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US 12,398,043 B2Granted
Zeolite syntheses using diquaternary structure directing agents
AssigneeExxonMobil Technology and Engineering Company
InventorsRoss Mabon, Allen W. Burton, Hilda B. Vroman, Simon C. Weston
Life of this patent
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Abstract
A method can include heating an aqueous reaction mixture comprising a silicon source and a boron source and/or an aluminum source in the presence of a quaternary structure directing agent to a temperature of at least 75° C. to produce a zeolite. A composition can include a borosilicate zeolite, an aluminosilicate zeolite, or an aluminoborosilicate zeolite having a framework symmetry of C2/m and a unit cell with measurements of a of 3.5 Å to 4.5 Å, b of 20.1 Å to 21.1 Å, c of 15.5 to 16.5 Å, and β of 97° to 98°.
Claims1
A composition comprising:
- a borosilicate zeolite, an aluminosilicate zeolite, or an aluminoborosilicate zeolite having a micropore volume of about 0.24 cm3/g to about 0.28 cm3/g, the borosilicate zeolite, aluminosilicate zeolite, or aluminoborosilicate zeolite being EMM-59 in calcined form, the borosilicate zeolite, aluminosilicate zeolite, or aluminoborosilicate zeolite having an X-ray diffraction pattern including d-spacings and relative intensities of:
- d-spacing (Å)
- Relative Intensity
- 13.3-13-6
- S
- 12.0-12.2
- VS
- 11.5-11.8
- S
- 10.3-10.6
- S
- 9.90-10.1
- S
- 7.60-7.65
- W
- 6.05-6.15
- W
- 4.20-4.25
- W
- 3.85-3.90
- VS.
18 more elements
Dependencies are inferred from the claim text.