Patent US4187079A successfully refreshed from Google Patents.
US4187079A
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Method for producing form coke
Assignee: Carl Still GmbH and Co KG
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Filing: 1978-09-11
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Granted: 1980-02-05
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Expires: 1998-09-11
Abstract
Abstract A method for the production of form coke, such as coke for use in the smelting industry as blast furnace coke and also in electro-metallurgical facilities, comprising, coking a high volatile coal containing at least 35% volatile constituents so as to remove the volatile constituents to form a non-baking base coal, mixing a plurality of fine grain coal components together, of which at least one of the components comprises said non-baking base coal and at least one other component comprises a baking bituminous coal so as to form a mixture of such coals, subjecting the mixture to a degassing operation using highly volatile coals, coking the degassed mixture and pressing the coke into briquettes.
Inventors
- 👤 Heinrich Weber
- 👤 Kurt Lorenz
- 👤 Horst Dungs
- 👤 Karl-Heinz Wollenhaupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:31
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/08; C10B57/00; C10B57/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
A method for the production of form coke comprising: subjecting a highly volatile coal containing at least 35% volatile constituents to a coking in order to remove a substantial amount of the volatile constituents to form a non-baking base coal; mixing a plurality of fine grain coal components together, of which at least one is said non-baking base coal and at least one other comprises a baking bituminous coal in order to form a coal mixture; subjecting the coal mixture to a degassing operation; coking the degassed mixture to form a coke; and pressing the resulting coke to form briquettes.
Claim 2
Independent Claim
100 words
A method for the production of form coke comprising: subjecting a highly volatile coal containing at least 35% volatile constituents to a coking in order to remove a substantial amount of the volatile constituents to form a non-baking base coal; mixing a plurality of fine grain coal components together, of which at least one is said non-baking base coal and at least one other comprises a baking bituminous coal in order to form a coal mixture; subjecting the coal mixture to a degassing operation; coking the degassed mixture to form a coke; and pressing the resulting coke to form briquettes.
Claim 3
Dependent Claim
33 words
A method for the production of form coke, as claimed in claim 1, wherein a bituminous coal having a low degree of internal condensation is used as the nonbaking, highly volatile coal component.
Claim 4
Dependent Claim
24 words
A method for the production of form coke, as claimed in claim 1, wherein brown coal is used as the nonbaking base coal component.
Claim 5
Dependent Claim
43 words
A method for the production of form coke, as claimed in claim 1, wherein the coke formed from the highly volatile coal component is used in a grain size of about 80% below 5 mm and is mixed with a baking bituminous coal.
Claim 6
Dependent Claim
34 words
A method for the production of form coke, as claimed in claim 1, wherein fine coke is heated to from 600° C. to 900° C. before it is mixed with said baking bituminous coal.
Claim 7
Dependent Claim
38 words
A method for the production of form coke, as claimed in claim 1, wherein the fine grained baking bituminous coal component is heated to from 200° C. to 350° C. before it is mixed with the fine coke.
Claim 8
Dependent Claim
53 words
A method for the production of form coke, as claimed in claim 1, wherein anthracite coal or brown coal in a grain size from 0 mm to 10 mm and in a quantity of from 10% to 40% relative to the nonbaking base coal component is added as an additional nonbaking coal component.
Claim 9
Dependent Claim
57 words
A method for the production of form coke, as claimed in claim 7, wherein the additional nonbaking coal component, namely, anthracite coal or brown coal, is brought into a grain size of from 0 mm to 10 mm and to a temperature of from 80° C. to 120° C. before being mixed with the other coal components.
Claim 10
Dependent Claim
41 words
A method for the production of form coke, as claimed in claim 7, wherein an additional, non-baking coal component, that is, anthracite or brown coal, is dried by the same hot gas flow by which the baking bituminous coal was heated.
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) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |