Process for producing dihydric phenol
AssigneeUbe Industries, Ltd.
InventorsTakashi Atoguchi, Shigeru Yao, Tomonori Kanougi
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Abstract
There are disclosed a process for producing a dihydric phenol which comprises oxidizing a monohydric phenol by a peroxide compound in the presence of a β-zeolite, a ketone and a phosphoric acid, and a process for producing a dihydric phenol which comprises oxidizing a monohydric phenol in the presence of a β-zeolite, a ketone and a phosphoric acid, by feeding a monohydric phenol, hydrogen peroxide, a ketone and a phosphoric acid into a reactor in which a β-zeolite is charged, to oxidize the monohydric phenol into a dihydric phenol, and delivering the resultant reaction mixture from the reactor.
Claims31
A process for producing a dihydric phenol which comprises oxidizing a monohydric phenol by a peroxide compound in the presence of a β-zeolite, a ketone and a phosphoric acid.
A process for producing a dihydric phenol which comprises oxidizing a monohydric phenol in the presence of a β-zeolite, a ketone and a phosphoric acid, by feeding a monohydric phenol, hydrogen peroxide, a ketone and a phosphoric acid into a reactor in which a β-zeolite is charged, to oxidize the monohydric phenol into a dihydric phenol, and delivering the resultant reaction mixture from the reactor.
Dependencies are inferred from the claim text.