（1） Kuyeretsa zosungunulira zachilengedwe

Imagwiritsa ntchito makamaka zinthu zosungunulira zachilengedwe kuti isungunule mafuta osungunuka ndi osasungunuka kuti ichotse madontho a mafuta. Zinthu zosungunulira zachilengedwe zomwe zimagwiritsidwa ntchito kwambiri ndi monga ethanol, mafuta oyeretsera, toluene, carbon tetrachloride, trichloroethylene, ndi zina zotero. Zinthu zosungunulira zothandiza kwambiri ndi carbon tetrachloride ndi trichloroethylene, zomwe sizingapse ndipo zingagwiritsidwe ntchito pochotsa mafuta kutentha kwambiri. Tiyenera kudziwa kuti mafuta akachotsedwa ndi zinthu zosungunulira zachilengedwe, mafuta owonjezera ayeneranso kuchotsedwa. Pamene zinthu zosungunulira zasintha pamwamba pa mafuta.chubu chamakona anayi, nthawi zambiri pamakhala filimu yopyapyala yotsala, yomwe ingachotsedwe m'njira zotsatirazi monga kuyeretsa alkali ndi kuchotsa mafuta amagetsi.

(2) Kuyeretsa kwamagetsi

Kuchotsa mafuta a cathode kapena kugwiritsa ntchito njira ina ya anode ndi cathode ndiko komwe kumagwiritsidwa ntchito kwambiri. Mpweya wa haidrojeni wolekanitsidwa ndi cathode kapena mpweya wa okosijeni wolekanitsidwa ndi anode ndi electrochemical reaction umasunthidwa ndi yankho pamwamba pachubu chamakona anayikuti mafuta azitha kutuluka pamwamba pa chitsulo. Nthawi yomweyo, yankho limasinthidwa nthawi zonse, zomwe zimapangitsa kuti mafuta ayambe kusungunuka komanso kuti mafutawo asungunuke. Mafuta otsalawo amalekanitsidwa ndi pamwamba pa chitsulocho mothandizidwa ndi thovu lolekanitsidwa nthawi zonse. Komabe, pochotsa mafuta m'thupi, hydrogen nthawi zambiri imalowa mu chitsulocho, zomwe zimapangitsa kuti hydrogen isungunuke. Pofuna kupewa hydrogen isungunuke, cathode ndi anode nthawi zambiri zimagwiritsidwa ntchito kuchotsa mafuta mosinthana.

（3） Kuyeretsa kwa alkaline

Njira yoyeretsera pogwiritsa ntchito mankhwala a alkali imagwiritsidwa ntchito kwambiri chifukwa cha kugwiritsidwa ntchito kwake kosavuta, mtengo wotsika komanso kupezeka mosavuta kwa zinthu zopangira. Popeza njira yotsukira alkali imadalira saponification, emulsification ndi ntchito zina, alkali imodzi singagwiritsidwe ntchito kuti igwire ntchito yomwe ili pamwambapa. Zigawo zosiyanasiyana nthawi zambiri zimagwiritsidwa ntchito, ndipo zowonjezera monga ma surfactants nthawi zina zimawonjezeredwa. Alkalinity imatsimikizira kuchuluka kwa saponification reaction, ndipo alkalinity yambiri imachepetsa kukangana pakati pa mafuta ndi yankho, zomwe zimapangitsa kuti mafuta azikhala osavuta kusungunuka. Kuphatikiza apo, chotsukira chimatsala pamwamba pagawo lokhala ndi dzenje lamakona anayiakhoza kuchotsedwa potsuka ndi madzi pambuyo potsuka ndi alkali.

(4) Kuyeretsa kwa surfactant

Ndi njira yochotsera mafuta yomwe imagwiritsidwa ntchito kwambiri pogwiritsa ntchito makhalidwe a surfactant monga kutsika kwa mphamvu pamwamba, kunyowa bwino komanso mphamvu yamphamvu yopangira emulsifying. Kudzera mu emulsifying ya surfactant, chigoba cha nkhope cholumikizana ndi nkhope chokhala ndi mphamvu inayake chimapangidwa pa malo olumikizirana ndi mafuta kuti chisinthe momwe malo olumikizirana alili, kotero kuti tinthu ta mafuta timafalikira mu yankho lamadzi kuti tipange emulsion. Kapena kudzera mu kusungunuka kwa surfactant, banga la mafuta silisungunuka m'madzi pa malo olumikizirana.chubu chamakona anayiimasungunuka mu micelle ya surfactant, kuti isamutse banga la mafuta ku yankho lamadzi.