Method for synthesizing bifenthrin by using fluidized bed

The invention belongs to the technical field of chemical synthesis, and particularly relates to a method for synthesizing bifenthrin by using a boiling bed. The method comprises the following steps: putting crushed biphenyl alcohol solid powder into a boiling bed, drying to a boiling state through hot nitrogen, suspending the boiling solid powder between catalyst laminates, blowing atomized kung-fu acyl chloride from the lower side of the boiling bed by an atomization device, and pumping hydrogen chloride gas generated by reaction at an exhaust side through low vacuum, and dissolving, crystallizing, centrifuging and drying the synthesized bifenthrin solid material to obtain the finished product biphenyl raw powder. The method is simple to operate, reduces the use of a solvent for a synthesis reaction, and avoids the generation of wastewater in a post-treatment process. 本发明属于化学合成技术领域，具体的说涉及一种利用沸腾床合成联苯菊酯的方法。将粉碎的联苯醇固体粉体投入沸腾床内，通过热氮气烘干至沸腾状态，沸腾的固体粉末悬浮于催化剂层板间，而后由雾化装置从沸腾床下侧鼓进雾化的功夫酰氯，同时在排气侧通过低真空抽走反应生成的氯化氢气体，合成的联苯菊酯固体料