Lẹẹdi Flake nipasẹ metamorphism titẹ giga, grẹy bulu gbogbogbo, awọ-awọ-awọ-awọ-awọ-awọ tabi funfun grẹyish, ti a ṣejade pupọ julọ ni neiss, schist, limestone crystalline ati skarn, awọn ohun alumọni symbionic jẹ eka sii, paati akọkọ jẹ carbon crystalline crystalline flake, ti o tẹle pẹlu lẹẹdi ninu ore fun okuta flake tabi bunkun apẹrẹ, dudu tabi irin grẹy, o kun sẹlẹ ni feldspar, quartz tabi diopside, tremolite patikulu laarin.O ni eto itọnisọna ti o han gbangba, ni ibamu pẹlu itọsọna ti Layer.Lẹẹdi Flake jẹ lẹẹdi exocrystalline pupọ julọ, eto lamellar kan, apẹrẹ rẹ dabi iwọn ẹja, eto gara hexagonal kan, ipo gara dara julọ, iwọn ila opin patiku jẹ 0.05 ~ 1.5μm, sisanra ti nkan naa jẹ 0.02 ~ 0.05 mm, flake ti o tobi julọ le de ọdọ 4 ~ 5mm, akoonu erogba ti lẹẹdi jẹ gbogbogbo nipa 2% ~ 5% tabi 10% ~ 25%.
Agbegbe iṣelọpọ ti lẹẹdi flake wa ni akọkọ ni Asia, China ati Sri Lanka, Ukraine ti Yuroopu, Mozambique, Madagascar, Tanzania ati South America Brazil ati awọn orilẹ-ede miiran, Mozambique, Tanzania, Madagascar ati awọn orilẹ-ede miiran ọlọrọ (super) lẹẹdi flake nla, pẹlu giga giga. ise iye.
“Awọn SUMMARIES ỌRỌ ỌRỌ MINERAL 2021” ti a tu silẹ nipasẹ Iwadi Jiolojikali AMẸRIKA (USGS) fihan pe ni opin ọdun 2020, awọn ifiṣura graphite flake adayeba ti a fihan ni agbaye jẹ awọn toonu 230 milionu, eyiti China, Brazil, Madagascar ati Mozambique ṣe akọọlẹ diẹ sii ju 84%.Lọwọlọwọ, awọn olupilẹṣẹ akọkọ ti graphite flake adayeba jẹ China, Brazil ati India.Lati ọdun 2011 si ọdun 2016, iṣelọpọ agbaye ti graphite flake adayeba duro ni iduroṣinṣin ni 1.1 si 1.2 million t/a.Ti o ni ipa nipasẹ ọpọlọpọ awọn ifosiwewe, o ṣubu si awọn toonu 897,000 ni ọdun 2017;Ni 2018, o laiyara dide si 930,000 t;Ni ọdun 2019, nitori ilosoke ninu ipese ti graphite flake adayeba ni Mozambique, o pada si 1.1 million t.Ni 2020, China ká flake graphite gbóògì yoo jẹ 650,000 toonu, iṣiro fun nipa 59% ti agbaye lapapọ o wu, ati ki o jẹ agbaye tobi o nse;Iṣẹjade graphite flake Mozambique ti 120,000 t, ṣiṣe iṣiro fun 11% ti iṣelọpọ lapapọ agbaye.
Akoko ifiweranṣẹ: Oṣu Kẹta-12-2023