Bleaching section is a major part of palm oil mill process. Bleaching section is mainly used to remove oil pigment, residual soap particles and metal ions. Under negative pressure, the mechanical mixing method combined with steam mixing will improve the bleaching effect.Feel free to inquiry about cost of our palm oil refinery machines or detailed information about starting a small or large palm oil refinery plant! We are always at your services! Bleaching is one of the key processes of edible palm oil refinery. Palm oil bleaching is generally designed before deodorization in palm oil refinery.