共沸萃取法制取纯乙醛肟

Process for the Production of Pure Acetaldehyde Oxime by the Principle of Aceotropic Extraction

介绍了通过所选用的溶剂，利用共沸萃取原理，制取纯乙醛肟的工艺过程。所得乙醛肟纯度达到９８％以上，收率达到９０％，解决了乙醛肟提取过程中含量低、收率低的问题。

The present artical provides a process for the production of pure acetaldehyde oxime by the principle of aceotropic extraction and the selected solvent.Purity of the collected acetaldehyde oxime is more than 98% and yield is more than 90%.This method solved the problem of the lower purity and the lower yield of acetaldehyde oxime.