KEGGIN-TYPE HETEROPOLYOXOMETALLATE ANION SALT AND PREPARATION METHOD OF EPOXY COMPOUND

摘要

PROBLEM TO BE SOLVED: To provide a Keggin-type heteropolyoxometallate anion salt which essentially comprises a Keggin-type heteropolyoxometallate anion of formula (1) and is suitably used as a catalyst for preparing an epoxy compound.;SOLUTION: The Keggin-type heteropolyoxometallate anion salt essentially comprises the Keggin-type heteropolyoxometallate anion of formula (1): [XM₁₀(H₂O)_mO_36-m]^q- (wherein X is a silicon or phosphorus atom; Ms are identical to or different from each other and are each a molybdenum or tungsten atom; m is an integer of 1-4; and q is a positive number).;COPYRIGHT: (C)2004,JPO&NCIPI