Showa Denko K.k.

Kenichi Abe

Hiroshi Uchida

Wataru Oguchi

Yoshiaki Obana

Kenichi Sano

Toshiro Suzuki

Kenji Yamada

Hiroko Yoshikawa

A catalyst for use in producing acetic acid, comprising as essential components (a) palladium and (b) at least one compound selected from heteropolyacids and/or salts thereof, wherein (c) a vanadium element and/or molybdenum element is contained in a specific proportion. Acetic acid is produced from ethylene and oxygen by a gas phase single-stage reaction using the catalyst.

Catalyst for use in producing acetic acid, process for producing the catalyst, and process for producing acetic acid using the catalyst

A process for producing acetic acid comprising reacting ethylene and oxygen in the presence of a catalyst comprising metallic Pd and at least one member selected from the group consisting of heteropoly-acids and their salts, or in the presence of a catalyst comprising metallic Pd, at least one member selected from the group consisting of heteropoly-acids and their salts and at least one member selected from the group consisting of metallic elements of Groups 11, 14, 15 and 16 of the Long-Form Periodic Table.

Process for producing acetic acid

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Oita, Japan

Kenichi Abe