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US4420467A
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Zeolite Nu-5
Assignee: Imperial Chemical Industries Ltd
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Filing: 1981-12-17
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Granted: 1983-12-13
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Expires: 2001-12-17
Abstract
Abstract A synthetic zeolite material, designated zeolite Nu-5, having a molar composition expressed by the formula; 0.5 to 1.5 R2O: Y2O3: at least 10 XO2: 0 to 2000 H2O wherein R is a monovalent cation or 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, manganese, gallium or boron, and H2O is water of hydration additional to water notionally present when R is H, and having a defined X-ray diffraction pattern. Zeolite Nu-5 is a useful catalyst.
Inventors
- 👤 Thomas V. Whittam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:33
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/06; C01B39/10; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/78; C01B39/12; C01B39/36; C01B39/38; C01B39/40; B01J2229/00; B01J2229/10; B01J2229/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
80 words
A synthetic zeolite material having a molar composition expressed by the formula: 0.5 to 1.5R 2 O:Y 2 O 3 :45 to 100XO 2 :0 to 2000H 2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon or germanium, Y is aluminium, and H 2 O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern as set out in Table 1.
Claim 2
Dependent Claim
80 words
A synthetic zeolite material having a molar composition expressed by the formula: 0.5 to 1.5R 2 O:Y 2 O 3 :45 to 100XO 2 :0 to 2000H 2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon or germanium, Y is aluminium, and H 2 O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern as set out in Table 1.
Claim 3
Dependent Claim
93 words
A synthetic zeolite material having a molar composition expressed by the formula: 0.5 to 1.5R 2 O:Y 2 O 3 :45 to 100XO 2 :0 to 2000H 2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and or germanium, Y is aluminum and one or more of iron, chromium, arsenic, manganese, gallium or boron, and H 2 O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern as set out in Table 1.
Claim 4
Dependent Claim
93 words
A synthetic zeolite material having a molar composition expressed by the formula: 0.5 to 1.5R 2 O:Y 2 O 3 :45 to 100XO 2 :0 to 2000H 2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and or germanium, Y is aluminum and one or more of iron, chromium, arsenic, manganese, gallium or boron, and H 2 O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern as set out in Table 1.
Claim 5
Dependent Claim
55 words
A synthetic zeolite material according to claim 1 or claim 2 having, as freshly made, a molar composition expressed by the formula: 0.7 to 1.5M 2 O:1.0 to 200A:Y 2 O 3 :45-100XO 2 :0 to 2000H 2 O wherein M is an alkali metal, ammonium or hydrogen and A is pentaerythritol, dipentaerythritol or tripentaerythritol.
Claim 6
Dependent Claim
17 words
A synthetic zeolite material according to claim 1 or claim 2 wherein R is or includes hydrogen.
Claim 7
Dependent Claim
121 words
A method of making a synthetic zeolite material as defined in claim 3 which comprises reacting an aqueous mixture comprising at least one oxide XO 2 , at least one oxide Y 2 O 3 , at least one source of M and at least one compound selected from pentaerythritol, depentaerythritol and tripentaerythritol and wherein the aqueous mixture has the molar composition: XO 2 /Y 2 O 3 --50 to 200 MOH/XO 2 --0.10 to 0.25 Z - /Y 2 O 3 --10 to 100 A/Y 2 O 3 --1 to 50 H 2 O/XO 2 --15 to 300 wherein A is pentaerythritol, dipentaerythritol or tripentaerythritol, M is an alkali metal or ammonium and Z - is a strong acid radical.
Claim 8
Dependent Claim
14 words
A catalyst comprising a synthetic zeolite material as claimed in claim 1 or 2.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |