US3327006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium iron phosphate catalyst and method for dehydrogenating and cracking alkanes and olefins
Assignee: Dow Chemical Co
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Filing: 1964-01-06
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Granted: 1967-06-20
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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
2026-11-01 13:47
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE METHOD WHICH COMPRISES DEHYDROGENATING AND CRACKING AN ALIPHATIC HYDROCARBON HAVING AT LEAST 3 CARBON ATOMS BY PASSING THE HYDROCARBON TOGETHER WITH STEAM AT A TEMPERATURE BETWEEN 600* AND 750*C. IN CONTACT WITH A CATALYST COMPOSED OF A METAL PHOSPHATE MATERIAL CONSISTING ESSENTIALLY OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CHROMIUM AND IRON IN THE RELATIVE PROPORTIONS OF BETWEEN 6 AND 12 ATOMS OF CHROMIUM PER ATOM OF IRON WHICH METAL PHOSPHATE MATERIAL IS PREPARABLE BY MIXING A SOLUTION OF SOLUBLE SALTS OF
Claim 2
Independent Claim
82 words
THE METHOD WHICH COMPRISES DEHYDROGENATING AND CRACKING AN ALIPHATIC HYDROCARBON HAVING AT LEAST 3 CARBON ATOMS BY PASSING THE HYDROCARBON TOGETHER WITH STEAM AT A TEMPERATURE BETWEEN 600* AND 750*C. IN CONTACT WITH A CATALYST COMPOSED OF A METAL PHOSPHATE MATERIAL CONSISTING ESSENTIALLY OF PHOSPHATE RADICALS CHEMICALLY COMBINED WITH CHROMIUM AND IRON IN THE RELATIVE PROPORTIONS OF BETWEEN 6 AND 12 ATOMS OF CHROMIUM PER ATOM OF IRON WHICH METAL PHOSPHATE MATERIAL IS PREPARABLE BY MIXING A SOLUTION OF SOLUBLE SALTS OF
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |