Txij li xyoo 1950, SuavTsis tshua muaj ntiaj tebKev tshawb fawb txuj ci thiab thev naus laus zis tau ua cov kev tshawb fawb dav dav thiab kev txhim kho ntawm cov kuab kev rho tawm sib caisTsis tshua muaj ntiaj tebNtsiab, thiab tau ua tiav ntau cov txiaj ntsig kev tshawb fawb, uas tau siv dav siv hauv kev lag luam hauv av tsis tshua muaj. Xyoo 1970, N263 tau ua tiav hauv kev lag luam kom rho tawm thiab caisyttrium oxideNrog kev coj dawb huv ntawm 99.99%, hloov cov txheej txheem sib pauv ion rau kev sib caisyttrium oxideCov. Tus nqi tsawg dua ib feem kaum ntawm qhov ntawm ion kev sib pauv qauv; Xyoo 1970, P204 extraction tau siv hloov chaw ntawm cov txheej txheem Recryical Recrystallization los tsim lub teebTsis tshua muaj lub ntiaj teb oxides; Kev rhoLanthhanum oxideKev siv methyl dimethyl heptyl ester (p350) hloov cov txheej txheem crystalal crystallization; Xyoo 1970, cov txheej txheem ntawm Ammonia P507 extraction thiab sib cais ntawmTsis tshua muaj ntiaj tebntsiab thiab cov kev rho tawm ntawmyttriumnrog naphthenic acid tau thawj zaug siv hauv Suav tebTsis tshua muaj ntiaj tebhydrometallurgurgurgy kev lag luam; Kev loj hlob sai ntawm extraction technology hauv Suav tebTsis tshua muaj ntiaj tebKev lag luam yog inseparable los ntawm kev nyuaj ua haujlwm ntawm Yuan chenge thiab lwm yam comrades los ntawm cov kev kawm shanghai ntawm cov organic science. Ntau yam extractants (xws li P204, P350, P50, thiab lwm yam) Lawv tau tshawb nrhiav tau ua tiav tau siv dav hauv kev lag luam; Cov Cascade extraction kev xav tau thov thiab txhawb nqa los ntawm Professor Xu Guangxian ntawm Peking University nyob rau hauv Tuam Tshoj cov extraction thiab sib cais thev naus laus zis. Ib txhij, ib tug sib cais ua kom zoo siv cov Cascade extraction txoj kev xav tau npaj siab thiab siv dav hauvTsis tshua muaj ntiaj tebrho tawm thiab sib cais kev lag luam.
Dhau 40 xyoo dhau los, Tuam Tshoj tau ua tiav ntau yam kev ua tau zoo nyob hauv qhov chaw ntawmTsis tshua muaj ntiaj tebsib cais thiab huv.
Thaum xyoo 1960, Beijing Beijing tsis muaj hlau tshawb txuj ci ua tiav txoj kev kawm ua tiav cov hmoov av zomEuropium oxide, uas yog thawj zaug hauv Suav teb los tsim cov khoom lag luam ntau dua 99.99%. Hom no tseem siv nyob rau hauv ntau yamTsawg lub ntiaj tebthoob plaws lub teb chaws siv los ntawm lub Hoobkas; Shanghai YELELOn tshuaj nroj tshuag, Fudan University, thiab Beijing General cov hlau sib koom tes los txhawb nqa N263 nrog P204 thiab extract thiab purify kom tau txais 99.95% purityyttrium oxideCov. Xyoo 1970, P204 tau siv los txhawb rau N263 thiab tauyttrium oxideNrog kev coj dawb huv ntawm ntau tshaj 99.99% dhau los ntawm kev rho tawm theem nrab thiab huv.
Los ntawm 1967 txog 1968, cov kev sim cog ntawm Jiangxi 801 Hoobkas thiab Beijing M204 Extraction Grouping - N263 kev tshem tawm kom rho tawm yttrium oxide. Thaum Lub Kaum Ob Hlis 1968, 3-TUJ / XYOO Yyttrium oxideKev cob qhia ntau lawm ua tau tsim, nrog kev coj dawb huv ntawm 99% ntawmyttrium oxide.
Xyoo 1972, pab pawg tshawb fawb tau tsim los ntawm plaub lub tuam txhab, suav nrog kev tshawb fawb hlau me, thiab pobtshta tsis muaj teeb meem metall Tom qab ob xyoos ntawm kev tshawb fawb kev tshawb fawb ntawm Beijing kev tshawb fawb hlau tsis tau siv cov hlau ua haujlwm, cov txheej txheem ntawm kev rho tawmyttrium oxideSiv naphthenic acid ua ib qho kev rho tawm thiab sib xyaw ua ke raws li kev ua kom tiav tau kawm tiav.
Xyoo 1974, Changchun lub koom haum ntawm kev thov chemistry nrhiav thawj zaug uas thaum sib caisTsis tshua muaj ntiaj tebCov ntsiab uas siv naphthenic acid extraction,yttriumtau nyob rau pem hauv ntejlus qhia, ua nws qhov tsawg tshaj plaws yooj yim muab rho tawm hauv kev tsis tshua muaj lub ntiaj teb. Yog li ntawd, thev naus laus zis rau kev sib caisyttrium oxideSiv cov kua qaub naphthenic acid extraction los ntawm nitric acid system tau npaj tseg. Nyob rau tib lub sijhawm, lub Beijing tsis pab pawg neeg siv hlau ua haujlwm tau txais kev tshawb fawb ntawm kev sib cais ntawmyttrium oxidelos ntawm hydrochloric acid tshuab siv naphthenic acid, thiab nthuav kev sim tau ua nyob rau hauv Nanchang 603 nroj tshuag thiab Jiujiang 806 nroj tsuag xyoo 1975, siv Longnan MixedTsawg lub ntiaj teb oxideraws li cov khoom siv raw. Xyoo 1974, Shanghai Yelelai Yeluot Cog, Fudan University, thiab Beijing MineDrous Mineals Kev Tshawb Fawb Kev Tshawb Fawb los kawm txog kev sib cais ntawmyttrium oxide los ntawm monazite cov sib xyawTsis tshua muaj ntiaj tebntawm xim avyttriumColumbium ORE siv hnyavTsis tshua muaj ntiaj tebmuab rho tawm thiab ua ke los ntawm P204 ua cov khoom siv raw, thiabyttrium oxidE tau sib cais los ntawm naphthenic acid extraction. Kev sib tw ua phooj ywg tau muaj nyob ntawm peb sab pem hauv ntej, uas txhua tus sib pauv kev txawj ntse, kawm tau los ntawm txhua tus ua tau zoo, thiab thaum kawg kawm txog cov txheej txheem naphthenicyttrium oxide nrog cov yam ntxwv Suav.
Los ntawm 1974 txog 1975, Nchang 60 lub Hoobkas sib koom tes nrog cov khoom siv Chemistry, Jiangxing General Metalistry, thiab lwm cov koog ua tiav txoj kev kawm ua keyttrium oxidE extraction - naphthenic acid ib-kauj ruam extraction thiab extraction ntawm high-purityyttrium oxide. Cov txheej txheem tau muab tso rau hauv kev ua haujlwm xyoo 1976.
Ntawm thawj lub teb chawsTsis tshua muaj ntiaj tebCov kev sib tham sib tham tau muaj nyob hauv BaoTou xyoo 1976, Mr. Xu Guangxian tau thov lub hom phiaj ntawm Cascade extraction. Xyoo 1977, "Lub Tebchaws Symposine rauTsis tshua muaj ntiaj tebExtraction Cascade Theory kev tshawb xav thiab kev coj ua "tau muaj nyob ntawm Shanghai Yelel chem nroj tsuag, muab cov lus qhia thiab muaj txiaj ntsig zoo rau qhov kev xav no. Tom qab, lub Cascade extraction kev tshawb xav tau siv dav hauv kev tshawb fawb thiab kev tsim cov hauv ntiaj teb kev sib cais thiab huv.
Xyoo 1976, Beijing Beijing tsis pab hlau kev tshawb fawb siv Baotou ore tov nrogTsis tshua muaj ntiaj tebmus rau extractxiIABlos ntawm cov khoom siv tau. Lub N263 cov txheej txheem rho tawm tau siv los caislus qhia Preaseymium neodymiumCov. Peb cov khoom tau sib cais hauv ib qho kev tawm tsam, thiab kev ua yeeb yam ntawmLanthhanum oxide, Tus lej xide prase, thiabneodymium oxidenyob ib ncig ntawm 90%.
Los ntawm 1979 txog 1983, BaotouTsis tshua muaj ntiaj tebKev Tshawb Fawb Lub Koom Haum thiab Beijing Cov Hlau Uas Tsis Muaj Hlau Hlau Tsim Tsim Lub Koom Haum Tsim P507 Hydrochloric Acid SystemTsis tshua muaj ntiaj tebCov txheej txheem sib cais tawm siv baotou tsawg lub ntiaj teb ore yog cov khoom siv raw kom tau rau ib leegTsis tshua muaj ntiaj tebcov khoom lag luam (purity 99% rau 99.95%) ntawmlus qhia, xiIAB, Preaseymium, neodymium, samar, thiabgadolinium, raws lihuab cuathiabterbiumTxhim kho cov khoom lag luam. Cov txheej txheem luv luv, txuas ntxiv mus, thiab cov khoom purity tau siab.
Thaum ntxov xyoo 1980s, Beijing Beijing Mineals Kev Tshawb Fawb Hluav Taws Xob Txuas Lus nrog Jiujiant Lub Tuam Txhab "Kev tshawb fawb thiab ua tiav cov txheej txheem thev naus laus zis ua keTsis tshua muaj ntiaj tebCov ntsiab lus los ntawm Longnan MixedTsis tshua muaj ntiaj tebSiv P507 Hydrochloric acid system.
Xyoo 1983, Jiujiang Tsis Koom Tes Smelter Saws Cov Txheej Txheem Kev Tshawb Fawb ntawm Lub Koom Haum Me Nyuam yaus "Naphthenic Acid Hydrochloric Qebyttrium oxidelos ntawm Longnan sib xyaw qis ntawm lub ntiaj teb "los tsim cov fluorescent qibyttrium oxide, txo tus nqi ntawmyttrium oxidethiab ntsib qhov kev thov rauyttrium oxideRau cov xim TV hauv Suav teb.
Hauv xyoo 1984, Beijing General Institute of tsis yog cov hlau tsis tau kawm tiav kev sib cais ntawm kev sib cais ntawm cov kev ua kom muaj kev huvterbium oxideSiv P507 Extraction Resin SivterbiumCov tshuaj uas tau txig tau cov ntaub ntawv raw hauv Suav teb.
Xyoo 1985, Beijing Minefieldrous Cov Hlau Kev Tshawb Fawb Txog Lub Koom Haum Naphthenic Acid Cuam Tshuamyttrium oxidecov txheej txheem thev naus laus zis mus rau yav dhau los German ywj pheej koom pheej rau 1.71 lab cov koom pheej Swiss Francs, uas yog thawj zaugTsis tshua muaj ntiaj tebSib cais cov txheej txheem tshuab exported los ntawm Tuam Tshoj.
Txij xyoo 1984 txog 1986, Peking University ua tiav kev sim lag luam ntawm LA / CE / PR nyob rau hauv lub P507-HCL system ntawm lub thib pebTsis tshua muaj ntiaj tebNroj tsuag ntawm baosteel. Ntau tshaj li 98%Tus lej xide prase, 99.5%Lanthhanum oxide, ntau tshaj 85%cerium oxide, thiab 99%neodymium oxidetau txais. Xyoo 1986, Shanghai Yeleli Yelel chemical thov cov qauv tsim nyog ntawm P507-HCL System Lub teeb tsis tshua muaj kev sib cais ntawm lub ntiaj teb sib cais cov txheej txheem. Cov kev sim ua ntsuas cov nplai ncaj qha nthuav tawm cov Cascade extraction txoj kev tsim qauv rau 100 tons, fortly luv lub voj voog thov cov txheej txheem tshiab rau kev tsim khoom.
Txij li xyoo 1986 txog rau 1989 txog 1989, Baunou Rare Earth Kev Tshawb Fawb Kev Tshawb Fawb, uas yog cov khoom siv sib xyaw ua ke, thiab Beijing Cov txheej txheem luv luv, raug nqi, thiab hloov tau.
Los ntawm 1990 txog 1995, Beijing Beijing MEsals cov hlau Kev Tshawb Fawb Lub Koom Haum thiab BaotouTsis tshua muaj ntiaj tebKev Tshawb Fawb Txog Lub Chaw Haujlwm Sib Koom Tes Ua Raws Li Lub Tebchaws "Yim Tsib Xyoo Npaj Kev Tshawb Fawb" Kev Tshawb Fawb thiab Kev Tshawb Fawb Txog Kev Ua Yeeb Yam Siab Ib LeegTsis tshua muaj ntiaj tebRho tawm thev naus laus zis ". Kaum rau ib qhoTsawg lub ntiaj teb oxideCov khoom lag luam muaj ntau yam ntau dua 99.999% rau 99.999% tau npaj siv cov qauv chromatography, thiab cation sib pauv cov qauv chromatography, ntsig txog. Cov txheej txheem no tau mus txog qib kev nce qib hauv ntiaj teb thiab yeej lub teb chaws "yim tsib xyoos phiaj xwm" qhov kev npaj ua haujlwm loj.
Hauv 2000, Beijing MEAM Kev Tshawb Fawb Cov Hluav Taws Xob ua tiav tau ua tiav cov electrolytic txoj kev los npaj cov kev coj siab zooEuropium oxideCov. Vim tias tsis txhob muaj kuab paug ntawm zinc hmoov ntawm cov khoom, cov txheej txheem no tuaj yeem rho tawmEuropium oxidenrog kev coj dawb huv ntawm 5n-6n hauv ib qho mus. Nyob rau hauv 2001, ib txoj kab ntau lawm ib pawg ntawm 18 tons ntawm high-purityEuropium oxidetau tsim ntawm gansuTsis tshua muaj ntiaj tebTuam txhab thiab muab tso rau hauv kev ua haujlwm xyoo ntawd.
Hauv cov ntsiab lus, SuavTsis tshua muaj ntiaj tebKev sib cais thiab cov thev naus laus zis thev naus laus tuaj yeem hais tau tias yog coj hauv lub ntiaj teb, xws li naphthenic acid extraction sib cais ntawmyttrium oxideloj dua 5n, p507 extraction txoj kev npaj rau kev npajLanthhanum oxideloj dua 5nn, kev txo cov electrolytic txo cov txheej txheem lossis cov qauv alkalinity rau kev npajEuropium oxideloj dua 5n, thiab lwm yam, qib kev lag luam tswj tau qis, thiab qee qhov kev lag luam muaj qhov tsis zoo ruaj khov thiab muaj txiaj ntsig ntawm kev ua kom siabTsis tshua muaj ntiaj tebCov khoom lag luam. Yog li ntawd, nws yog ib qho tsim nyog los txhim kho theem ntawm kev lag luam.
Lub sij hawm ncua: Nov-02-2023