Method for recycling peach aldehyde by-product

The invention belongs to the technical field of fine chemical engineering, and discloses a peach aldehyde byproduct recycling method which specifically comprises the following steps: firstly, adding a byproduct generated by synthesizing peach aldehyde into a reaction kettle, heating, dropwise adding an acid catalyst, carrying out heat preservation decomposition, cooling to normal temperature, standing for layering, washing an upper organic layer, distilling to obtain octanol, and recycling, and the lower layer is an acidic catalyst for mechanical application. Sulfuric acid or benzenesulfonic acid water-soluble acid is used as a catalyst to treat the peach aldehyde byproduct, catalytic decomposition is performed on the peach aldehyde byproduct at a certain temperature, effective components in the high-boiling-point byproduct are decomposed, excessive octanol is recycled through rectification for reuse, comprehensive utilization of the peach aldehyde byproduct is realized, unit consumption of raw materials is r