Oils or fats containing high amounts of phosphorus and high amounts of fatty acids are degummed and
deacidified in two steps. The degumming process, which removes the phosphorus, is similar to the
Standard Oil & Fat Pretreatment process but does not neutralize the fatty acids.
After degumming, the fatty acids are removed under vacuum at a high temperature. This deacidification
process is also known as stripping because a small amount of low pressure steam is used to strip the fatty
acids from the oil or fat.
Some oils and fats containing low amounts of phosphorus and high amounts of fatty acids are degummed
by adding acid in the silica adsorption process. The acid is added and reacted in a separate vessel prior to
the silica addition step. Since these oils and fats are deacidified by stripping, the neutralizing process is
not required.
The phosphorus and fatty acid content of the discharged oil is equivalent to refined and bleached, or RB, quality.
Oils or fats containing high amounts of phosphorus and high amounts of fatty acids are degummed anddeacidified in two steps. The degumming process, which removes the phosphorus, is similar to theStandard Oil & Fat Pretreatment process but does not neutralize the fatty acids.After degumming, the fatty acids are removed under vacuum at a high temperature. This deacidificationprocess is also known as stripping because a small amount of low pressure steam is used to strip the fattyacids from the oil or fat.Some oils and fats containing low amounts of phosphorus and high amounts of fatty acids are degummedby adding acid in the silica adsorption process. The acid is added and reacted in a separate vessel prior tothe silica addition step. Since these oils and fats are deacidified by stripping, the neutralizing process isnot required.The phosphorus and fatty acid content of the discharged oil is equivalent to refined and bleached, or RB, quality.
การแปล กรุณารอสักครู่..
