SYNTHESIS OF MOLECULAR SIEVING METALLOSILICATES USING HETEROPOLYMETALLATES

摘要

ABSTRACT OF THE DISCLOSUREA method for preparing a molecular sieving metallosilicate isdisclosed which comprises(A) providing a mixture comprising: water; an oxide of siliconsource; a mineralizing agent and/or synthesis directing agent; and aheteropolymetallate of the formulaAa LlMmJzOy ? dH2OwhereinA is an ion selected from the group consisting of hydrogen;one or more of the Group I-A to VI-A or Group I-B to VI-B metals; one ormore of the rare earth metals; ammonium, alkyl ammonium, alkyl phos-phonium or alkyl arsonium; or a mixture of two or more thereof;M is Zn, Ga, Ge, Ti, Cr, Mn, Fe, Co, B, Ni, Rh, Zr or amixture of two or more thereof;L is P, As, Si, Al, H or a mixture of two or more thereof;J is Mo, W, V, Nb or a mixture of two or more thereof;a is a number which when multiplied by the charge of Awill result in balancing the charge on the complex within the brackets;l is a number ranging from zero to about 20;m is a number ranging from zero to about 20;z is a number ranging from about 1 to about 50;y is a number ranging from about 7 to about 150;d is a number ranging from about zero to about 150; and(B) maintaining said mixture at a temperature of about 80°C toabout 300°C for an effective period of to form said molecular sievingmetallosilicate.