Fluidized bed catalyst for producing acrylonitrile and...

Details Fluidized bed catalyst for producing acrylonitrile and... Fluidized bed catalyst for producing acrylonitrile and...

2011-03-08

2011-03-08

Saeed, Kamal A (Department: 1626)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

C502S242000, C502S243000, C502S249000, C502S251000, C502S255000, C558S462000

Reexamination Certificate

active

07902112

ABSTRACT:
A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula:in-line-formulae description="In-line Formulae" end="lead"?MoaBibFecWdNieMgfAgBhCiDjEkFlGmOn(SiO2)pin-line-formulae description="In-line Formulae" end="tail"?In the formula, A represents Ce and La, B represents Ca, Sr, Ba, Mn, Co, Cu, Zn and Cd, C represents Y, Pr, Nd, Sm, Al, Cr, Ga and In, D represents Ti, Zr, V, Nb, Ta, Ge, Sn, Pb and Sb, E represents Ru, Rh, Pd, Re, Os, Ir, Pt and Ag, F represents P, B and Te, G represents Li, Na, K, Rb, Cs and Tl, SiO2represents silica, when a=10, b=0.1 to 1.5, c=0.5 to 3, d=0.1 to 1.5, e=0.1 to 8, f=0.1 to 5, g=0.1 to 1.5, h=0 to 8, i=0 to 3, j=0 to 3, k=0 to 3, l=0 to 3, m=0.01 to 2, p=10 to 200 and n is the atomic ratio of oxygen required to satisfy the valence of each of the elements excluding silicon, and (a×2+d×2)/(b×3+c×3+e×2+f×2+g×3+h×2+i×3+m×1)=0.90 to 1.00).

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