| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 09/25/1984 | CA1174855A1 Method of producing molten metal consisting mainly of manganese and iron |
| 09/19/1984 | EP0118929A1 Process for transporting particulate material |
| 09/11/1984 | CA1174053A1 Method for estimating geographical distribution of cohesive zone in blast furnace |
| 08/29/1984 | EP0037832B1 Coal-water slurry and method for its preparation |
| 08/22/1984 | EP0116185A1 Apparatus and method for feeding pulverised coal into an air line to a blast furnace |
| 08/21/1984 | US4466825 Process for blast furnace operation |
| 08/21/1984 | CA1172855A1 Process for injecting a reducing agent including ash- bearing bituminous coal into the hearth of a blast furnace |
| 08/08/1984 | EP0114916A2 Method of distributing and transporting powdered or granular material |
| 06/27/1984 | EP0112084A1 Improvements in or relating to blast furnace apparatus |
| 06/21/1984 | WO1984001963A3 Process for minimizing the decomposition by reduction of iron ores and agglomerates of iron ores used as load in a high furnace |
| 06/19/1984 | US4455165 Increasing blast temperature |
| 06/12/1984 | US4453703 Sintering machine |
| 06/12/1984 | US4453473 Plant for supplying heating systems with solid flowable fuel |
| 05/29/1984 | US4451184 Apparatus and method for feeding pulverized hydrocarbonaceous solids into a high pressure reactor |
| 05/24/1984 | WO1984001963A2 Process for minimizing the decomposition by reduction of iron ores and agglomerates of iron ores used as load in a high furnace |
| 05/16/1984 | EP0108505A1 Apparatus for conveying particulate material from a pressurized container |
| 05/16/1984 | EP0108501A1 A method for producing a carbonaceous solid reductant for direct reduction of iron ore |
| 05/16/1984 | EP0108319A2 Injection arrangement of dosed quantities of pulverulent materials in a pneumatic propulsion fluid and application to the injection of solid fuels into a shaft furnace |
| 05/01/1984 | USRE31572 Pulverized fuel delivery system for a blast furnace |
| 04/17/1984 | US4443251 Method of operating a blast furnace |
| 04/17/1984 | CA1165568A1 Multi-purpose zone controlled blast furnace and method of producing hot metal, gases and slags |
| 04/17/1984 | CA1165561A1 Blast furnace control method |
| 04/10/1984 | US4441434 Apparatus for dispensing particulate matter |
| 03/20/1984 | US4437796 Pneumatic transport procedure and apparatus |
| 03/13/1984 | US4436552 Separation of ore fines, adding next to walls to protect lining |
| 03/13/1984 | US4436459 Pneumatic stream divider |
| 02/28/1984 | CA1162962A1 Installation for transporting fine-grained material |
| 02/21/1984 | US4432790 Blast furnace control method |
| 02/15/1984 | EP0100601A1 A method for activating petroleum coke |
| 01/31/1984 | US4428769 Process for injecting a reducing agent including ash-bearing bituminous coal into the hearth of a blast furnace |
| 01/10/1984 | US4425659 Metal oxide reduction furnace |
| 01/10/1984 | CA1160047A1 Method and device for continuous supply of lumps of material to a shaft |
| 12/20/1983 | US4421553 Process for operating a blast furnace |
| 12/06/1983 | US4419186 Process for making strong metallurgical coke |
| 11/30/1983 | EP0095035A2 Process for supplying coal gas to metal works |
| 11/29/1983 | CA1157661A1 Process and installation for metering and for transport of solid material by a pneumatic passage into a pressurized chamber |
| 11/22/1983 | US4416666 Low viscosity, high solids content; stability |
| 11/08/1983 | US4413935 Flow splitter for dividing a stream of pulverulent material into multiple streams |
| 11/01/1983 | US4412674 High-temperature reduced iron production |
| 10/25/1983 | CA1155665A1 Use of prereduced ore in a blast furnace |
| 10/12/1983 | EP0090923A1 Method for the pneumatic emptying of a pressure vessel filled with powdered material |
| 10/11/1983 | CA1154966A1 Process for blast furnace operation |
| 09/27/1983 | CA1154251A1 Process and installation for the injection of dosed quantities of pulverulent materials by pneumatic means into an enclosure subject to variable pressure and application thereof to a shaft furnace |
| 09/06/1983 | US4402895 Compaction of carbon dust and a binder |
| 09/06/1983 | US4402275 Process for the continuous blowing of fine-particled reducing agents consisting predominantly of mineral coal into a shaft furnace |
| 08/31/1983 | EP0087353A1 Process for executing metallurgical reductions and product used therefor |
| 08/23/1983 | US4400206 Process for estimating particle size segregation of burden layer in blast furnace top |
| 08/09/1983 | US4397691 Method for producing Fe-B molten metal |
| 08/03/1983 | EP0084559A1 Process for preparing a coal-water slurry. |
| 07/26/1983 | US4395166 Fluidization and distribution |
| 07/26/1983 | CA1150505A1 Method and apparatus of injection of solid fuels into a shaft furnace |
| 07/19/1983 | CA1150056A1 Iron ore pellets containing mgo |
| 07/12/1983 | US4392438 Coal transport system |
| 07/05/1983 | CA1149135A1 Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures |
| 06/22/1983 | EP0081622A2 Method and apparatus for distributing powdered particles |
| 06/21/1983 | US4389244 Method of supplying pulverized fuel mixture to blast furnace tuyeres |
| 06/15/1983 | EP0081448A1 Process and apparatus for refining a metal bath containing solid cooling materials |
| 06/14/1983 | CA1147964A1 Process for reducing spent gas generated in the production of sponge iron |
| 05/25/1983 | EP0079444A1 Apparatus for controlling the capacity and charge of a distribution vessel for pulverized materials |
| 05/16/1983 | EP0084559A4 Process for preparing a coal-water slurry. |
| 05/04/1983 | EP0077919A1 Process for pneumatically injecting dosed quantities of finely divided solids into a vessel maintained at a variable pressure, and the application of this process to shaft furnaces |
| 05/03/1983 | US4381938 Multi-purpose zone controlled blast furnace and method of producing hot metal, gases and slags |
| 05/03/1983 | US4381897 Installation for transporting fine-grained material |
| 04/28/1983 | WO1983001460A1 Method of operating a blast furnace |
| 04/26/1983 | CA1145141A1 Particle size distribution in coal slurry |
| 04/05/1983 | US4378994 Method for estimating geographical distribution of cohesive zone in blast furnace |
| 03/16/1983 | EP0073793A1 Blast furnace injection of overheated reducing gases |
| 03/08/1983 | CA1142352A1 Injection of hot gases into shaft furnace |
| 02/22/1983 | CA1141549A1 Production for reducing gas for furnace injection |
| 02/17/1983 | WO1983000501A1 Coal-water slurry |
| 02/15/1983 | US4373451 Apparatus and method for feeding pulverized solid fuel to a burner |
| 02/08/1983 | CA1140751A1 Solid fuel fired kiln |
| 01/18/1983 | US4368678 Injection of pulverized material into a pressurized furnace |
| 01/18/1983 | CA1139567A1 Blast-furnace operation method |
| 01/12/1983 | EP0069637A2 Method and device for pulverizing a solid fuel |
| 01/11/1983 | US4367685 Process and apparatus for precisely metering quantities of granular or pulverulent solids |
| 01/05/1983 | EP0068115A2 Flow splitter for dividing a stream of pulverulent material into multiple streams |
| 01/04/1983 | US4367091 Fired iron-ore pellets having at least two different precipitated slag phases and process for producing the same |
| 12/14/1982 | US4363656 Injection of hot gases into shaft furnace |
| 12/14/1982 | US4363655 Method for operating blast furnace |
| 12/14/1982 | US4363654 Production of reducing gas for furnace injection |
| 12/14/1982 | US4363470 Gas-entrained particulate feed system |
| 11/30/1982 | CA1136680A1 Method of transporting and storing mixed fuel and plant therefor |
| 11/23/1982 | CA1136066A1 Method and apparatus for controlling the proportions of the atmospheric constituents oxygen, nitrogen, carbon dioxide, and water-content in reaction processes in the metallurgical field |
| 10/26/1982 | US4356027 Iron ore pellets containing magnesium oxide |
| 10/26/1982 | CA1134141A1 Method of controlling the heat balance in a shaft-type metallurgical furnace |
| 10/19/1982 | US4354669 Apparatus for regulating the quantities and percentages of the gaseous constituents of oxygen, nitrogen, carbon dioxide and water in reaction processes in metallurgical applications |
| 09/16/1982 | WO1982003091A1 Blast furnace injection of overheated reducing gases |
| 09/15/1982 | EP0059904A1 Plant for feeding coal to metallurgical processing vessels with a plurality of blow-in sites, and method of operating the plant |
| 08/24/1982 | US4345939 Method for providing oxygen enhanced air for use in metallurgical processes |
| 08/17/1982 | CA1129655A1 Process for injecting brown coal or lignite into a blast furnace |
| 07/27/1982 | CA1128590A1 Method and apparatus for producing a solid-section ingot by electroslag remelting |
| 06/29/1982 | US4337030 Solid fuel fired kiln |
| 06/15/1982 | CA1125505A1 Fabricated tuyere |
| 04/20/1982 | US4325312 Method and installation of injection of solid fuels into a shaft furnace |
| 03/24/1982 | EP0047963A1 Method for the continuous introduction into a blast furnace of a reducing agent containing coke with cinder contents |
| 03/17/1982 | EP0047314A1 Carbonaceous fines in an oxygen-blown blast furnace |
| 03/10/1982 | EP0047026A2 Method and apparatus for pneumatically purging a rotating shaft exposed to pulverised particles |
| 03/10/1982 | EP0037832A4 Coal-water slurry and method for its preparation. |
| 02/23/1982 | US4316741 Blast furnace process employing exchange fuel gas |