He mea koʻikoʻi ʻo Chromite no ka hoʻoheheʻe ʻana i nā ferroalloys, ke kila kila a me nā ʻāpana makamae.Hoʻohana ka ʻoihana metallurgical ma kahi o 60% o ka chromium, ka mea i hoʻohana nui ʻia e hana i ke kila kila, ʻoi aku ka kila kila.I ka manawa like, hoʻohana nui ʻia ka chromite i ka ʻoihana refractory, ʻoihana kemika a me ka ʻoihana māmā.
Ore waiwai
ʻOi aku ma mua o kanalima mau ʻano minerala i loaʻa i ka chromium i loaʻa ma ke ʻano, akā ʻo ka chromite wale nō me ka waiwai o ka ʻoihana, ʻo ia ka spinel (MgO, Al2O3), magnesia chromite (MgO, Cr2O3), a me ka magnetite.(FeO, Fe2O3) a me nā hāʻina paʻa ʻē aʻe.ʻO ka manaʻo manaʻo, ʻo FeO, Cr2O3 ke kumu kemika o ka chromite, loaʻa ka 68% Cr2O3, 32% FeO, medium magnetic, density 4.1 ~ 4.7g/cm3, Mohs hardness 5.5 ~ 6.5, a ʻo ka ʻike maka mai ka ʻeleʻele a i ka ʻeleʻele ʻeleʻele.ʻO nā minerala Gangue ka nui o ka olivine, serpentine a me ka pyroxene, i kekahi manawa i hui pū ʻia me kahi mea liʻiliʻi o ka vanadium, nickel, cobalt a me nā mea hui molybdenum.
ʻenehana hana
He ʻilihune nā kumu waiwai chromite o Kina, ʻo ka hapa nui o Tibet, Xinjiang, Inner Mongolia, Gansu a me nā panalāʻau ʻē aʻe.Hāʻawi nui ʻia nā kumuwaiwai chromite haole ma South Africa, Russia, Brazil, United States a me nā ʻāina ʻē aʻe.Loaʻa i ka Chromite nā hiʻohiʻona o ke kiʻekiʻe kiʻekiʻe, ka magnetism waena a me nā ʻāpana aniani.ʻO ka maʻamau, hoʻokaʻawale ʻia ia e ka holoi ʻana, nāwaliwali ka hoʻokaʻawale magnetic, ka hoʻokaʻawale magnetic ikaika, ka hoʻokaʻawale gravity, flotation a me nā kaʻina hana ʻē aʻe.
ʻano holoi holoi
He kūpono ia no ka ʻeleʻele chromite coarse-grained me ke kiʻekiʻe o ka ʻaila maka a me ka nui o ka lepo e like me ka lepo maikaʻi e like me nā haumia.Hiki ke koho ʻia nā huahana concentrate koʻikoʻi ma ka holoi maʻalahi.
Mākēneki hoʻokaʻawale
Loaʻa iā Chromite nā waiwai magnetic a hiki ke hoʻokaʻawale ʻia e ka hoʻokaʻawale magnetic ikaika a maloʻo paha.Hoʻokaʻawale mua ʻia ka magnetite e pili ana i ka magnetic magnetic, a laila hoʻokaʻawale ʻia e ka CXJ a i ʻole CFLJ, plate magnetic separator, vertical apo high gradient magnetic separator, a me nā mea ʻē aʻe.Loaʻa i ke ʻano hoʻokaʻawale magnetic nā mea maikaʻi o ka hiki ke hana nui a me nā hōʻailona kūpaʻa.
Paena noi chromite ʻApelika Hema
ʻO ka hoʻokaʻina media kaumaha
ʻO ka umekaumaha kikoʻī o ka chromite ʻo 4.1 ~ 4.7g/cm3, a ʻo ka umekaumaha kikoʻī o ka gangue pili a me nā mineral silicate hao he 2.7 ~ 3.2g/cm3.Hiki ke hoʻohana ʻia ka ʻokoʻa ma waena o nā minerala, spiral chute, jigging, lulu papaʻaina, spiral beneficiation hiki ke hoʻohana ʻia i nā Mīkini, centrifuges a me nā mea hoʻokaʻawale kaumaha ʻē aʻe no ka hoʻokaʻawale ʻana.He kūpono kēia ʻano no ka chromite me ka nui o ka palaoa aniani ʻoi aku ka nui, a ua nalowale nā palapala maikaʻi i nā huelo.
Holoi
Hiki i ka Chromite ke hoʻohana i ka ʻakika momona a i ʻole nā mea hōʻiliʻili amine no ke koho ʻana i nā concentrates kūpono ma o nā kaʻina hana roughing a sweeping ma lalo o nā kūlana pH kūpono.He kūpono ia no nā chromites maikaʻi a maikaʻi.
Loaʻa i ka waiwai kemika
No kekahi ores chrome paʻakikī ke hana ʻia e nā ʻano hana hoʻomaikaʻi mechanical, ua apono ʻia ke kaʻina hana hoʻopōmaikaʻi-kemika a i ʻole ke ʻano kemika hoʻokahi.ʻO nā ʻano hana hoʻomaikaʻi kemika: ka leaching koho, redox, fuse separation, sulfuric acid a me chromic acid leaching, hoʻemi a me ka sulfuric acid leaching, etc.
Laʻana pōmaikaʻi
ʻO ka helu o Cr2O3 i loko o kahi huelo chromite ma ʻApelika Hema he 24.80%.He huelo koho hou ia ma ka paena.ʻO ka nui o ka laʻana he -40 mesh a ʻano like ka nui o ka ʻāpana.Aia ka chromite i loko o nā ʻāpana maikaʻi a me nā kino pili a me nā inclusions.ʻO nā mineral gangue nui ʻO ia ka olivine a me ka pyroxene, me kahi liʻiliʻi o ka lepo maikaʻi.E like me ke ʻano o nā ʻano ʻai, ua hoʻokumu ʻia ke kaʻina hana beneficiation e like me ke apo palahalaha a kūpaʻa paha i kahi roughing.
ʻO ka chromite maikaʻi i loko o nā huelo o ka hoʻokaʻawale ʻana i ka gravity chute ma luna o ka pūnaewele e hoʻohana i kahi pā pālahalaha a i ʻole ke apo kū i ke kaʻina hoʻokaʻawale magnetic ikaika, hiki ke koho i nā huahana concentrate kūpono.ʻO nā minelala i loko o ka chromium i loko o ka huelo magnetic he mau mea hoʻohui maikaʻi a i ʻole nā minelala chromium waiwai ʻole i loaʻa i nā hōʻailona pōmaikaʻi.
Ka manawa hoʻouna: ʻOkakopa-12-2021