Patent US3270085A successfully refreshed from Google Patents.
US3270085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for isomerizing alpha olefins to beta olefins with chromium nickel phosphate
Assignee: Dow Chemical Co
•
Filing: 1964-01-06
•
Granted: 1966-08-30
•
Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Charles R Noddings
- 👤 Ronald G Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:40
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2525; C07C5/2537
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
THE METHOD WHICH COMPRISES ISOMERIZING ALPHA OLEFINIC HYDROCARBONS HAVING AT LEAST 4 CARBON ATOMS TO THEIR CORRESPONDING BETA ISOMERS WHICH COMPRISES PASSING THE HYDROCARBONS AT A TEMPERATURE BETWEEN 100* AND 300*C. IN CONACT WITH A CATALYST COMPOSED OF A METAL PHOSPHATE MATERIAL CONSISTING ESSENTIALLY OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CHROMIUM AND NICKEL IN THE RELATIE PROPORTIONS OF BETWEEN 6 AND 12 ATOMS OF CHROMIUM PER ATOM OF NICKEL AND WHICH METAL PHOSPHATE MATERIAL IS PREPARABLE BY MIXING A SOLUTION OF SOLUBLE SALTS OF CHROMIUM AND NICKEL WITH A SOLUTION OF SOLUBLE ORTHOPHOSPHATE AND PRECIPITATING SAID METAL PHOSPHATE MATERIAL FROM THE MIXTURE AT A PH OF BETWEEN ABOUT 4 TO 10.
Claim 2
Independent Claim
111 words
THE METHOD WHICH COMPRISES ISOMERIZING ALPHA OLEFINIC HYDROCARBONS HAVING AT LEAST 4 CARBON ATOMS TO THEIR CORRESPONDING BETA ISOMERS WHICH COMPRISES PASSING THE HYDROCARBONS AT A TEMPERATURE BETWEEN 100* AND 300*C. IN CONACT WITH A CATALYST COMPOSED OF A METAL PHOSPHATE MATERIAL CONSISTING ESSENTIALLY OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CHROMIUM AND NICKEL IN THE RELATIE PROPORTIONS OF BETWEEN 6 AND 12 ATOMS OF CHROMIUM PER ATOM OF NICKEL AND WHICH METAL PHOSPHATE MATERIAL IS PREPARABLE BY MIXING A SOLUTION OF SOLUBLE SALTS OF CHROMIUM AND NICKEL WITH A SOLUTION OF SOLUBLE ORTHOPHOSPHATE AND PRECIPITATING SAID METAL PHOSPHATE MATERIAL FROM THE MIXTURE AT A PH OF BETWEEN ABOUT 4 TO 10.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |