プロピレンのアンモ酸化方法

Title:

プロピレンのアンモ酸化方法

Document Type and Number:

Japanese Patent JP4447374

Kind Code:

B2

Abstract:

To provide a method for ammoxidation by which an oxide catalyst is simply and effectively activated and the yield of the objective product is maintained at a high level over a long period.

The method for the ammoxidation is carried out as follows. A feed gas volume-increasing step for increasing the initial linear velocity of the feed gas in a fluidized bed reactor so as to provide 1.05-1.40 times that during the steady state at a frequency of at least one time or more for 200 h is provided for a time within the range of 0.5 min to 5 h when an organic compound is subjected to the ammoxidation in the presence of the specific compound oxide catalyst and a specified activator in the fluidized bed reactor.

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Inventors:

Hirokazu Watanabe
Watanabe Seiyo
Kenichi Miyaki
Masanori Yamaguchi

Application Number:

JP2004145245A

Publication Date:

April 07, 2010

Filing Date:

May 14, 2004

Export Citation:

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Assignee:

Dianitrix Co., Ltd.

International Classes:

B01J27/192; B01J27/28; C07C253/24; B01J33/00; B01J38/04; C07B61/00; C07C255/08

Domestic Patent References:

JP2001187771A
JP11033400A
JP59076543A
JP59076544A
JP2004105951A

Foreign References:

WO1997033863A1

Attorney, Agent or Firm:

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama

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