US3334974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of refractory compounds
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1964-08-03
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Granted: 1967-08-08
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Expires: 1984-08-03
Abstract
No abstract record available.
Inventors
- 👤 Fletcher John Molyneux
- 👤 Hyde Kenneth Robert
- 👤 Roberts Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:17
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/5805; C04B35/58064; C04B35/58078; C01; C01B; C01B21/00; C01B21/082; C01B21/0828; C01B25/00; C01B25/06; C01B33/00; C01B33/06; C01B35/00; C01B35/02; C01B35/04; C01G; C01G1/00; C01G1/12; C04B35/52; C04B35/56; C01P; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A TWO STAGE PROCESS FOR THE MANUFACTURE OF A REFRACTORY COMPOUND HAVING A NON-METALLIC PORTION SELECTED FROM THE GROUP CONSISTING OF NITROGEN, BORON, PHOSPHORUS, SILICON, AND SULFUR AND A METAL PORTION SELECTED FROM THE GROUP CONSISTING OF VANADIUM, TITAMIUM, THORIUM, NIOBIUM, ZIRCONIUM, BAFNIUM, TUNGSTEN, MOLYBDENUM, TANTALUM, URANIUM, PLUTOMIUM AND SILICON, SAID METAL AND NON-METAL PORTION BEING DIFFERENT, FROM AN OXIDE OF THE SAID METAL, SUCH PROCESS COMPRISING A FIRST STAGE WHEREIN THE SAID METAL OXIDE IS CONVERTED TO THE CORRESPONDING METAL CARBIDE AND COMPRISING CHARGING PARTICLES CONSISTING OF AN ADMIXTURE OF THE SAID METAL OXIDE WITH CARBON INTO A FLUIDISED BED REACTOR VESSEL CONSTRUCTED OF A REFRACTORY MATERIAL, FLUIDISING THE SAID PARTICLES WITH AN INERT GAS AND HEATING THE REACTOR VESSEL TO A FIRST REACTION TEMPERATURE TO FORM SAID METAL CARBIDE, AND A SECOND STAGE WHEREIN THE METAL CARBIDE FROM THE FIRST STAGE IS CONVERTED TO A SAID REFRACTORY COMPOUND OF THE SAID METAL AND COMPRISING EFFECTING FLUIDISING OF THE METAL CARBIDE IN A REACTOR VESSEL BY MEANS OF A FLUIDISING GAS CONTAINING THE NON-METALLIC PORTION OF THE REFRACTORY COMPOUND AND HEATING THE REACTOR VESSEL TO A SECOND REACTION TEMPERATURE.
Claim 2
Dependent Claim
190 words
A TWO STAGE PROCESS FOR THE MANUFACTURE OF A REFRACTORY COMPOUND HAVING A NON-METALLIC PORTION SELECTED FROM THE GROUP CONSISTING OF NITROGEN, BORON, PHOSPHORUS, SILICON, AND SULFUR AND A METAL PORTION SELECTED FROM THE GROUP CONSISTING OF VANADIUM, TITAMIUM, THORIUM, NIOBIUM, ZIRCONIUM, BAFNIUM, TUNGSTEN, MOLYBDENUM, TANTALUM, URANIUM, PLUTOMIUM AND SILICON, SAID METAL AND NON-METAL PORTION BEING DIFFERENT, FROM AN OXIDE OF THE SAID METAL, SUCH PROCESS COMPRISING A FIRST STAGE WHEREIN THE SAID METAL OXIDE IS CONVERTED TO THE CORRESPONDING METAL CARBIDE AND COMPRISING CHARGING PARTICLES CONSISTING OF AN ADMIXTURE OF THE SAID METAL OXIDE WITH CARBON INTO A FLUIDISED BED REACTOR VESSEL CONSTRUCTED OF A REFRACTORY MATERIAL, FLUIDISING THE SAID PARTICLES WITH AN INERT GAS AND HEATING THE REACTOR VESSEL TO A FIRST REACTION TEMPERATURE TO FORM SAID METAL CARBIDE, AND A SECOND STAGE WHEREIN THE METAL CARBIDE FROM THE FIRST STAGE IS CONVERTED TO A SAID REFRACTORY COMPOUND OF THE SAID METAL AND COMPRISING EFFECTING FLUIDISING OF THE METAL CARBIDE IN A REACTOR VESSEL BY MEANS OF A FLUIDISING GAS CONTAINING THE NON-METALLIC PORTION OF THE REFRACTORY COMPOUND AND HEATING THE REACTOR VESSEL TO A SECOND REACTION TEMPERATURE.
Claim 3
Dependent Claim
137 words
A ONE-STAGE PROCESS FOR THE PRODUCTION OF A REFRACTORY COMPOUND HAVING METALLIC AND NON-METALLIC PORTIONS, WHEREIN SAID METALLIC PORTION IS SELECTED FROM THE GROUP CONSISTING OF VANADIUM TITANIUM, THORIUM, NIOBIUM, ZIRCONIUM, HAFNIUM, TUNGSTEN, MOLYBDENUM, TANTALUM, URANIUM, PLUTONIUM AND SILICON AND SAID NON-METALLIC PORTION IS SELECTED FROM THE GROUP CONSISTING OF NITROGEN, SULFUR, PHOSPHORUS, SILICON AND BORON, SAID METALLIC AND NON-METALLIC PORTIONS BEING DIFFERENT: SAID PROCESS COMPRISING PLACING IN A REFRACTORY FLUIDISED BED REACTOR A CHARGE OF PARTICLES FORMED BY A MIXTURE OF CARBON WITH AN OXIDE COMPOUND CONTAINING SAID METALLIC PORTION; PASSING A FLUIDISING GAS THROUGH THE SAID PARTICLES AT A RATE SUFFICIENT TO CAUSE FLUIDISATION THEREOF, THE FLUIDISING GAS CONTAINING ONE OF THE SURFACES SELECTED FROM THE GROUP CONSISTING OF NITROGEN, SULPHUR, PHOSPHORUS, SILICON AND BORON-CONTAINING SUBSTANCES; AND HEATING THE REACTOR VESSEL TO A REACTION TEMPERATURE.
Claim 4
Dependent Claim
137 words
A ONE-STAGE PROCESS FOR THE PRODUCTION OF A REFRACTORY COMPOUND HAVING METALLIC AND NON-METALLIC PORTIONS, WHEREIN SAID METALLIC PORTION IS SELECTED FROM THE GROUP CONSISTING OF VANADIUM TITANIUM, THORIUM, NIOBIUM, ZIRCONIUM, HAFNIUM, TUNGSTEN, MOLYBDENUM, TANTALUM, URANIUM, PLUTONIUM AND SILICON AND SAID NON-METALLIC PORTION IS SELECTED FROM THE GROUP CONSISTING OF NITROGEN, SULFUR, PHOSPHORUS, SILICON AND BORON, SAID METALLIC AND NON-METALLIC PORTIONS BEING DIFFERENT: SAID PROCESS COMPRISING PLACING IN A REFRACTORY FLUIDISED BED REACTOR A CHARGE OF PARTICLES FORMED BY A MIXTURE OF CARBON WITH AN OXIDE COMPOUND CONTAINING SAID METALLIC PORTION; PASSING A FLUIDISING GAS THROUGH THE SAID PARTICLES AT A RATE SUFFICIENT TO CAUSE FLUIDISATION THEREOF, THE FLUIDISING GAS CONTAINING ONE OF THE SURFACES SELECTED FROM THE GROUP CONSISTING OF NITROGEN, SULPHUR, PHOSPHORUS, SILICON AND BORON-CONTAINING SUBSTANCES; AND HEATING THE REACTOR VESSEL TO A REACTION TEMPERATURE.
Claim 5
Dependent Claim
119 words
A SINGLE-STAGE PROCESS FOR THE MANUFACTURE OF A REFRACTORY COMPOUND HAVING A NON-METALLIC PORTION SELECTED FROM THE GROUP CONSISTING OF NITROGEN, BORON, PHOSPHORUS, SILICON AND SULFUR, AND A METALLIC PORTION SELECTED FROM THE GROUP CONSISTING OF VANADIUM, TITANIUM, THORIUM, NIOBIUM, ZIRCONIUM, HAFNIUM, TUNGSTEN, MOLYBDENUM, TANTALUM, URANIUM, PLUTOMIUM AND SILICON, SAID METAL AND NON-METAL PORTIONS BEING DIFFERENT FROM AN OXIDE CONTAINING SAID METALLIC PORTION, SUCH PROCESS COMPRISING CHARGING PARTICLES OF THE SAID OXID NTO A FLUIDISED BED REACTOR VESSEL CONSTRUCTED OF A REFRACTORY MATERIAL, FLUIDISING THE SAID PARTICLES IN THE SAID REACTOR VESSEL BY MEANS OF A FLUIDISING GAS CONTAINING THE NON-METALLIC PORTION OF THE REFRACTORY COMPOUND AND A CARBON-CONTAINING GAS, AND HEATING THE REACTOR VESSEL TO A REACTION TEMPERATURE.
Claim 6
Dependent Claim
119 words
A SINGLE-STAGE PROCESS FOR THE MANUFACTURE OF A REFRACTORY COMPOUND HAVING A NON-METALLIC PORTION SELECTED FROM THE GROUP CONSISTING OF NITROGEN, BORON, PHOSPHORUS, SILICON AND SULFUR, AND A METALLIC PORTION SELECTED FROM THE GROUP CONSISTING OF VANADIUM, TITANIUM, THORIUM, NIOBIUM, ZIRCONIUM, HAFNIUM, TUNGSTEN, MOLYBDENUM, TANTALUM, URANIUM, PLUTOMIUM AND SILICON, SAID METAL AND NON-METAL PORTIONS BEING DIFFERENT FROM AN OXIDE CONTAINING SAID METALLIC PORTION, SUCH PROCESS COMPRISING CHARGING PARTICLES OF THE SAID OXID NTO A FLUIDISED BED REACTOR VESSEL CONSTRUCTED OF A REFRACTORY MATERIAL, FLUIDISING THE SAID PARTICLES IN THE SAID REACTOR VESSEL BY MEANS OF A FLUIDISING GAS CONTAINING THE NON-METALLIC PORTION OF THE REFRACTORY COMPOUND AND A CARBON-CONTAINING GAS, AND HEATING THE REACTOR VESSEL TO A REACTION TEMPERATURE.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |