[12] Patent
[11] Patent No.:GC0011352  
[45] Date of Publishing the Grant of the Patent: 31/Jul /2020                72/2020  
Number of the Decision to Grant the Patent:2020/170248
Date of the Decision to Grant the Patent:02/Jul/2020

[21] Application No.:GC 2015-29143

[22] Filing Date:30/3/2015

[30] Priority:

[33] State [32] Priority date [31] Priority No.
JP
31/3/2014
2014-074011

[72] Inventors:1- ISHII, Yusuke،2- OKADA, Kazushi

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

[74] Agent: Kadasa Law Firm

  

 

  

[51]IPC:
Int. Cl.: B01J 23/30, 35/02, 37/04, 37/08; C07C 253/24, 255/03 (2006.01)

[56] Cited Documents:

-JP 200655681 A (Asahi Kasei Chemicals Corp.) 2 March 2006
-JP 2013198902 A (Saudi Basic Industries A Corp.) 3 October 2013
-JP 2011529777 A (Ineos USA L.L.C.) 15 December 2011
-US 20090198081 Al (PAPARIZOS CHRISTOS) 6 August 2009
-JP 2013169482 A (Mitsubishi Rayon Co., Ltd.) 2 September 2013
 
Examiner: Faisal Abdulla Aljardan

[54] METHOD FOR PRODUCING OXIDE CATALYST, AND METHOD FOR PRODUCING UNSATURATED NITRILE
[57] Abstract: There is provided a method for producing an oxide catalyst to be used for production of an unsaturated nitrile, the method including a step (a) of preparing an aqueous mixed liquid (A) containing Mo, V and Sb, a step (b) of mixing the aqueous mixed liquid (A), a carrier component and a Nb raw material at 20?C or more and 80?C or less to obtain an aqueous mixed liquid (B), a step (c) of drying the aqueous mixed liquid (B) to obtain a dried powder, and a step (d) of calcining the dried powder to obtain an oxide catalyst, wherein the aqueous mixed liquid (B) has a solid metal component concentration of 2.0 to 8.0% by mass.
No. of claims: 6


 

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