Patent US2945074A successfully refreshed from Google Patents.
US2945074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acetylene by the partial oxidation of hydrocarbons
Assignee: Dow Chemical Co
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Filing: 1958-05-05
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Granted: 1960-07-12
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Elliott Jack
- 👤 Holmes H Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:02
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/78; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/925; Y10S585/949; Y10S585/953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A PROCESS FOR THE PRODUCTION OF ACETYLENE BY PARTIAL OXIDATION OF A PARAFFINIC HYDROCARBON WITH OXYGEN, WHICH COMPRISES SEPARATELY HEATING THE PARAFFINIC HYDROCARBON AND OXYGEN TO A TEMPERATURE OF AT LEAST 700*C. AND NOT MORE THAN 1200*C. INJECTING THE HEATED PARAFFINIC HYDROCARBON AND OXYGEN INTO A MIXING CHAMBER OF CIRCULAR CROSS SECTION AND A GIVEN DIAMETER, SAID HYDROCARBON STREAM BEING INJECTED IN SAID MIXING CHAMBER AS A HOLLOW FRUSTO-CONICAL SHAPED GASEOUS STREAM CONVERGING AT AN ANGLE OF 10* TO 45* AT A VELOCITY EQUAL TO AT LEAST 90 PERCENT OF SONIC VELOCITY AND SAID OXYGEN STREAM BEING INJECTED IN SAID MIXING CHAMBER AS A GASEOUS STREAM WITHIN THE HYDROCARBON STREAM AT A VELOCITY EQUAL TO AT LEAST 90 PERCENT OF SONIC VELOCITY, CONFINING THE INJECTED HYDROCARBON AND OXYGEN GASES IN THE MIXING CHAMBER TO PASS SAID GASES THROUGH THE MIXING CHAMBER AT A VELOCITY EQUAL
Claim 2
Dependent Claim
145 words
A PROCESS FOR THE PRODUCTION OF ACETYLENE BY PARTIAL OXIDATION OF A PARAFFINIC HYDROCARBON WITH OXYGEN, WHICH COMPRISES SEPARATELY HEATING THE PARAFFINIC HYDROCARBON AND OXYGEN TO A TEMPERATURE OF AT LEAST 700*C. AND NOT MORE THAN 1200*C. INJECTING THE HEATED PARAFFINIC HYDROCARBON AND OXYGEN INTO A MIXING CHAMBER OF CIRCULAR CROSS SECTION AND A GIVEN DIAMETER, SAID HYDROCARBON STREAM BEING INJECTED IN SAID MIXING CHAMBER AS A HOLLOW FRUSTO-CONICAL SHAPED GASEOUS STREAM CONVERGING AT AN ANGLE OF 10* TO 45* AT A VELOCITY EQUAL TO AT LEAST 90 PERCENT OF SONIC VELOCITY AND SAID OXYGEN STREAM BEING INJECTED IN SAID MIXING CHAMBER AS A GASEOUS STREAM WITHIN THE HYDROCARBON STREAM AT A VELOCITY EQUAL TO AT LEAST 90 PERCENT OF SONIC VELOCITY, CONFINING THE INJECTED HYDROCARBON AND OXYGEN GASES IN THE MIXING CHAMBER TO PASS SAID GASES THROUGH THE MIXING CHAMBER AT A VELOCITY EQUAL
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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |