Nippon Shokubai Co., Ltd.

Yukihide Hashimoto

Hideaki Tsuneki

Masaru Kirishiki

Kiyoshi Masuda

Yoshitaka Arita

Yoshiaki Urano

Tomoharu Oku

Hisakazu Shindou

Masunori Kitao

Fumiaki Morishita

Kouichi Hirota

This invention relates to a method for the production of a halogen-containing phthalocyaline compound by the cyclization of phthalonitrile compounds either singly or in combination with a metal compound, characterized in effecting the cyclization in an organic compound having a hydroxyl group and/or a carboxylic acid in an amount in the range of 0.01-10 mass parts per one mass part of the phthalonitrile compounds while continuing the introduction of an inert gas. This method, by using a solvent capable of serving as a specific oxygen source destined to participate in the reaction of complexing a metal compound introduced into a phthalocyanine dye, permits the production of a phthalocyanine compound inexpensively in a high yield.

Method for production of halogen-containing phthalocyanine compound

In producing alkanolamines by use of a microporous material as a catalyst, the difficulty in industrially performing the production because of the short lifetime of the catalyst is resolved. A process of regenerating the catalyst by removing an organic substance deposited on the catalyst by means of decomposing and/or extracting the substance is introduced, and thereby steady production is carried out substantially over the long term by switching the reaction and the regenerating processes.

Method of producing alkanolamines and apparatus for producing same

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Kobe, Japan

Yukihide Hashimoto