Txij li xyoo 1950, Suavtsawg ntiaj tebcov neeg ua haujlwm tshawb fawb thiab thev naus laus zis tau ua kev tshawb fawb thiab kev loj hlob ntawm cov kuab tshuaj extraction txoj kev sib caistsawg ntiaj tebcov ntsiab lus, thiab tau ua tiav ntau qhov kev tshawb fawb tshawb fawb, uas tau siv dav hauv kev tsim khoom hauv ntiaj teb tsawg. Nyob rau hauv 1970, N263 tau ntse siv nyob rau hauv kev lag luam los extract thiab caisyttrium oxidenrog purity ntawm 99.99%, hloov ion pauv txoj kev sib caisyttrium oxide. Tus nqi yog tsawg tshaj li ib feem kaum ntawm txoj kev sib pauv ion; Xyoo 1970, P204 extraction tau siv los hloov cov txheej txheem recrystallization classical los tsim lub teebtsawg ntiaj teb oxides; Extractinglanthanum oxidesiv methyl dimethyl heptyl ester (P350) es tsis txhob ntawm classical fractional crystallization txoj kev; Hauv xyoo 1970, cov txheej txheem ntawm ammonia P507 extraction thiab kev sib cais ntawmtsawg ntiaj tebcov ntsiab lus thiab extraction ntawmyttriumnrog naphthenic acid yog thawj zaug siv nyob rau hauv Suav tebtsawg ntiaj tebhydrometallurgy kev lag luam; Txoj kev loj hlob sai ntawm extraction technology hauv Suav tebtsawg ntiaj tebkev lag luam yog inseparable los ntawm kev ua hauj lwm nyuaj ntawm Yuan Chengye thiab lwm yam comrades los ntawm Suav Academy ntawm Sciences Shanghai lub koom haum ntawm Organic Chemistry. Ntau yam extractants (xws li P204, P350, P507, thiab lwm yam) lawv tau ua tiav kev tshawb fawb tau dav siv hauv kev lag luam; Lub cascade extraction theory tau npaj thiab txhawb nqa los ntawm xibfwb Xu Guangxian ntawm Peking University hauv xyoo 1970 tau ua lub luag haujlwm tseem ceeb hauv Tuam Tshoj txoj kev rho tawm thiab kev sib cais tshuab. Nyob rau tib lub sijhawm, txoj kev sib cais ua kom zoo dua siv txoj kev tshawb nrhiav cascade extraction tau npaj thiab siv dav hauvtsawg ntiaj tebextraction thiab cais kev lag luam.
Tshaj li 40 xyoo dhau los, Tuam Tshoj tau ua tiav ntau qhov kev ua tiav zoo tshaj plaws hauv kev lag luamtsawg ntiaj tebkev sib cais thiab purification.
Nyob rau xyoo 1960, Beijing Nonferrous Metals Research Institute tau kawm tiav zinc hmoov txo alkalinity txoj kev los tsim high-purity.europium oxide, uas yog thawj zaug hauv Suav teb los tsim cov khoom lag luam ntau dua 99.99%. Txoj kev no tseem siv ntau yamtsawg ntiaj tebthoob plaws hauv lub tebchaws siv los ntawm lub Hoobkas; Shanghai Yuelong Chemical Plant, Fudan University, thiab Beijing General Institute of Nonferrous Metals koom tes ua ntej siv cov txheej txheem rho tawm ion txauv los txhawb N263 nrog P204 thiab extract thiab purify kom tau 99.95% purityyttrium oxide. Xyoo 1970, P204 tau siv los txhawb N263 thiab tau txaisyttrium oxidenrog ib tug purity ntawm ntau tshaj 99.99% los ntawm theem nrab extraction thiab purification.
Los ntawm 1967 txog 1968, kev sim cog ntawm Jiangxi 801 Factory thiab Beijing Nonferrous Metals Research Institute tau sib koom tes los kawm tiav cov txheej txheem ntawm kev siv P204 extraction grouping - N263 extraction rau extract yttrium oxide. Thaum lub Kaum Ob Hlis 1968, 3-ton / xyoo yyttrium oxideRhiav kev tsim khoom tau tsim, nrog purity ntawm 99% ntawmyttrium oxide.
Xyoo 1972, pab pawg tshawb fawb tau tsim los ntawm plaub lub tuam txhab, suav nrog Beijing Nonferrous Metals Research Institute, Jiangxi 806 Factory, Jiangxi Nonferrous Metallurgy Research Institute, thiab Changsha Nonferrous Metallurgy Design Institute. Tom qab ob xyoos ntawm kev tshawb fawb sib koom ua ke ntawm Beijing Nonferrous Metals Research Institute, txheej txheem ntawm kev rho tawmyttrium oxidesiv naphthenic acid ua ib qho extractant thiab tov cawv raws li ib tug diluent tau kawm tiav.
Xyoo 1974, Changchun Institute of Applied Chemistry tau tshawb pom thawj zaug uas thaum sib cais.tsawg ntiaj tebcov khoom siv naphthenic acid extraction,yttriumnyob rau pem hauv ntej ntawmlanthanum, ua nws qhov tsawg tshaj plaws yooj yim extractable keeb nyob rau hauv tsawg lub ntiaj teb ntsiab. Yog li ntawd, ib tug technology rau kev sib caisyttrium oxideKev siv naphthenic acid extraction los ntawm nitric acid system tau thov. Nyob rau tib lub sijhawm, Beijing Nonferrous Metals Research Institute tau tshawb fawb txog kev sib cais ntawmyttrium oxidelos ntawm hydrochloric acid systems siv naphthenic acid, thiab nthuav thwmsim tau ua nyob rau hauv Nanchang 603 Cog thiab Jiujiang 806 Cog nyob rau hauv 1975, siv Longnan tov.tsawg ntiaj teb oxideraws li raw khoom. Xyoo 1974, Shanghai Yuelong Chemical Plant, Fudan University, thiab Beijing Nonferrous Metals Research Institute tau koom tes los kawm txog kev sib cais.yttrium oxide los ntawm monazite Lub mixtsawg ntiaj tebntawm xim avyttriumcolumbium ore siv qhov hnyavtsawg ntiaj tebmuab rho tawm thiab pab pawg los ntawm P204 raws li cov khoom siv raw, thiabyttrium oxide yog sib cais los ntawm naphthenic acid extraction. Kev sib tw ua phooj ywg tau muaj nyob rau ntawm peb lub hauv ntej, uas txhua tus neeg sib pauv kev txawj ntse, kawm los ntawm ib leeg lub zog thiab qhov tsis muaj zog, thiab thaum kawg tau kawm tiav cov txheej txheem naphthenic acid extraction thiab kev sib cais ntawm 99.99%.yttrium oxide nrog Suav yam ntxwv.
Los ntawm 1974 txog 1975, Nanchang 603 Hoobkas tau koom tes nrog Changchun Institute of Applied Chemistry, Beijing General Institute of Non ferrous Metals, Jiangxi Institute of Non ferrous Metallurgy, thiab lwm lub tsev kom ua tiav txoj kev kawm thib peb.yttrium oxide extraction txheej txheem - naphthenic acid ib-kauj ruam extraction thiab extraction ntawm high-purityyttrium oxide. Cov txheej txheem tau muab tso rau hauv kev ua haujlwm hauv xyoo 1976.
Hauv thawj lub tebchawsLub ntiaj teb tsis tshua muajExtraction Conference muaj nyob rau hauv Baotou nyob rau hauv 1976, Xu Guangxian tau npaj lub tswv yim ntawm cascade extraction. Xyoo 1977, "National Symposium onLub ntiaj teb tsis tshua muajExtraction Cascade Theory and Practice” tau muaj nyob rau ntawm Shanghai Yuelong Chemical Plant, muab kev qhia txog kev ua haujlwm thiab kev qhia txog qhov kev xav no. Tom qab ntawd, txoj kev tshawb xav cascade extraction tau siv dav hauv kev tshawb fawb thiab tsim cov khoom siv hauv ntiaj teb tsis tshua muaj kev sib cais thiab purification.
Xyoo 1976, lub koom haum Beijing Nonferrous Metals Research Institute tau siv Baotou ore tov nrogtsawg ntiaj tebrho tawmceriumlos ntawm cov khoom enriched. Txoj kev rho tawm N263 tau siv los caislanthanum praseodymium neodymium. Peb cov khoom raug cais nyob rau hauv ib tug extraction, thiab purity ntawmlanthanum oxide, praseodymium oxide hmoov, thiabneodymium oxide hmoovyog nyob ib ncig ntawm 90%.
Los ntawm 1979 txog 1983, BaotouLub ntiaj teb tsis tshua muajLub koom haum tshawb fawb thiab Beijing Nonferrous Metals Research Institute tau tsim P507 hydrochloric acid systemtsawg ntiaj tebExtraction txheej txheem siv Baotou tsawg lub ntiaj teb ore ua raw khoom kom tau rau ib leegtsawg ntiaj tebcov khoom (purity 99% mus rau 99.95%) ntawmlanthanum, cerium, praseodymium, neodymium, samarium, thiabgadolinium nyob rau hauv cov ntshav, zoo lieuropiumthiabterbiumcov khoom muaj txiaj ntsig. Cov txheej txheem yog luv luv, tsis tu ncua, thiab cov khoom purity yog siab.
Thaum xyoo 1980, Beijing Nonferrous Metals Research Institute tau koom tes nrog Jiujiang Nonferrous Metals Smelter, Changchun Institute of Applied Chemistry, thiab Jiangxi 603 Factory los ua lub teb chaws "Sixth Tsib Xyoo Plan" kev tshawb fawb thiab ua tiav cov txheej txheem thev naus laus zis rau kev sib cais tag nrho.tsawg ntiaj tebcov khoom los ntawm Longnan sib xyawtsawg ntiaj tebsiv P507 hydrochloric acid system.
Xyoo 1983, Jiujiang Nonferrous Metals Smelter tau txais cov txheej txheem thev naus laus zis ntawm Beijing Nonferrous Metals Research Institute's "naphthenic acid hydrochloric acid system los tsim cov qib fluorescent.yttrium oxidelos ntawm Longnan sib xyaw tsis tshua muaj ntiaj teb" los tsim fluorescent qibyttrium oxide, txo tus nqi ntawmyttrium oxidethiab ua tau raws li qhov xav tauyttrium oxiderau xim TV hauv Suav teb.
Xyoo 1984, Beijing General Institute of Non ferrous Metals tau kawm tiav kev sib cais ntawm high-purity.terbium oxidesiv P507 extraction resin sivterbiumenriched tshuaj raws li raw cov ntaub ntawv nyob rau hauv Tuam Tshoj.
Xyoo 1985, Beijing Nonferrous Metals Research Institute tau xa cov naphthenic acid extraction cais fluorescent qib.yttrium oxidetxheej txheem thev naus laus zis rau yav dhau los German Democratic Republic rau 1.71 lab Swiss francs, uas yog thawj zaugtsawg ntiaj tebcais txheej txheem tshuab exported los ntawm Tuam Tshoj.
Los ntawm 1984 txog 1986, Peking University tau ua tiav kev sim ua haujlwm ntawm kev rho tawm thiab sib cais ntawm La / CePr / Nd thiab La / Ce / Pr hauv P507-HCl system ntawm Thib PebLub ntiaj teb tsis tshua muajCog ntawm Baosteel. Ntau tshaj 98%praseodymium oxide hmoov, 99.5%lanthanum oxide, ntau dua 85%cerium oxide, thiab 99%neodymium oxide hmoovtau txais. Xyoo 1986, Shanghai Yuelong Chemical Plant tau siv qhov kev tsim kho kom zoo tshaj plaws ntawm peb qhov hluav taws xob rho tawm cov txheej txheem, kev ua tiav theoretical ntawm Peking University lub cascade extraction txoj kev xav, los ua peb qhov hluav taws xob muaj kev sim hauv P507-HCl qhov tsim tshiab lub teeb tsis tshua muaj lub ntiaj teb sib cais txheej txheem. Kev lag luam kev sim ntsuas ncaj qha nthuav dav qhov cascade extraction theory tsim rau 100 tons, ua kom luv luv lub voj voog ntawm kev siv cov txheej txheem tshiab rau kev tsim khoom.
Los ntawm 1986 txog 1989, Baotou Rare Earth Research Institute, Jiangxi 603 Factory, thiab Beijing Nonferrous Metals Research Institute tau tsim P507-HCl system ntau qhov hluav taws xob rho tawm txheej txheem, uas tso cai rau kev tsim tawm ib txhij ntawm 3-5 cov khoom tsis tshua muaj hauv ntiaj teb los ntawm ib feem ntawm kev rho tawm. Cov txheej txheem yog luv luv, raug nqi, thiab hloov tau.
Los ntawm 1990 txog 1995, Beijing Nonferrous Metals Research Institute thiab BaotouLub ntiaj teb tsis tshua muajLub koom haum tshawb fawb tau koom tes los ua lub teb chaws "Ib Tsib Tsib Xyoo Plan" kev tshawb fawb thiab thev naus laus zis project "Kev Tshawb Fawb Txog Kev Purity Ib LeegLub ntiaj teb tsis tshua muajExtraction Technology ". Kaum rau ib leegtsawg ntiaj teb oxideCov khoom uas muaj purity ntau dua 99.999% mus rau 99.9999% tau npaj siv txoj kev rho tawm, rho tawm chromatography txoj kev, redox method, thiab cation exchange fiber chromatography txoj kev, feem. Cov txheej txheem no tau mus txog qib siab thoob ntiaj teb thiab yeej National "Eighth Five Year Plan" Major Achievement Award.
Xyoo 2000, Beijing Nonferrous Metals Research Institute tau ua tiav cov txheej txheem electrolytic txo alkalinity los npaj high-purity.europium oxide. Vim tsis txhob muaj kuab paug ntawm zinc hmoov ntawm cov khoom, cov txheej txheem no tuaj yeem rho tawmeuropium oxidenrog purity ntawm 5N-6N hauv ib qho mus. Nyob rau hauv 2001, ib xyoo ntau lawm kab ntawm 18 tons ntawm high-purityeuropium oxidetau tsim ntawm GansuLub ntiaj teb tsis tshua muajLub tuam txhab thiab muab tso rau hauv lub xyoo ntawd.
Hauv kev xaus, Tuam Tshoj tustsawg ntiaj tebkev sib cais thiab purification tshuab tuaj yeem hais tias yog tus thawj coj hauv ntiaj teb, xws li naphthenic acid extraction cais ntawmyttrium oxideloj dua 5N, P507 rho tawm txoj kev npajlanthanum oxideloj dua 5N, electrolytic txo rho tawm txoj kev los yog alkalinity txoj kev npajeuropium oxideloj dua 5N, thiab lwm yam. Txawm li cas los xij, theem ntawm automation tswj nyob rau hauv kev sib cais thiab purification kev lag luam yog tsawg, thiab qee lub lag luam muaj kev ruaj ntseg tsis zoo thiab sib xws ntawm high-purity.tsawg ntiaj tebcov khoom. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau txhim kho cov cuab yeej cuab tam ntawm cov lag luam.
Post lub sij hawm: Nov-02-2023