[12] Patent
[11] Patent No.:GC0009444  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/142075
Date of the Decision to Grant the Patent:23/Dec/2018

[21] Application No.:GC 2012-20529

[22] Filing Date:15/2/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.
JP
18/2/2011
2011-033777

[72] Inventors:1- Eri TATENO،2- Masatoshi KANETA،3- Toshihiko FUKUZONO،4- Haruhiko WATANABE

[73] Owner: Asahi Kasei Kabushiki Kaisha, 1-105 Kanda Jinbocho, Chiyoda-ku, Tokyo 101-8101, Japan

[74] Agent: Kadasa Law Firm

  

 

  

[51]IPC:
Int. Cl.: B01J 19/24; C07C 253/24 (2006.01)

[56] Cited Documents:

-JP 2009-262146 A. (Asahi Kasei Chemicals Corp.),12 November 2009
-JP 2000-249476 A. (Nippon Steel Corp.),14 September 2000
-JP 2001-133157 A. (Meidensha Corp.),18 May 2001
-JP 59-119176 A. (British Nuclear Fuels Ltd.),10 July 1984
 
Examiner: Eng. Abdallah I. AlKhatib

[54] CALCINATION APPARATUS, PROCESS FOR PRODUCING OXIDE CATALYST, AND PROCESS FOR PRODUCING UNSATURATED ACID OR UNSATURATED NITRILE
[57] Abstract: Disclosed is a calcination apparatus, including: a calcination tube having open ends at both terminals; a pair of hoods, each hood covering each open end of the calcination tube; and a pair of rings, each ring sealing a gap between the calcination tube and the hood, wherein the rings are directly or indirectly fixed on an outer surface of the calcination tube; a groove is provided along a circumferential direction of the ring at a contact surface side between the ring and the hood; a sealed chamber surrounded by the hood and the groove is formed; and both the calcination tube and the rings rotate in a circumferential direction of the calcination tube while keeping the hood in contact with both sides of the groove.
No. of claims: 13     No. of figures: 9


 

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