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ʻO ka waiwai a me ka hoʻohana ʻana i ka mineral bauxite, aluminika.

E kūʻai i ka bauxite maoli ma kā mākou hale kūʻai

ʻO nā Bauxites nā minerala sedimentary me kahi ʻano alumini kiʻekiʻe. ʻO ia ke kumu nui o ka alumini a me ka galium ma ka honua. ʻO ka pōhaku ka mea nui i nā minerala alumini, gibbsite, boehmite a me diaspore, i hui pū ʻia me ʻelua mau mea hao hao, goethite a me hematite, ka alumini mineral kaolinite a me nā mea liʻiliʻi o anatase a me ka ilmenite.

aʻo

Nui nā papahana hoʻokaʻawale no ka bauxite i manaʻo ʻia.

ʻO Vadász (1951) ka mea ʻokoʻa o ka lateritic (silicate) ores mai nā karst bauxite (carbonate):

• Loaʻa ka carbonate bauxite ma ʻEulopa, Guiana, a me Jamaica ma luna o nā pōhaku carbonate (limestone a me dolomite), kahi i hana ʻia ai e ka hoʻoheheʻe ʻana i ka ʻaoʻao a me ke koena o ka hōʻiliʻili ʻana o nā pālolo i hoʻopuehu ʻia i ka wā i hoʻoheheʻe ʻia nā limestones a puni i ka wā kemika. ka lewa.
• Loaʻa nā pōhaku Laterite ma nā ʻāina wela. Hoʻokumu ʻia lākou e ka peritization o nā pōhaku silicate e like me ka granite, gneiss, basalt, syenite a me schist. Ke hoʻohālikelike ʻia me nā laterites waiwai nui o ka hao, ʻoi aku ka hilinaʻi o ka hoʻokumu ʻana o kēia mau pōhaku i ke ʻano o ka wā ikaika ma kahi wahi me ka wai maikaʻi loa. ʻO kēia ka mea e hiki ai i ka kaolinite ke hoʻoheheʻe a me ka gibbsite e hoʻoheheʻe. ʻO nā wahi me nā mea alumini kiʻekiʻe loa ma lalo o ka papa ili o ka hao. ʻO ka alumini hydroxide i loko o nā waihona lateritic kahi kokoke wale i ka gibbsite.

Ma ka hihia o Jamaica, ua hōʻike ʻia nā loiloi ʻāina hou i nā pae kiʻekiʻe o ka cadmium, e hōʻike ana e hele mai nā pōhaku mai nā waihona lehu Miocene hou mai nā manawa o ka lua pele ikaika ma ʻAmelika Waena.

bauxite mai ʻaustralia

Ka hana

ʻO Australia ka mea hana nui loa, a ma hope o Kina. Ma 2017, ʻo Kina ka mea hana nui loa o ka alumini, e helu ana no ka hapalua o ka hana honua, a ukali ʻia e Russia, Kanada a me India.

ʻOiai ke ulu wikiwiki nei ka koi no ka aluminika, ua lawa nā mea i ʻike ʻia o ka ʻai pōhaku e hoʻokō i ka koi o ka honua no ka alumini no nā kenekulia he nui. ʻO ka hoʻonui ʻana i ka hoʻohana ʻana i ka alumini, ka mea i loaʻa i ka pono o ka hoʻohaʻahaʻa ʻana i nā kumukūʻai ikehu o ka hana alumini, e hoʻonui nui i nā waihona honua.

ʻO ka hoʻohana a me ke koʻikoʻi o ka bauxite a me nā waiwai ho'ōla

He pseudo-scientific ka ʻāpana aʻe a ma muli o nā manaʻo moʻomeheu.

ʻO ka hoʻohana a me ka pono o ka bauxite

Hiki ke hoʻohana ʻia ka pōhaku i ka noʻonoʻo ʻana a hiki ke kōkua i nā kūlana e pilikia ai ʻoe.

Hiki iā ia ke ʻae iā ʻoe e ʻike i ka manaʻo o nā poʻe ʻē aʻe. Uaʻikeʻia e kōkua i ka hoʻonuiʻana i nā manaʻo o ka hauʻoli a hoʻonui i ka maikaʻi.

ʻAʻole ia e hana koke, akā inā mālama ʻia ma kahi kokoke, hana kona ikehu i mea hoʻoikaika i ka manawa.

Ma ke kōkua ʻana iā ʻoe e hoʻokuʻu i nā pilikia pili i ka manaʻo e pale ana iā ʻoe mai ka hoʻokō ʻana i kāu mea e makemake ai, hiki iā ia ke kōkua iā ʻoe e hoʻokuʻu i nā manaʻo e huhū a huhū paha ʻoe i nā kūlana o ke ola.

bauxite ma lalo o ka microscope

NPP

No ke aha ka bauxite?

Hoʻohana ʻia ka pōhaku e hana i ka alumina, a laila hoʻohana ʻia e hana i ka alumini. Hiki ke hana ʻia ka ʻōpala ma kekahi mau pae o ke kaʻina hana, me ka ʻeli ʻana a me ka hana ʻana.

Pehea ka hana ʻana o ka bauxite?

Hoʻokumu ʻia ka pōhaku makamae ma muli o ke akahele ʻana o nā pōhaku like ʻole. ʻO nā minelala pālolo ka mea maʻamau i nā pae waena, akā ʻike ʻia kekahi mau pōhaku e mālama ʻia me nā waihona kemika ma mua o nā huahana hoʻololi maʻalahi. Hiki iā ia ke hoʻololi i ka laterite a i ʻole ka pālolo ma ka transversely a me ka vertically.

He aha ke ʻano o ka bauxite?

ʻO ka mea maʻamau he mea palupalu me ka paʻakikī o 1 a 3 ma ka pālākiō Mohs. He keʻokeʻo i ka hina a ʻulaʻula ka waihoʻoluʻu, me ke ʻano pisolite, kahi ʻulaʻula lepo, a me ka umekaumaha haʻahaʻa o 2.0 a 2.5.

He aha ke kala o ka bauxite?

He ʻulaʻula ʻulaʻula ka pōhaku, keʻokeʻo, ʻeleʻele māmā a melemele ʻeleʻele. He ʻeleʻele ka ʻulaʻula i ka lepo a me ke ʻano o ka pālolo a i ʻole ka lepo.

ʻO ka ʻāina hea ka nui o ka bauxite?

I 2020, ua hana ʻo Australia i ka nui loa o ka honua. Ua hana ka ʻāina i 110 miliona metric tons i kēia makahiki. Ma hope o Australia ʻo Guinea, nāna i ʻeli i 82 miliona mau toni pōhaku.

Ke kūʻai aku nei au i ka bauxite kūlohelohe i kā mākou hale kūʻai

Hana mākou i nā apo mare bauxite, nā lei, nā apo pepeiao, nā kūpeʻe lima, nā pendants… E ʻoluʻolu e kelepona mai iā mākou no kahi hāʻawi.