Title:
FLUID BED CATALYST FOR AMMOXIDATION OF PROPYLENE TO ACRYLONITRILE
Document Type and Number:
WIPO Patent Application WO/2001/014057
Kind Code:
A1
Abstract:
The present invention relates to a novel fluid bed catalyst for ammoxidation of propylene to acrylonitrile, the bed catalyst comprises silica support and a composite which has a formula in its atom ratio as follows: A¿a?B¿b?C¿c?Ge¿d?Na¿e?Fe¿f?Bi¿g?Mo¿h?O¿x? where A is at least an element selected from Li, K, Rb, Cs, Sm, In or Tl; B is at least two elements selected from P, Sb, Cr, W, Pr, Ce, As, B, Te, Ga, Al, Nb, Tb, La or V; C is selected from Ni, Co, Sr, Mn, Mg, Ca, Zn, Cd or Cu or mixtures thereof; a is in the range of 0.01-1.5; b is in the range of 0.01-3.0; c is in the range of 0.1-12.0; preferably 2-10; d is in the range of 0.01-2.0; preferably 0.01-1.0; e is in the range of 0.01-0.7; preferably 0.05-0.5; f is in the range of 0.1-8; preferably 1.0-3.0; g is in the range of 0.01-6; preferably 0.1-2.0; h is in the range of 12-14.5; x is total number of oxygen atoms required to balance the valence state of the other elements present in the said composite. The content of silica support is in the range of 30-70 wt.% on the basis of the total weight of the said catalyst. The said catalyst may be operated at higher reaction pressure and higher space velocities (WWH), at the same time it can maintain high single pass yields of acrylonitrile.
Inventors:
WU LIANGHUA (CN)
WANG GUOJUN (CN)
CHEN XIN (CN)
WANG GUOJUN (CN)
CHEN XIN (CN)
Application Number:
PCT/CN2000/000167
Publication Date:
March 01, 2001
Filing Date:
June 21, 2000
Export Citation:
Assignee:
CHINA PETROCHEMICAL CORP (CN)
WU LIANGHUA (CN)
WANG GUOJUN (CN)
CHEN XIN (CN)
WU LIANGHUA (CN)
WANG GUOJUN (CN)
CHEN XIN (CN)
International Classes:
B01J23/88; B01J23/835; B01J23/887; B01J27/199; C07B61/00; C07C253/26; C07C255/08; (IPC1-7): B01J23/881; B01J23/834
Foreign References:
| JPH0827089A | 1996-01-30 | |||
| CN1053197A | 1991-07-24 | |||
| CN1172689A | 1998-02-11 | |||
| US5235088A | 1993-08-10 | |||
| US4190556A | 1980-02-26 |
Attorney, Agent or Firm:
LUNG TIN INTERNATIONAL PATENT & TRADEMARK AGENT LTD. (Tower B Grand place, No. 5 Huizhong Roa, Chaoyang District Beijing 1, CN)
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