US2939896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization process and catalyst
Assignee: Phillips Petroleum Co
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Filing: 1957-12-09
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Granted: 1960-06-07
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Expires: 1977-12-09
Abstract
No abstract record available.
Inventors
- 👤 John W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; B01J37/00; B01J37/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A METHOD OF ISOMERIZING A PARAFFIN HYDROCARBON CONTAINING FROM 4 TO 12 CARBON ATOMS PERMOLECULE TO A MORE HIGHLY BRANCHED PARAFFIN HYDROCARBON WHICH COMPRISES CHARGING A CATALYST AND A HYDROCARBON FEED COMPRISING AT LEAST 90 WEIGHT PERCENT OF PARAFFIN HYDROCARBONS CONTAINING AT LEAST ONE PARAFFIN HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF NORMAL PARAFFINS CONTAINING FROM 4 TO 12 CARBON ATOMS AND SINGLY BRANCHED PARAFFINS CONTAINING FORM 5 TO 12 CARBON ATOMS PER MOLECULE, CONTACTING SAID HYDROCARBON FEED WITH SAID CATALYST IN SAID CONTACTING ZONE UNDER ISOMERIZING CONDITIONS IN THE PRESENCE OF ADDED HYDROGEN IN THE MOLE RATIO OF HYDROGEN TO HYDROCARBON FEED OF FROM 1:1 TO 10:1, SAID CATALYST COMPRISING FROM 0.01 TO 5 WEIGHT PERCENT PLATINUM, FROM 0.05 TO 8 WEIGHT PERCENT TOTAL HALOGEN, SAID HALOGEN BEING AT LEAST ONE OF THE HALOGENS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE, AND FROM 0.2 TO 1 WEIGHT PERCENT SULFATE ION IN THE FORM OF A SULFATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZIRCONIUM, AND MAGNESIUM, ALL DEPOSITED ON AN ACTIVATED ALUMINA, SAID CATALYST BEING CALCINED IN A NON-REDUCING ATMOSPHERE PRIOR TO SAID ISOMERIZATION.
Claim 2
Independent Claim
190 words
A METHOD OF ISOMERIZING A PARAFFIN HYDROCARBON CONTAINING FROM 4 TO 12 CARBON ATOMS PERMOLECULE TO A MORE HIGHLY BRANCHED PARAFFIN HYDROCARBON WHICH COMPRISES CHARGING A CATALYST AND A HYDROCARBON FEED COMPRISING AT LEAST 90 WEIGHT PERCENT OF PARAFFIN HYDROCARBONS CONTAINING AT LEAST ONE PARAFFIN HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF NORMAL PARAFFINS CONTAINING FROM 4 TO 12 CARBON ATOMS AND SINGLY BRANCHED PARAFFINS CONTAINING FORM 5 TO 12 CARBON ATOMS PER MOLECULE, CONTACTING SAID HYDROCARBON FEED WITH SAID CATALYST IN SAID CONTACTING ZONE UNDER ISOMERIZING CONDITIONS IN THE PRESENCE OF ADDED HYDROGEN IN THE MOLE RATIO OF HYDROGEN TO HYDROCARBON FEED OF FROM 1:1 TO 10:1, SAID CATALYST COMPRISING FROM 0.01 TO 5 WEIGHT PERCENT PLATINUM, FROM 0.05 TO 8 WEIGHT PERCENT TOTAL HALOGEN, SAID HALOGEN BEING AT LEAST ONE OF THE HALOGENS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE, AND FROM 0.2 TO 1 WEIGHT PERCENT SULFATE ION IN THE FORM OF A SULFATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZIRCONIUM, AND MAGNESIUM, ALL DEPOSITED ON AN ACTIVATED ALUMINA, SAID CATALYST BEING CALCINED IN A NON-REDUCING ATMOSPHERE PRIOR TO SAID ISOMERIZATION.
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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |