Heteropolyacid catalyst and method for producing the same

申请公布号：US7094727(B2)

申请号：US20040024809

申请日期：2004.12.30

申请公布日期：2006.08.22

申请人：

LG CHEM, LTD.

发明人：HWANG GYO-HYUN;LEE WON-HO;KIL MIN-HO

分类号：B01J23/89;B01J27/14;B01J27/185;B01J27/19;B01J27/195;B01J27/199;B01J27/24;B01J37/00;B01J37/02;C07C51/25

主分类号：B01J23/89

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.

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