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US 12,569,835 B2Granted
Ammoxidation catalyst for propylene, manufacturing method of the same catalyst, ammoxidation method using the same catalyst
AssigneeLG Chem, Ltd.
InventorsKyungyeon Kang, Ji Yeon Kim, Jun Seon Choi
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Abstract
The present disclosure relates to an ammoxidation catalyst for propylene, a manufacturing method of the same, and an ammoxidation method of propylene using the same. Specifically, in one embodiment of the present disclosure, there is provided a catalyst having a structure in which a metal oxide is supported on a silica support having a narrow particle size distribution, and excellent wear resistance.
Claims18
An ammoxidation catalyst for propylene comprising:
- a silica support containing a pore having a diameter of 2 to 15 nm and an apparent density of 0.25 to 1.0 g/cc;
- and
- a metal oxide represented by the following Chemical Formula 1 supported on the silica support,
- Mo12BiaFebAcBdCeOx;
- Chemical Formula 1:
- wherein in Chemical Formula 1,
- A is at least one element of Ni, Mn, Co, Zn, Mg, Ca and Ba,
- B is at least one element of Li, Na, K, Rb and Cs,
- C is at least one element of Cr, W, B, Al, Ca and V,
- a to e and x are each a fraction of an atom or atomic group, a is 0.1 to 5, b is 0.1 to 5, c is 0.01 to 10, d is 0.01 to 2, e is 0 to 10, and x is 24 to 48.
7 more elements
A manufacturing method of an ammoxidation catalyst for propylene comprising the steps of:
- preparing a first precursor aqueous solution containing a Mo precursor;
- preparing a second precursor aqueous solution containing a Bi precursor, a Fe precursor, an A precursor, and a B precursor, wherein the A precursor comprises at least one of Ni, Mn, Co, Zn, Mg, Ca, and Ba, and the B precursor comprises at least one of Li, Na, K, Rb and Cs;
- supporting a mixture of the first and second precursor aqueous solutions on a silica support containing a pore having a diameter of 2 to 15 nm and an apparent density of 0.25 to 1.0 g/cc;
- drying the silica support on which the mixture of the first and second precursor aqueous solutions is supported;
- and
- calcining the dried material.
3 more elements
Dependencies are inferred from the claim text.