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Muas Hlau thiab Minerals

Koj tseem nyob ntawm no: Tsev>DAB TSI PEB UA LI CAS>Muas Hlau thiab Minerals

Tantalum
tooj-5
Tantalum
tooj-5

Tantalum Niobium Ore Mine Concentrates


NCO NTSOOV
Hauj lwm

cov Tantalum Niobium Ore thiab Lub ntiajteb txawj nqus peb muab:


Ta

> 20%

Nb

 > 2%



Tantalum Production

Ua Kom Haum

Kev kho kom zoo ntawm tantalum los ntawm nws cov ore yog ib qho ntawm cov txheej txheem sib cais ntau dua hauv kev lag luam metallurgy. Qhov teeb meem tseem ceeb yog tias tantalum ores muaj cov niobium ntau, uas muaj cov tshuaj lom neeg yuav luag zoo ib yam rau cov Ta. Ntau tus txheej txheem tau tsim los daws qhov teeb meem no.

Niaj hnub no, kev sib cais yog ua tiav los ntawm hydrometallurgy. Extraction pib nrog leaching cov ore nrog hydrofluoric acid ua ke nrog sulfuric acid los yog hydrochloric acid. Cov kauj ruam no tso cai rau cov tantalum thiab niobium sib cais los ntawm ntau yam tsis yog xim hlau impurities hauv pob zeb. Txawm hais tias Ta tshwm sim raws li ntau yam minerals, nws yog yooj yim sawv cev raws li cov pentoxide, vim hais tias feem ntau oxides ntawm tantalum (V) coj zoo ib yam li cov xwm txheej no.

Niobium Production

Tom qab kev sib cais los ntawm lwm yam minerals, sib xyaw oxides ntawm tantalum Ta2O5 thiab niobium Nb2O5 tau txais. 
Me me ntawm oxidizers xws li sodium nitrate yog ntxiv los txhim kho cov tshuaj tiv thaiv. Qhov tshwm sim yog aluminium oxide thiab ferroniobium, ib qho alloy ntawm hlau thiab niobium siv hauv steel ntau lawm.Feroniobium muaj li ntawm 60 thiab 70% niobium. Tsis muaj hlau oxide, cov txheej txheem aluminothermic yog siv los tsim niobium. Ntxiv purification yog tsim nyog kom ncav cuag qib rau superconductive alloys. Electron beam melting nyob rau hauv lub tshuab nqus tsev yog txoj kev siv los ntawm ob tug loj distributors ntawm niobium.

Specifications

Symbol: Tau

Atomic naj npawb: 73

Kub taw tes: 9,854 ° F (5,457 ° C)

Melting point: 5,468 ° F (3,020 ° C)


Symbol: Nb

Atomic naj npawb: 41

Kub taw tes: 8,571 ° F (4,744 ° C)

Melting point: 4,476 ° F (2,469 ° C)


Thov hu rau peb yog tias koj tuaj yeem muab cov khoom zoo li no lossis cov khoom zoo sib xws, peb yuav muab cov xwm txheej zoo tshaj plaws rau kev koom tes.

Hu Rau Peb