Pehea e ʻike ʻia ai ka waiwai o kahi waihona keleawe?
Nui nā kumu e noʻonoʻo ai i ka wā e hoʻoholo ai i ka waiwai o kahi waihona keleawe.Ma waena o nā kumu ʻē aʻe, pono nā ʻoihana e noʻonoʻo i ka pae, hoʻomaʻemaʻe i nā kumukūʻai, nā kumu keleawe i manaʻo ʻia a me ka maʻalahi o ka ʻeli ʻana i ke keleawe.Aia ma lalo iho kahi ʻike pōkole o kekahi mau mea e noʻonoʻo ai i ka wā e hoʻoholo ai i ka waiwai o kahi waihona keleawe.
1
He aha ke ʻano o nā waihona keleawe?
He haʻahaʻa haʻahaʻa nā waihona keleawe Porphyry akā he kumu nui ia o ke keleawe no ka mea hiki ke ʻeli ʻia ma ka nui me ke kumu kūʻai haʻahaʻa.Loaʻa iā lākou ka 0.4% a i ka 1% keleawe a me nā mea liʻiliʻi o nā metala ʻē aʻe e like me ka molybdenum, ke kālā a me ke gula.ʻO nā waihona keleawe Porphyry ka mea maʻamau a lawe ʻia ma o ka lua hāmama.
ʻO nā pōhaku lepo keleawe ka lua o nā ʻano waihona keleawe nui loa, e helu ana ma kahi o hoʻokahi hapahā o nā waihona keleawe i ʻike ʻia ma ka honua.
ʻO nā ʻano waihona keleawe ʻē aʻe i loaʻa a puni ka honua:
ʻO nā waihona ʻo Volcanogenic massive sulfide (VMS) nā kumu o ke keleawe sulfide i hoʻokumu ʻia ma o nā hanana hydrothermal ma nā kaiapuni i lalo o ke kai.
ʻO nā waihona hao oxide-copper-gold (IOCG) he mau kumu waiwai nui o ke keleawe, ke gula a me ka uranium ores.
Hoʻokumu ʻia nā waihona skarn keleawe, ma ka ʻōlelo ākea, ma o ka hoʻololi ʻana i ka mineral kemika a me ke kino i hana ʻia ke hoʻopili ʻia nā lithologies ʻelua.
2
He aha ka helu maʻamau o nā waihona keleawe?
He mea koʻikoʻi ka papa i ka waiwai o kahi waihona minerala a he ana kūpono ia o ka ʻike metala.ʻO ka hapa nui o nā ʻeleʻele keleawe he ʻāpana liʻiliʻi wale nō o ka metala keleawe i hoʻopaʻa ʻia i loko o nā minerala waiwai nui.ʻO ke koena o ka ʻai he pōhaku makemake ʻole.
Hana nā ʻoihana ʻimi i nā papahana wili e unuhi i nā laʻana pōhaku i kapa ʻia ʻo cores.A laila, ʻike ʻia ke kumu no ka hoʻoholo ʻana i ka "papa" o ka waihona.
Hōʻike pinepine ʻia ka pae waihona keleawe ma ke ʻano he pākēneka kaumaha o ka nui o ka pōhaku.No ka laʻana, 1000 kilokani keleawe keleawe he 300 kilokani keleawe keleawe me ka helu o 30%.Ke haʻahaʻa loa ka neʻe ʻana o kahi metala, hiki ke wehewehe ʻia ma nā ʻāpana o ka miliona.Eia nō naʻe, ʻo ka papa ka hui maʻamau no ke keleawe, a ʻo nā hui ʻimi e hoʻohālikelike i ka helu ma o ka ʻeli ʻana a me nā hoʻāʻo.
ʻO ka awelika o ke keleawe keleawe o ke keleawe keleawe i ka 21st century he emi iho ia ma mua o 0.6%, a ʻo ka hapa o nā minela oka i ka nui o ka nui o ka oka ma lalo o 2%.
Pono nā mea hoʻolale kālā e nānā i nā helu helu me ka maka koʻikoʻi.Ke hoʻopuka ka ʻoihana ʻimi i kahi ʻōlelo helu, pono nā mea hoʻopukapuka e hoʻohālikelike iā ia me ka hohonu hohonu o ka drill core i hoʻohana ʻia no ka hoʻoholo ʻana i ka pae.ʻOi aku ka haʻahaʻa o ka waiwai o ka papa kiʻekiʻe ma ka hohonu haʻahaʻa ma mua o ka waiwai o ka helu mediocre i kūlike ma o ka hohonu hohonu.
3
ʻEhia ke kumu kūʻai o ka mine keleawe?
ʻO nā mines keleawe nui loa a maikaʻi loa he mau lua hāmama, ʻoiai ʻaʻole maʻamau nā mines keleawe ma lalo o ka honua.ʻO ka mea nui loa i loko o kahi lua hāmama, ʻo ia ka waiwai kokoke i ka ʻili.
Makemake nui nā ʻoihana mining i ka nui o ka overburden, ʻo ia ka nui o nā pōhaku waiwai ʻole a me ka lepo ma luna o ke kumu keleawe.Pono e wehe ʻia kēia mea no ke komo ʻana i ka punawai.ʻO Escondida, i ʻōlelo ʻia ma luna, he mau kumuwaiwai i uhi ʻia e ka overburden nui, akā aia ka waiwai o ka waihona ma muli o ka nui o nā kumuwaiwai ma lalo o ka honua.
4
He aha nā ʻano o nā mina keleawe?
ʻElua ʻano ʻokoʻa o nā waihona keleawe: sulfide ores a me oxide ores.I kēia manawa, ʻo ke kumu maʻamau o ke keleawe keleawe ʻo ka sulfide mineral chalcopyrite, ʻo ia ka mea ma kahi o 50% o ka hana keleawe.Hoʻohana ʻia nā ʻohe Sulfide ma o ka lele ʻana o ka huʻi e loaʻa ai ka ʻene keleawe.Hiki i nā ʻaila keleawe i loaʻa ka chalcopyrite ke hana i nā concentrates i loaʻa ka 20% a 30% keleawe.
ʻO ka nui o ka chalcosite concentrates ka mea maʻamau o ka papa kiʻekiʻe, a no ka mea, ʻaʻohe hao o ka chalcosite, ʻo ka mea keleawe i loko o ka concentrate mai 37% a 40%.Ua ʻeli ʻia ʻo Chalcocite no nā kenekulia a ʻo ia kekahi o nā ores keleawe maikaʻi loa.ʻO ke kumu o kēia ʻo kona ʻano keleawe kiʻekiʻe, a ʻo ke keleawe i loko o ia mea ua maʻalahi ka hoʻokaʻawale ʻana mai ka sulfur.
Akā naʻe, ʻaʻole ia he lua keleawe nui i kēia lā.Hoʻokuʻu ʻia ka ʻaila keleawe keleawe me ka sulfuric acid, e hoʻokuʻu ana i ka mineral keleawe i loko o kahi hopena sulfuric acid e lawe ana i ka hopena keleawe sulfate.Wehe ʻia ke keleawe mai ka solution copper sulfate (i kapa ʻia he solution leach rich) ma o ka hoʻoheheʻe ʻana a me ke kaʻina hana electrolytic deposition, ʻoi aku ka maikaʻi ma mua o ka flotation flotation.
Ka manawa hoʻouna: Jan-25-2024
