US3213034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of alcl3-h3po4 catalyst
Assignee: Phillips Petroleum Co
•
Filing: 1961-04-03
•
Granted: 1965-10-19
•
Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 Lewis E Drehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:01
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A PROCESS FOR THE PRODUCTION OF A CATALYST WHICH COMPRISES IMPREGATING AN ACTIVE POROUS OXIDE SUPPORT MATERIAL WITH PHOSPHORIC ACID, DRYING THE IMPREGNATED SUPPORT MATERIAL, AND SUBLIMING ALUMINUM CHLORIDE ONTO SAID IMPREGNATED SUPPORT MATERIAL; THE IMPROVEMENT WHICH COMPRISES CONTACTING THE SUPPORT MATERIAL WITH ANHYDROUS HYDROGEN CHLORIDE AT A TEMPERATURE IN THE RANGE OF 400-1200*F. FOR A PERIOD OF TIME FROM 0.1-20 HOURS AND PRIOR TO SUBLIMING ALUMINUM CHLORIDE ONTO SAID SUPPORT MATERIAL.
Claim 2
Dependent Claim
73 words
IN A PROCESS FOR THE PRODUCTION OF A CATALYST WHICH COMPRISES IMPREGATING AN ACTIVE POROUS OXIDE SUPPORT MATERIAL WITH PHOSPHORIC ACID, DRYING THE IMPREGNATED SUPPORT MATERIAL, AND SUBLIMING ALUMINUM CHLORIDE ONTO SAID IMPREGNATED SUPPORT MATERIAL; THE IMPROVEMENT WHICH COMPRISES CONTACTING THE SUPPORT MATERIAL WITH ANHYDROUS HYDROGEN CHLORIDE AT A TEMPERATURE IN THE RANGE OF 400-1200*F. FOR A PERIOD OF TIME FROM 0.1-20 HOURS AND PRIOR TO SUBLIMING ALUMINUM CHLORIDE ONTO SAID SUPPORT MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |