US3153586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slag coated ore compacts and process for making the same
Assignee: Elkem Metals Co LP
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Filing: 1960-05-06
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Granted: 1964-10-20
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Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Fritz O Wienert
- 👤 Anthony F Nasiadka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:49
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; C22B1/00; C22B1/14; C22B1/24; C22B1/2406; C22B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A METHOD OF PRODUCING COATED COMPACTS FOR USE IN REDUCTION PROCESSES COMPRISING PREPARING AN INTIMATE ADMIXTURE OF AT LEAST ONE METALLIC OXIDE, THE METAL OF SAID METALLIC OXIDE BEING SELECTED FROM THE GROUP CONSISTING OF IRON, TITANIUM, AND CHROMIUM AND A CARBONACEOUS REDUCING AGENT, SAID CARBONACEOUS REDUCING AGENT BEING IN EXCESS OF THAT AMOUNT REQUIRED TO REACT STOICHIOMETRICALLY WITH THE OXYGEN OF SAID SELECTED METAL OXIDE TO FORM CARBON MONOXIDE, SAID EXCESS BEING SUFFICIENT TO CONVERT A LEAST A SUBSTANTIAL PORTION OF SAID SELECTED METALS TO A CARBIDE OF SAID SELECTED METAL; COMPACTING SAID ADMIXTURE TO FORM A CORE; AND PROVIDING SAID CORE WITH A COATING OF AT LEST ONE ACID SLAG-FORMING CONSTITUENT AND AT LEAST ONE BASIC SLAG-FORMING CONSTITUENT TO FORM A COATED COMPACT, SAID SLAG FORMING CONSTITUENTS BEING CAPABLE OF AT LEAST PARTIAL FUSION BEFORE THE CORE REACTION IS COMPLETED AND BEING SUFFICIENTLY VISCOUS TO PRECLUDE SUBSTANTIAL IMPREGNATION OF SAID CORE AT THE FUSTION TEMPERATURE OF SAID SLAG-FORMING CONSTITUENTS AND AT THE TEMPERATURE OF SAID CORE REACTION.
Claim 2
Independent Claim
169 words
A METHOD OF PRODUCING COATED COMPACTS FOR USE IN REDUCTION PROCESSES COMPRISING PREPARING AN INTIMATE ADMIXTURE OF AT LEAST ONE METALLIC OXIDE, THE METAL OF SAID METALLIC OXIDE BEING SELECTED FROM THE GROUP CONSISTING OF IRON, TITANIUM, AND CHROMIUM AND A CARBONACEOUS REDUCING AGENT, SAID CARBONACEOUS REDUCING AGENT BEING IN EXCESS OF THAT AMOUNT REQUIRED TO REACT STOICHIOMETRICALLY WITH THE OXYGEN OF SAID SELECTED METAL OXIDE TO FORM CARBON MONOXIDE, SAID EXCESS BEING SUFFICIENT TO CONVERT A LEAST A SUBSTANTIAL PORTION OF SAID SELECTED METALS TO A CARBIDE OF SAID SELECTED METAL; COMPACTING SAID ADMIXTURE TO FORM A CORE; AND PROVIDING SAID CORE WITH A COATING OF AT LEST ONE ACID SLAG-FORMING CONSTITUENT AND AT LEAST ONE BASIC SLAG-FORMING CONSTITUENT TO FORM A COATED COMPACT, SAID SLAG FORMING CONSTITUENTS BEING CAPABLE OF AT LEAST PARTIAL FUSION BEFORE THE CORE REACTION IS COMPLETED AND BEING SUFFICIENTLY VISCOUS TO PRECLUDE SUBSTANTIAL IMPREGNATION OF SAID CORE AT THE FUSTION TEMPERATURE OF SAID SLAG-FORMING CONSTITUENTS AND AT THE TEMPERATURE OF SAID CORE REACTION.
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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |