Mokhoa oa ho hlaphoheloa ha sodium sulfate tlhahisong ea betri ea lithium
Ts'ebetsong ea ho sebelisa hape libeteri tsa lithium tse litšila tsa ternary le libeteri tsa phosphate ea tšepe ea lithium, sulfuric acid le caustic soda li fetoloa letsoai la sodium sulfate ka lebaka la litlhoko tsa theknoloji. Tharollo e tala e nang le sodium sulfate e kenyelletsa haholo-holo tharollo ea ho khutlisa sistimi ea letsoai la lithium, tharollo kamora ho kopanngoa ha nickel-cobalt ea ternary, brine ea pele ho kalafo ea ternary, tharollo kamora ho kolobisoa ha phosphate ea tšepe ea lithium, brine ea ho kolobisoa ha phosphate ea tšepe ea lithium, tharollo kamora ho kolobisoa ha lithium ka letsoai la lithium, tharollo e setseng ea ho ntšoa ha letsoai la nickel-cobalt-manganese, tharollo kamora ho kopanngoa ha nickel-cobalt-manganese, jj. Litharollo tsena li hloekisoa ka kotloloho kapa ka har'a sistimi ea mouoane ea MVR, 'me li kristale le ho omisa ka ho fetisisa ho hlahisa lihlahisoa tsa sodium sulfate tse sa hydrous. Ts'ebetso e kholo ea tlhahiso ke e latelang:
1. Kopanya mokelikeli
Mokelikeli oa tlhahiso ea nickel-cobalt ea Ternary, brine e ntšitsoeng pele e phekotsoeng ea ternary, phosphate ea tšepe ea lithium kamora ho lula lithium, brine ea ho ntša phosphate ea tšepe ea lithium, letsoai la lithium kamora ho lula lithium nickel cobalt manganese letsoai le ntšoang masala a nickel, mokelikeli oa tlhahiso ea nickel cobalt manganese le metsi a mang a tsoakiloeng.
2. Ho tlosa litšila le ho hloekisa
Kamora ho lokisa tharollo ea sodium sulfate ka botebo ba alkali e metsi + sodium sulfide ho tlosa litšepe tse boima (tobetsa sefa se senyenyane sa nickel le cobalt slag, u khutlisetse lijong bakeng sa ho sebelisoa hape), fetola PH ho 5~7; Kamora hore tlhahlobo e tšoanelehe, tanka ea mokelikeli o tala e kenngoa, 'me tanka ea mokelikeli o tala e bapala karolo ea ho boloka le ho laola mokelikeli o tala ho fihlela ts'ebetso e tsoelang pele le e tsitsitseng ea mouoane oa metsi a litšila oa MVR. Tanka ea mokelikeli o tala e na le pompo ea mokelikeli o tala. Pompo ea mokelikeli o tala e tsamaisa tharollo ea metsi ea sodium sulfate ka ho lekana tsamaisong ea kalafo ea mouoane. Valve ea taolo kamora pompo ea mokelikeli o tala e lokisoa ho boloka tekano lipakeng tsa bongata ba ho phahamisa ba mokelikeli o tala le bongata ba mouoane.
3. Tharollo ea ho khutlisa
Likristale tsa sodium sulfate decahydrate tse hlahisoang ke sistimi ea letsoai la lithium li eketsoa metsing a khutsufalitsoeng le metsi a hlatsoang a lithium a ka tlas'a metsi ho etsa tharollo ea sodium sulfate e batlang e tletse, e bolokiloeng ka tankeng e arohaneng ea mokelikeli ebe e isoa ka kotloloho tsamaisong ea mouoane le mahloriso ea MVR.
4. Mouoane oa MVR le ho etsa hore tharollo ea sodium sulfate e be kristale
Tharollo ea metsi e nang le sodium sulfate e futhumatsoa ke sehatsetsi sa pele sa condensate ebe e kena ka phapusing ea mouoane ea sistimi ea kristale ea mouoane ea MVR. Sistimi ea mouoane ea MVR e na le sesebelisoa sa ho fapanyetsana mocheso se otlolohileng kamora pompo ea potoloho e qobelloang. Tlas'a ts'ebetso ea pompo ea potoloho e qobelloang, mokelikeli oa thepa o phalla ka potoloho e joalo ka phapusing ea mouoane - mocheso - pompo ea potoloho e qobelloang - mocheso - kamore ea mouoane, mokelikeli oa thepa o futhumatsoa ka har'a mocheso, 'me karohano ea khase-mokelikeli-e tiileng e bonoa ka phapusing ea mouoane. Letswai le kopaneng le romelloa sebakeng sa letsoai ke pompo ea ho ntša metsi bakeng sa ho bokella le ho arola, ebe le ntšoa ka har'a sinki ea letsoai bakeng sa ho bokella le ho bokella le ho arola, 'me qetellong le ntšoa ka har'a centrifuge bakeng sa karohano ea centrifugal. Filtrate ea centrifugal le supernatant ea karohano ea letsoai li bokelloa ka har'a tanka ea filtrate 'me li khutlisetsoa ho evaporator ea MVR bakeng sa mouoane le ho etsa kristale. Sodium sulfate e arohaneng le centrifuge e kena tsamaisong ea ho omisa.
5. Ho omisa – Ho paka
Sodium sulfate e fumanoeng ka ho etsa kristale e na le metsi a manyane, 'me ho latela boemo ba ho sebelisoa hape, ho khethoa hore na ho sebelisoe lisebelisoa tsa ho omisa ho fokotsa metsi. Lisebelisoa tsa ho omisa li ka etsoa hore li omelle bethe ka metsi (taolo ea mocheso oa ho omisa ~ 150℃), li bule bethe e thothomelang e nang le metsi le sesebelisoa sa pokello ea lerōle se tšehetsang, ebe li isoa ho bethe e thothomelang e nang le metsi ka sesebelisoa sa ho fepa ka sekurufu ho fumana lihlahisoa tsa sodium sulfate tse sa hloekang (metsi a ka tlase ho 0.5%), li pakeloa kantle ho naha.