Nitrobenzene or caswell No. 600 chemical material use in themanufacture of various plastic monomers and polymers, rubber chemicals,drugs, pesticides, soaps, and as a solvent in petroleum refining andmanufacture of cellulose ethers and cellulose acetate…ectThe production capacity of nitrobenzene 70000 ton/year, this capacitywas take as rough estimation for the requirements of our country. Nitrobenzene is manufacture commercially by the direct nitration of benzene using a mixture of nitric acid and sulfuric acid, many processes for this manufacture but the more safety, economic and lower capital cost is thecontinuous isothermal nitration process.