Study on Separation and Purification of ï¡-methylnaphthalene from Wash Oil

Abstract

This paper introduces the current technology of separation and purification of -methylnaphthalene from wash oil. On this basis, we develop a new production method of -methylnaphthalene after many experiments. Industrial methylnaphthalene is washed twice with sulfuric acid and is distilled twice. The content of -methylnaphthalene is higher than 95%.The yield is 64%, which is higher than current domestic production levels.