Fikradda iyo Codsiga Bauxite

Aluminium (Al) waa curiyaha ugu badan ee macdan ee qolofta dhulka. Marka lagu daro ogsijiin iyo hydrogen, waxay samaysaa bauxite, oo ah aluminiumka ugu badan ee laga isticmaalo macdanta. Kala soocida ugu horraysa ee chloride aluminium ee aluminium bir ah waxay ahayd 1829, laakiin wax soo saarka ganacsigu ma bilaabmin ilaa 1886. Aluminiumku waa bir cad oo cad, adag, khafiif ah oo leh culeys gaar ah oo ah 2.7. Waa kaari wanaagsan oo koronto ah oo aad u adkaysata daxalka. Astaamahaas awgeed, waxay noqotay bir muhiim ah.Aluminium aluminiumwaxay leedahay awood isku xidhid fudud oo sidaas awgeed waxaa loo isticmaalaa warshado kala duwan oo kala duwan.

 
Wax-soo-saarka aluminiumku waxa uu cunaa 90% wax-soo-saarka bauxite ee adduunka. Inta soo hartay waxaa loo isticmaalaa warshadaha sida abrasives, alaabta refractory, iyo kiimikooyinka. Bauxite waxa kale oo loo isticmaalaa soo saarista sibidhka sare ee alumina, sida wakiilka biyaha haynta ama sida kicinta ee warshadaha batroolka si ay u daboosho ulo alxanka iyo qulqulka, iyo sida qulqulka for steelsamaynta iyo ferroalloys.

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Isticmaalka aluminiumka waxaa ka mid ah qalabka korontada, baabuurta, maraakiibta, samaynta diyaaradaha, hababka birta iyo kiimikada, dhismaha gudaha iyo warshadaha, baakadaha (foil aluminium, gasacadaha), maacuunta jikada (qalabka miiska, dheryaha).

 
Warshadaha aluminiumku waxay bilaabeen horumarinta tignoolajiyada dib-u-warshadaynta walxaha aluminiumka ah waxayna aasaaseen xarun u gaar ah. Mid ka mid ah dhiirigelinta ugu muhiimsan ee warshadahan ayaa had iyo jeer ahaa hoos u dhaca isticmaalka tamarta, soo saarista hal tan oo aluminium ah oo ka badan hal tan oo aluminium aasaasiga ah. Tani waxay ku lug leedahay soo bandhigida 95% dareeraha aluminium ee bauxite si loo badbaadiyo tamarta. Tan kasta oo aluminium dib loo warshadeeyay waxay sidoo kale ka dhigan tahay badbaadinta toddoba tan oo bauxite ah. Australia gudaheeda, 10% wax soo saarka aluminiumku wuxuu ka yimaadaa alaabta dib loo warshadeeyay.


Waqtiga boostada: Oct-10-2024
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