He mea hanga te alumina parauri kua whakaranua ki te bauxite kounga teitei hei rauemi mata, hei anthracite me ngā kongakonga rino. Ka hangaia mā te whakarewa pewa i te pāmahana 2000°C, neke atu rānei. Ka kuruhia, ka whakakirihouhia mā te mīhini huri-ake, ka tīpakohia mā te aukume hei tango i te rino, ka tātarihia ki ngā rahi rerekē, ā, he matotoru, he mārō hoki tōna kakano. Ko ngā pire teitei, porowhita, e tika ana mō te hanga uku, te kapia whakakoi ātete-teitei me te huri, te whakakanapa, te pupuhi onepu, te whakarewanga tika, me ētahi atu, ka taea hoki te whakamahi hei hanga i ngā mea whakakākahu kounga teitei.
| Tono | Whakatakotoranga | Te hanganga matū matua% | Matū aukume% | ||||
| Al2o3 | Fe2o3 | Sio2 | Tio2 | ||||
| Ngā mea whakakoi | F | 4#-80# | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ≤0.05 |
| 90#—150# | ≥94 | ≤0.03 | |||||
| 180#—240# | ≥93 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.02 | ||
| P | 8#—80# | ≥95.0 | ≤0.2 | ≤1.2 | ≤3.0 | ≤0.05 | |
| 100#—150# | ≥94.0 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.03 | ||
| 180#—220# | ≥93.0 | ≤0.5 | ≤1.8 | ≤4.0 | ≤0.02 | ||
| W | 1#-63# | ≥92.5 | ≤0.3 | ≤1.5 | ≤3.0 | --------- | |
| Ātete-kore | Duansha | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | --------- |
| 25-0mm 10-0mm 50-0mm 30-0mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | --------- | ||
| Paura | 180#-0 200#-0 320#-0 | ≥94.5 ≥93.5 | ≤0.5 | ≤1.5 | ≤3.5 | --------- | |
Ngā rauemi whakakoi: Wira huri, whitiki whakakoi, pepa kirikiri, kakahu whakakoi, wahi tapahi, hangarau pupuhi kirikiri, huri, papa ātete-kakahu, tapahi pupuhi wai, whakakoi pania, whakakoi whakakotahi, me ētahi atu.
Ngā rauemi ātete ahi: Ka taea te whakarewa, te pereki ātete ahi, te rauemi tāmi, te pereti reti, te pūwero, te koko, te rauemi arai, te whakarewa tika, me ētahi atu
Ngā horopaki tono mō te alumina parauri kua whakakāhia
Mena he pātai āu, tēnā whakapā mai.