Flake graphite site na nnukwu nrụgide metamorphism, n'ozuzu bluish isi awọ, ihu igwe na-acha aja aja ma ọ bụ isi awọ na-acha ọcha, nke a na-emepụta na neiss, schist, crystalline limestone na skarn, mineral symbionic dị mgbagwoju anya, ihe bụ isi bụ flake crystalline crystalline carbon, tinyere graphite na graphite. ore maka crystalline flake ma ọ bụ akwukwo udi, nwa ma ọ bụ ígwè isi awọ, tumadi eme na feldspar, quartz ma ọ bụ diopside, tremolite ahụ n'etiti.O nwere nhazi ntụziaka doro anya, na-adabere na ntụziaka nke oyi akwa.Flake graphite bụ nke ukwuu exocrystalline graphite, ihe owuwu lamellar, ọdịdị ya dị ka ọnụ ọgụgụ azụ, usoro kristal hexagonal, steeti kristal ka mma, nha nha nha bụ 0.05 ~ 1.5μm, ọkpụrụkpụ nke ibe ahụ bụ 0.02 ~ 0.05. mm, nke kasị ibu flake nwere ike iru 4 ~ 5mm, na carbon ọdịnaya nke graphite bụ n'ozuzu banyere 2% ~ 5% ma ọ bụ 10% ~ 25%.
Production ebe flake graphite tumadi emi odude ke Asia, China na Sri Lanka, Europe Ukraine, Mozambique, Madagascar, Tanzania na South America Brazil na mba ndị ọzọ, Mozambique, Tanzania, Madagascar na mba ndị ọzọ ọgaranya (super) nnukwu flake graphite, na elu. uru ụlọ ọrụ.
"MERAL COMMODITY SUMMARIES 2021" nke US Geological Survey (USGS) weputara na-egosi na ka ọ na-erule njedebe nke 2020, ihe nchekwa graphite eke egosipụtara n'ụwa bụ nde 230, nke China, Brazil, Madagascar na Mozambique nwetara ihe ndị ọzọ. karịa 84%.Ka ọ dị ugbu a, ndị na-emepụta graphite eke eke bụ China, Brazil na India.Site na 2011 ruo 2016, mmepụta zuru ụwa ọnụ nke graphite flake eke ka kwụsiri ike na 1.1 ruo 1.2 nde t / a.N'ịbụ onye ọtụtụ ihe metụtara, ọ dara na tọn 897,000 na 2017;Na 2018, o ji nwayọọ nwayọọ bilie ruo 930,000 t;Na 2019, n'ihi mmụba nke ọkọnọ nke graphite eke eke na Mozambique, ọ laghachiri na 1.1 nde t.N'afọ 2020, mmepụta flake graphite nke China ga-abụ tọn 650,000, na-aza ihe dịka 59% nke mkpokọta ụwa, ma bụrụ onye na-emepụta ihe kachasị n'ụwa;Mozambique flake graphite mmepụta nke 120,000 t, na-aza 11% nke mkpokọta mmepụta ụwa.
Oge nzipu: Jun-12-2023