Patent US3241949A successfully refreshed from Google Patents.
US3241949A
Expired / Lapsed
US
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Method of producing molybdenum alloy compositions from ammoniacal solutions
Assignee: Viridian Inc Canada
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Filing: 1963-10-21
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Granted: 1966-03-22
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Kunda Wasyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:24
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
THE METHOD OF PRODUCING MOLYBDENUM ALLOY COMPOSITIONS WHICH COMPRISES THE STEPS OF: PREPARING AN AMMONIACAL AMMONIUM SULPHATE SOLUTION WHICH CONTAINS, IN SOLUTION, MOLYBDENUM AND AT LEAST ONE OTHER METAL SELECTED FROM THE GROUP CONSISTING OF SILVER, NICKEL, COBALT AND COPPER, ABOUT 1.5 TO ABOUT 2.0 MOLES OF FREE GRAMS PER LITRE OF AMMONIUM SULPHATE; PROVIDING IN SAID SOLUTION A NUCLEATION AGENT CAPABLE OF INITIATING THE REDUCTION OF SAID OTHER METAL; REACTING SAID SOLUTION WITH HYDROGEN AT A TEMPERATURE ABOVE ABOUT 250*F. AND UNDER A PARTIAL PRESSURE OF HYDROGEN ABOVE ABOUT 350 POUNDS PER SQUARE INCH TO CO-PRECIPITATE MOLYBDENUM AND SAID OTHER METAL AS AN INTIMATE MIXTURE OF COMPLEX MOLYBDENUM COMPOUND AND ELEMENTAL METAL IN POWDER FORM; SEPARATING AND RECOVERING THE RESULTING PRECIPITATE FROM SAID SOLUTION AND REACTING SAID PRECIPITATE AT A TEMPERAURE OF ABOUT 1750*F. WITH HYDROGEN TO REDUCE THE MOLYBDENUM COMPOUND TO MOLYBDENUM METAL AND EFFECT SUBSTANTIALLY COMPLETE ALLOYING OF SAID MOLYBDENUM METAL AND SAID OTHER METAL.
Claim 2
Independent Claim
158 words
THE METHOD OF PRODUCING MOLYBDENUM ALLOY COMPOSITIONS WHICH COMPRISES THE STEPS OF: PREPARING AN AMMONIACAL AMMONIUM SULPHATE SOLUTION WHICH CONTAINS, IN SOLUTION, MOLYBDENUM AND AT LEAST ONE OTHER METAL SELECTED FROM THE GROUP CONSISTING OF SILVER, NICKEL, COBALT AND COPPER, ABOUT 1.5 TO ABOUT 2.0 MOLES OF FREE GRAMS PER LITRE OF AMMONIUM SULPHATE; PROVIDING IN SAID SOLUTION A NUCLEATION AGENT CAPABLE OF INITIATING THE REDUCTION OF SAID OTHER METAL; REACTING SAID SOLUTION WITH HYDROGEN AT A TEMPERATURE ABOVE ABOUT 250*F. AND UNDER A PARTIAL PRESSURE OF HYDROGEN ABOVE ABOUT 350 POUNDS PER SQUARE INCH TO CO-PRECIPITATE MOLYBDENUM AND SAID OTHER METAL AS AN INTIMATE MIXTURE OF COMPLEX MOLYBDENUM COMPOUND AND ELEMENTAL METAL IN POWDER FORM; SEPARATING AND RECOVERING THE RESULTING PRECIPITATE FROM SAID SOLUTION AND REACTING SAID PRECIPITATE AT A TEMPERAURE OF ABOUT 1750*F. WITH HYDROGEN TO REDUCE THE MOLYBDENUM COMPOUND TO MOLYBDENUM METAL AND EFFECT SUBSTANTIALLY COMPLETE ALLOYING OF SAID MOLYBDENUM METAL AND SAID OTHER METAL.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |