Hauv kev lag luam, graphite ntuj raug muab faib ua crystalline graphite thiab cryptocrystalline graphite raws li daim ntawv siv lead ua. Cov crystalline graphite zoo dua crystallized, thiab lub phaj siv lead ua txoj kab uas hla yog >1 μm, uas feem ntau yog tsim los ntawm ib qho siv lead ua lossis ib qho siv lead ua flaky. Crystalline graphite yog ib qho ntawm 24 cov zaub mov tseem ceeb hauv lub tebchaws. Kev tshawb nrhiav thiab kev txhim kho ntawm graphite tau teev nyob rau hauv National Mineral Resources Planning (2016-2020) thawj zaug. Qhov tseem ceeb ntawm crystalline graphite yog coj los ntawm cov tswv yim xws li cov tsheb fais fab tshiab thiab graphene. Kev nce ntxiv tseem ceeb.
Raws li US Geological Survey (USGS), txij li thaum kawg ntawm xyoo 2017, lub ntiaj teb cov graphite reserves yog li ntawm 270 lab tons, feem ntau faib nyob rau hauv Turkey, Tuam Tshoj thiab Brazil, uas Tuam Tshoj yog dominated los ntawm crystalline graphite thiab Qaib ntxhw yog cryptocrystalline graphite. Cryptocrystalline graphite muaj tus nqi qis thiab kev loj hlob thiab kev siv tsawg, yog li crystalline graphite txiav txim siab thoob ntiaj teb graphite qauv.
Raws li Suav Academy of Sciences, Tuam Tshoj cov crystalline graphite suav txog ntau dua 70% ntawm lub ntiaj teb tag nrho. Ntawm lawv, Heilongjiang xeev cov crystalline graphite peev xwm suav txog 60% ntawm Tuam Tshoj thiab ntau dua 40% ntawm lub ntiaj teb, uas ua lub luag haujlwm txiav txim siab. Lub ntiaj teb cov neeg tsim khoom loj ntawm crystalline graphite yog Tuam Tshoj, ua raws li Is Nrias teb thiab Brazil.
Kev faib cov peev txheej
Keeb kwm yav dhau los ntawm cov khoom siv crystalline graphite hauv ntau thaj chaw ntawm Suav teb
Cov yam ntxwv ntawm cov nplai loj ntawm cov pob zeb graphite crystalline hauv Suav teb thiab cov txiaj ntsig ntawm cov nplai loj (> 0.15mm)
Heilongjiang xeev
Xeev Heilongjiang muaj ntau qhov chaw faib graphite, thiab nws tseem zoo heev hauv Hegang thiab Jixi. Nws thaj tsam sab hnub tuaj yog lub pas dej loj tshaj plaws ntawm crystalline graphite hauv lub tebchaws, nrog rau cov chaw tso graphite loj thiab loj heev xws li Jixi Liumao, Luobei Yunshan thiab Muling Guangyi. Cov chaw zeb graphite tau pom hauv 7 ntawm 13 lub nroog hauv xeev. Cov peev txheej kwv yees yog tsawg kawg 400 lab tons, thiab cov peev txheej muaj peev xwm yog li 1 billion tons. Mudanjiang thiab Shuangyashan muaj cov kev tshawb pom tseem ceeb, tab sis qhov zoo ntawm cov peev txheej tau txiav txim siab tag nrho. Graphite zoo tseem yog Hegang thiab Jixi tswj hwm. Nws tau kwv yees tias cov peev txheej rov qab tau ntawm graphite hauv xeev tuaj yeem ncav cuag 1-150 lab tons (cov khoom siv mineral).
Thaj Chaw Tswjfwm Hauv Tebchaws Mongolia
Cov khoom khaws cia ntawm crystalline graphite hauv Inner Mongolia yog qhov thib ob tsuas yog rau Heilongjiang, feem ntau muab faib rau Inner Mongolia, Xinghe, Alashan thiab Baotou.
Cov qib carbon ruaj khov ntawm graphite ore hauv thaj chaw Xinghe feem ntau yog nruab nrab ntawm 3% thiab 5%. Qhov ntsuas ntawm qhov ntsuas yog > 0.3 hli, suav txog li 30%, thiab qhov ntsuas ntawm qhov ntsuas yog > 0.15 hli, uas tuaj yeem ncav cuag ntau dua 55%. Hauv thaj chaw Alashan, piv txwv li, coj Chahanmuhulu graphite deposit ua piv txwv, qib nruab nrab ntawm cov hlau ruaj khov carbon yog li 5.45%, thiab feem ntau ntawm cov nplai graphite yog > 0.15 hli. Lub graphite mine hauv thaj chaw Chaganwendu ntawm Damao Banner hauv thaj chaw Baotou muaj qib carbon ruaj khov nruab nrab ntawm 5.61% thiab qhov ntsuas txoj kab uas hla ntawm feem ntau <0.15 hli.
Xeev Sichuan
Cov khoom siv graphite crystalline hauv xeev Sichuan feem ntau yog faib rau hauv Panzhihua, Bazhong thiab Aba Prefectures. Qhov nruab nrab ntawm cov pa roj carbon ruaj khov hauv graphite ore hauv Panzhihua thiab Zhongba thaj chaw yog 6.21%. Cov ore feem ntau yog cov nplai me me, thiab qhov nplai ntawm qhov nplai tsis ntau tshaj 0.15 hli. Qhov ruaj khov carbon qib ntawm crystalline graphite ore hauv thaj chaw Nanjiang ntawm Bazhong City yog 5% txog 7%, qhov siab tshaj plaws yog 13%, thiab feem ntau ntawm cov nplai graphite yog > 0.15 hli. Qhov ruaj khov carbon qib ntawm graphite ore hauv Aba Prefecture yog 5% ~ 10%, thiab feem ntau cov nplai graphite yog <0.15 hli.
Shanxi xeev
Xeev Shanxi tau pom 8 qhov chaw uas tau txheeb xyuas cov khoom siv crystalline graphite, feem ntau yog faib nyob rau hauv thaj chaw Datong. Qhov nruab nrab ntawm cov pa roj carbon ruaj khov hauv qhov tso nyiaj feem ntau yog ntawm 3% thiab 4%, thiab feem ntau ntawm cov nplai graphite yog >0.15 hli. Kev sim hnav khaub ncaws qhia tau hais tias qhov txiaj ntsig loj sib xws yog li 38%, xws li lub qhov tsua graphite hauv Qili Village, Xinrong District, Datong.
Xeev Shandong
Cov khoom siv graphite crystalline hauv xeev Shandong feem ntau yog faib rau hauv Laixi, Pingdu thiab Laiyang. Qhov nruab nrab ntawm cov pa roj carbon ruaj khov hauv lub tsev so sab qab teb sab hnub poob ntawm Lai yog li 5.18%, thiab txoj kab uas hla ntawm feem ntau cov ntawv graphite yog ntawm 0.1 thiab 0.4 hli. Qhov nruab nrab ntawm cov pa roj carbon ruaj khov hauv Liugezhuang graphite mine hauv Pingdu City yog li 3.34%, thiab qhov ntsuas txoj kab uas hla feem ntau yog <0.5 hli. Pingdu Yanxin Graphite Mine muaj qhov nruab nrab ntawm cov pa roj carbon ruaj khov ntawm 3.5%, thiab qhov ntsuas ntawm qhov ntsuas yog> 0.30 hli, suav txog 8% txog 12%. Hauv kev xaus, qhov nruab nrab ntawm cov pa roj carbon ruaj khov hauv cov chaw graphite hauv Shandong feem ntau yog ntawm 3% thiab 5%, thiab qhov sib piv ntawm cov nplai> 0.15 hli yog 40% txog 60%.
txheej txheem txheej txheem
Tuam Tshoj cov graphite deposits muaj cov qib kev lag luam zoo, uas zoo rau kev khawb av, thiab qib crystalline graphite tsis tsawg dua 3%. Hauv 10 xyoo dhau los, Tuam Tshoj cov khoom tsim tawm txhua xyoo ntawm graphite yog ntawm 60,000 thiab 800,000 tons, uas cov crystalline graphite tsim tawm txog li 80%.
Muaj ntau tshaj ib txhiab lub tuam txhab ua graphite hauv Suav teb, thiab cov khoom lag luam yog cov khoom siv graphite xws li graphite nruab nrab thiab siab carbon, graphite purity siab thiab graphite hmoov zoo, nrog rau cov graphite thiab cov khoom siv carbon uas nthuav dav. Lub xwm txheej ntawm lub tuam txhab feem ntau yog lub xeev khiav, uas feem ntau faib rau hauv Shandong, Inner Mongolia, Hubei, Heilongjiang, Zhejiang thiab lwm qhov chaw. Lub tuam txhab graphite mining uas yog lub xeev muaj lub hauv paus ruaj khov thiab muaj txiaj ntsig zoo hauv kev siv tshuab thiab cov peev txheej.
Graphite siv dav hauv hlau, metallurgy, foundry, khoom siv kho tshuab, tshuaj lom neeg thiab lwm yam teb vim nws cov khoom zoo heev. Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, kev siv cov khoom siv graphite tshiab hauv kev lag luam high-tech xws li lub zog tshiab, kev lag luam nuclear, cov ntaub ntawv hluav taws xob, aerospace thiab kev tiv thaiv maj mam raug tshawb nrhiav, thiab nws suav hais tias yog ib qho peev txheej tseem ceeb rau kev txhim kho cov lag luam tshiab. Tam sim no, Tuam Tshoj cov khoom graphite feem ntau yog siv rau hauv cov ntaub ntawv refractory, castings, seals, graphite tshwj xeeb thiab lwm yam teb, ntawm cov ntaub ntawv refractory thiab castings siv ntau tshaj plaws.
Nrog rau kev txhim kho tas mus li ntawm kev lag luam zog tshiab, qhov kev thov rau graphite yav tom ntej yuav txuas ntxiv mus.
Kev kwv yees ntawm kev thov graphite hauv Suav teb xyoo 2020
Lub sijhawm tshaj tawm: Kaum Ib Hlis-25-2019