-lanthanum carbonate.
Ukushai-lanthanum oxideihlanganisa namanzi ukukhulula inani elikhulu lokushisa.
impahla ebonakalayo
Ukubukeka kanye nezakhiwo: Impushana eqinile emhlophe.
Ukuminyana: 6.51 g/mL ku-25 ° C
Iphuzu elincibilikayo: 2315 ° C, indawo abilayo: 4200 ° C
Ukunyibilika: Incibilika kuma-asidi ne-ammonium chloride, engancibiliki emanzini nama-ketone.
Indlela yokukhiqiza
1. Izinto ezisetshenziswayo zendlela yokukhipha iyisisombululo se-nitrate yomhlaba engavamile ngemva kokususwa kwe-cerium, equkethe cishe u-50% La2O3, ukulandelela amanani e-CeO2, 116-7% Pr6O5, kanye no-30% Nd2O3. Kuhlanganiswe ku-Σ Isixazululo se-nitrate yomhlaba engavamile esine-concentration ye-320-330g/L ye-RxOy sakhishwa futhi sahlukaniswa kweminye imihlaba eyivelakancane kusetshenziswa i-neutral phosphine extractant, i-dimethyl heptyl methylphosphonate (P350), ohlelweni lukaphalafini lwe-P350 lwezigaba ezingama-35-38. yokukhipha. Isixazululo esiyinsalela esiqukethe i-lanthanum sancishiswa nge-ammonia, sancipha nge-oxalic acid, sabe sesihlungwa futhi sashiswa ukuze kutholwe umkhiqizo oqediwe we-lanthanum oxide. Ikhishwe ku-lanthanum phosphate cerium ore noma ilungiswe ngokushisa i-lanthanum carbonate noma i-nitrate. Ingabuye itholakale ngokushisa nokubola i-oxalate ye-lanthanum.
2. Beka i-La (OH) 3 ku-platinum crucible, yome ku-200 ℃, shisa ku-500 ℃, futhi ubole ngaphezu kuka-840 ℃ ukuze uthole i-lanthanum oxide.
Isicelo
Ikakhulukazi isetshenziselwa ukukhiqiza ingilazi ebonakalayo enembile nemicu yokubona. Ibuye isetshenziswe embonini ye-elekthronikhi njengama-capacitor e-ceramic kanye nezithasiselo ze-ceramic ze-piezoelectric. Ibuye isetshenziswe njengento eluhlaza ekukhiqizeni i-lanthanum borate futhi njenge-catalyst yokuhlukaniswa kwe-petroleum nokucwengwa.
Inkambu yohlelo lokusebenza: Isetshenziselwa kakhulu ukukhiqiza ingilazi ye-alloy enembile, ibhodi le-fiber optical high refractive, elifanele ukwenza amakhamera, amakhamera, amalensi e-microscope, namaprism wezinsimbi zokubona ezithuthukisiwe. Ibuye isetshenziswe ekwenzeni ama-capacitor e-ceramic, ama-piezoelectric ceramic dopants, kanye nezinto ze-X-ray luminescent ezifanai-lanthanum bromideimpushana. Ikhishwe ku-lanthanum phosphate cerium ore noma itholwe ngokushisa i-lanthanum carbonate noma i-nitrate. Ingabuye itholakale ngokufudumeza nokubola i-oxalate ye-lanthanum. Isetshenziswa njenge-catalyst yokusabela okuhlukahlukene, njenge-catalytic oxidation ye-carbon monoxide uma igcwele i-cadmium oxide, kanye ne-catalytic hydrogenation ye-carbon monoxide ku-methane uma igcwele i-palladium. I-Lanthanum oxide efakwe nge-lithium oxide noma i-zirconia (1%) ingasetshenziswa ukwenza omazibuthe be-ferrite. Kuyi-catalyst esebenza ngempumelelo kakhulu yokuhlangana kwe-oxidative ye-methane ukukhiqiza i-ethane ne-ethylene. Isetshenziselwa ukuthuthukisa ukuncika kwezinga lokushisa kanye nezakhiwo ze-dielectric ze-barium titanate (BaTiO3) kanye ne-strontium titanate (SrTiO3) ferroelectrics, kanye nokwenza amadivaysi e-fiber optic nezingilazi ezibonakalayo.
Isikhathi sokuthumela: Aug-08-2023