Bauxite

Bauxite (bauxite ore) e faasino i se faaupuga tuʻufaʻatasia mo minerale e mafai ona faʻaaogaina i alamanuia, e masani lava ona aofia ai le gibbsite, boehmite, poʻo le diaspore.

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Fa'amatalaga

Fa'ailoga

Fa'amatalaga

Bauxite (bauxite ore) e faasino i se faaupuga tuʻufaʻatasia mo minerale e mafai ona faʻaaogaina i alamanuia, e masani lava ona aofia ai le gibbsite, boehmite, poʻo le diaspore. Ose punaoa e le mafai ona fa'afouina. Bauxite mama e pa'epa'e le lanu ma e mafai ona foliga efuefu malamalama, lanu meamata, po'o le mumu mumu ona o mea leaga eseese. O le Bauxite o loʻo i ai le tele o faʻaoga faʻapisinisi. I le tasi itu, o le mea autu autu mo le gaosia o le alumina, lea e maua ai le alumini. I le isi itu, o loʻo faʻaaogaina lautele e avea o se mea mataʻutia i alamanuia e pei o mea refractory, fused corundum, mea olo, oloa sima, vailaʻau vailaʻau, ma maualuga alumina slurry.

Calcined bauxite contains hydrated alumina and aluminum hydroxide, obtained by calcining high-quality bauxite at high temperatures (85°C to 1600°C) in a rotary kiln. It is one of the main raw materials for producing aluminum. Compared with the original bauxite, after removing moisture through calcination, the alumina content of the calcined bauxite can be increased from about 57% to 58% of the original bauxite to 84% to 88%.

Fa'ailoga oloa

Bauxite	Tele(mm)	Al2O3(%)	SiO2(%)	Maualuluga(%)	Fe2O3(%)	MC(%)
88	0-1,1-3,3-5	＞88	<9	<0.2	<3	<2
85	0-1,1-3,3-5	＞85	<7	<0.2	<2.5	<2

Talosaga

Alumini alamanuia: bauxite o loʻo i ai tulaga maualuga alumini ma o se mea mataʻutia taua mo alamanuia faʻafefe alumini;
2. Tu'u sa'o: e mafai ona faia le bauxite i ituaiga eseese o fa'ameamea pe'ā uma ona fa'agaioiina, fa'aaoga masani i feso'ota'iga, meafaigāluega, masini ma meafaigaluega;
3. Refractory mea: bauxite o loʻo i ai mea lelei e pei o le faʻalauteleina o le vevela, maualuga le maualuga, ma le maualuga o le maualuga o le vevela, ma avea ai ma mea masani masani mo mea faʻafefe. Refractory mea e faia i ai e masani ona faʻaaogaina i uʻamea, metallurgy e le o ferrous, suauu, vailaʻau ma isi fanua tau alamanuia.
4. Mea faufale: e mafai ona faʻaleleia le malosi ma le maʻaʻa o mea e pei o le sima, sima, ma le sima le paʻu o le bauxite, aʻo faʻaleleia foi lo latou tumau ma le faʻafefe.