Catalyst for glycerin dehydration, preparation method therefor, and acrolein preparation method using catalyst
AssigneeLG Chem, Ltd.
InventorsJi Yeon Kim, Jun Seon Choi, Joo Young Cheon, Wang Rae Joe, Hye Jeong Ok, Kyung Soo Kim
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Abstract
The present invention relates to: a catalyst for glycerin dehydration; a preparation method therefor; and an acrolein preparation method using the catalyst. According to one embodiment of the present invention, the catalyst is used in glycerin dehydration so as to exhibit high catalytic activity, a high yield and high acrolein selectivity, and has a characteristic in which carbon is not readily deposited, thereby having a long lifetime compared with that of a conventional catalyst.
Claims11
A catalyst for dehydration of glycerin represented by the following Chemical Formula 1:
- ZrxAn(HyPOm)z [Chemical Formula 1]
- in Chemical Formula 1, A is one or more atoms selected from the group consisting of B, W, V, Ca, K, Mg, Sr, Ag, Ni, Zn, Fe, Sn, and Nb;
- and
- x, n, m, y, and z represent ratios of atoms or atom groups, wherein x is 0.1 to 6, n is 0.01 to 8, y is 0.1 to 10, m is 1 to 5, and z is 1 to 12.
A preparation method of the catalyst for dehydration of glycerin, including the steps of mixing one or more precursors selected from the group consisting of the precursors of B, W, V, Ca, K, Mg, Sr, Ag, Ni, Zn, Fe, Sn, and Nb, a zirconium precursor, and a phosphate compound, and precipitating a catalyst represented by Chemical Formula 1 therefrom:
- ZrxAn(HyPOm)z [Chemical Formula 1]
- in Chemical Formula 1, A is one or more atoms selected from the group consisting of B, W, V, Ca, K, Mg, Sr, Ag, Ni, Zn, Fe, Sn, and Nb;
- and
- x, n, m, y, and z represent ratios of atoms or atom groups, wherein x is 0.1 to 6, n is 0.01 to 8, y is 0.1 to 10, m is 1 to 5, and z is 1 to 12.
Dependencies are inferred from the claim text.