Niobium Inventory

Feb 27, 2024

Niobium tau kwv yees tias muaj ntau ntawm 20 feem ntawm ib lab nyob rau hauv lub ntiaj teb crust, nyob rau hauv qeb 33rd ntawm tag nrho cov ntsiab. Qee cov kws tshawb fawb ntseeg tias niobium muaj ntau dua thoob plaws ntiaj teb, tab sis feem ntau yog nyob hauv lub ntiaj teb cov tub ntxhais vim nws qhov ntom ntom. Niobium tsis tshwm sim hauv nws lub xeev ntshiab hauv qhov xwm txheej, tab sis ua ke nrog lwm cov ntsiab lus los tsim cov zaub mov. Cov zaub mov no feem ntau kuj muaj cov ntsiab lus tantalum, xws li columbite (ie, columbite, (Fe, Mn) (Nb, Ta) 2O6) thiab coltan ((Fe, Mn) (Ta, Nb) 2O6). Minerals uas muaj niobium thiab tantalum feem ntau yog cov khoom lag luam hauv pegmatites thiab alkaline intrusive pob zeb. Lwm cov minerals yog calcium, uranium thiab thorium, thiab niobates ntawm lub ntiaj teb tsis tshua muaj cov ntsiab lus, xws li pyrochlore ((Na, Ca) 2Nb2O6 (OH, F)) thiab dub tsawg kub ore ((Y, Ca, Ce, U, Th) ( Nb,Ta,Ti)2O6). Cov niobium deposits loj no tshwm sim nyob ib ncig ntawm carbonatite (ib carbonate, silicate igneous pob zeb), uas kuj yog ib feem ntawm pyrochlore.

Niobium Cb-752 AlloyNiobium Cb-752 AlloyNiobium Cb-752 Alloy

 

 

Brazil thiab Canada muaj qhov loj tshaj plaws deposits ntawm pyrochlore. Ob lub teb chaws nrhiav tau cov deposits nyob rau hauv 1950s thiab tseem yog cov loj tshaj plaws producers ntawm niobium concentrates. Lub ntiaj teb cov deposits loj tshaj plaws nyob rau hauv ib tug carbonate intrusive cheeb tsam nyob rau hauv Arasha, Minas Gerais, Brazil, teej tug mus rau CBMM (Brazilian tuam txhab rau Mineral thiab Metallurgy); Lwm qhov tso nyiaj nyob rau hauv Goiás, koom nrog Anglo American Resources, kuj nyob rau hauv carbonate intrusive pob zeb. Ob lub mines no suav txog 75% ntawm lub ntiaj teb tag nrho cov khoom tsim tawm. Qhov thib peb loj tshaj plaws mine nyob ze Saguenay, Quebec, Canada, thiab tsim 7% ntawm lub ntiaj teb no cov zis.

 

Koj Tseem Yuav Zoo Li