Sakai Chemical Industry Co., Ltd.

Panasonic Corporation

Kuraray Co., Ltd.

Akio Nakashima

Noboru Taniguchi

Tomohiro Kuroha

Kenichi Tokuhiro

Keita Kobayashi

Shuzo Tokumitsu

Shinji Nakahara

Tomoaki Tsuji

Keiichi Tabata

Toshihiro Sugaya

A copper-based catalyst precursor capable of achieving a high conversion ratio and high selectivity in the isomerization reaction of a &#x3b2;,&#x3b3;-unsaturated alcohol portion and a method for producing the same and to provide a hydrogenation method in which the copper-based catalyst precursor is used are provided. Specifically, a copper-based catalyst precursor obtained by calcining a mixture containing copper, iron, aluminum, and calcium silicate in which an atomic ratio of iron and aluminum to copper [(Fe+Al)/Cu] is in a range of 1.71 to 2.5, an atomic ratio of aluminum to iron [Al/Fe] is in a range of 0.001 to 3.3, and calcium silicate is contained in a range of 15% by mass to 65% by mass at a temperature in a range of 500&#xb0; C. to 1,000&#xb0; C. and a hydrogenation method in which the copper-based catalyst precursor is used are provided.

Copper-based catalyst precursor, method for manufacturing same, and hydrogenation method

A titanium oxide photocatalyst that is capable of improving a decomposition rate, and a method for producing the same are provided. The titanium oxide photocatalyst of the present invention is a titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, wherein a content of the fluorine is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.

Titanium oxide photocatalyst and method for producing the same

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Osaka, Japan

Akio Nakashima