Preparation of P Nitrobenzoic Acid from waste foam plastics

P-nitrobenzoic acid (PnBA) is mainly used in the manufacture of strong fibers, pesticides, dyes, resins, metal surface antirust agents, sunscreen agents, color film couplers and filters. The waste foamed plastics can be obtained by nitrification and oxidation. This method has the advantages of easy access to raw materials, simple process and high added value of products, which is suitable for promotion in township enterprises.