| 摘要 |
Benzene (1 mole) and n-butene (0.2 to 1.2 mole) are mixed together with a liquid catalyst comprising 0.5 mole HCl and 2 moles of an aromatic hydrocarbon having 1 mole of AlCl3 bonded thereto, and reacted at a temperature of 80-150 DEG C for a time T of 0.01 - 0.7 hour, and at a catalyst concentration of not more than 0.9 wt%, usually 0.01 - 0.9 wt%,and the concentration C satisfying the formula: <MATH> The reaction can be batchwise or continuous. The sec-butylbenzene product is separated and recovered; by-product di- and tri-sec-butylbenzene may be transalkylated or recycled; unreacted benzene may be recycled; the spent catalyst can be recovered and recycled. By-product isobutylbenzene is kept to no more than 1 wt%. The sec-butylbenzene is useful in the production of phenol, e.g. by oxidation. |
