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| Number | Title | Issue Date |
| 7220293 | Thermal synthesis production of steel A process for producing liquid steel is disclosed. Carbon monoxide and oxygen may be combusted in a high temperature reactor. Iron and iron oxide materials, along with scrap steel if desired, may be placed in the high temperature reactor. Carbon dioxide produced in ... | 05/22/2007 |
| 7011299 | Liquid vapor delivery system and method of maintaining a constant level of fluid therein In accordance with the present invention, a method and system is described for controlling the delivery of vapor from a bubbler containing a supply of chemical fluid through which a carrier gas is bubbled and from which bubbler vapors are delivered in a vapor stream... | 03/14/2006 |
| 5601632 | Method and an apparatus for the purification of residual products from flue gas purification plants A method and an apparatus for the purification of residual products from flue gas purification plants. Between a wet-desulphurization plant (1) for flue gas and an associated waste water-treatment plant (2) for the purification of the water used in the we... | 02/11/1997 |
| 5127941 | Process and device for separating the constituents of an alloy The invention relates to a process for separating the constituents of an alloy, especially an alloy comprising a refractory base metal and at least one nonrefractory additive metal, which consists in: heating said alloy by means for preferably continuous melti... | 07/07/1992 |
| 4917773 | Process for introducing zirconium tetrachloride, hafnium tetrachloride and mixtures thereof into a column for the continuous extractive distillation under pressure of said chlorides The process and the device according to the invention relate to the introduction, at a stable, known flow rate, of sublimable tetrachloride into a column for continuous extractive distillation under pressure of the chlorides. The sublimable tetrachloride ... | 04/17/1990 |
| 4850574 | Apparatus for cooling and cleaning producer gas and top gas An apparatus for producing cooling gas for a producer gas produced in a melt-down gasifier and surplus gas usable in an appropriate manner by cooling and cleaning at least part of the producer gas and the top gas of an iron ore reduction unit are proposed... | 07/25/1989 |
| 4702902 | Handling of by-product gases from a silicon furnace What is disclosed is an improvement in a process for the carbothermic reduction of silicon dioxide to form silicon, the improvement comprising (a) contacting the by-produced gases from the silicon furnace with a cooling medium such as a vaporizing liquifi... | 10/27/1987 |
| 4592784 | Water seal for fumeless strand pickling system A device and method are set forth for continuous, fumeless treating of products like steel wire. The device includes a generally closed tank having an inlet opening to pass the wire through a passageway to exit the tank at an outlet opening. Intermediate ... | 06/03/1986 |
| 4540162 | Gas-scrubbing and metal-refining process and system A metal-refining process and a corresponding system characterized by being adapted to minimize the health hazard by appropriate purification of the gases or vapor products resulting from acid action on a metal compound. This metal refining features the us... | 09/10/1985 |
| 4245569 | Scrubber bypass system A scrubber bypass damper comprises a plate pivotally-mounted to a shaft running across the bypass duct transverse to gas flow. The damper plate self-actuates and rotates about the shaft in response to any pressure differential established across it. A scr... | 01/20/1981 |
| 3988421 | Gas cleaning process and equipment A process and an apparatus for the cleaning of combustible gases, particularly gases emitted in steel making plants, in which the gases are passed through a collecting duct together with additional air at conditions such as to cause the combustion of the ... | 10/26/1976 |
| 3976454 | Exhaust system for steel-making plant Dust-laden waste gases from a converter and from ancillary equipment are exhausted by respective blowers through a first and a second duct to a main and a secondary scrubbing station whence the purified gases escape through respective chimneys. The first ... | 08/24/1976 |
