I-bauxite

I-Bauxite ore yeyona nto iphambili ye-aluminium. I-ore kufuneka kuqala iqhubekeke kwikhemikhali ukuze ivelise i-alumina (ialuminium oxide). I-Aluminii inyibilikisiwe kusetyenziswa inkqubo ye-electrolysis ukuze ivelise intsimbi ecocekileyo ye-aluminium. I-Bauxite ihlala ifumaneka kwi-topsoil emiselweyo kwimimandla eyahlukeneyo nezesiphako. I-ore ifunyenwe ngokuyindawo yokusebenza kwimigodi yendalo. Iindawo zokugcina i-bauxite zininzi kakhulu e-Afrika, eOcenia noMzantsi Merika. Iindawo zokugcina ziqikelelwe ukuba zihlale ziyinkulungwane.

Thatha inyani

• I-Aluminium kufuneka ihlaziywe kwi-ore
  Nangona i-aluminium yeyona ntsimbi iqhelekileyo ifunyenwe emhlabeni (iyonke ipesenti yeplanethi yeplanethi), isinyithi sisebenza kakhulu nezinye izinto ezenzeka ngokwemvelo. I-Bauxite Ore, ehlaziyiweyo kwiinkqubo ezimbini, ngowona mthombo we-aluminium.
• Ulondolozo loMhlaba yindawo ekugxilwe kuyo
  Umndilili weepesenti ezingama-80 zomhlaba onxunguphaliswa nge-bauxite ubuyiselwe kwindalo yendalo. Umphezulu wesomgodi kwindawo yemigodi igcinwe ukuze itshintshwe ngexesha lenkqubo yokuhlengahlengiswa.
• Iindawo zolondolozo ziya kuhlala kwiinkulungwane ezidlulileyo
  Nangona imfuno yealuminiyam iyanda ngokukhawuleza, oovimba be-bauxite, okwangoku baqikelelwa kwi-40 ukuya kwi-75 yezigidi zee-metric, baqikelelwa ukuba bahlale kwiinkulungwane ezidlulileyo. IGuinea ne-Australia ineelolo zimbini zibalulekileyo.
• Ubutyebi be-bauxite
  I-Vietnam inokuba nobutyebi beBauxite. NgoNovemba ka-2010, inkulumbuso yaseVietnam yabhengeza i-Bauxite yelizwe lonke lingafikelela kwi-11 yeebhiliyoni.

I-Bauxite 101

I-Bauxite ore nguMthombo ophambili we-aluminium

I-Bauxite ilitye olwenziwe kwindawo ebomvu ebomvu ebizwa ngokuba yiCalixate umhlaba kwaye ixhaphake kakhulu kwimimandla enamatye okanye eqinile. I-Bauxite ikakhulu iqulunqwe i-Aluminium Complates (AlumIA), i-Silica, i-Iron Oxide kunye neTitanium Dioxide. Malunga neepesenti ezingama-70 zemveliso ye-Bauxite yeHlabathi yeHlabathi ihlaziyiwe kwinkqubo yemichiza ye-bayner kwiAlumina. I-Aluminii isuswe kwi-aluminium ye-aluminium ye-aluminium ngenkqubo yeholo-Hérolytrolytic.

Imigodi ye-Bauxite

I-Bauxite ihlala ifumaneka kufutshane nomphezulu wendawo kwaye incinci ingenelwe kwezoqoqosho. Umzi mveliso uthathe indima yobunkokeli kwimizamo yolondolozo lwendalo. Xa umhlaba ucinyiwe ngaphambi kokugoba, umphezulu womphezulu ugcinwe ukuze itshintshwe ngexesha lokuhlaziywa. Ngexesha lenkqubo yokugoba imitya, i-bauxite iqhekezwe kwaye ikhutshiwe kwaye ikhutshiwe eyam kwi-Alamina icocekile. Nje ukuba imbiwa igqitywe, umphezulu wathatyathwa kwaye le ndawo iphantsi kwenkqubo yokubuyiselwa. Xa i-ore imbiyiwe kwiindawo ezinamahlathi, umyinge weepesenti ezingama-80 zomhlaba ubuyiselwe kwi-ecosystem yayo.

Imveliso kunye nogcino

Ngaphezulu kwe-160 yeetoni ze-metric ze-metric ze-bauxite imbiwa ngonyaka. Iinkokeli kwimveliso ye-Bauxite zibandakanya i-Australia, China, eBrazil, India naseGuinea. Iindawo zokugcina i-Bauxite ziqikelelwa ukuba zingama-55 ukuya kwi-75 yezigidigidi ze-Metric, ngokuyintloko zisasazeke kwi-Afrika (ipesenti ezingama-32), iwaliwe (i-23 pesenti) kunye ne-Asia (i-18 pesenti).

Ukujonga phambili: Ukuqhubeka kophuculo kwimizamo yokubuyiselwa kwendalo

Iinjongo zokubuyiselwa kokusingqongileyo ziyaqhubeka. IProjekthi yokuBuyisela iZinto ezahlukeneyo zeBoiodiversial Perost Australia ibonelela ngomzekelo ophambili. Injongo: Ukuphinda usebenzise inqanaba leentlobo zezityalo ezinobutyebi bezityalo kwiindawo ezihlaziyiweyo ezilinganayo nehlathi le-chararah elingelwe. .

I-les baux, ikhaya leBauxite

I-Bauxite yabizwa ngokuba yilali yaseLes Baux nguPierre Bershe. Le ngxowa yejelogist yesiFrentshi ifumene i-ore kwiidipozithi ezikufuphi. Wayengowokuqala ukufumana ukuba i-bauxite ine-aluminium.