Lithium carbonate thiab lithium hydroxide yog obsab cov khoom siv rau roj teeb, thiab tus nqi ntawm cov roj carbonate ib txwm muaj qee qhov pheej yig dua lithium hydroxide. Dab tsi yog qhov sib txawv ntawm ob yam khoom?
Firstly, nyob rau hauv cov txheej txheem ntau lawm, ob qho tib si tuaj yeem muab rho tawm los ntawm Lithium Pyroium, tus nqi sib tw tsis loj heev. Txawm li cas los xij yog tias ob tus hloov mus rau ib leeg, tus nqi ntxiv thiab cov cuab yeej siv tau, yuav tsis muaj nqi dab tsi.
Lithium carbonate yog feem ntau tsim los ntawm cov sulfuric acid acid txheej txheem, thiab sokipitated thiab qhuav los npaj lithium carbonate;
Cov kev npaj ntawm lithium hydroxide feem ntau los ntawm txoj kev alkali, uas yog, roasting lithium pyroxene thiab calcium hydroxide. Lwm tus siv txoj kev yog li ntawd - hu ua si sodium carbonate xovxwm, thiab tom qab ntawd ntxiv txiv qaub rau kev daws teeb meem lithium hydroxide.
Zuag qhia tag nrho, Lithium Pyroxene tuaj yeem siv los npaj ob lub rojbonate thiab lithium hydroxide, tab sis cov khoom siv tsis tuaj yeem sib txawv, thiab tsis muaj tus nqi loj loj. Tsis tas li ntawd, tus nqi ntawm npaj lithium hydroxide nrog Salt Lake brine yog ntau dua li kev npaj lithium carbonate.
Qhov thib ob, hauv ib feem ntawm daim ntawv thov, siab Nickel Ternary yuav siv lithium hydroxide. NCA thiab NCM811 yuav siv roj teeb qib lithiumide, thaum NCM622 thiab NCM523 tuaj yeem siv ob qho tib si lithroter thiab lithium carbonate. Thermal npaj cov roj ntsha lithium hluav taws xob phosphate (LFP) cov khoom tseem xav tau siv cov labroaster. Feem ntau, cov khoom lag luam ua los ntawm cov lithium hydroxide feem ntau ua tau zoo dua.