| 摘要 |
The invention concerns a process for the catalytic trans-halogenation of a poly-iodo-benzene, wherein said poly-iodo-benzene is made to react with benzene and with oxygen, in the presence of a zeolite of the X type or of the Y type, exchanged with an alkali metal, with thallium or with a rare earth and anyway present in a form different from the acidic form.
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