Patent ID: 6376645
Filing Date: 2002-04-23
Classification: B01J,C08G

Abstract:
A catalyst represented by the general structure:Mb[M1(CN)6]c[M2(NO2)6]d.zL.aH2O.nM3xAy, wherein M and M3 are metal ions that form an insoluble precipitate with the M1(CN)6 and M2(NO2)6 ions, and which have at least one water soluble salt;M1 and M2 are trivalent transition metal ions; L represents an organic complexing agent selected from the group consisting of alcohols, aldehydes, ketones, ethers, amides, nitrites, sulfides and compounds having a S&boxH;O group; A represents an anion that forms a water-soluble salt with the M3 ion; b, c and d are numbers that reflect an electrostatically neutral complex, with the ratio of c:d being from about 50:50 to about 99:1; and z, n and a are positive numbers indicating the relative quantities of the complexing agent, water molecules and M3xAy, respectively.