Flake graphite ma ke kiʻekiʻe kaomi metamorphism, polū hina hina, weathered melemele ʻeleʻele a hina keʻokeʻo, ka hapa nui i hana ʻia ma neiss, schist, crystalline limestone a me ka skarn, ʻoi aku ka paʻakikī o nā mineral symbionic, ʻo ka mea nui he flake crystalline crystalline carbon, i hui pū ʻia me ka graphite i ka ʻeleʻele no ka flake crystalline a i ʻole ke ʻano lau, ʻeleʻele a i ʻole ke kila hina hina, ka nui o ka feldspar, quartz a i ʻole diopside, nā ʻāpana tremolite ma waena.Loaʻa iā ia kahi hoʻonohonoho kuhikuhi kuhikuhi, kūlike me ke kuhikuhi o ka papa.ʻO ka flake graphite ka nui o ka graphite exocrystalline maoli, kahi ʻano lamellar, ʻo kona ʻano e like me ka unahi iʻa, he ʻōnaehana aniani hexagonal, ʻoi aku ka maikaʻi o ka mokuʻāina, ʻo ka nui o ke anawaena he 0.05 ~ 1.5μm, ʻo ka mānoanoa o ka ʻāpana he 0.02 ~ 0.05. mm, hiki i ka flake nui loa ke hiki i 4 ~ 5mm, ʻo ka ʻike kalapona o ka graphite ma kahi o 2% ~ 5% a i ʻole 10% ~ 25%.
Iecaianoaaiiuo wahi o flake graphite ua nui loa aia ma Asia, Kina a me Sri Lanka, Europe o Ukraine, Mozambique, Madagaskar, Tanzania a me South America ka Palakila a me na aina e ae, Mozambique, Tanzania, Madagascar a me na aina waiwai (super) nui flake graphite, me ka kiʻekiʻe. waiwai ʻoihana.
ʻO ka "MINERAL COMMODITY SUMMARIES 2021" i hoʻokuʻu ʻia e ka US Geological Survey (USGS) e hōʻike ana ma ka hopena o 2020, ʻo ka mālama ʻana i nā graphite flake maoli i hōʻoia ʻia i ka honua he 230 miliona tons, kahi o Kina, Brazil, Madagascar a me Mozambique moʻokāki no nā mea hou aku. ma mua o 84%.I kēia manawa, ʻo Kina, Brazil a me India nā mea hana nui o ka flake graphite maoli.Mai ka makahiki 2011 a hiki i ka 2016, ua paʻa ka hana honua o ka graphite flake maoli ma 1.1 a 1.2 miliona t/a.Hoʻopilikia ʻia e kekahi mau kumu, ua hāʻule i ka 897,000 tons i ka makahiki 2017;Ma 2018, ua piʻi mālie i ka 930,000 t;I ka makahiki 2019, ma muli o ka hoʻonui ʻana i ka hāʻawi ʻana i ka graphite flake maoli ma Mozambique, ua hoʻi i 1.1 miliona t.I ka makahiki 2020, he 650,000 tons ka hana graphite flake a Kina, e helu ana ma kahi o 59% o ka huina o ka honua, a ʻo ia ka mea hana nui loa o ka honua;Mozambique flake graphite hana o 120,000 t, helu no ka 11% o ka honua holookoa.
Ka manawa hoʻouna: Iune-12-2023