Kao Corporation

Toru Sakamoto

Hideaki Ueoka

Nobuhiro Tatsumi

Masanori Namba

Osamu Tabata

Taku Mimura

Shoji Hasegawa

Hideaki c/o Kao Corporation Research Lab Ueoka

The present invention provides a method of preparing the copper-containing hydrogenation catalyst having high activity by liquid phase reduction without decreasing purity of the solvent and a method for efficiently producing an alcohol. The present invention provides the method of preparing the copper-containing hydrogenation catalyst, including reducing a molded precursor of the copper-containing hydrogenation catalyst by supplying hydrogen gas or a mixture of hydrogen gas with an inert gas at a temperature of 50 to 150&#xb0; C. in the presence of a solvent to obtain the copper-containing hydrogenation catalyst, wherein the reduction is conducted at an average reduction velocity of the copper-containing hydrogenation catalyst of not more than 3.0% by weight/hour. The present invention also provides the method of producing an alcohol, including preparing the copper-containing hydrogenation catalyst by the method of preparation, and subjecting a carboxylic acid or a carboxylic acid ester to catalytic reduction with hydrogen in the presence of the prepared copper-containing hydrogenation catalyst.

Method for preparing catalyst

The present invention provides the method for preparing a catalyst including the following steps 1 and 2, and the method for producing an alcohol including preparing a catalyst by the method and subjecting a carboxylic acid or a carboxylic acid ester to catalytic reduction with hydrogen in the presence of the prepared catalyst:

The invention relates to a process for producing a fatty alcohol and glycerin by hydrogenation reaction of fats and oils in the presence of a catalyst, wherein the reaction is carried out in the coexistence of an organic solvent.

Process for producing glycerin and fatty alcohol via hydrogenation

The invention relates to a process for producing an alcohol from fats and oils, including:

Method for producing alcohol

The invention provides a process for producing an alcohol, including the step of hydrogenating a glyceride in the presence of a catalyst, adding water, or a process for producing an alcohol, including the step of hydrogenating a glyceride in the presence of a catalyst and in the presence of from 0.5 or more of water per mole of the starting glyceride.

Process for producing alcohol

The invention relates to a process for producing a fatty alcohol, including hydrogenating a fatty acid ester to prepare a crude fatty alcohol product, and distilling and refining the resulting crude fatty alcohol to prepare a fatty alcohol, further including recovering a part or the whole of distillation residues obtained in the distillation step and removing an alkali component from the distillation residues, adding the treated distillation residues to hydrogenation step or to a starting fatty acid ester feed.

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Wakayama, Japan

Toru Sakamoto