Study of purification of phenanthrene from phenanthrene waste

Isolation and purification of phenanthrene from phenanthrene waste has been studied by fractionation and acid wash with sulphuric acid. Experimental results showed that the purity of phenanthrene was increased from 50.29% to 86.06%. Commercial grade phenanthrene was obtained by purification, the melting point of the product was 96~103°C and the yield of phenanthrene was 26.58%. Keywords: Phenanthrene waste, phenanthrene, purification.