Bauxite

Bauxite (bauxite ore) na-ezo aka n'okwu mkpokọta maka mineral ndị enwere ike iji na ụlọ ọrụ, nke kachasị nke gibbsite, boehmite, ma ọ bụ diaspore.

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Nkọwa

Bauxite (bauxite ore) na-ezo aka n'okwu mkpokọta maka mineral ndị enwere ike iji na ụlọ ọrụ, nke kachasị nke gibbsite, boehmite, ma ọ bụ diaspore. Ọ bụ akụrụngwa enweghị ike imeghari. Bauxite dị ọcha na-acha ọcha na agba ma nwee ike ịpụta ìhè isi awọ, akwụkwọ ndụ akwụkwọ ndụ dị ọkụ, ma ọ bụ na-acha uhie uhie n'ihi adịghị ọcha dị iche iche. Bauxite nwere ọtụtụ ngwa ụlọ ọrụ mmepụta ihe. N'otu aka ahụ, ọ bụ isi akụrụngwa maka ịmepụta alumina, nke na-emepụta aluminum. N'aka nke ọzọ, a na-eji ya eme ihe n'ọtụtụ ebe dị ka ihe eji eme ihe na ụlọ ọrụ ndị dị ka ihe mgbagha, corundum fused, ihe egweri, ngwaahịa seramiiki, ngwaahịa kemịkalụ, na nnukwu 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%.

Ihe ngosi ngwaahịa

Bauxite	Nha (mm)	Al2O3(%)	SiO2(%)	Elu(%)	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

Ngwa

Ụlọ ọrụ aluminom: bauxite nwere nnukwu ihe aluminom ma bụrụ ihe dị mkpa maka ụlọ ọrụ na-agbaze aluminum;
2. Nkedo nkenke: enwere ike ịme bauxite ka ọ bụrụ ụdị nkedo dị iche iche mgbe emechara ya, nke a na-ejikarị eme ihe na nkwurịta okwu, ngwá ọrụ, igwe na ụlọ ọrụ akụrụngwa;
3. Ntugharị ihe: bauxite nwere ihe ndị dị mma dị ka mgbasawanye ọkụ dị ala, nnukwu refractoriness, na nkwụsi ike dị elu nke okpomọkụ, na-eme ka ọ bụrụ ihe eji eme ihe maka ihe ndị na-emepụta ihe. A na-ejikarị ihe ndị na-emepụta ihe na-eme ka ọ bụrụ ígwè, ígwè na-adịghị ferrous, mmanụ ala, kemịkalụ na mpaghara mmepụta ihe ndị ọzọ.
4. Ihe owuwu ụlọ: ntụ ntụ bauxite nwere ike imeziwanye ike na ike nke ihe ndị dị ka ciment, ngwa agha, na ihe, ma na-eme ka ha dị ogologo na nkwụsị nke corrosion.