摘要 |
The heavy by-products of the process for the production of cumene by the catalytic alkylation of benzene with propylene, are treated in an atmosphere of hydrogen on catalysts constituted by a natural silico-aluminate having a silica-alumina ratio greater than or equal to 3/1, pre-treated with a mineral acid, on which a metal of the eighth group is deposited to give a reaction product consisting essentially of benzene and cumene. |