Preparation of castor oil and the refining process, castor oil through different processing methods can produce different uses of castor oil products. Such as cold-pressed method, commonly used to produce excellent medical use castor oil and hot pressing and solvent extraction Preparation of castor oil yield is higher, the chemicals used to produce raw castor oil.
Ricinoleic acid in castor oil containing 73 to 85% of ricinoleic acid having a hydroxyl group (-OH) stearidonic acid, which has a strong polarity, Preparation of castor oil and the refining process more difficult than other vegetable oils .
Castor oil refining traditional conventional batch-based mostly, although the process is more mature, but in the actual process due to the unique physical and chemical properties of castor oil to the operational stability of the process is poor, difficult to control, and high production costs, labor strength, refined oil also has a high performance instability.
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