Kuyini ukuntanta?

I-Flotation, eyaziwa nangokuthi i-froth flotation noma i-mineral flotation, iyindlela yokwenza inzuzo ehlukanisa amaminerali abalulekile kumaminerali e-gangue endaweni yokuhlangana kwegesi-uketshezi-eqinile ngokusebenzisa umehluko ezimpahleni zamaminerali ahlukahlukene ku-ore. Ibizwa nangokuthi "ukuhlukaniswa kwe-interfacial." Noma iyiphi inqubo esebenzisa ngokuqondile noma ngokungaqondile izakhiwo ze-interfacial ukufeza ukuhlukaniswa kwezinhlayiya ngokusekelwe ekungafani kwezici zangaphandle zezinhlayiya zamaminerali ibizwa ngokuthi i-flotation.

Izakhiwo zamaminerali ezingaphezulu zibhekisela ezicini zomzimba nezamakhemikhali zezinhlayiya zamaminerali, njengokumanzika komhlaba, ukushaja komhlaba, izinhlobo zezibopho zamakhemikhali, ukugcwala, kanye nokusebenza kabusha kwama-athomu aphezulu. Izinhlayiya zamaminerali ezahlukene zibonisa ukwehluka okuthile ezicini zazo zangaphezulu. Ngokusebenzisa lo mehluko nokusebenzisa ukusebenzisana kwe-interfacial, ukuhlukaniswa kwamaminerali nokucebisa kungafinyelelwa. Ngakho-ke, inqubo yokuntanta ihilela isixhumi se-gas-liquid-solid esinezigaba ezintathu.

Izakhiwo zamaminerali ezingaphezulu zingashintshwa ngokwenziwa ukuze kuthuthukiswe umehluko phakathi kwezinhlayiya zamaminerali ezibalulekile nezingenasici, ngaleyo ndlela kube lula ukuhlukana kwazo. Ekuntanteni, ama-reagent ngokuvamile asetshenziselwa ukushintsha izakhiwo zamaminerali ezingaphezulu, okwandisa ukungalingani ezicini zawo zangaphezulu kanye nokulungisa noma ukulawula ukungezwani kwawo namanzi. Lokhu kuguqulwa kulawula ukuziphatha kokuntanteni kwamaminerali ukuze kutholakale imiphumela engcono yokuhlukana. Ngenxa yalokho, ukusetshenziswa kanye nokuthuthuka kobuchwepheshe bokuntanteni kuhlobene kakhulu nokuthuthukiswa kwama-reagent okuntanteni.

Ngokungafani nobuningi noma ukuzwela kwamandla kazibuthe—izakhiwo zamaminerali okunzima ukuzishintsha—izakhiwo zangaphezulu zezinhlayiya zamaminerali ngokuvamile zingalungiswa ngokwenziwa ukuze kudalwe umehluko odingekayo phakathi kwamaminerali ukuze kuhlukaniswe ngempumelelo. Ngenxa yalokho, ukuntanta kusetshenziswa kabanzi ekuhlomuleni amaminerali futhi kuvame ukubhekwa njengendlela yokuhlobisa yonke indawo. Isebenza kahle kakhulu futhi isetshenziswa kabanzi ekuhlukaniseni izinto ezincane nezincane kakhulu.