US2845447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aluminum alcoholates
Assignee: Shell Development Co
•
Filing: 1954-04-08
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Granted: 1958-07-29
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Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
- 👤 George J Carlson
- 👤 George W Gaertner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:38
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/68; C07C29/70; C07C31/00; C07C31/28; C07C31/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
THE CONTINUOUS PROCESS FOR THE PRODUCTION OF ALUMINUM ALCOHOLATES WHICH COMPRISES, INTROCUDING A CONTINUOUS STREAM OF SECONDARY ALIPHATIC ALCOHOL HAVING 3 TO 9 CARBON ATOMS PER MOLEUCLE INTO THE LOWER PART OF A FIXED BED OF PIECES OF ALUMINUM METAL MAINTAINED AT ABOUT 80* TO ABOUT 250*C. AND UNDER PRESSURE SUFFICIENT TO MAINTAIN A POOL FO ALCOHOL IN THE LIQUID PHASE IN THE LOWER PART ONLY OF SAID BED ALUMINUM, THEREBY REACTING SAID SECONDARY ALCOHOL WITH ALUMINUM WITH FORMATION OF REACTION PRODUCTS COMPRISING ALUMINUM ALCOHOLATE AND HYDROGEN IN SAID POOL OF ALCOHOL IN THE ABSENCE OF ANY ADDED CATALYST, CONTINUOUSLY WIDHTDRAWING LIQUID COMPRISING SAID ALUMINUM ALCOHOLATE AND UNCONVERTED ALCOHOL FROM SAID POOL OF LIQUID, ADDING ALUMINUM METAL AT THE TOP OF THE BED AT A CONTROLLED RATE TO REPLACE THE ALUMINUM REACTED SUBSTANTIALLY AS RAPIDILY AS IT IS CONSUMED, AND CONTROLLING THE RATE OF INTRODUCTION OF ALCOHOL AND OF SAID ALUMINUM INTO SAID BED AND THE RATE OF WITH-
Claim 2
Dependent Claim
159 words
THE CONTINUOUS PROCESS FOR THE PRODUCTION OF ALUMINUM ALCOHOLATES WHICH COMPRISES, INTROCUDING A CONTINUOUS STREAM OF SECONDARY ALIPHATIC ALCOHOL HAVING 3 TO 9 CARBON ATOMS PER MOLEUCLE INTO THE LOWER PART OF A FIXED BED OF PIECES OF ALUMINUM METAL MAINTAINED AT ABOUT 80* TO ABOUT 250*C. AND UNDER PRESSURE SUFFICIENT TO MAINTAIN A POOL FO ALCOHOL IN THE LIQUID PHASE IN THE LOWER PART ONLY OF SAID BED ALUMINUM, THEREBY REACTING SAID SECONDARY ALCOHOL WITH ALUMINUM WITH FORMATION OF REACTION PRODUCTS COMPRISING ALUMINUM ALCOHOLATE AND HYDROGEN IN SAID POOL OF ALCOHOL IN THE ABSENCE OF ANY ADDED CATALYST, CONTINUOUSLY WIDHTDRAWING LIQUID COMPRISING SAID ALUMINUM ALCOHOLATE AND UNCONVERTED ALCOHOL FROM SAID POOL OF LIQUID, ADDING ALUMINUM METAL AT THE TOP OF THE BED AT A CONTROLLED RATE TO REPLACE THE ALUMINUM REACTED SUBSTANTIALLY AS RAPIDILY AS IT IS CONSUMED, AND CONTROLLING THE RATE OF INTRODUCTION OF ALCOHOL AND OF SAID ALUMINUM INTO SAID BED AND THE RATE OF WITH-
References Cited (Backward Citations)
US2666076A
Cited
GB245473A
Cited
DE544690C
Cited
DE602376C
Cited
GB454480A
Cited
CH190421A
Cited
US2440750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |