Brazilian graphite
Jan 22, 2021
Brazil' s graphite tso zis nyob rau hauv thib peb nyob rau hauv lub ntiaj teb no, accounting rau 7.5% ntawm lub ntiaj teb no' s graphite tso zis. Graphite ntau lawm tau ruaj khov nyob rau hauv xyoo tas los no.
Xyoo 2009, graphite ntau lawm yog 76,000 tons. Brazil National Graphite Co., Ltd. (National de Grafite) yog lub teb chaws tus tsim graphite tseem ceeb thiab yog ib lub ntiaj teb cov neeg tsim khoom loj tshaj plaws ntawm ntuj crystalline graphite. Nws muaj 3 crystalline graphite mines hauv Minas Gerais, Lub peev xwm ntawm graphite yog 52,000 tons / xyoo, uas suav txog li 2/3 ntawm Brazil tag nrho cov zis; Txhua lub mine muaj cov graphite ua cov nroj tsuag, cov ntsiab lus ntawm cov ore raw ntawm ltaperica graphite ore yog 16%, thiab cov txheej txheem cov khoom muaj peev xwm ntawm 14,400 tons / xyoo, graphite cov khoom siv rau roj teeb, hluav taws xob txhuam thiab lubricants; Salto de Divsa graphite ua cov nroj tsuag tsim cov graphite loj, uas yog siv rau hauv cov ntaub ntawv refractory, crucibles, metallurgical pwm thiab cov khoom muaj peev xwm ntawm high-carbon steel additives tau nthuav dav mus rau 14,400 tons / xyoo;
Pedra Azul yog qhov loj tshaj plaws graphite deposit nyob rau hauv Brazil, nrog ib tug graphite ntau lawm muaj peev xwm ntawm 45,800 tons / xyoo. Brazil National Graphite Co., Ltd. npaj yuav kho cov qauv ntawm cov khoom graphite, tsim thiab tsim cov khoom tshiab spheroidized graphite rau kev lag luam roj teeb, suav nrog cov roj teeb loj lithium-ion rau tsheb fais fab. Lwm qhov tseem ceeb graphite tsim nyob rau hauv Brazil yog Grafita MG Ltd., uas kuj mines graphite nyob rau hauv Minas Gerais cheeb tsam. Mag-nesita, lub tuam txhab Brazilian refractory, npaj tsim cov graphite minerals nyob rau sab hnub tuaj Brazil. Lub peev xwm ntawm graphite yuav ncav cuag 40,000 tons hauv ib xyoos hauv ob xyoos. Lub tuam txhab' txoj kev loj hlob yuav nthuav dav mus rau cov khoom siv hluav taws xob hauv av nrog lub hom phiaj ntawm kev ua kom nws tus kheej txaus hauv kev muab cov khoom siv graphite raw khoom.
