Cov txheej txheem synthesis ntawmtantalum pentachlorideFeem ntau suav nrog cov kauj ruam hauv qab no:
1 、 Raw khoom npaj
Npaj high-puritytantalum hlauthiab high-purity chlorine los yog hydrogen chloride (HCl) ua raw khoom. Lub purity ntawmtantalum hlaumuaj kev cuam tshuam tseem ceeb rau qhov purity ntawm cov khoom kawg.
2, Chlorination tshuaj tiv thaiv
Direct chlorination txoj kev:Tantalum hlauyog txiav los yog hmoov, thiab ces muab tso rau hauv ib tug chlorine gas kwj rau chlorination cov tshuaj tiv thaiv ntawm ib tug kub ntawm 170-250. Chlorine gas reacts nrog tantalum los tsimtantalum pentachloride. Cov tshuaj tiv thaiv no kuj tuaj yeem ua tiav siv HCl, tab sis nws yuav tsum tau nqa tawm ntawm qhov kub siab dua (xws li 400).
Indirect chlorination method: Tantalum pentachloride kuj tuaj yeem tau txais los ntawm reacting tantalum pentoxide nrog thionyl chloride (SOCl2) ntawm 240 ° C. Qhov sib npaug ntawm cov tshuaj tiv thaiv yog: Ta2O5 + 5 SOCl2 → 2 TaCl5 + 5 SO2.
3. Kev sib cais thiab kev huv
Txias cov roj uas tsim los ntawm cov tshuaj chlorination kom condense rau hauv cov kua.
Cais thiab purify kuatantalum pentachloridelos ntawm impurities. Feem ntau, distillation thiab lwm txoj kev yog siv los cais cov impurities sib txawv raws li lawv qhov sib txawv ntawm qhov sib txawv. Cov kauj ruam no yog qhov tseem ceeb los xyuas kom meej qhov purity ntawmtantalum pentachloride.
4 、 Kev kho kom qhuav
Qhuav lub cais thiab purifiedtantalum pentachloridekom tshem tawm cov av noo thiab impurities. Kev kho kom qhuav yog qhov tseem ceeb rau kev tswj xyuas qhov ruaj khov thiab purity ntawm tantalum pentachloride.
Post lub sij hawm: Sep-05-2024