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Development of high efficiency, low toxicity, low residue of green new pesticides has become the trend of The Times, is derived from natural products of pesticides has become one of research hot spots. As a kind of natural products, fatty acid and its ester from animal fats, salt and other derivatives used as a pesticide and fertilizer, to cause the attention of the researchers. In this paper, the solid alkali catalyst preparation of fatty acid ester oil and alcohol ester exchange reaction, focuses on the development of solid base catalyst and process optimization. With solid alkali catalyzed transesterification reaction, a catalyst can be recycled use again, do not produce waste water, simple post-treatment, and many other homogeneous base catalyst has the advantages of not, so although started late, but development soon, the lift of solid alkali research upsurge. This paper mainly studies the metallic oxide solid alkali and composite solid base. After large Numbers of experimental screening, found KNO < sub > 3 < / sub > / gamma - Al < sub > 2 < / sub > O < sub > 3 < / sub > solid alkali has good catalytic activity, ester content in the product could reach 88.97%.
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