US3850851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of a catalyst for oxidation of ammonia
Assignee: DEUTSCHE GOLD und SILBER SCHEIDEANSTALT DT
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Filing: 1972-08-21
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Granted: 1974-11-26
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Expires: 1992-08-21
Abstract
Abstract 1. A PROCESS FOR THE PRODUCTION OF A CATALYST SUITABLE FOR THE OXIDATION OF AMMONIA TO OXIDES OF NITROGEN WHICH ARE USED FOR THE PRODUCTION OF NITRIC ACID COMPRISING FORMING COBALT OXIDE DOPED WITH 0.1-10 ATOM PERCENT OF LITHIUM INTO SHAPE, THEN CALCINING IN AIR OR OXYGEN AT 300700*C. AND SUBSEQUENTLY TEMPERING AT 700-900*C. IN A REACTION GAS MIXTURE OF AIR AND 8-10 VOLUME PERCENT OF AMMONIA TO STABILIZE THE FORM.
Inventors
- 👤 E Koberstein
- 👤 K Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:39
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/20; C01B21/24; C01B21/26; C01B21/265; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/78; B01J37/00; B01J37/0009; B01J37/0018; B01J37/08; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2002/54; C01P2002/70; C01P2002/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE PRODUCTION OF A CATALYST SUITABLE FOR THE OXIDATION OF AMMONIA TO OXIDES OF NITROGEN WHICH ARE USED FOR THE PRODUCTION OF NITRIC ACID COMPRISING FORMING COBALT OXIDE DOPED WITH 0.1-10 ATOM PERCENT OF LITHIUM INTO SHAPE, THEN CALCINING IN AIR OR OXYGEN AT 300700*C. AND SUBSEQUENTLY TEMPERING AT 700-900*C. IN A REACTION GAS MIXTURE OF AIR AND 8-10 VOLUME PERCENT OF AMMONIA TO STABILIZE THE FORM.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE PRODUCTION OF A CATALYST SUITABLE FOR THE OXIDATION OF AMMONIA TO OXIDES OF NITROGEN WHICH ARE USED FOR THE PRODUCTION OF NITRIC ACID COMPRISING FORMING COBALT OXIDE DOPED WITH 0.1-10 ATOM PERCENT OF LITHIUM INTO SHAPE, THEN CALCINING IN AIR OR OXYGEN AT 300700*C. AND SUBSEQUENTLY TEMPERING AT 700-900*C. IN A REACTION GAS MIXTURE OF AIR AND 8-10 VOLUME PERCENT OF AMMONIA TO STABILIZE THE FORM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |