Kodi flotation ndi chiyani?

Flotation, yomwe imadziwikanso kuti froth flotation kapena mineral flotation, ndi njira yopezera phindu yomwe imalekanitsa mchere wamtengo wapatali ndi mchere wa gangue pamalo owoneka bwino a gasi-liquid-solid potengera kusiyana kwa zinthu zakumtunda kwa mchere wosiyanasiyana mu ore. Imatchedwanso "interface separation". Njira iliyonse yomwe imagwiritsa ntchito mwachindunji kapena mosadziwika bwino kuti ikwaniritse kulekana kwa tinthu tating'ono potengera kusiyana kwa mawonekedwe a mineral particles imatchedwa flotation.

Maonekedwe a pamwamba a mchere amatanthawuza mawonekedwe a thupi ndi mankhwala a tinthu tating'onoting'ono tating'onoting'ono, monga kunyowa pamwamba, kuchuluka kwa pamwamba, mitundu ya ma bond a mankhwala, machulukitsidwe, ndi kuyambiranso kwa maatomu apamtunda. Ma mineral particles osiyanasiyana amawonetsa kusiyanasiyana kwazinthu zawo. Pogwiritsa ntchito kusiyana kumeneku ndikugwiritsa ntchito machitidwe apakati, kupatukana kwa mchere ndi kulemeretsa kungathe kukwaniritsidwa. Choncho, ndondomeko yoyandama imaphatikizapo mawonekedwe a magawo atatu a gasi-zamadzimadzi-olimba.

The pamwamba katundu wa mchere akhoza chongopeka kusinthidwa kumapangitsanso kusiyana kwamtengo wapatali ndi gangue mchere particles, potero atsogolere kulekana kwawo. Pakuyandama, ma reagents nthawi zambiri amagwiritsidwa ntchito kusintha mawonekedwe a mchere, kukulitsa kusiyana kwa mawonekedwe awo apamwamba ndikusintha kapena kuwongolera hydrophobicity yawo. Kuwongolera uku kumayang'anira machitidwe oyandama a mchere kuti apeze zotsatira zabwino zolekanitsa. Chifukwa chake, kugwiritsa ntchito ndi kupititsa patsogolo ukadaulo wa flotation ndizogwirizana kwambiri ndi chitukuko cha ma reagents oyandama.

Mosiyana ndi kachulukidwe kapena kukhudzidwa kwa maginito - zinthu za mineral zomwe zimakhala zovuta kusintha - mawonekedwe a pamwamba a mineral particles amatha kusinthidwa mwachisawawa kuti apange kusiyana kofunikira pakati pa mchere kuti apatukane bwino. Zotsatira zake, kuyandama kumagwiritsidwa ntchito kwambiri mu mineral beneficiation ndipo nthawi zambiri kumawoneka ngati njira yopezera phindu padziko lonse lapansi. Ndiwothandiza kwambiri komanso amagwiritsidwa ntchito kwambiri pakulekanitsa zinthu zabwino kwambiri komanso zabwino kwambiri.