CATALYST AND FORMALDEHYDE OXIDATION PROCESS Russian patent published in 2005 - IPC

FIELD: industrial organic synthesis and catalysts.

SUBSTANCE: catalyst is constituted by polyoxometallate of general formula A_x[XM'_12-nM"_nO_k]^y-, where X represents B, Si, or P; M' = Mo or W; M" = Ce or Co; n=1-6, k=39-41, A cation selected from series: H⁺, Na⁺, K⁺, or mixture thereof, y charge of polyanion, and x number of cations. Invention also discloses a process of oxidation of formaldehyde with oxygen and/or air at atmospheric pressure in presence of polyoxometallate catalyst and initiator in aqueous solution at temperature not exceeding 100°C.

EFFECT: increased selectivity of catalyst regarding formic acid and thereby increased conversion of formaldehyde, reduced process expenses, and simplified oxidation process resulting in improved environmental condition.

9 cl, 1 dwg, 3 tbl, 23 ex