US3678124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of mono- and diolefin hydrocarbons
Assignee: GEORGY KONSTANTINOVICH BORESKO
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Filing: 1968-10-24
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Granted: 1972-07-18
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Expires: 1988-10-24
Abstract
Abstract A process for the production of mono- and diolefin hydrocarbons by the catalytic oxidative dehydrogenation of paraffin hydrocarbons at 400*-700*C in the presence of catalysts comprising mixed oxide systems and consisting of oxides of molybdenum and/or tungsten and oxides of at least one of the following metals: chromium, manganese, iron, nickel and cadmium.
Inventors
- 👤 Gennady Arkadievich Stepanov
- 👤 Anatoly Lvovich Tsailingold
- 👤 Fedor Semenovich Pilipenko
- 👤 Valerian Mikhailovich Sobolev
- 👤 Georgy Konstantinovic Boreskov
- 👤 Roman Alexeevich Buyanov
- 👤 Sergei Alexeevich Venyaminov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/883; B01J23/887; B01J23/8878; B01J23/888; B01J23/8885
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
30 words
A process as claimed in claim 1, wherein the catalysts are employed on a carrier selected from the group consisting of aluminosilicates, silica gel, alumina and mixtures of the same.
Claim 2
Dependent Claim
35 words
A process as claimed in claim 1, wherein oxidative dehydrogenation is carried out in the presence of an inert diluent selected from the group consisting of steam, nitrogen, argon, helium and mixtures of the same.
Claim 3
Dependent Claim
35 words
A process as claimed in claim 2, wherein oxidative dehydrogenation is carried out in the presence of an inert diluent selected from the group consisting of steam, nitrogen, argon, helium and mixtures of the same.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 3, wherein the molar ratio of inert diluent to paraffin hydrocarbons is 1:1 - 40:1.
Claim 5
Dependent Claim
21 words
A process as claimed in claim 4, wherein the molar ratio of inert diluent to paraffin hydrocarbons is 1:1 - 40:1.
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |