Process for producing phenols

Details Process for producing phenols Process for producing phenols

C - Chemistry, Metallurgy

07

C

260/622.8

C07C 39/04 (2006.01) C07C 39/06 (2006.01) C07C 45/34 (2006.01)

Patent

CA 1328470

ABSTRACT OF THE DISCLOSURE A process for producing a phenol from benzene includes the steps of: (a) partially hydrogenating a benzene, followed by separating the reaction mixture into respective components of a cyclohexene, a cyclohexane and a benzene; (b) oxidizing or hydrating the separated cyclohexene into oxygen-containing compounds of a cyclohexane; (c) dehydrogenating the oxygen-containing compounds of a cyclohexane into a phenol; (d) dehydrogenating the cyclohexane separated in step (a) to convert the cyclohexane into a benzene; and (e) returning a part or all of hydrogen formed in steps (c) and (d) back to step (a). The process is economically advantageous, since by-product hydrogen is recycled and used as a reactant.

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