Zeolite SSZ-31
AssigneeChevron Research and Technology Company
InventorsStacey I. Zones, Thomas V. Harris, Andrew Rainis, Donald S. Santilli
Life of this patent
Estimating the term…
Abstract
A crystalline zeolite SSZ-31 is prepared by various methods using quaternary ammonium ion templates.
Claims33
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, and mixtures thereof greater than about 50:1, and having the X-ray diffraction lines of Table 1.
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, and mixtures thereof greater than about 100:1, and having the X-ray diffraction lines of Table 1.
The zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide or mixtures of boron oxide with aluminum oxide, gallium oxide, and iron oxide, greater than 50:1, and having the X-ray diffraction lines of Table 1.
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide or mixtures of boron oxide with aluminum oxide, greater than 50:1, and having the X-ray diffraction lines of Table 1.
A zeolite having a mole ratio of silicon oxide to boron oxide greater than 50:1 and having the X-ray diffraction lines of Table 1.
A zeolite having a mole ratio of silicon oxide to aluminum oxide greater than about 50:1 and having the X-ray diffraction lines of Table 1.
A zeolite having a composition, as synthesized and in the anhydrous state in terms of mole ratios of oxides as follows:
- (0.1 to 10)Q.sub.2 O:(0.1 to 5.0)M.sub.2 O:W.sub.2 O.sub.3 (greater than 50 )YO.sub.2
- wherein M is an alkali metal cation, W is selected from boron, Y is selected from silicon, germanium, and mixtures thereof, Q is a quaternary ammonium ion and having the X-ray diffraction lines of Table 1.
A zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios of oxides as follows:
- (0.1 to 10)Q.sub.2 O:(0.1 to 5.0)M.sub.2 O:W.sub.2 O.sub.3 :(greater than 100)YO.sub.2
- wherein M is an alkali metal cation, W is selected from aluminum, gallium, iron, and mixtures thereof, Y is selected from silicon, germanium and mixtures thereof, Q is a [5.2.1.0] tricyclodecane quaternary ammonium ion, and having the X-ray diffraction lines of Table 1.
A method for preparing a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide with aluminum oxide, gallium oxide, and iron oxide, greater than 50:1, and having the X-ray diffraction lines of Table 1, comprising:
- (a) preparing an aqueous mixture containing sources of a quaternary ammonium ion, an oxide selected from boron oxide in a borosilicate form, silicon oxide, germanium oxide, and mixtures thereof;
- (b) maintaining the mixture at a temperature of at least 140.degree. C. until crystals of said zeolite are formed;
- and
- (c) recovering said crystals.
A method for replacing the boron in a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide or mixtures of boron oxide with aluminum oxide, gallium oxide, and iron oxide, greater than 50:1, and having the X-ray diffraction lines of Table 1 with a Group IIIA metal or a transition metal to form a zeolite composition comprising:
- a. preparing an aqueous solution of a Group IIIA metal or a transition metal;
- b. adding said zeolite to the aqueous solution;
- and
- c. recovering the zeolite product.
A method for preparing a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to boron oxide, greater than 50:1, and having the X-ray diffraction lines of Table 1, comprising:
- (a) preparing an aqueous mixture containing sources of a quaternary ammonium ion, an oxide selected from boron oxide in a borosilicate form, silicon oxide, germanium oxide, and mixtures thereof;
- (b) maintaining the mixture at a temperature of at least 140.degree. C. until crystals of said zeolite are formed;
- and
- (c) recovering said crystals.
Dependencies are inferred from the claim text.