US3104945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing hydrogen cyanide
Assignee: EIDP Inc
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Filing: 1961-07-19
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Granted: 1963-09-24
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 William R Jenks
- 👤 Richard M Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:39
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/02; C01C3/0208; C01C3/0212; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN THE MANUFACTURE OF HYDROGEN CYANIDE BY THE PLATINUM METAL CATALYST REACTION OF A MIXTURE OF GASEOUS REACTANTS CONSISTING ESSENTIALLY OF AIR, AMMONIA AND METHANE, THE STEPS COMPRISING MIXING SAID REACTANTS IN SUCH PROPORTION THAT THE VOLUME RATIO OF METHANE GAS TO AMMONIA LIES IN THE RANGE 0.8:1 TO 1.2:1 AND THE QUANTITY OF AIR IS SUCH THAT THE OXYGEN CONTENT OF THE SAID MIXTURE IS IN THE RANGE FROM 25 TO 40% OF THE AMOUNT THAT WOULD BE REQUIRED FOR TOTAL OXIDATION OF THE AMMONIA AND METHANE CONTAINED THEREIN, PREHEATING SAID MIXTURE TO A TEMPERATURE IN THE RANGE 400* TO 525*C. AND PASSING THE PREHEATED MIXTURE OVER A PLATINUM METAL CATALYST.
Claim 2
Dependent Claim
112 words
IN THE MANUFACTURE OF HYDROGEN CYANIDE BY THE PLATINUM METAL CATALYST REACTION OF A MIXTURE OF GASEOUS REACTANTS CONSISTING ESSENTIALLY OF AIR, AMMONIA AND METHANE, THE STEPS COMPRISING MIXING SAID REACTANTS IN SUCH PROPORTION THAT THE VOLUME RATIO OF METHANE GAS TO AMMONIA LIES IN THE RANGE 0.8:1 TO 1.2:1 AND THE QUANTITY OF AIR IS SUCH THAT THE OXYGEN CONTENT OF THE SAID MIXTURE IS IN THE RANGE FROM 25 TO 40% OF THE AMOUNT THAT WOULD BE REQUIRED FOR TOTAL OXIDATION OF THE AMMONIA AND METHANE CONTAINED THEREIN, PREHEATING SAID MIXTURE TO A TEMPERATURE IN THE RANGE 400* TO 525*C. AND PASSING THE PREHEATED MIXTURE OVER A PLATINUM METAL CATALYST.
References Cited (Backward Citations)
CA531492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |