A new method of separating and refining β-methylnaphthalene from wash oil

摘要

This paper introduces the current technology of separating and refining β-methylnaphthalene from wash oil. On this basis, I propose a new production method of β-methylnaphthalene after many experiments. Industrial methylnaphthalene is washed twice with sulfuric acid and is distilled once. The content of β-methylnaphthalene is higher than 96%. The yield is 60%, which is higher than current domestic production levels.