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EP0108486A1
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Preparation of zeolites
Assignee: Imperial Chemical Industries Ltd
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Filing: 1983-09-26
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Granted: —
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Expires: 2003-09-26
Abstract
Abstract A new zeolite material designated EU-13 has a molar composition expressed by the formula: 0.8 to 3.0 R 2 0 : Y 2 O 3 : at least 10 X0 2 : 0 to 2000 H 2 wherein R is a monovalent cation of 1/n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron and H 2 0 is water of hydration additional to water notionally present when R is H, and having an X-ray powder diffraction pattern substantially as set out in Table 1. The zeolite material is prepared from a reaction mixture containing X0 2 (preferably silica), Y 2 0 3 (preferably alumina) and a methylated quaternary ammonium or phosphonium compound, most preferably a tetramethylammonium compound.
Inventors
- 👤 Abraham Araya
- 👤 Barrie Milner Lowe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 23:51
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48; C01G; C01G17/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
A crystalline zeolite material, EU-13, having a molar composition (in terms of mole ratios of oxides) expressed by the formula: 0.8 to 3.0 R20 : Y203 : at least 10 X0 2 : 0 to 2000 H 2 0 wherein R is a monovalent cation or n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron and H 2 0 is water of hydration additiinal to water notionally present when R is H, and having an X-ray powder diffraction pattern substantially as set out in Table 1 (as determined by standard technique using copper Rα radiation) and substantially as shown in Figure 1.
Claim 2
Dependent Claim
122 words
A crystalline zeolite material, EU-13, having a molar composition (in terms of mole ratios of oxides) expressed by the formula: 0.8 to 3.0 R20 : Y203 : at least 10 X0 2 : 0 to 2000 H 2 0 wherein R is a monovalent cation or n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron and H 2 0 is water of hydration additiinal to water notionally present when R is H, and having an X-ray powder diffraction pattern substantially as set out in Table 1 (as determined by standard technique using copper Rα radiation) and substantially as shown in Figure 1.
Claim 3
Dependent Claim
26 words
A crystalline zeolite material, EU-13, as claimed in claim 1 wherein R is or includes an alkali metal cation, ammonium, hydrogen or a nitrogen-containing organic cation.
Claim 4
Dependent Claim
67 words
A crystalline zeolite material, EU-13, as claimed in claim 1 or 2 having, as freshly made, a molar composition expressed by the formula 0 to 2.0 M 2 0 : 0 to 300A : Y 2 0 3 : at least 5 X0 2 : 0 to 2000 H 2 0 where M is an alkali metal, ammonium or hydrogen and A is ntrigen- containing organic cation.
Claim 5
Dependent Claim
143 words
A method of making the crystalline zeolite material, EU-13 as defined in claim 1, which comprises reacting an aqueous mixture containing sources of at least one oxide X0 2 , at least one oxide Y 2 O 3 and at least one methylated quaternary ammonium or methylated quaternary phosphonium compound, the reaction mixture having the molar composition: X0 2 /Y 2 0 3 at least 10 M 1 OR/XO 2 in the range 0.04 to 1.0 H 2 0/X0 2 in the range 10 to 100 A/X0 2 in the range 0.01 to 0.5 M 2 Z/RO 2 in the range 0 to 0.5 wherein each of M 1 and M 2 represents an alkali metal, ammonium or hydrogen, A represents the methylated quaternary compound as hereinbefore defined, X and Y have the meanings as hereinbefore defined, and Z represents an acid radical.
Claim 6
Dependent Claim
69 words
A method as claimed in claim 4 wherein the reaction mixture has a molar composition in which XO 2 /Y 2 O 3 is in the range 10 to 600 M 1 OH/XO 2 is in the range 0.1 to 0.65 H 2 O/XO 2 is in the range 20 to 75 A/X0 2 is in the range 0.02 to 0.25 M2Z/X02 is in the range 0 to 0.3
Claim 7
Dependent Claim
19 words
A method as claimed in claim 4 or 5 in which the methylated quaternary compound is a tetramethylammonium compound.
Claim 8
Dependent Claim
18 words
A method as claimed in claim 6 in which the methylated quaternary compound is tetramethylammonium hydroxide or bromide.
Claim 9
Independent Claim
31 words
A method as claimed in any one of claims 4 to 7 in which M 1 , and M 2 if present, is/are at least one of potassium, lithium and rubidium.
Claim 10
Dependent Claim
15 words
A Catalyst comprising zeolite EU-13 as defined in any one of claims 1 to 3.
Claim 11
Dependent Claim
10 words
A catalytic process employing the catalyst claimed in claim 9.
References Cited (Backward Citations)
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