Khetha ulimi:
Aluminium yisona esikhulunywa abantu abaningi isici metal wathola Emhlabeni. Nokho, i-aluminiyamu sisebenzisa namuhla iza ngesimo aluminiyamu zensimbi alumina, owaziwa nangokuthi aluminium oxide, okuyinto ikhiqizwa bauxite. Ukuze ukukhulula alumina zokusetshenziswa, bauxite kumele zidlule lokho njengoba inqubo Bayer eyaziwa, lapho bauxite uchotshoziwe, ke ukufuthelana esitsheni Umfutho futhi wavala ne-sodium hydroxide (soda caustic). I alumina ke uhlukane nezinye izingxenye kanye ukungcola eziqukethwe bauxite ukuze ekugcineni elicwengisiswe ku-aluminiyamu.
Ngeshwa, imfucuza uyasala okuthiwa obomvu ngodaka kuyinto ezinobuthi futhi kumelwe ahlale ebambe amachibi lize kubuyele esimweni esivamile. Lezi impoundments zivame luqiniswe ubumba noma zokwenziwa liner ukuthi ukugcina izinto caustic kusukela seeping enhlabathini noma phansi amanzi ezungeze. Nokho, sekube eziningi izimo lapho amadamu udaka olubomvu afohle confinements yabo futhi yabangela izinkinga inhlekelele kwemvelo.
ST Izinsiza kusebenza & Ubuchwepheshe has a indlela engcono ukukhiqiza alumina. Inqubo STET kususa silicates esisheshayo futhi oxides inert (Fe, ti) kusukela bauxite ngaphandle ukusetshenziswa kwezinto eziphinde zisebenziseke caustic noma ezimanzi ngokwahlukana izinqubo. Ngokusebenzisa triboelectrostatic yethu ehlukile inqubo yokwehlukanisa eyomile, Ngezinga elikhulu alumina kungenziwa ekhishwe bauxite nge phambi ababhekene Bayer Process. Izakhi ezisele inqubo kungasetshenziswa ekukhiqizeni Ceramic, kanye Portland usimende yokukhiqiza. I okucolekile adalwe inqubo kungalawuleka ngamanzi ukuze ngikuvimbele ukudala uthuli amafu, kodwa okuholela "nasodakeni" ayiqukethe izinto caustic futhi ngokuphelele ephephile imvelo.
Ngakho, uma wengeza up zonke izinzuzo, ST Izinsiza kusebenza & indlela Technology kuyindlela engcono kakhulu. It kusindisa izindleko ngokufaka wehlise ukusetshenziswa soda caustic, okuyinto kokubili izindleko inzuzo kanye isibusiso kwemvelo. Iphinde konga imali ngokwenza pre-Bayer ngokucubungula bauxite, okuholela amandla amancane adingekayo ukufudumeza kanye pressurize izinto okuthunyelwe elihlukaniswe. futhi, i-ST Izinsiza kusebenza & inqubo Ubuchwepheshe eyonga ugesi, ngakho-ke ungakwazi ngokushesha ukucubungula ivolumu eliphezulu izinto ukugcina imisebenzi yezimayini ezihamba phambili.
