High charge density metallophosphate molecular sieves

A microporous crystalline metallophosphate material having a three-dimensional framework of [M2+O4/2]2−, [EO4/2]− and [PO4/2]+ tetrahedral units and an empirical composition in the as synthesized form and on an anhydrous basis expressed by an empirical formula of:

• Rp+rA+mM2+xEyPOz
• where R is at least one quaternary ammonium cation selected from the group consisting of ethyltrimethylammonium (ETMA+), diethyldimethylammonium (DEDMA+), hexamethonium (HM2+), choline [Me3NCH2CH2OH]+, trimethylpropylammonium, trimethylbutylammonium, trimethylisopropylammonium, tetramethylammonium (TMA+), tetraethylammonium (TEA+), tetrapropylammonium (TPA+) and mixtures thereof, “r” is the mole ratio of R to P and has a value of about 0.1 to about 1.0, “p” is the weighted average valence of R and varies from 1 to 2, A is an alkali metal selected from the group consisting of Li+, Na+, K+, Rb+and Cs+and mixtures thereof, “m” is the mole ratio of A to P and varies from 0.1 to 1.0, M is a divalent element selected from the group of Zn, Mg, Co, Mn and mixtures thereof, “x” is the mole ratio of M to P and varies from 0.2 to about 0.9, E is a trivalent element selected from the group consisting of aluminum and gallium and mixtures thereof, “y” is the mole ratio of E to P and varies from 0.1 to about 0.8 and “z” is the mole ratio of O to P and has a value determined by the equation:
• z=(m+p·r+2·x+3·y+5)/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
• TABLE A
• 2Θ
• d(Å)
• I/I0 %
• 8.28-8.06
• 10.67-10.96
• vs
• 10.83-10.64
• 8.16-8.31
• w
• 11.68-11.47
• 7.57-7.71
• w-m
• 12.49-12.15
• 7.08-7.28
• m-vs
• 13.13-12.89
• 6.74-6.86
• w
• 13.36-13.11
• 6.62-6.75
• w
• 16.53-16.22
• 5.36-5.46
• m-s
• 16.91-16.59
• 5.24-5.34
• w-m
• 17.24-16.97
• 5.14-5.22
• w
• 19.28-19.03
• 4.60-4.66
• m-vs
• 19.62-19.36
• 4.52-4.58
• w-m
• 21.93-21.39
• 4.05-4.15
• m
• 22.32-21.87
• 3.98-4.06
• w-m
• 22.84-22.49
• 3.89-3.95
• w
• 23.14-22.78
• 3.84-3.90
• w-m
• 23.39-23.11
• 3.80-3.845
• w-m
• 23.84-23.45
• 3.73-3.79
• w-m
• 24.23-23.77
• 3.67-3.74
• m
• 24.92-24.61
• 3.57-3.615
• m-s
• 26.35-26.11
• 3.38-3.41
• w-m
• 26.79-26.35
• 3.325-3.38
• w-m
• 27.38-26.79
• 3.255-3.325
• m-s
• 29.06-28.49
• 3.07-3.13
• m-s
• 29.50-28.97
• 3.025-3.08
• m
• 31.70-30.97
• 2.82-2.885
• w-m
• 32.00-31.36
• 2.795-2.85
• m
• 33.34-32.72
• 2.685-2.735
• w-m
• 34.33-34.02
• 2.61-2.633
• w-m
• wherein said microporous crystalline metallophosphate material is in a modified form and has been modified by a process selected from the group consisting of ammonia calcinations, ion-exchange, or any combination thereof.