Patent US4209498A successfully refreshed from Google Patents.
US4209498A
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Silica-containing material FU-1
Assignee: Imperial Chemical Industries Ltd
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Filing: 1977-10-25
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Granted: 1980-06-24
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Expires: 1997-10-25
Abstract
Abstract A silica-containing material related to zeolites and referred to hereinafter as FU-1 has the composition 0.6 to 1.4 R2O.Al2O3.over 5 SiO2.O to 40 H2O, (where R is a monovalent cation or 1/n of a cation of valency n) and is characterized inter alia by its X-ray diffraction pattern. It can be made by hydrothermal synthesis in presence of methylated quaternary onium compounds. It is useful as a catalyst for hydrocarbon conversion reactions, especially isomerization of xylenes.
Inventors
- 👤 Thomas V. Whittam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:27
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7049; B01J29/72; B01J29/76; B01J29/80; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48; C07; C07C; C07C4/00; C07C4/02; C07C4/06; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2708; C07C5/2729; C07C5/2732; C07C5/2737; B01J2229/00; B01J2229/30; B01J2229/36; B01J2229/37; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S208/00; Y10S208/02; Y10S585/00; Y10S585/929; Y10S585/94
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
51 words
A silica-containing material FU-1 related to zeolites and having the chemical composition expressed by the formula 0.6 to 1.4R.sub.2 O.Al.sub.2 O.sub.3.over 5SiO.sub.2.0 to 40H.sub.2 O (where R is a monovalent cation or 1/n of a cation of valency n) and having an X-ray diffraction pattern substantially as shown in Table 1.
Claim 2
Dependent Claim
51 words
A silica-containing material FU-1 related to zeolites and having the chemical composition expressed by the formula 0.6 to 1.4R.sub.2 O.Al.sub.2 O.sub.3.over 5SiO.sub.2.0 to 40H.sub.2 O (where R is a monovalent cation or 1/n of a cation of valency n) and having an X-ray diffraction pattern substantially as shown in Table 1.
Claim 3
Dependent Claim
28 words
A freshly prepared silica-containing material according to claim 1 in which R is selected from methylated quaternary ammonium and methylated quaternary phosphonium and mixtures thereof with alkali metal.
Claim 4
Dependent Claim
22 words
A material according to claim 1 having the chemical composition expressed by the formula: 0.6 to 1.4R.sub.2 O.Al.sub.2 O.sub.3.15-45SiO.sub.2.0 to 40H.sub.2 O.
Claim 5
Dependent Claim
19 words
A material according to claim 2 in which R is selected from tetramethylammonium and mixtures thereof with alkali metal.
Claim 6
Dependent Claim
19 words
A material according to claim 3 in which R is selected from tetramethylammonium and mixtures thereof with alkali metal.
References Cited (Backward Citations)
GB1117568A
Cited
US3849463A
Cited
US4052479A
Cited
US4021502A
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US4021447A
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US4060590A
Cited
US4066714A
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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) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |