US3285713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube reactors
Assignee: BASF SE
•
Filing: 1963-12-13
•
Granted: 1966-11-15
•
Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 Poehler Guenter
- 👤 Wegerich Anton
- 👤 Goehre Otto
- 👤 Giehne Hellmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:41
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J19/00; B01J19/24; B01J19/2415; B01J19/2425; B01J8/062; C; C07; C07C; C07C45/00; C07C45/002; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A TUBE REACTOR USEFUL FOR THE CATALYTIC DEHYDROGENATION OF ALCOHOLS COMPRISING A PLURALITY OF TUBES IN WHICH THE RATIO OF TUBE DIAMETER OF TUBE LENGTH IA DEOM 12:1000 TO 17:1000 AND THE TUBE DIAMETER IS FROM 70 TO 120 MM., SAID TUBES BEING DISTRIBUTED OVER THE CROSS-SECTION OF THE REACTOR SO THAT A CENTRAL SPACE IS LEFT FREE FROM TUBES, THE CROSS-SECTIONAL AREA OF SAID CENTRAL SPACE BEING FROM 7 TO 25%% OF THE TOTAL CROSS-SECTIONAL AREA OF THE REACTOR, A PLURALITY OF BAFFLE PLATES SUBSTANTIALLY PERPENDICULAR TO SAID TUBES AND LOCATED ALTERNATELY AGAINST THE RECTOR WALL AND IN THE CENTER OF THE CROSS-SECTION OF THE REACTOR TO DEFLECT A GASEOUS HEATING MEDIUM, SAID CENTRAL BAFFLE PLATES HAVING A SURFACE AREA OF 25 TO 60% OF THE TOTAL CROSS-SECTIONAL AREA OF SAID REACTOR AND SAID BAFFLE PLATES ALONG THE WALL HAVING A SURFACE AREA OF 50 TO 75% OF THE TOTAL CROSSSECTIONAL AREA OF SAID REACTOR, AND ANNULAR DUCTS ARRANGED ONE AT EACH END OF SAID REACTOR AND HAVING OPENINGS COM MUNCATING WITH THE INTERIOR OF SAID REACTOR FOR THE SUPPLY AND WITHDRAWAL OF SAID GASEOUS HEATING MEDIUM.
Claim 2
Dependent Claim
188 words
A TUBE REACTOR USEFUL FOR THE CATALYTIC DEHYDROGENATION OF ALCOHOLS COMPRISING A PLURALITY OF TUBES IN WHICH THE RATIO OF TUBE DIAMETER OF TUBE LENGTH IA DEOM 12:1000 TO 17:1000 AND THE TUBE DIAMETER IS FROM 70 TO 120 MM., SAID TUBES BEING DISTRIBUTED OVER THE CROSS-SECTION OF THE REACTOR SO THAT A CENTRAL SPACE IS LEFT FREE FROM TUBES, THE CROSS-SECTIONAL AREA OF SAID CENTRAL SPACE BEING FROM 7 TO 25%% OF THE TOTAL CROSS-SECTIONAL AREA OF THE REACTOR, A PLURALITY OF BAFFLE PLATES SUBSTANTIALLY PERPENDICULAR TO SAID TUBES AND LOCATED ALTERNATELY AGAINST THE RECTOR WALL AND IN THE CENTER OF THE CROSS-SECTION OF THE REACTOR TO DEFLECT A GASEOUS HEATING MEDIUM, SAID CENTRAL BAFFLE PLATES HAVING A SURFACE AREA OF 25 TO 60% OF THE TOTAL CROSS-SECTIONAL AREA OF SAID REACTOR AND SAID BAFFLE PLATES ALONG THE WALL HAVING A SURFACE AREA OF 50 TO 75% OF THE TOTAL CROSSSECTIONAL AREA OF SAID REACTOR, AND ANNULAR DUCTS ARRANGED ONE AT EACH END OF SAID REACTOR AND HAVING OPENINGS COM MUNCATING WITH THE INTERIOR OF SAID REACTOR FOR THE SUPPLY AND WITHDRAWAL OF SAID GASEOUS HEATING MEDIUM.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |