US2562888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of a silica-metal oxide granular catalyst
Assignee: Houdry Process Corp
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Filing: 1947-12-26
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Granted: 1951-08-07
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Expires: 1967-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jr George R Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:48
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/12; B01J21/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF PREPARING ACTIVE SILICEOUS PLURAL OXIDE CATALYST, WHICH COMPRISES REACTING IN HIGH CONCENTRATIONS AND IN THE ABSENCE OF LARGE QUANTITIES OF LIQUID REACTION MEDIUM, A SILICATE AND A COMPOUND OF A METAL WHOSE OXIDE IS CATALYTICALLY ACTIVE, TO PRODUCE A GRANULAR NONGELATINOUS PRECIPITATE OF SILICA AND SAID METAL OXIDE, THE CONCENTRATION OF SAID SILICATE AND SAID COMPOUND OF THE METAL BEING SUCH AS TO FURNISH NOT LESS THAN 150 GRAMS OF THEIR OXIDES PER LITEROF TOTAL REACTION MASS WITH SILICA PREDOMINATING.
Claim 2
Independent Claim
83 words
THE METHOD OF PREPARING ACTIVE SILICEOUS PLURAL OXIDE CATALYST, WHICH COMPRISES REACTING IN HIGH CONCENTRATIONS AND IN THE ABSENCE OF LARGE QUANTITIES OF LIQUID REACTION MEDIUM, A SILICATE AND A COMPOUND OF A METAL WHOSE OXIDE IS CATALYTICALLY ACTIVE, TO PRODUCE A GRANULAR NONGELATINOUS PRECIPITATE OF SILICA AND SAID METAL OXIDE, THE CONCENTRATION OF SAID SILICATE AND SAID COMPOUND OF THE METAL BEING SUCH AS TO FURNISH NOT LESS THAN 150 GRAMS OF THEIR OXIDES PER LITEROF TOTAL REACTION MASS WITH SILICA PREDOMINATING.
References Cited (Backward Citations)
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Cited
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Cited
US2289918A
Cited
US2429981A
Cited
US2280650A
Cited
US2438560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |