US2985699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization of paraffin hydrocarbons
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-12-29
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Granted: 1961-05-23
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Schwartz Donald
- 👤 Jr Paul Earl Eberly
- 👤 Gladrow Elroy Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:04
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR CONVERTING NORMAL PARAFFIN HYDROCARBONS OF FROM 4 TO 7 CARBON ATOMS TO THE CORRESPONDING BRANCHED CHAIN ISOMERS WHICH CONSISTS OF CONTACTING SAID HYDROCARBONS AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 40* TO ABOUT 120*F. WITH A SUPPORTED BIFUNCTIONAL CATALYST COMPRISING AN ALUMINUM HALIDE SELECTED FROM THE GROUP CONSISTING OF ALUMINUM BROMIDE AND ALUMINUM BROMIDE-ALUMINUM CHLORIDE MIXTURES AND A SUPPORT CARRYING ABOUT 0.01 TO 5 WT. PERCENT OF PLATINUM, SAID PLATINUM BEING IN THE FORM OF A SULFIDE COMPOUND.
Claim 2
Dependent Claim
83 words
A PROCESS FOR CONVERTING NORMAL PARAFFIN HYDROCARBONS OF FROM 4 TO 7 CARBON ATOMS TO THE CORRESPONDING BRANCHED CHAIN ISOMERS WHICH CONSISTS OF CONTACTING SAID HYDROCARBONS AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 40* TO ABOUT 120*F. WITH A SUPPORTED BIFUNCTIONAL CATALYST COMPRISING AN ALUMINUM HALIDE SELECTED FROM THE GROUP CONSISTING OF ALUMINUM BROMIDE AND ALUMINUM BROMIDE-ALUMINUM CHLORIDE MIXTURES AND A SUPPORT CARRYING ABOUT 0.01 TO 5 WT. PERCENT OF PLATINUM, SAID PLATINUM BEING IN THE FORM OF A SULFIDE COMPOUND.
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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |