ʻO ke kūlana hoʻomohala o ka ʻoihana Rare Earth ma Kina

Ma hope o 40 mau makahiki o ka hoʻoikaika ʻana, ʻoi aku ka wikiwiki o ka ulu ʻana mai 1978, Kinahonua lahaua loaʻa ka ʻoihana i kahi lele qualitative i ka pae hana a me ka maikaʻi o ka huahana, e hana ana i kahi ʻōnaehana ʻoihana piha. I kēia manawa,honua lahaka hoomaemae ana ma Kina

ʻO ka hoʻoheheʻe ʻana a me ka hoʻokaʻawale ʻana a hiki i ka 130000 tons i kēlā me kēia makahiki (REO), a ʻo ka hana makahiki o nā ʻāina laha ʻole e hiki aku ma luna o 70000 tons, ʻoi aku ma mua o 80% o ka huina o ka honua. ʻO kāna hana a me ka nui o ka hoʻokuʻu ʻana ʻo ia ka nui o ka honua.

Aia ma mua o 170honua lahaʻoihana hoʻoheheʻe a me ka hoʻokaʻawale ʻana ma Kina, akā ʻo 5 wale nō ka nui o ka hiki ke hana makahiki ma mua o 5000 tons (REO), me ka hapa nui o nā ʻoihana he 1000-2000 tons.

I kēia manawa, ua hoʻokumu ʻo Kina i ʻekolu kumu hana nui ma kahi o ʻekolu mau kumu nuihonua lahanā kumuwaiwai:

(1) He akauhonua lahaUa hoʻokumu ʻia ke kahua hana me Baotou i hui pū ʻiahonua lahaoka e like me ka mea maka, me BaotouHonua LakaʻikaʻiʻO High Tech a me Gansu Rare Earth Company ka iwi kuamoʻo. Aia ma mua o 80 mau ʻoihana e hana neihonua lahakemika e like mechloride lepo laha olea me ka carbonate i kēlā me kēia makahiki

ʻOi aku ma mua o 60000 tons o nā pūhui a me 15000 tons o hoʻokahihonua lahapūhui. I kēia manawa, ka hapa nuihonua lahaHoʻohana ʻia nā ʻoihana e hana ana i ka wai Baotou i ke kaʻina hoʻoheheʻe waika i hoʻomohala ʻia e Beijing Nonferrous Metals Research Institute, a laila hoʻohana i ka P204 a i ʻole P507 extraction s.kaawale anakiʻekiʻe-maʻemaʻe ceriumHoʻopuka pinepine ʻia e ka ʻoki ʻoki ʻana, a me ka pae fluorescenteuropium oxideunuhi ʻia e ka hoʻēmi ʻana. Loaʻa nā huahana nui i hoʻokahi a i ʻole hui pū ʻia ka honua like ʻolelanthanum, cerium, praseodymium, neodymium, samarium, europium, etc.

(2) ʻO ka waena a me ke kaumahahonua lahalawe ke kumu hana i nā ʻano ʻano ionic hema e like me nā mea maka, a mālama i kahi kokoke i 20000 tons o ke ʻano ionic hema.honua lahaores i kēlā me kēia makahiki. ʻO nā ʻoihana iwi hope ʻo Guanzhou ka Pearl River Smelter, Jianyin JiahuaHonua LakaʻikaʻiFactory, and Yixin Xinwei Rare Earth Co., Ltd Company, Liyan Luodiya Fangzheng Rare Earth Company, Guangdong Yanjiang Rare Earth Factory, etc. Southern ion type rare earth mines maʻamau hoʻohana i ka ammonium sulfate in situ leaching carbonate precipitation ignition hydrochloric acid dissolution P507 a me ka naphthenic ka hoʻokaʻawale ʻana a me ka hoʻomaʻemaʻe ʻana.

Medium a kaumaha hoʻokahinā ʻokikene honua laha ʻolea me kekahi mau pūhui waiwai e like meyttrium, dysprosium, hoʻopaʻapaʻa, europium, lanthanum, neodymium, samarium, etc.

(3) Ke hoʻohana nei ʻo Mianning fluorocarbon cerium ore ma Sichuan ma ke ʻano he mea maka, ua hoʻokumu ʻia kahi kumu hana no ka fluorocarbon cerium ore ma Sichuan. Aia i kēia manawa he 27 mau mea kanu hydrometallurgy me ka huina makahiki he 15-2000 tons. ʻO ke kaʻina hoʻoheheʻe ʻana o ka ʻaila fluoride aceriumʻO ka mea nui e pili ana i ka oxidation roasting vʻO nā kaʻina hana kemika i loaʻa mai ke kaʻina hana nui o ka hoʻomoʻa ʻana i ka sulfuric acid leaching, me nā huahana he hoʻokahi a hui pū ʻia ʻole ka honua i haku ʻia melanthanum, cerium, aneodymium. ʻO ka hapa nui o nā ʻoihana liʻiliʻi ma ka pālākiō, me nā lako haʻahaʻa a me ka pae ʻenehana.Teia ka nui o nā huahana mua mahonua lahanā huahana hoʻoheheʻe ʻia, me ka maʻemaʻe kiʻekiʻe a me nā huahana hoʻohui honua laha hoʻokahi i manaʻo ʻia ʻaʻole ʻoi aku ma mua o 5%.