Patent ID: 6613714
Filing Date: 2003-09-02
Classification: B01J,C08G

Abstract:
A multimetal cyanide complex comprising the formulaM1a[M2(CN)bLc]*dH2O*eT wherein M1 is at least one metal ion selected from the group consisting of Zn2+, Fe2+, Co3+, Ni2+, Mn2+, Co2+, Sn2+, Pb2+, Fe3+, Mo4+, Mo6+, Al3+, V5+, Sr2+, W4+, W6+, Cu2+, Cr2+, Cd2+, Cr3+, Cd2+, Hg2+, Pd2+, Pt2+, V2+, Mg2+, Ca2+, Ba2+, and mixtures thereof; M2 is at least one metal ion selected from the group consisting of Fe2+, Fe3+, Co3+, Cr3+, Mn2+, Mn3+, Rh3+, Ru2+, Ru3+, V4+, V5+, Co2+, Ir3+, Cr2+, and mixtures thereof; a, b, and c are integers and are selected so that the complex is electrically neutral and c is greater than or equal to zero; d is an integer or a fraction greater than zero; e is an integer or fraction greater than zero; L is an anion selected from the group consisting of halide, hydroxide, sulfate, carbonate, cyanide, cyanate, thiocyanate, isocyanate, carboxylate, formate, acetate, propionate, oxalate, nitrate, and mixtures thereof; T comprises a surface-active substance; and in which more than 30% by weight of primary particles of the multimetal cyanide complex have a platelet-like shape meaning that the length and width of the primary particles is at least three times the thickness of the primary particles.