System and method for continuously producing high-quality and high-selectivity benzaldehyde and benzoic acid by using jet loop reactor

The invention discloses a system and a method for continuously producing high-quality and high-selectivity benzaldehyde and benzoic acid by using a jet loop reactor. The system comprises a jet loop reactor, a toluene removal tower, a dividing wall tower and a benzaldehyde rectifying tower. Based on the system, toluene oxidation reaction is performed in the jet loop reactor by taking toluene as a raw material, oxygen as an oxidizing agent and organic salt as a catalyst, and oxidation liquid after reaction is subjected to product purification through the toluene removal tower, the dividing walltower and the benzaldehyde rectifying tower, so that continuous production of high-quality and high-selectivity benzaldehyde and benzoic acid is realized. By means of the mode, the selectivity of benzaldehyde can be effectively improved, and high-quality benzoic acid and benzaldehyde with high purity can be produced. The production system is simple in structure and low in equipment investment, theproduction method is simp