Title:
触媒の保存方法
Document Type and Number:
Japanese Patent JP4536656
Kind Code:
B2
Abstract:
The method for preserving a catalyst of the present invention is characterized in that, in a process for continuously producing an objective product by a vapor phase oxidation reaction using a phosphorus-molybdenum-vanadium catalyst containing phosphorus, molybdenum and vanadium, the phosphorus-molybdenum-vanadium catalyst retained in a reactor is maintained under a condition of a water content of 30 mg or less per 1 g of catalyst dry weight, before the start of the reaction or during the stop of the reaction. By this, deterioration of the catalyst retained in the reactor can be simply prevented.
Inventors:
Yoshiyuki Taniguchi
Toru Kuroda
Takezawa Hideyasu
Yasuhiro Kamine
Toru Kuroda
Takezawa Hideyasu
Yasuhiro Kamine
Application Number:
JP2005507984A
Publication Date:
September 01, 2010
Filing Date:
January 09, 2004
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
B01J33/00; B01J27/198; B01J27/199; C07C51/235; C07C57/055; B01J35/00; C07B61/00
Domestic Patent References:
| JP2003010695A | 2003-01-14 | |||
| JP2002316048A | 2002-10-29 | |||
| JP2003238477A | 2003-08-27 | |||
| JP2001310123A | 2001-11-06 | |||
| JPS594445A | 1984-01-11 |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata