Ko te tikanga o te tango konumohe mai i te bauxite ko te wehe i te konumohe toru-hauora mai i te bauxite. Hei whakatutuki i te kaupapa, e toru ngā huarahi: te tikanga waikawa, te tikanga kawakore, te tikanga whakakotahi waikawa-pūtake me te tikanga wera. Heoi, kāore te tikanga waikawa, te tikanga whakakotahi waikawa-pūtake me te tikanga wera e whakamahia nuitia ana i roto i te ahumahi nā te mea he haumaru, he painga ōhanga hoki. Ka whakamahia te tikanga kawakore i roto i te whakaputa ahumahi.

E toru ngā tikanga mō te tango i te alumina trioxide mā te whakamahi i te tikanga kawakore, arā, ko te tikanga whakapūkara, te tikanga bayer me te tikanga whakakotahi. Hei tauira, ka tangohia te tikanga whakapūkara.

Tikanga whakapūkara: Te tāpiri i tētahi nui o te konupūmā kāponāte ki roto i te bauxite, he matū ko te konutai aluminate te wāhanga matua ka hangaia i muri i te whakapūkara pāmahana teitei i roto i te oumu hurihuri. Hei whakamutunga, ka whiwhihia te alumina i muri i te whakarewanga, te whakatioatatanga me te tunu.