Bauxite yeej hais txog cov hlau uas tuaj yeem siv hauv kev lag luam, nrog gibront, boehmite lossis diaspore yog cov khoom siv tseem ceeb. Nws daim teb thov suav nrog hlau thiab tsis yog hlau.
Bauxite yog cov khoom siv zoo tshaj plaws rau kev siv cov khoom siv hlau, thiab nws kuj yog qhov tseem ceeb tshaj plaws thov daim teb. Nws tau noj tso nyiaj rau ntau dua 90% ntawm lub ntiaj teb' s tag nrho cov bauxite tawm.
Kev siv cov hlau tsis siv hlau bauxite feem ntau yog siv los ua cov khoom siv rau cov ntaub ntawv refractory, cov ntaub ntawv tsis zoo, tshuaj ntxuav thiab siab alumina xis mas. Txawm hais tias qhov kev faib ua feem ntawm bauxite hauv cov khoom noj uas tsis yog xim hlau yog me me, nws muaj ntau yam siv. Piv txwv li: cov khoom siv tshuaj lom neeg xws li sulfate, trihydrate thiab aluminium chloride tuaj yeem siv hauv papermaking, dej ntxuav, ceramics thiab roj av; alumina qhib txais yuav siv tau los ua catalyst, catalyst carrier thiab catalyst cab kuj hauv tshuaj lom neeg, roj ua kom zoo, thiab kev lag luam kws tshuaj. Kev txiav txim siab, lub cev qhuav dej, ua kom tsis zoo, deacidification, kom qhuav thiab lwm yam adsorbents lub cev; aluminium chloride tsim nrog r-Al2O3 tuaj yeem siv rau hauv cov tshuaj pleev ib ce xws li dyes, roj hmab, tshuaj, thiab roj av; iav muaj pes tsawg leeg muaj 3% -5% Al2O3 Nws tuaj yeem txhim kho lub ntsiab lus melting, viscosity, thiab lub zog; cov ntaub ntawv abrasive yog cov ntaub ntawv tseem ceeb raw rau qib qib sib tsoo log thiab polishing hmoov; Cov ntaub ntawv refractory yog qhov tseem ceeb ntawm cov khoom siv rau kev tsim ua cua sov hauv kev lag luam.
Aluminium yog hlau thib ob tseem ceeb tshaj plaws hauv ntiaj teb tom qab hlau. Xyoo 1995, lub ntiaj teb' s kev siv rau ib tus neeg tau nce txog 3.29kg. Vim tias txhuas muaj qhov tshwj xeeb me me kev txhim kho, zoo hluav taws xob thiab thermal conductivity, yooj yim machining thiab ntau lwm yam khoom zoo, nws tau dav siv nyob rau hauv ntau cov haujlwm ntawm kev lag luam hauv lub teb chaws. Tam sim no, kev siv aluminium ntau tshaj plaws nyob hauv lub ntiaj teb yog kev tsim kho, tsheb thauj mus los thiab ntim khoom, suav tau ntau dua 60% ntawm tag nrho cov kev siv aluminium. Aluminium yog qhov tsis tseem ceeb ntawm cov khoom siv hluav taws xob rau kev lag luam hluav taws xob, kev tsim khoom dav hlau, kev lag luam tshuab thiab khoom siv hauv zej zog.