Crystalline aluminosilicate zeolitic composition: UZM-8

A process for preparing a microporous crystalline zeolite having a layered framework of at least AlO2 and SiO2 tetrahedral units and a composition on an as-synthesized and anhydrous basis expressed by an empirical formula of:

• Mmn+Rrp+Al1-xExSiyOz
• where M is at least one exchangeable cation selected from the group consisting of alkali and alkaline earth metals, “m” is the mole ratio of M to (Al+E) and varies from 0 to about 2.0, R is at least one organoammonium cation selected from the group consisting of quaternary ammonium cations, diquaternary ammonium cations, protonated amines, protonated diamines, protonated alkanoamines and quaternized alkanolammonium cations, “r” is the mole ratio of R to (Al+E) and has a value of about 0.05 to about 5.0, “n” is the weighted average valence of M and has a value of about 1 to about 2, “p” is the weighted average valence of R and has a value of about 1 to about 2, E is an element selected from the group consisting of gallium, iron, boron, chromium, indium and mixtures thereof, “x” is the mole fraction of E and has a value from 0 to about 1.0, “y” is the mole ratio of Si to (Al+E) and varies from about 6.5 to about 35;
• and “z” is the mole ratio of O to (Al+E) and has a value determined by the equation:
• z=(m·n+r·p+3+4·y)/2
• and is characterized in that it has the x-ray diffraction pattern having at least the d spacings and intensities set forth in Table A:
• TABLE A 2-θ d (Å) I/I0 % 6.40-6.90 13.80-12.80 w-s 6.95-7.42 12.70-11.90 m-s 8.33-9.11 10.60-9.70 w-vs 19.62-20.49 4.52-4.33 m-vs 21.93-22.84 4.05-3.89 m-vs 24.71-25.35 3.60-3.51 w-m 25.73-26.35 3.46-3.38 m-vs
• the process comprising forming a reaction mixture containing reactive sources of M, R, Al, Si and optionally E, and reacting the reaction mixture at reaction conditions which include a temperature of about 85° C. to about 225° C., for a period of time of about 1 day to about 28 days the reaction mixture having a composition expressed in terms of mole ratios of the oxides of:
• aM2/nO:bR2/nO:1-cAl2O3:cE2O3:dSiO2:eH2O
• where “a” has a value of 0 to about 25, “b” has a value of about 1.5 to about 80, “c” has a value of 0 to about 1.0, “d” has a value of about 10 to about 100, “e” has a value of about 100 to about 15000.

A hydrocarbon conversion process comprising contacting a hydrocarbon with a catalytic composite at hydrocarbon conversion conditions to give a converted product, the catalytic composite comprising a microporous crystalline zeolite having a layered framework of at least AlO2 and SiO2 tetrahedral units and a composition on an as-synthesized and anhydrous basis expressed by an empirical formula of:

• Mmn+Rrp+Al1-xExSiyOz
• where M is at least one exchangeable cation selected from the group consisting of alkali and alkaline earth metals, “m” is the mole ratio of M to (Al+E) and varies from 0 to about 2.0, R is at least one organoammonium cation selected from the group consisting of quaternary ammonium cations, diquaternary ammonium cations, protonated amines, protonated diamines, protonated alkanoamines and quaternized alkanolammoniumcations “r” is the mole ratio of R to (Al+E) and has a value of about 0.05 to about 5.0, “n” is the weighted average valence of M and has a value of about 1 to about 2, “p” is the weighted average valence of R and has a value of about 1 to about 2, E is an element selected from the group consisting of gallium, iron, boron, chromium, indium and mixtures thereof, “x” is the mole fraction of E and has a value from 0 to about 1.0, “y” is the mole ratio of Si to (Al+E) and varies from about 6.5 to about 35 and “z” is the mole ratio of O to (Al+E) and has a value determined by the equation:
• z=(m·n+r·p+3+4·y)/2
• and is characterized in that it has the x-ray diffraction pattern having at least the d spacings and intensities set forth in Table A:
• TABLE A 2-θ d (Å) I/I0 % 6.40-6.90 13.80-12.80 w-s 6.95-7.42 12.70-11.90 m-s 8.33-9.11 10.60-9.70 w-vs 19.62-20.49 4.52-4.33 m-vs 21.93-22.84 4.05-3.89 m-vs 24.71-25.35 3.60-3.51 w-m 25.73-26.35 3.46-3.38 m-vs