Kao Corporation

Jun Kono

Tetsuaki Fukushima

Tsubasa Arai

Yasuyuki Hattori

Yasuki Ohtawa

Yoshiharu Ataka

Shuji Tagata

Takeshi Tomifuji

Yoshinori Mitsuda

Masamitsu Horio

Ryo Nishimura

Akira Sakaguchi

Kunio Matsui

Hiroshi Nagumo

Toshihiro Tanaka

Takahiro Asada

Kazutaka Shiratsuchi

Ikuo Sugano

Satoshi Kodama

Tomokatsu Kusumi

Tatsuhiro Imanaka

Hiroyuki Tamaura

Provided is a method for producing aldehydes that brings an excellent alcohol conversion and aldehyde selectivity while suppressing generation of aldol condensates, etc. The method for producing aldehydes includes a step of dehydrogenating primary alcohol in the presence of a catalyst composition. The catalyst composition is a first catalyst composition obtained by adding a potassium salt of a weak acid to a dehydrogenation catalyst containing copper as an active species.

Method for producing aldehyde

Provided is a method for producing an aldehyde that provides a target aldehyde at a high conversion rate over an extended period of time. It is a method for producing an aldehyde comprising bringing a raw material gas containing a primary alcohol having 4 to 18 carbon atoms and water into contact with a dehydrogenation catalyst containing copper and iron so as to dehydrogenate the alcohol contained in the raw material gas, thereby obtaining an aldehyde, wherein the raw material gas has a water partial pressure of 0.2 kPa to 99 kPa.

Provided is an aldehyde production method that can provide target aldehydes with excellent aldehyde selectivity and a high conversion for a long period of time. The method includes bringing a mixed gas containing a vaporized primary alcohol and an inert gas into contact with a film-type dehydrogenation catalyst so as to dehydrogenate the primary alcohol in the mixed gas, thereby obtaining an aldehyde. The partial pressure of the primary alcohol in the mixed gas is 50 kPa or lower, and the film-type dehydrogenation catalyst is formed by providing a thin film catalyst layer on a support.

Provided is a process for preparing a sulfuric acid amine salt (I) represented by the formula (I), which is a neutralization compound between a sulfated compound having a long chain alkyl or alkenyl group and an amine having a long chain alkyl or alkenyl group, useful as softener. 

Sulfuric acid amine salt, sulfonic acid amine salt, production thereof and softener composition

The present invention provides a method of obtaining highly pure phytosterols practically and efficiently from crude phytosterol compositions derived from vegetable fats and oils. That is, the present invention provides a method of saponifying fatty esters contained in crude phytosterol compositions with an alkali in a mixed solvent of an lower alcohol and water, as well as a process for producing phytosterols, which comprises, after this saponifying method, cooling the reaction solution to precipitate crystals of phytosterols, and separating the obtained crystals.

Process for producing phytosterols by saponification in an alcohol/water solvent

The present invention provides a process for producing a highly pure phytosterol, at high yield in particular, by an easy treatment from a crude fatty acid ester derived from a vegetable fat and/or oil. That is, the present invention provides a process for producing phytosterol, which comprises (A) bringing a crude fatty acid product derived from a vegetable fat and/or oil including phytosterol into contact with a mixed solvent of an organic solvent and water to crystallize the phytosterol and separating the crystals from the mixed solvent; or (B) mixing a crude fatty acid ester derived from a vegetable fat and/or oil including the phytosterol and a fatty acid ester with a lower alcohol, allowing the mixture to stand at a temperature of 1 to 40&deg; C. to precipitate crystals including the fatty acid ester and separating the crystals to take the lower alcohol solution including the phytosterol.

Process for purification of phytosterol from fatty acids and their esters

Alkoxylation catalyst, process for the preparation of the catalyst and

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Wakayama, Japan

Jun Kono