Yintoni i-flotation?

I-Flotation, eyaziwa ngokuba yi-froth flotation okanye i-mineral flotation, yindlela yokwenza inzuzo eyahlula iiminerali ezixabisekileyo kwiiminerali ze-gangue kwindawo yokuhlangana kwegesi-ulwelo-eqinileyo ngokusebenzisa umahluko kwiipropati zomphezulu weeminerali ezahlukeneyo kwi-ore. Ikwabizwa ngokuba "kukwahlulwa kwe-interfacial." Nayiphi na inkqubo esebenzisa ngokuthe ngqo okanye ngokungathanga ngqo iipropati zomphezulu ukufezekisa ukwahlulwa kwe-particle ngokusekelwe kumahluko kwiimpawu zomphezulu wee-mineral particles ibizwa ngokuba yi-flotation.

Iimpawu zomphezulu weeminerali zibhekisa kwiimpawu zomzimba nezekhemikhali zee-minerali, ezinje ngokumanzi komphezulu, itshaja yomphezulu, iintlobo zeebhondi zeekhemikhali, ukugcwala, kunye nokusebenza kwakhona kwee-athomu zomphezulu. Ii-minerali ezahlukeneyo zibonisa umahluko othile kwiimpawu zazo zomphezulu. Ngokusebenzisa olu mahluko kunye nokusebenzisa ukusebenzisana phakathi kwe-interfacial, ukwahlulwahlulwa kweeminerali kunye nokutyebisa kunokufezekiswa. Ke ngoko, inkqubo yokudada ibandakanya ujongano lwe-gas-liquid-solid three-phase.

Iipropati zomphezulu weeminerali zinokuguqulwa ngokwenziwa ukuze kuphuculwe umahluko phakathi kwamasuntswana eeminerali axabisekileyo kunye nalawo angenambala, ngaloo ndlela kube lula ukwahlukana kwawo. Kwi-flotation, ii-reagents zihlala zisetyenziselwa ukutshintsha iipropati zomphezulu weeminerali, zikhulisa ukungafani kwiimpawu zazo zomphezulu kwaye zilungise okanye zilawule i-hydrophobicity yazo. Olu lawulo lulawula ukuziphatha kwe-flotation kweeminerali ukuze kufumaneke iziphumo ezingcono zokwahlukana. Ngenxa yoko, ukusetyenziswa kunye nokuqhubela phambili kwetekhnoloji ye-flotation kunxulumene kakhulu nophuhliso lwee-flotation reagents.

Ngokungafaniyo noxinano okanye ukuthambekela kwemagnethi—iipropati zeminerali ezinzima ukuzitshintsha—iipropati zomphezulu weenxalenye zeminerali ngokubanzi zinokulungiswa ngokwenziwa ukuze kudalwe umahluko ofunekayo phakathi kweziminerali ukuze kwahlulwe ngempumelelo. Ngenxa yoko, ukutyibilika kusetyenziswa kakhulu ekutyibilikeni kweziminerali kwaye kudla ngokuthathwa njengendlela yokunceda jikelele. Isebenza kakhulu kwaye isetyenziswa kakhulu ekuhlukaniseni izinto ezincinci nezincinci kakhulu.