E rua ngā momo rauemi mata mō te hanga alumina whakahohe, ko tētahi he "paura tere" i hangaia e te trialumina, e te kōhatu Bayer rānei, ā, ko tētahi he mea hanga e te aluminate, te tote konumohe rānei, e rua rānei i te wā kotahi.
X,ρ-alumina me te hanga o X,ρ-konumina
Ko te X, ρ-alumina te rauemi mata matua mō te hanga pōro alumina whakahohe, FCA rānei te whakarapopototanga. I Haina, ka kiia ko te "paura tuku tere" nā te mea i hangaia te paura alumina mā te tikanga whakamaroke tere. Ko te "paura tango tere" he ranunga o te X-alumina me te p-alumina me ngā ihirangi rerekē nā runga i ngā tikanga whakaputa rerekē.
I kitea te X,ρ-alumina i te tau 1950, ā, i whakamanahia e te ASTM i te tau 1960. I ngā tau 1970, i whakamahia a x me Ūropi. Ko te mea nui ki te hangarau X,ρ-alumina ko te whakamaroke tere, i roto i te tauhohenga moenga wai, e whakahaerehia ana te pāmahana o te moenga e te hau mura, te wai rānei. I ngā tau 1975-1980, i angitu te whakawhanake a te Tianjin Institute of Chemical Industry i te hangarau whakaputa tango tere whakamahana whakatārewatanga me ngā āhuatanga o te hangarau Hainamana. I whakamahia e rātou te tauhohenga kōne, i tāpirihia te hauwai konumohe maroke me te kuru, ā, i hangaia te ranunga o te X-alumina me te ρ-alumina mā te tunu tere i te 0.1~10s i roto i te oumu whakamaroke tere.
Wā tuku: Paenga-whāwhā-01-2023
