Zinyalala zopangira mafuta owonjezera njira yothetsera
Mafuta opaka zinyalala nthawi zambiri amachotsedwa mumafuta osapsa, makamaka opangidwa ndi mafuta oyambira ndipo amakhala ndi zowonjezera ndi zina. Pogwiritsa ntchito, zimatha kuwonongeka chifukwa cha okosijeni, zonyansa zomwe zimalowa, ndi zifukwa zina, zomwe zimapangitsa kusintha kwa thupi kapena mankhwala monga kachulukidwe, kukhuthala, kung'anima, ndi zina zotero, komanso kupanga mchere wa organic acid ndi zonyansa zina, zomwe sizingagwirizane ndi miyezo yogwiritsira ntchito ndikuwononga chuma. Njira yopangiranso mafuta opaka zinyalala imaphatikizapo kuchotsa zinthu zomwe zidawonongeka kuchokera mumafuta opaka pogwiritsa ntchito njira zakuthupi kapena zamankhwala kuti zikwaniritse zofunikira.
Njira zochiritsira zofala
1.Kuyenga Mwathupi
Njira zoyeretsera thupi zimaphatikizapo centrifugal sedimentation, acid acid process, etc., zomwe zimagwiritsidwa ntchito makamaka pochiza zinyalala zamafuta opaka mafuta okhala ndi kuipitsidwa kochepa komanso kosavuta kuchotsa zowononga. Komabe, njirayi imangokhala ndi kulekanitsa kwa thupi kosavuta, zonyansa sizimachotsedwa kwathunthu, ndipo zotsatira zoyenga zimakhala zoipa.
2.Chemical Refining
Njira yoyenga mankhwala makamaka imagwiritsa ntchito asidi kuti igwirizane ndi zonyansa zamafuta opaka mafuta opangira mankhwala. Madzi otayira ndi gasi amapangidwa mosavuta pochita izi, zomwe zimawononga chilengedwe ndikuwononga zida.
