Toluenediamine (a.k.a. TDA) (also known as TDA) refers to a group of six isomers of an aromatic diamine. They are prepared from toluene or benzene, by electrophilic aromatic nitration, followed by reduction of the introduced nitro group to an amino group. The most importants commercially are the 2,4 and 2,6-isomers, which are chemicals intermediates mainly employed in the production of toluenediisocyanate (TDI), one of the raw materials for polyurethanes manufacture. With the exception of the 3,5-isomer, which is liquid at room temperature, all the other TDAs appear as white crystalline solids. They are all readily soluble in hot water and common organic solvents such as alcohols, ketones, and ethers.
Intratec offers professional, easy-to-understand reports examining Toluenediamine production. Each study describes an industrial plant, including main process units and site infrastructure, and presents an independent analysis of capital and operating costs. All reports are based on the most recent economic data available (2019/20).