Crystalline borosilicate and process of preparation
AssigneeStandard Oil Company (Indiana)
InventorMarvin R. Klotz
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Abstract
A new crystalline borosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxides: 0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O wherein M is at least one cation, n is the valence of the cation, Y is a value within the range of 4 to about 600, and Z is a value within the range of 0 to about 160, and providing a specific X-ray diffraction pattern. The borosilicate is used to catalyze various processes, such as isomerization, disproportionation, and transalkylation.
Claims41
A crystalline borosilicate which comprises a molecular sieve material having the following composition in terms of mole ratios of oxides:
- 0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein M is at least one cation having a valence of n, Y is between 4 and about 600, and Z is between 0 and about 160, and providing an X-ray diffraction pattern comprising the following X-ray diffraction lines and assigned strengths:
- ______________________________________ d (A) Assigned Strength ______________________________________ 11.2 .+-. 0.2 W-VS 10.0 .+-. 0.2 W-MS 5.97 .+-. 0.07 W-M 3.82 .+-. 0.05 VS 3.70 .+-. 0.05 MS 3.62 .+-. 0.05 M-MS 2.97 .+-. 0.02 W-M 1.99 .+-. 0.02 VW-M ______________________________________
A method for preparing a crystalline borosilicate which comprises a molecular sieve material providing an X-ray diffraction pattern comprising the following X-ray diffraction lines and assigned strengths:
- ______________________________________ d(A) Assigned Strength ______________________________________ 11.2 .+-. 0.2 W - VS 10.0 .+-. 0.2 W - MS 5.97 .+-. 0.07 W - M 3.82 .+-. 0.05 VS 3.70 .+-. 0.05 MS 3.62 .+-. 0.05 M - MS 2.97 .+-. 0.02 W - M 1.99 .+-. 0.02 VW - M ______________________________________
- and having the following composition in terms of mole ratios of oxides:
- 0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein M is at least one cation having a valence of n, Y is between 4 and about 600, and Z is between 0 and about 160, which method comprises:
- (1) preparing a mixture containing an oxide of silicon, an oxide of boron, a hydroxide of an alkali metal or an alkaline earth metal, an alkylammonium cation or a precursor of an alkylammonium cation, and water;
- and (2) maintaining said mixture at suitable reaction conditions to effect formation of said borosilicate, said reaction conditions comprising a reaction temperature within the range of about 25.degree. C. to about 300.degree. C., a pressure of at least the vapor pressure of water at the reaction temperature, and a reaction time that is sufficient to effect crystallization.
A crystalline borosilicate having a composition in terms of mole ratios of oxides as follows:
- 0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein M is at least one cation having a valence of n, Y is between 4 and about 500, and Z is between 0 and about 160, said borosilicate showing the X-ray diffraction lines of Table V of the specification.
A crystalline borosilicate having a composition in terms of mole ratios of oxides as follows:
- 0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein M is at least one cation having a valence of n, Y is between 4 and about 500, and Z is between 0 and about 160, said borosilicate showing the X-ray diffraction lines and assigned strengths substantially as described in Table V of the specification.
A crystalline borosilicate having a composition in terms of oxides as follows:
- 0.9.+-.0.2[WR.sub.2 O+(1-W)]M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein R is tetrapropylammonium cation, M is an alkali metal cation, W is greater than 0 and less than or equal to 1, Y is between about 4 and about 500, Z is between 0 and about 160, said borosilicate showing the X-ray diffraction lines and assigned strengths substantially as described in Table VI of the specification.
A crystalline borosilicate having a composition in terms of mole ratios of oxides as follows:
- 0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein M is at least one cation having a valence of n, Y is between 4 and about 300, and Z is between 0 and about 160, said borosilicate having the X-ray diffraction lines and assigned strengths substantially as described in Table II of the specification.
A crystalline borosilicate having a composition in terms of oxides as follows:
- 0.9.+-.0.2[WR.sub.2 O+(1-W)M.sub.2/n O]:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O
- wherein R is a tetrapropylammonium cation, M is an alkali metal cation, W is greater than 0 and less than or equal to 1, Y is between about 4 and about 300, Z is between 0 and about 160, said borosilicate having the X-ray diffraction lines and assigned strengths substantially as described in Table IV of the specification.
A method for preparing a crystalline borosilicate possessing X-ray diffraction lines and assigned strengths substantially as shown in Table III, which method comprises preparing a mixture containing an oxide of silicon, an oxide of boron, a base of an alkali or alkaline earth metal, a tetraethylammonium cation, and water;
- maintaining said mixture at reaction conditions including a temperature in the range of from about 100.degree. C. to about 250.degree. C. to effect formation of said crystalline borosilicate.
Dependencies are inferred from the claim text.