| 摘要 |
PROBLEM TO BE SOLVED: To recover a solvent consisting essentially of 1-phenyl-1-(ethylphenyl) ethane which has been synthesized by a conventional method from an inexpensive raw material. SOLUTION: Benzene is subjected to ethylation reaction with ethylene or polyethylbenzene in the presence of an alkylation catalyst to produce ethylbenzene and the resultant reaction product is distilled to separate recovery component fraction containing ethylbenzene fraction and polyethylbenzene fraction and residual high boiling point fraction after separating these fractions is further distilled and a fraction containing 70-99% 1-phenyl-1-(ethylphenyl) ethane is separated from high boiling point fraction to provide the objective solvent. The method enables inexpensive production of solvent consisting essentially of 1-phenyl-1-(ethylphenyl)ethane and the resultant solvent is excellent as a solvent for pressure-sensitive paper, etc. |
