Ina ua maeʻa le silia ma le 40 tausaga o taumafaiga, aemaise lava le televave o atinaʻe talu mai le 1978, Sainaeleele seaseaalamanuia ua feagai ma se oso maualuga i tulaga gaosiga ma le tulaga lelei o oloa, fausia ai se faiga alamanuia atoatoa.I le taimi nei,eleele seaseafaamamaina i Saina
O le smelting omea ma le vavaeeseina gafatia e oʻo atu i le 130000 tone i le tausaga (REO), ma o le gaosiga faaletausaga o eleele e le masani ai e oʻo atu i le 70000 tone, faʻamauina mo le 80% o le aofaʻi o le gaosiga o le lalolagi.O lona gaosiga ma le fa'atauina atu o le tele o le lalolagi.
E silia ma le 170eleele seaseasmelting ma tuueseeseina pisinisi i Saina, ae na o le 5 i ai le gafatia faagasologa faaletausaga sili atu i le 5000 tone (REO), faatasi ai ma le tele o pisinisi o loo i ai le gafatia gafatia o 1000-2000 tone.
I le taimi nei, ua fausia e Saina ni fa'avae tetele e tolu e fa'atatau i le tolu teteleeleele seaseapunaoa:
(1) A matueleele seaseafaavae gaosiga ua faia ma Baotou fefiloieleele seaseaoa e pei o mea mata, ma BaotouLalolagi SeaseaHigh Tech ma Gansu Rare Earth Kamupani e fai ma ivi tua.E silia ma le 80 pisinisi e gaosiaeleele seaseavaila'au e pei ochloride eleele seaseama carbonate i tausaga taʻitasi
E sili atu i le 60000 tone o faʻapotopotoga ma 15000 tone o le tasieleele seaseafa'atasi.I le taimi nei, o le teleeleele seaseapisinisi gaosi Baotou o'a fa'aaogaina le fa'agasologa o le fa'afefeteina o le acid na fausia e le Beijing Nonferrous Metals Research Institute, ona fa'aaoga lea o le P204 po'o le P507 s.tuueseeseina, leamaualuga-mama le ceriume masani ona maua mai e oxidation fa'amasani, ma fluorescent vasegaeuropium oxidee maua mai i le fa'aitiitiga fa'aitiitiga.O oloa autu e aofia ai mea e tasi pe fefiloi o eleele e le masani ai e pei olelanthanum, cerium, praseodymium, neodymium, samarium, europium, ma isi.
(2) O le feololo ma le mamafaeleele seaseafa'avae gaosiga o lo'o fa'aaogaina ores ituaiga ionic i le itu i saute e pei o mea mata, ma fa'atautaia le toetoe 20000 tone o le ituaiga ionic i saute.eleele seaseaomea i tausaga taitasi.O pisinisi pito i tua e aofia ai Guanzhou le Pearl River Smelter, Jianyin JiahuaLalolagi SeaseaFalegaosimea, ma Yixin Xinwei Rare Earth Co., Ltd Kamupani, Liyan Luodiya Fangzheng Rare Earth Company, Guangdong Yanjiang Rare Earth Factory, ma isi. Southern ion type rare earth mines e masani ona fa'aogaina le ammonium sulfate in situ leaching carbonate precipitation ignition hydrochloric acid dissolution P507 ma naphthenic. fa'amavaega ma le fa'amamāina.
Medium i le mamafa nofofuaoxides eleele seaseama nisi mea fa'atamaoaigaina e pei oyttrium, dysprosium, fa'ama'i, europium, lanthanum, neodymium, samarium, ma isi.
(3) Faʻaaogaina le Mianning fluorocarbon cerium ore i Sichuan e pei o mea mataʻutia, o se faʻavae gaosiga mo fluorocarbon cerium ore ua faʻatuina i Sichuan.O lo'o iai nei la'au e 27 hydrometallurgy ma le aofa'i o galuega fa'aletausaga e 15-2000 tone.Le fa'agasologa o le fa'afefeteina o 'oa fluoride maceriumo'oa e masani ona aofia ai fa'ama'i fa'avelaina v'ese'ese fa'agasologa o vaila'au fa'atosina e maua mai i le fa'agasologa autu o le taoina o le sulfuric acid leaching, fa'atasi ai ma oloa e tasi pe fefiloi fa'afefiloi eleele e masani lava ona aofia ai.lanthanum, cerium, maneodymium.O le tele o atina'e e la'ititi la'ititi, ma mea faigaluega maualalo ma tulaga fa'atekonolosi.To le tele o oloa muamua i totonueleele seaseafa'ameamea fa'ameamea, fa'atasi ai ma le mama maualuga ma mea e tasi e seasea maua fa'afefiloi eleele fa'atatau e le sili atu i le 5%.
Taimi meli: Nov-02-2023