Lithium roj teeb recycling yog hais txog cov txheej txheem ntawm kev kho cov roj teeb lithium uas tau mus txog qhov kawg ntawm lawv lub neej kev pab cuam tom qab siv ntev, thaum lawv qhov kev ua tau zoo tau degraded mus rau qhov tsis tuaj yeem siv rau lawv lub hom phiaj qub. Qhov no suav nrog cov txheej txheem ntawm lub cev, tshuaj lom neeg, lom neeg, thiab kev siv cov txheej txheem ua kom zoo thiab ua tau zoo thiab sib txawv ntawm cov ntaub ntawv tseem ceeb hauv lawv, yog li rov ua kom lawv cov nqi hluav taws xob.
Hom Lithium Battery Recycling Technologies
Los ntawm txoj kev xav dav dav, lithium roj teeb siv thev naus laus zis feem ntau tau faib ua ob hom:rov ua duathiabtheem nrabkev siv.
Regenerative recyclingthev naus laus zis suav nrog ua ntej- ua tiav cov roj teeb lithium kom tso tawm tag nrho, ua raws li lub cev (qhuav), tshuaj, lossis cov txheej txheem lom neeg los cais cov hlau muaj txiaj ntsig zoo li npib tsib xee, cobalt, lithium, thiab manganese-nrog rau lwm cov ntaub ntawv rov qab los ntawm cov qauv roj teeb - mus rau hauv cov hlau sib xyaw lossis cov khoom siv raw rau cov lithium tshiab.
Hierarchical siv rov ua dua tshiabthev naus laus zis suav nrog kev tshem tawm, tshuaj xyuas, txheeb xyuas, thiab rov kho cov hlwb lossis cov pob roj teeb los ntawm cov roj teeb lithium pov tseg rau hauv cov roj teeb tshiab, noj qab nyob zoo. Cov no yog tom qab ntawd rov qab siv dua nyob rau hauv ntau daim ntawv thov. Txoj hauv kev no tseem ceeb ua rau muaj kev teeb tsa, txheej txheej, thiab siv tau zoo ntawm cov roj teeb lithium.
Lithium Battery Recycling Process Flow
Lub Cev Siv Lub Tshuab Siv Lub Cev: Ib txheej txheem uas rho tawm cov khoom muaj txiaj ntsig los ntawm cov khoom siv sab hauv ntawm qhov kawg - ntawm - roj teeb lub neej - xws li cov khoom siv hluav taws xob, cov khoom siv tam sim no, thiab cov roj teeb ua haujlwm - los ntawm ntau cov kauj ruam suav nrog kev sib tsoo, tshuaj ntsuam xyuas, sib nqus sib nqus, sib tsoo zoo, thiab kev txheeb xyuas. Cov ntaub ntawv rov qab no yog tom qab ua tiav rau kev rov ua dua tshiab. Cov txheej txheem tseem ceeb suav nrog cov khoom siv rov qab los tom qab crushing thiab tshuaj ntsuam xyuas, ua rau cov txheej txheem ntawm lub cev ntshiab.
Kev siv thev naus laus zis ntub dej: Tom qab dismantling thiab ua ntej- ua cov roj teeb pov tseg, lawv tau yaj hauv cov kua qaub lossis alkaline kom tshem tawm cov khoom muaj txiaj ntsig zoo. Tom qab ntawd cov hlau tseem ceeb tau rov qab los ntawm kev sib pauv ion thiab electrodeposition txoj kev. Cov txheej txheem tseem ceeb yog leaching thiab extracting electrode hmoov siv tshuaj reagents.
Pyrometallurgical Recycling Technology: Lub roj teeb casing yog stripped, thiab lub roj teeb core yog tov nrog coke thiab limestone. Tom qab txo cov roasting, cov pa roj carbon hlau uas muaj cov hlau lithium, cobalt, npib tsib xee, txhuas, thiab lwm yam khoom tau txais. fluorine thiab phosphorus los ntawm electrolyte yog solidified nyob rau hauv lub slag, uas yuav siv tau raws li additives rau lub tsev cov ntaub ntawv los yog pob zeb. Kev ua haujlwm ntxiv tom qab, nrog rau tag nrho cov txheej txheem ua tiav ntawm qhov kub thiab txias. Cov txheej txheem pyrometallurgical tseem ceeb muaj -kub pyrolysis kom tau txais cov hlau oxides.
Kev sib piv ntawm Peb Txoj Kev Rov Ua Dua Tshiab:
Cov txheej txheem ntub dej rov ua dua tshiab muab cov kev ua haujlwm siab tshaj plaws thiab paub tab technology.
① Lub cev rov ua dua tshiab nta cov txheej txheem yooj yim uas tsis tas yuav muaj tshuaj ntxiv, ua rau nws qhov kev xaiv zoo tshaj plaws rau ib puag ncig, tab sis nrog kev ua haujlwm tsis zoo.
② Kev rov ua dua ntub dej ua tiav cov txiaj ntsig zoo dua rau cov hlau muaj txiaj ntsig, muaj cov khoom siv tsawg, thiab siv cov cuab yeej paub tab; Txawm li cas los xij, cov txheej txheem yog qhov nyuaj, yuav tsum muaj cov txheej txheem ntub dej tshwj xeeb rau cov roj teeb sib txawv, ua rau tus nqi siab dua, thiab tuaj yeem ua rau muaj kuab paug ib puag ncig yog tias ua tsis raug.
③ Pyrometallurgical rov qab yog qhov yooj yim nrog kev sib raug zoo siab, haum rau loj - ua cov txheej txheem ntawm ntau hom roj teeb lithium. Txawm li cas los xij, nws xav tau kev siv hluav taws xob siab, xav tau cov cuab yeej siv tau zoo, thiab ua rau muaj teeb meem loj rau ib puag ncig.
Hydrometallurgical rov qab yog cov txheej txheem tseem ceeb. Hydrometallurgical kub rov qab tau dav lees paub rau nws qhov kev siv hluav taws xob tsawg, tus nqi rov qab siab, cov khoom lag luam siab, thiab cov khoom siv me me. Cov kauj ruam tseem ceeb hauv kev ntub dej- txheej txheem kub rho tawm cov roj teeb pov tseg suav nrog pretreatment, preprocessing, acid / alkali leaching, leachate purification, sib cais / rho tawm, thiab nag lossis daus. Lub hauv paus ntawm cov ntub dej - txheej txheem rov ua dua yog nyob rau hauv cov hlau leaching theem, uas inorganic los yog organic acids yog siv los rov qab hlau li ions rau hauv cov kua qaub.
