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.

• 所得乙醛肟纯度达到98%25以上，收率达到90%25，解决了乙醛肟提取过程中含量低、收率低的问题。