Praseodymium oxide,molecular formulaPr6O11, kaumaha molekala 1021.44.
Hiki ke hoʻohana ʻia i ke aniani, metallurgy, a me ka mea hoʻohui no ka pauka fluorescent. ʻO Praseodymium oxide kekahi o nā huahana nui i ka mālamalamanā huahana ʻāina laha ʻole.
Ma muli o kāna mau waiwai kino a me ke kemika, ua hoʻohana nui ʻia i nā kula e like me ka ceramics, aniani, rare earth permanent magnets, rare earth cracking catalysts, rare earth polishing powders, grinding materials, and additives, with promising prospects.
Mai ka makahiki 1990, ua hana ka ʻenehana hana a Kina no ka praseodymium oxide i nā hoʻomaikaʻi nui a me ka hoʻomaikaʻi ʻana, me ka ulu wikiwiki a me ka ulu ʻana. ʻAʻole hiki iā ia ke hoʻokō i ka nui o ka noi kūloko a me nā koi o ka mākeke, akā nui nō hoʻi ka nui o nā hoʻoiho. No laila, ʻo ka ʻenehana hana hana o Kina i kēia manawa, nā huahana a me nā huahana o ka praseodymium oxide, a me ka noi no ka hoʻolako ʻana i nā mākeke kūloko a me nā ʻāina ʻē, aia i waena o nā mea kiʻekiʻe o ka ʻoihana like ma ka honua.
Waiwai
ʻO ka pauka ʻeleʻele, ʻeleʻele 6.88g/cm3, helu heheʻe 2042 ℃, kahi paila 3760 ℃. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i loko o nā waikawa e hana i nā paʻakai trivalent. ʻO ka conductivity maikaʻi.
Hoʻohuihui
1. Keʻano hoʻokaʻawale kemika. Loaʻa iā ia ke ʻano crystallization fractional, fractional precipitation method and oxidation method. Hoʻokaʻawale ʻia ka mea mua ma muli o ka ʻokoʻa o ka solubility aniani o nā nitrates honua. Hoʻokumu ʻia ka hoʻokaʻawale ʻana ma luna o nā huahana nui o ka ua o nā paʻakai paʻakikī sulfate honua. Hoʻokaʻawale ʻia ka mea hope ma muli o ka hoʻokahe ʻana o ka trivalent Pr3+ i ka tetravalent Pr4+. ʻAʻole i hoʻohana ʻia kēia mau ʻano ʻekolu i ka hana ʻoihana ma muli o kā lākou haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa honua, nā kaʻina hana paʻakikī, nā hana paʻakikī, nā haʻahaʻa haʻahaʻa, a me nā kumukūʻai kiʻekiʻe.
2. Keʻano hoʻokaʻawale. Hoʻopili i ke ʻano hoʻokaʻawale hoʻokaʻawale paʻakikī a me ke ʻano hoʻokaʻawale hoʻokaʻawale saponification P-507. Hoʻohana ka mea mua i ka extrusion paʻakikī DYPA a me N-263 extractants e unuhi a hoʻokaʻawale i ka praseodymium mai ka ʻōnaehana nitric acid o praseodymium neodymium enrichment, e hopena i kahi Pr6O11 99% hua o 98%. Eia nō naʻe, ma muli o ke kaʻina hana paʻakikī, ka hoʻohana nui ʻana i nā mea hana paʻakikī, a me nā kumukūʻai huahana kiʻekiʻe, ʻaʻole i hoʻohana ʻia i ka hana ʻoihana. Loaʻa i nā mea hope ʻelua ka unuhi maikaʻi a me ka hoʻokaʻawale ʻana o praseodymium me P-507, ua hoʻohana ʻia ia mau mea ʻelua i ka hana ʻoihana. Eia nō naʻe, ma muli o ke kiʻekiʻe o ka P-507 extraction o praseodymium a me ka nui o ka pohō o P-204, ʻo ka P-507 extraction a me ka hoʻokaʻawale ʻana i kēia manawa ke hoʻohana mau nei i ka hana ʻoihana.
3. ʻAʻole hoʻohana ʻia ke ʻano hoʻololi ion i ka hana ʻana ma muli o kāna kaʻina hana lōʻihi, ka hana pilikia, a me ka haʻahaʻa haʻahaʻa, akā ʻoi aku ka haʻahaʻa o ka huahana maʻemaʻe Pr6O11 ≥ 99 5%, hua ≥ 85%, a ʻo ka hoʻokuʻu ʻana i kēlā me kēia ʻāpana o nā lako.
1) Ka hana ʻana i nā huahana praseodymium oxide me ka hoʻohana ʻana i ke ʻano hoʻololi ion: me ka hoʻohana ʻana i ka praseodymium neodymium i hoʻohui ʻia (Pr, Nd) 2Cl3 ma ke ʻano he kumu. Hoʻomākaukau ʻia ia i loko o kahi hāʻina hānai (Pr, Nd) Cl3 a hoʻouka ʻia i loko o kahi kolamu adsorption e hoʻopili ai i nā honua laha ʻole. Ke like ka ʻike ʻana o ka hoʻonā meaʻai e hiki mai ana me ka neʻe ʻana i waho, ua hoʻopau ʻia ka adsorption o nā ʻāina laha ʻole a kali i ke kaʻina hana e hoʻohana ai. Ma hope o ka hoʻouka ʻana i ke kolamu i loko o ka resin cationic, hoʻohana ʻia ka hopena CuSO4-H2SO4 e kahe i loko o ke kolamu e hoʻomākaukau ai i kahi kolamu hoʻokaʻawale honua Cu H + rare no ka hoʻohana ʻana. Ma hope o ka hoʻohui ʻana i hoʻokahi kolamu adsorption a me ʻekolu kolamu hoʻokaʻawale i ka moʻo, e hoʻohana i ka EDT A (0 015M) Kahe i loko mai ka puka komo o ka kolamu adsorption mua no ka hoʻokaʻawale ʻana (leaching rate 1 2cm/min）。 Ke kahe mua ka neodymium ma ka puka o ʻO ke kolamu hoʻokaʻawale ʻekolu i ka wā o ka hoʻokaʻawale leaching, hiki ke hōʻiliʻili ʻia e ka mea hoʻokipa a mālama ʻia i kemika no ka loaʻa ʻana o Nd2O3 Ma hope o ka hoʻokaʻawale ʻia ʻana o ka neodymium i loko o ke kolamu hoʻokaʻawale, ʻohi ʻia ka hopena PrCl3 maʻemaʻe ma ka puka o ka kolamu hoʻokaʻawale a hoʻopaʻa ʻia i ka lāʻau kemika e hana ai i ka huahana Pr6O11 o ka honua laha ole ma ke kolamu adsorption → ka hookui ana o ke kolamu kaawale → kaawale leaching → ka ohi ana o ka solution praseodymium maemae → waika oxalic ka ua → ʻike → pūʻulu.
2) Ka hana ʻana i nā huahana praseodymium oxide me ka hoʻohana ʻana i ke ʻano o ka unuhi ʻana P-204: me ka hoʻohana ʻana i ka lanthanum cerium praseodymium chloride (La, Ce, Pr) Cl3 ma ke ʻano he mea maka. E hoʻohui i nā mea maka i loko o kahi wai, e hoʻoheheʻe i ka P-204, a hoʻohui i ka ʻaila e hana i kahi hopena extractant. E hoʻokaʻawale i ka wai hānai mai ka praseodymium i unuhi ʻia i loko o ka pahu hoʻomaʻamaʻa hui ʻia. A laila holoi i nā mea haumia i loko o ka māhele organik, a hoʻohana i ka HCl e unuhi i ka praseodymium e loaʻa ai ka hopena PrCl3 maʻemaʻe. E hoʻoheheʻe me ka ʻakika oxalic, calcine, a me ka pūʻolo e loaʻa ai ka huahana praseodymium oxide. ʻO ke kaʻina hana nui penei: nā mea maka → ka hoʻomākaukau ʻana i ka hopena hānai → P-204 ka unuhi ʻana o ka praseodymium → ka holoi ʻana → ka hoʻokaʻawale ʻana o ka waika lalo o ka praseodymium → ka hopena PrCl3 maʻemaʻe → ka wai wai oxalic → calcination → hoʻāʻo → hoʻopili (nā huahana praseodymium oxide).
3) Ka hana ʻana i nā huahana praseodymium oxide me ka hoʻohana ʻana i ke ʻano hoʻoheheʻe P507: Ke hoʻohana nei i ka cerium praseodymium chloride (Ce, Pr) Cl3 i loaʻa mai ka ionic rare earth concentrate ma ke ʻano he maka (REO ≥ 45%, praseodymium oxide ≥ 75%). Ma hope o ka unuhi ʻana i ka praseodymium me ka hoʻonā meaʻai i hoʻomākaukau ʻia a me ka extractant P507 i loko o ka pahu hoʻoheheʻe, holoi ʻia nā mea haumia i loko o ka māhele organik me HCl. ʻO ka hope, hoʻihoʻi ʻia ka praseodymium me HCl no ka loaʻa ʻana o kahi hopena PrCl3 maʻemaʻe. ʻO ka ua o ka praseodymium me ka oxalic acid, calcination, a me ka hoʻopili ʻana i nā huahana praseodymium oxide. ʻO ke kaʻina hana nui penei: nā mea maka → ka hoʻomākaukau ʻana i ka hopena hānai → ka unuhi ʻana o ka praseodymium me ka P-507 → ka holoi ʻana i ka haumia → ka hoʻihoʻi hou ʻana o ka praseodymium → ka hoʻonā PrCl3 maʻemaʻe → ka wai oxalic precipitation → calcination → ka ʻike → ka hoʻopili ʻana (nā huahana praseodymium oxide).
4) Ka hana ʻana o nā huahana praseodymium oxide me ka hoʻohana ʻana i ke ʻano o ka unuhi ʻana P507: ʻO ka lanthanum praseodymium chloride (Cl, Pr) Cl3 i loaʻa mai ka hana ʻana o Sichuan rare earth concentrate ua hoʻohana ʻia e like me ka mea maka (REO ≥ 45%, praseodymium oxide 8.05%), a ʻo ia. i hoʻomākaukau ʻia i loko o kahi wai hānai. Lawe ʻia ʻo Praseodymium me ka saponified P507 extraction agent i loko o kahi pahu hoʻoheheʻe, a hoʻoneʻe ʻia nā mea haumia i loko o ka māhele organik e ka holoi ʻana iā HCl. A laila, hoʻohana ʻia ka HCl no ka hoʻihoʻi ʻana i ka praseodymium e loaʻa ai ka hopena PrCl3 maʻemaʻe. Loaʻa nā huahana Praseodymium oxide ma ka precipitating praseodymium me ka oxalic acid, calcining, a me ka hoʻopili. ʻO ke kaʻina hana nui: nā mea maka → hoʻonā mea hoʻohui → P-507 ka unuhi ʻana o ka praseodymium → ka holoi ʻana i ka haumia → ka hoʻohuli ʻana o ka praseodymium → ka hoʻonā PrCl3 maʻemaʻe → ka wai wai oxalic → calcination → hoʻāʻo → hoʻopili (nā huahana praseodymium oxide).
I kēia manawa, ʻo ka ʻenehana kaʻina hana nui no ka hana ʻana i nā huahana praseodymium oxide ma Kina ʻo ka P507 extraction method me ka hoʻohana ʻana i ka ʻōnaehana hydrochloric acid, i hoʻohana nui ʻia i ka hana ʻenehana o nā ʻano like ʻole o ka honua oxides a ua lilo i ʻenehana kaʻina hana holomua i ka like. ʻoihana ma ka honua holoʻokoʻa, hoʻonohonoho i waena o nā mea kiʻekiʻe.
Palapala noi
1. Hoʻohana ʻia i loko o ke aniani aniani honua
Ma hope o ka hoʻohui ʻana i nā oxides honua ʻokoʻa i nā ʻāpana like ʻole o ke aniani, hiki ke hana ʻia nā kala like ʻole o nā aniani honua, e like me ke aniani ʻōmaʻomaʻo, ke aniani laser, ka magneto optical, a me ke aniani fiber optic, a ke hoʻonui nei kā lākou noi i kēlā me kēia lā. Ma hope o ka hoʻohui ʻana i ka praseodymium oxide i ke aniani, hiki ke hana ʻia kahi aniani ʻōmaʻomaʻo, nona ka waiwai kiʻi kiʻekiʻe a hiki ke hoʻohālike i nā pōhaku makamae. He ʻōmaʻomaʻo kēia ʻano aniani ke ʻike ʻia i ka lā maʻamau, ʻoiai ʻaʻohe waihoʻoluʻu ma lalo o ke kukui kukui. No laila, hiki ke hoʻohana ʻia e hana i nā pōhaku makamae a me nā mea hoʻonani makamae, me nā kala nani a me nā ʻano nani.
2. Ka hoʻohana ʻana i nā seramika honua laha ʻole
Hiki ke hoʻohana ʻia nā mea hoʻohui i nā seramika e hana i nā seramika honua laha ʻole me ka hana ʻoi aku ka maikaʻi. ʻO nā seramika maikaʻi ʻole o ka honua i waena o lākou he mea hōʻike. Hoʻohana ʻo ia i nā mea maka i koho ʻia a hoʻohana maʻalahi i ka mālama ʻana i nā kaʻina hana a me nā ʻenehana hana, hiki ke hoʻokele pololei i ka haku mele. Hiki ke hoʻokaʻawale ʻia i ʻelua mau ʻano: nā ceramics hana a me nā ceramics structural kiʻekiʻe. Ma hope o ka hoʻohui ʻana i nā oxides honua ʻokoʻa, hiki iā lākou ke hoʻomaikaʻi i ka sintering, density, microstructure, a me ka hoʻonohonoho ʻana o nā seramika e hoʻokō i nā koi o nā noi like ʻole. ʻO ka ceramic glaze i hana ʻia me ka praseodymium oxide ma ke ʻano he kala ʻaʻole i hoʻopilikia ʻia e ka lewa i loko o ka kiln, he ʻano paʻa ke kala, ʻulaʻula ʻulaʻula, hiki ke hoʻomaikaʻi i nā waiwai kino a me nā kemika, hoʻomaikaʻi i ka paʻa wela a me ka maikaʻi o nā seramika, hoʻonui i nā ʻano kala, a hoemi i na koina. Ma hope o ka hoʻohui ʻana i ka praseodymium oxide i nā puaʻa ceramic a me nā aniani, hiki ke hana ʻia ka honua laʻa praseodymium melemele, praseodymium ʻōmaʻomaʻo, underglaze ʻulaʻula a me ke keʻokeʻo ghost glaze, ʻelepani melemele ʻelepani, apple green porcelain, etc. ʻOi aku ka maikaʻi o kēia ʻano porcelain artistic a ua lawe maikaʻi ʻia i waho, i kaulana ma waho. Wahi a nā ʻikepili pili, ʻo ka noi honua o praseodymium neodymium i loko o nā seramika ma luna o hoʻokahi tausani tona, a he mea hoʻohana nui hoʻi ia i ka praseodymium oxide. Ke manaʻo ʻia nei e ulu nui aʻe i ka wā e hiki mai ana.
3. Hoʻohana ʻia i loko o nā mea magnet mau loa
ʻO ka nui loa o ka ikehu ikehu (BH) o (Pr, Sm) Co5 mau mākēneki mau m=27MG θ e (216K J/m3). A ʻo ka (BH) m o PrFeB he 40MG θ E (320K J/m3). No laila, ʻo ka hoʻohana ʻana i ka Pr i hana ʻia nā magnet mau loa i hiki ke hoʻohana ʻia i nā ʻoihana ʻoihana a me nā ʻoihana kīwila.
4. No ka hana ʻana i nā huila wili corundum ma nā kula ʻē aʻe.
Ma ke kumu o ka corundum keʻokeʻo, hoʻohui ʻia e pili ana i ka 0.25% praseodymium neodymium oxide hiki ke hana i nā huila wili corundum honua ʻole, e hoʻomaikaʻi nui i kā lākou hana wili. E hoʻonui i ka helu wili e 30% a 100%, a pālua i ke ola lawelawe. Loaʻa i ka Praseodymium oxide nā waiwai polishing maikaʻi no kekahi mau mea, no laila hiki ke hoʻohana ʻia ma ke ʻano he mea polishing no nā hana polishing. Aia ma kahi o 7.5% praseodymium oxide i loko o ka cerium based polishing powder a hoʻohana nui ʻia no ka poli ʻana i nā aniani optical, nā huahana metala, nā aniani pālahalaha, a me nā paipu kīwī. He maikaʻi ka hopena polishing a he nui ka nui o ka noi, a ua lilo i ka pauka polishing nui ma Kina i kēia manawa. Eia kekahi, hiki i ka noi o ka petroleum cracking catalysts ke hoʻonui i ka hana catalytic, a hiki ke hoʻohana ʻia e like me nā mea hoʻohui no ka hana kila, hoʻomaʻemaʻe i ke kila hoʻoheheʻe ʻia, a me nā mea ʻē aʻe. he ʻano hoʻokahi o ka praseodymium oxide. Ua manaʻo ʻia e hoʻomau ʻia kēia ʻano i ka wā e hiki mai ana.
Ka manawa hoʻouna: Mei-26-2023