US2932620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing catalysts utilizing alumina in the carriers
Assignee: BASF SE
•
Filing: 1955-03-14
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Granted: 1960-04-12
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Fuener Wilhelm Von
- 👤 Oettinger Willi
- 👤 Reitz Ortwin
- 👤 Lorenz Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:40
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; C01F7/34; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/16; B01J23/24; B01J23/38; B01J23/40; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J37/00; B01J37/02; B01J37/03; B01J37/036; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A PROCESS FOR MANUFACTURE OF CATALYTIC COMPOSITIONS, THE IMPROVEMENT WHICH COMPRISES BRINGING A FLOWING ALUMINUM SALT SOLUTION TOGETHER WITH A FLOWING ALKALINE PRECIPITANT WHILE SIMULTANEOUSLY EFFECTING THE MOST INTIMATE MIXING POSSIBLE, THE RESULTING PRECIPITATED ALUMINUM HYDROXIDE BEING REMOVED AS QUICKLY AS POSSIBLE FROM CONTACT WITH THE FLOWING REACTANTS SO THAT NO FURTHER ALUMINUM HYDROXIDE IS FORMED ON THAT ALREADY PRECIPITATED, AND HEATING THE PRICIPITATE FOR AT LEAST ONE-HALF HOUR AT ABOUT 100*C.
Claim 2
Dependent Claim
73 words
IN A PROCESS FOR MANUFACTURE OF CATALYTIC COMPOSITIONS, THE IMPROVEMENT WHICH COMPRISES BRINGING A FLOWING ALUMINUM SALT SOLUTION TOGETHER WITH A FLOWING ALKALINE PRECIPITANT WHILE SIMULTANEOUSLY EFFECTING THE MOST INTIMATE MIXING POSSIBLE, THE RESULTING PRECIPITATED ALUMINUM HYDROXIDE BEING REMOVED AS QUICKLY AS POSSIBLE FROM CONTACT WITH THE FLOWING REACTANTS SO THAT NO FURTHER ALUMINUM HYDROXIDE IS FORMED ON THAT ALREADY PRECIPITATED, AND HEATING THE PRICIPITATE FOR AT LEAST ONE-HALF HOUR AT ABOUT 100*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |