Bauxite

Bauxite ore bụ isi iyi aluminom dị n'ụwa. A ga-ebu ụzọ hazie ọla ahụ na kemịkalụ iji mepụta alumina (aluminom oxide). A na-agbazekwa alumina site na iji usoro electrolysis iji mepụta ọla aluminom dị ọcha. A na-ahụkarị Bauxite n'elu ala dị na mpaghara okpomọkụ na ebe okpomọkụ dị iche iche. A na-enweta ọla ahụ site n'ọrụ ngwupụta ihe na gburugburu ebe obibi. Ebe nchekwa Bauxite dị ukwuu n'Africa, Oceania na South America. Atụmatụ na nchekwa ga-adịru ọtụtụ narị afọ.

Eziokwu Iwepụ

• A ghaghị nụchaa aluminom site na ọla
  Ọ bụ ezie na aluminom bụ ígwè a na-ahụkarị n'ụwa (na-agbakọta pasent 8 nke eriri ụwa), metal ahụ na-emeghachi omume na ihe ndị ọzọ na-eme ka ọ pụta ìhè. Bauxite ore, nke a nụchara anụcha site na usoro abụọ, bụ isi iyi nke aluminom.
• Nchekwa ala bụ isi ụlọ ọrụ na-elekwasị anya
  Nkezi nke pasenti 80 nke ala e gwuru maka bauxite na-eweghachite ya na gburugburu ebe obibi ya. A na-echekwa ala dị n'elu site na ebe a na-egwuputa ihe ka enwere ike dochie ya n'oge usoro nhazigharị.
• Nchekwa ga-adịru ọtụtụ narị afọ
  Ọ bụ ezie na ọchịchọ aluminom na-amụba ngwa ngwa, ihe nchekwa bauxite, nke e mere atụmatụ ugbu a na ijeri metric ton 40 ruo 75, na-atụ anya na ọ ga-adịru ọtụtụ narị afọ. Guinea na Australia nwere ebe nchekwa abụọ kachasị ukwuu egosipụtara.
• Akụ na ụba nke bauxite
  Vietnam nwere ike ijide akụ bauxite. Na Nọvemba 2010, praịm minista Vietnam mara ọkwa na nchekwa bauxite nke obodo nwere ike ịgbakọta ruru ijeri ijeri iri na otu.

Bauxite 101

Bauxite ore bụ isi iyi aluminom n'ụwa

Bauxite bụ okwute sitere na ihe ụrọ na-acha ọbara ọbara a na-akpọ ala laterite ma bụrụ nke a na-ahụkarị na mpaghara okpomọkụ ma ọ bụ ebe okpomọkụ. Bauxite bụ isi ihe mejupụtara ogige aluminom oxide (alumina), silica, iron oxides na titanium dioxide. Ihe dị ka pasent 70 nke mmepụta bauxite n'ụwa ka a na-anụcha site na usoro kemịkalụ Bayer ka ọ bụrụ alumina. A na-anụcha alumina ka ọ bụrụ ọla aluminom dị ọcha site na usoro electrolytic Hall-Héroult.

Ngwuputa bauxite

A na-ahụkarị Bauxite n'akụkụ elu ala ma nwee ike ịgbapụta akụ na ụba. Ụlọ ọrụ ahụ ewerela ọrụ nduzi na mbọ nchekwa gburugburu ebe obibi. Mgbe a na-ekpochapụ ala ahụ tupu a na-egwupụta ihe, a na-echekwa elu ala ka e wee dochie ya n'oge nhazigharị. N'oge a na-egwupụta ihe na-egwupụta ihe, a na-agbaji bauxite ma wepụ ya na ebe a na-egwupụta ihe n'ụlọ ọrụ alumina. Ozugbo ngwungwu gwuchara, a na-edochi ala dị n'elu na mpaghara ahụ na-eme usoro mweghachi. Mgbe a na-egwupụta ọla n'ime ọhịa, nkezi nke pasent 80 nke ala a na-eweghachite n'usoro gburugburu ebe obibi ya.

Mmepụta na idobere

A na-egwupụta ihe karịrị nde metrik tọn 160 nke bauxite kwa afọ. Ndị isi na mmepụta bauxite gụnyere Australia, China, Brazil, India na Guinea. A na-eche na nchekwa Bauxite dị ijeri metric ton 55 ruo 75, bụ nke gbasaa n'Africa (pasent 32), Oceania (pasent 23), South America na Caribbean (pasent 21) na Asia (pasent 18).

Na-atụ anya: Ọganihu na-aga n'ihu na mbọ mweghachi gburugburu ebe obibi

Ebumnuche mweghachi gburugburu ebe obibi na-aga n'ihu. Ọrụ mweghachi nke ụdị dị iche iche nke na-aga n'ihu na Western Australia na-enye ihe atụ kacha mma. Ebumnobi a: iweghachite ọkwa nha nke ụdị ihe ọkụkụ na mpaghara emezigharịrị ha nha oke ọhịa Jarrah na-enweghị ogbunigwe. (Ohia Jarrah bụ oke ọhịa mepere emepe. Eucalyptus marginata bụ osisi kachasị.)

Les Baux, Ụlọ nke Bauxite

Akpọrọ Bauxite aha obodo Les Baux site n'aka Pierre Berthe. Onye France a na-ahụ maka mbara ala hụrụ ọla ahụ n'ebe ndị dị nso. Ọ bụ onye mbụ chọpụtara na bauxite nwere aluminom.