I-Flake graphite nge-high pressure metamorphism, ngokuvamile eluhlaza okwesibhakabhaka, eluhlaza okwesibhakabhaka, onsundu ngokuphuzi noma okumhlophe okumpunga, ekhiqizwa kakhulu ku-neess, schist, crystalline limestone kanye ne-skarn, amaminerali e-symbionic ayinkimbinkimbi kakhulu, ingxenye eyinhloko i-flake crystalline crystalline carbon, ehambisana ne-graphite insimbi ye-crystalline flake noma ukuma kweqabunga, okumnyama noma okumpunga kwensimbi, kwenzeka kakhulu ku-feldspar, quartz noma diopside, izinhlayiya ze-tremolite phakathi.Inokuhlelwa kokuqondisa okusobala, okuhambisana nesiqondiso sesendlalelo.I-Flake graphite ngokuvamile i-exocrystalline graphite yemvelo, isakhiwo se-lamellar, ukuma kwayo kufana nesilinganiso senhlanzi, uhlelo lwe-crystal ene-hexagonal, isimo sekristalu singcono, ubukhulu bezinhlayiyana ubukhulu bungu-0.05 ~ 1.5μm, ukushuba kwesiqephu 0.02 ~ 0.05 mm, i-flake enkulu kunazo zonke ingafinyelela ku-4 ~ 5mm, okuqukethwe kwekhabhoni yegraphite ngokuvamile ku-2% ~ 5% noma 10% ~ 25%.
Indawo yokukhiqiza ye-flake graphite itholakala ikakhulukazi e-Asia, e-China naseSri Lanka, e-Ukraine yaseYurophu, eMozambique, eMadagascar, eTanzania naseNingizimu Melika eBrazil nakwamanye amazwe, iMozambique, iTanzania, iMadagascar nakwamanye amazwe acebile (super) ama-flake graphite aphezulu, inani lezimboni.
I-"MINERAL COMMODITY SUMMARIES 2021" ekhishwe yi-US Geological Survey (USGS) ikhombisa ukuthi ekupheleni kuka-2020, izindawo zokugcina zemvelo ezifakazelwe ze-flake graphite emhlabeni zingamathani ayizigidi ezingama-230, okukhona kuwo iChina, iBrazil, iMadagascar kanye neMozambique. ngaphezu kwama-84%.Njengamanje, abakhiqizi abakhulu be-flake graphite yemvelo yiChina, iBrazil neNdiya.Kusukela ngo-2011 kuya ku-2016, ukukhiqizwa komhlaba wonke kwe-natural flake graphite kwahlala kuzinzile ku-1.1 kuya ku-1.2 million t/a.Ithonywe uchungechunge lwezici, yehla yafinyelela kumathani ayi-897,000 ngo-2017;Ngo-2018, ikhuphuke kancane yafika ku-930,000 t;Ngo-2019, ngenxa yokwanda kokuhlinzekwa kwe-natural flake graphite eMozambique, ibuyele ku-1.1 million t.Ngo-2020, ukukhiqizwa kwe-flake ye-graphite yaseShayina kuzoba amathani angu-650,000, okuhlanganisa cishe u-59% womkhiqizo ophelele womhlaba, futhi ungumkhiqizi omkhulu kunabo bonke emhlabeni;Ukukhiqizwa kwe-graphite yaseMozambique okuyi-120,000 t, okubalelwa ku-11% wesamba somkhiqizo womhlaba.
Isikhathi sokuthumela: Jun-12-2023