| 摘要 |
Provided herein are processes for the production of biodiesel. In particular, provided is an esterification process in which an alcohol reacts with free fatty acids in a lipid material comprising free fatty acids and glycerides in the presence of an immobilized zirconium(IV) metal salt to form fatty acid alkyl esters. Also provided is combination process in which an esterification reaction converts the free fatty acids in a lipid material to fatty acid alkyl esters and a transesterification reaction converts the glycerides in the material to fatty acid alkyl esters.
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