Patent US4450099A successfully refreshed from Google Patents.
US4450099A
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Barium hydride modified aluminum/siliceous compositions
Assignee: Shell USA Inc
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Filing: 1983-03-21
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Granted: 1984-05-22
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Expires: 2003-03-21
Abstract
Abstract Novel compositions are prepared by reacting barium hydride and metal oxide gels in the slurry phase. These compositions are useful as catalysts and catalyst supports.
Inventors
- 👤 Robert M. Lewis
- 👤 Lynn H. Slaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:19
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/0445; B; B01; B01J; B01J23/00; B01J23/02; B01J23/70; B01J23/76; B01J23/78; C07C2523/00; C07C2523/02; C07C2523/38; C07C2523/40; C07C2523/46; C07C2523/54; C07C2523/56; C07C2523/58
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
63 words
A process for preparing a metal oxide gel composition having bonded thereto barium oxide, which process comprises contacting a substantially anhydrous metal oxide gel with a powdered barium hydride in a slurry phase with the slurrying medium being an anhydrous, non-hydroxyl-containing organic liquid whereby the barium hydride reacts with the metal oxide gel, and subsequently drying the gel to remove the organic liquid.
Claim 2
Dependent Claim
63 words
A process for preparing a metal oxide gel composition having bonded thereto barium oxide, which process comprises contacting a substantially anhydrous metal oxide gel with a powdered barium hydride in a slurry phase with the slurrying medium being an anhydrous, non-hydroxyl-containing organic liquid whereby the barium hydride reacts with the metal oxide gel, and subsequently drying the gel to remove the organic liquid.
Claim 3
Dependent Claim
27 words
The process of claim 1 wherein the metal oxide gel is selected from the group consisting of aluminum oxide gel, silicon oxide gel and aluminum-silicon oxide gel.
Claim 4
Dependent Claim
33 words
The process of claims 1 or 2 wherein the amount of barium hydride utilized is not greater than the amount needed to completely react with hydroxyl moieties present in the metal oxide gel.
Claim 5
Dependent Claim
13 words
The process of claims 1 or 2 wherein the slurrying liquid is tetrahydrofuran.
Claim 6
Dependent Claim
20 words
The process of claims 1 or 2 wherein the magnesium hydride powder is less than about 100 mesh in size.
Claim 7
Dependent Claim
26 words
The process of claims 1 or 2 wherein, after drying, the gel is calcined at a temperature ranging from about 200° C. to about 900° C.
Claim 8
Dependent Claim
27 words
The process of claims 1 or 2 wherein the barium in the composition ranges from about 0.001 to about 50 percent by weight measured as barium metal.
Claim 9
Dependent Claim
27 words
The process of claims 1 or 2 wherein the barium in the composition ranges from about 0.01 to and 25 percent by weight measured as barium metal.
References Cited (Backward Citations)
US2188007A
Cited
US2281919A
Cited
US2699430A
Cited
US2680100A
Cited
US2731452A
Cited
US2900349A
Cited
US2852576A
Cited
US2935483A
Cited
US2958648A
Cited
US3526601A
Cited
US3893943A
Cited
US4235756A
Cited
US4239872A
Cited
US4295999A
Cited
US4367361A
Cited
US4368342A
Cited
US4375575A
Cited
US4375574A
Cited
US4384154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |