Preparation of diphenylmethane_Kain Industrial Additive

Background and overview[1][2] Diphenylmethane, commonly known as artificial geranium oil. The reaction process of industrial catalytic synthesis of diphenylmethane mainly uses liquid acid or Lewis acid as catalyst, such as sulfuric acid, hydrofluoric acid, aluminum trichloride or zinc chloride, etc. However, the use of these catalysts has complicated operations and low selectivity. , corrosiveness, toxicity…