| 摘要 |
Provided is a novel heteropolyacid catalyst useful for partial oxidation of methacrolein (MACR) to methacrylic acid (MAA), as represented by the following formula 1: <?in-line-formulae description="In-line Formulae" end="lead"?>PMo<SUB>a</SUB>A<SUB>b</SUB>B<SUB>c</SUB>C<SUB>d</SUB>D<SUB>e</SUB>E<SUB>f</SUB>O<SUB>g</SUB> (1)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein A, B, C, D, E, a, b, c, d, e, f, and g are as defined in the specification. Provided is also a method for producing the heteropolyacid catalyst. The heteropolyacid catalyst produced by the method exhibits excellent catalyst activity in terms of conversion rate, selectivity, and yield. |
