1. Kev npaj cov khoom siv raw: Cov khoom siv tseem ceeb ntawm lub ntiaj teb tsis tshua muaj chloride yog cov av tsis tshua muaj oxides thiab hydrochloric acid. Lub ntiaj teb tsis tshua muaj oxides tuaj yeem tau txais los ntawm qhov txiaj ntsig ntawm lub ntiaj teb tsis tshua muaj ores, calcination ntawm ores thiab dej leaching extraction. Hydrochloric acid yuav tsum tau distilled thiab concentrated los txhim kho nws purity.
2. Dissolution cov tshuaj tiv thaiv: Tsis tshua muaj lub ntiaj teb oxides yog tov nrog hydrochloric acid nyob rau hauv ib qho kev faib ua feem thiab yaj nyob rau hauv ib tug tsim nyog kub. Cov tshuaj tiv thaiv kub, nplawm nrawm, thiab lub sijhawm tshuaj tiv thaiv yuav tsum tau tswj xyuas thaum lub sijhawm cov tshuaj tiv thaiv kom ntseeg tau tias cov tshuaj tiv thaiv tau ua tiav thiab cov txiaj ntsig tau nce ntxiv.
3. Cov tshuaj tiv thaiv chlorination: Tom qab cov tshuaj tiv thaiv dissolution tiav lawm, cov tshuaj uas tsis tshua muaj hauv ntiaj teb ntsev yog chlorinated. Cov xwm txheej ntawm cov tshuaj chlorination muaj xws li kub, hom thiab tus nqi ntawm chlorinating tus neeg sawv cev, thiab lwm yam, uas muaj kev cuam tshuam tseem ceeb rau purity thiab crystal daim ntawv ntawm cov khoom.
4. Kev sib cais crystallization: Tom qab cov tshuaj tiv thaiv chlorination tiav, qhov tshwm sim tsis tshua muaj lub ntiaj teb cov tshuaj chloride yog crystallized thiab sib cais. Kev sib cais crystallization tuaj yeem ua tiav los ntawm kev tswj tsis tau xws li qhov kub thiab txias, concentration, thiab pH. Qhov tshwm sim tsis tshua muaj lub ntiaj teb chloride crystals tuaj yeem ua kom zoo ntxiv thiab ua kom huv.
5. Kev ziab thiab ntim: Cov pob zeb uas tsis tshua muaj hauv ntiaj teb chloride tau qhuav kom tshem tawm cov dej noo. Tom qab ntawd, cov khoom qhuav yog ntim los xyuas kom meej qhov zoo thiab txee lub neej ntawm cov khoom.