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| Number | Title | Issue Date |
| 7470391 | Method and unit for continuously producing metal microparticle The producing unit for continuously producing metal microparticles formed of a multicomponent alloy accompanied by the generation of a byproduct gas through an early reaction of the formation of the metal particles comprises a first mixing unit for continuously supp... | 12/30/2008 |
| 7240717 | Multiple ignition source exothermic reaction mold device A multiple ignition source exothermic reaction mold device. The mold device includes a crucible in a block with an open top for receiving exothermic reaction powder. A lid covering the open top has an opening therethrough. A receptacle in the lid is in communication... | 07/10/2007 |
| 7144447 | Method and device for treating particulate material A process and apparatus for reducing material in particle form in a fluidization zone and at elevated temperature, in particular for reducing fine ore, the particle material being held in the fluidization zone by a treatment gas which flows upward from below. Materi... | 12/05/2006 |
| 7043921 | Tube cooled combustor An innovative cooling tube assembly is disclosed for use in cooling the liner of a combustor in a gas turbine engine. Each cooling tube has a serpentine shape that conforms to the contour of the liner as the tube extends from one end of the combustor to the other to... | 05/16/2006 |
| 6993856 | Apparatus for producing powder from biomaterials A jet spouted fluidized bed drier is described in which the bottom half of the drier chamber comprises a first lower conical part, and the top half of the drier chamber comprises a second upper conical part surrounding a conical grid located near to the top end of t... | 02/07/2006 |
| 6767382 | Aluminium processing apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross An apparatus for separating molten aluminium from a mixture of molten aluminium and aluminium dross includes a table for supporting an insulated crucible containing the mixture of molten aluminium and aluminium dross. A rotatable frame supports a plurality of tines ... | 07/27/2004 |
| 6602322 | High temperature metal recovery process An improved method and apparatus for recovering metal values from Electric Arc Furnace dust, particularly zinc and iron values, by mixing EAF dust and carbonaceous fines to form a particulate mixture; heating the mixture at a sufficient temperature and fo... | 08/05/2003 |
| 6585798 | Fluidized bed reactor for preventing the fine iron ore from sticking therein and method thereof A smelting reduction apparatus which separates exhaust gas, which is exhausted from a melter-gasifier or a fluidized bed reactor, into dusts and reducing gas to supply them to each fluidized bed reactor respectively is disclosed, in which the smelting red... | 07/01/2003 |
| 6491738 | 2-stage fluidized bed type fine iron ore reducing apparatus, and reducing method using the apparatus A two-stage fluidized bed reducing apparatus and a reducing method for fine iron ore of a wide particle size distribution with an increased degree of utilization of the reducing gas. Fine iron particles dropping through the holes of a gas distributor can ... | 12/10/2002 |
| 6379421 | Method and apparatus removing undesirable metals from iron-containing materials The present invention relates to a method and apparatus for separating undesired toxic metals, such as Zn, Pb and Cd, from iron-containing materials by: sintering a mixture of such materials (typically including EAF dust and mill scale) with carbonaceous ... | 04/30/2002 |
| 6235082 | Process for producing liquid metal and facilities for carrying out the process With a method for producing liquid metal from charging substances containing ore and of fluxes, the ore is directly reduced to sponge metal in at least one reduction zone (5, 7, 8), the sponge metal is melted along with fluxes in a melt-down gasifying zon... | 05/22/2001 |
| 6224650 | Apparatus for manufacturing molten iron by using calcination furnace, and manufacturing method therefor An apparatus for manufacturing molten iron by using a calcination furnace, and a manufacturing method therefor are disclosed. A high temperature reducing gas (1000 to 1100° C.) from a melter gasifier is used as a calcination heat in a calcination furnace... | 05/01/2001 |
| 6051182 | Apparatus and process for the direct reduction of iron oxides A separator for use in a direct reduction reactor comprises an elongated tubular housing having a cooling chamber for receiving a cooling medium for cooling the internal wall surface of the separator contacted by metallized iron fines.... | 04/18/2000 |
| 6042776 | Apparatus for recovering zinc oxide from dust A method for recovering zinc oxide comprises the steps of: agglomerating a dust; charging the agglomerate to a molten iron in a melting furnace; collecting a dust generated from the melting furnace; recycling a part of the collected dust and recovering an... | 03/28/2000 |
| 6030432 | Process for reducing ore fines and arrangement for carrying out the process In a process for the reduction of fine ore by reducing gas in the fluidized bed method, the following characteristic features are realized in order to achieve a uniform and even degree of metallization at optimum utilization of the reducing gas and while ... | 02/29/2000 |
| 5961812 | Process and gaseous effluent-collection device for changing spent anodes of pots for electrolysis of aluminum A process for changing spent anodes while recovering the majority of the gaseous compounds evolved by the spent anodes and by the bath crust removed from the electrolytic pots during the cooling phase uses an effluent-collection device for electrolytic po... | 10/05/1999 |
| 5879618 | Apparatus for treating fine ore An apparatus for treating fine ore in which fine ore is dried by aid of a hot drying gas flowing around the ore particles. After having flown around the ore particles, the drying gas is purified while releasing entrained dust ore particles. The dust ore p... | 03/09/1999 |
| 5853453 | Method of processing iron-containing mettalurgical residual substances as well as arrangement for carrying out said method In a method of processing iron-containing metallurgical residual substances, offgases containing iron-containing particles are washed out in a wet process and separated in the form of sludge. The sludge is then dehydrated and agglomerated; subsequently, t... | 12/29/1998 |
| 5787108 | Exhaust device for electric arc furnaces and relative method An exhaust device to suck in the fumes in an electric arc furnace (11) fed either by direct or alternating current. The furnace (11) comprises a crown (20) with at least one aperture (19) to introduce and position the electrodes (12) associated with a cup... | 07/28/1998 |
| 5762682 | Method and apparatus for processing ferrous materials In steel-making, there are conflicting processing requirements at different stages of the process. The method and apparatus of the invention creates different processing conditions at different stages of the process. Molten ferrous material (2) is stirred... | 06/09/1998 |
| 5529291 | Circulating fluidized bed direct reduction system A method and apparatus for producing direct reduced iron from iron oxide fines. The iron oxide raw material is conducted through a series of circulating fluidizable beds in which the fluidizing gas is a strong reducing gas mixture, which allows intimate c... | 06/25/1996 |
| 5527019 | Device and method for cleaning a filter The invention relates to a device and a method for cleaning a filter (7) disposed between a chamber contaminated with particles and a pump station. Herein a feedline (21) for oxygen or for an oxygen/inert gas mixture to the filter (7) is provided which is... | 06/18/1996 |
| 5489085 | Waste-gas piping for a filter dust melting furnace In a filter dust melting furnace, the waste gases occurring in the interior (9) of the furnace are conducted outward through a waste-gas line (5) in the furnace top. Provided in the course of the waste-gas line is a quench (20) for the abrupt cooling of t... | 02/06/1996 |
| 5437705 | Device and process for the recovery of cadmium and nickel A process and device for recovering cadmium and nickel metals from Ni-Cd battery and processing scrap material containing nickel, cadmium, iron and other substances are disclosed. The process includes depositing the scrap material in a furnace and adding ... | 08/01/1995 |
| 5386974 | Apparatus for treating gases and particulate solids in a fluid bed A method for treating gases and solids in a fluid bed, the fluid bed reactor substantially comprising, regarded downstream, a mixing chamber, a riser pipe and a cyclone with a solids return pipe to the mixing chamber, the gases being introduced into the m... | 02/07/1995 |
| 5382413 | Safety module for hydrogen generating reactors A reactor provided with a gas-safety device/module therefor comprises (i) a reaction vessel having an open upper end, (ii) demisting means engaging and at least partially closing off the open upper end of such reaction vessel, and situated to traverse the... | 01/17/1995 |
| 5374298 | Copper smelting process There is disclosed a copper smelting process. At first, blister copper is produced in a blister copper-producing facility. Then, the blister copper is caused to flow through blister copper launders into one of anode furnaces, and refined into copper of hi... | 12/20/1994 |
| 5259594 | Hot dust recycling apparatus A process for recycling hot dust from a gasifier or melt-down gasifier by means of a hot gas cyclone separator integrated into a pipe system is described, together with the associated apparatus. The hot dust from the hot gas cyclone separator is supplied ... | 11/09/1993 |
| 5259863 | Method and apparatus for the incineration of garbage and refuse A garbage incinerator is provided with a system for collecting the grate ash, the boiler ash and the fly ash resulting from the incineration and the collected residue is fed to a melting furnace from which the metal and metal compounds are recovered in th... | 11/09/1993 |
| 5246585 | Treatment of wastewater A wastewater treatment process 100 comprises passing wastewater through an anaerobic reaction zone 12 so that organic matter in the wastewater is subjected to anaerobic biological degradation. Wastewater from the anaerobic reaction zone is passed through ... | 09/21/1993 |
| 5246485 | Method and apparatus for preventing fume production when transporting molten metal from a metallurgical vessel to casting vessels It is proposed, in the case of at least one transport and discharge runner installed at a tapping orifice of the metallurgical furnace and a transfer station having a swivel or tilting runner in which the molten metal flows from the discharge runner by wa... | 09/21/1993 |
| 5238486 | Method and furnace for production of liquid iron This non-blast process for the production of pig iron, cast iron, steel melt and nearly pure iron is carried out in a single furnace based on a tank-type design. Said types of iron melt can be produced in such single furnace individually or simultaneously... | 08/24/1993 |
| 5221512 | Apparatus for preheating and removing organic materials from scrap iron This method of preheating scrap iron mixed with plastic, rubber and resinous, i.e. organic, materials and intended for electric furnaces, in particular electric arc furnaces, is characterized by transforming the plastic, rubbery or resinous and like mater... | 06/22/1993 |
| 5114474 | Arrangement and method for introducing waste material into a molten slag A method and device for the economic and environmentally safe disposal of waste material and molten slag from a cupola furnace comprises admixing the waste material with either molten slag or granulated slag so as to form a homogeneous mixture of the wast... | 05/19/1992 |
| 5104096 | Smelting apparatus for making elemental silicon and alloys thereof Smelting apparatus for use in making elemental silicon and alloys thereof is disclosed. The apparatus includes an electrometallurgical furnace having a body which includes a reactor external to the body which includes carbonaceous reductant.... | 04/14/1992 |
| 5098070 | Furnace atmosphere reforming catalystic agitator A gas agitator for reforming a furnace atmosphere in a continuous heat treatment furnace. Rotary vanes of the agitator induces the furnace atmosphere toward the center of rotation of the vanes, due to a negative pressure produced by the rotation of vanes.... | 03/24/1992 |
| 5093103 | Process for separating off poisonous volatile chemical compounds from a mixture of solid particles having a particle size of up to 200 microns A process for separating off poisonous volatile chemical compounds from a mixture (7) of solid particles having a particle size of up to 200 μm, the mixture being brought continuously or intermittently at an average rate of 5° to 200° C./min in zones o... | 03/03/1992 |
| 5074530 | Apparatus for smelting reduction of iron ore The invention provides an apparatus for smelting reduction of iron ore which contains (1) at least one preheat and prereduction furnace which preheats and prereduces iron ore to a prereduction degree of less than 30%; (2) a smelting reduction furnace into... | 12/24/1991 |
| 5013355 | Method and apparatus for producing matte and/or metal Method and apparatus for producing matte and/or metal from sulphidic fine-grained ore or ore concentrate. The ore or ore concentrate is smelted in a flame chamber in such a way that at least part of the solid material in the flame chamber melts and flows ... | 05/07/1991 |
| 5004496 | Method and apparatus for treatment of dust recovered from off gases in metallurgical processes The method for treating the dust entails the following steps: (a) supplying a combination of dust, a reducing agent and flux to a gastight electrothermic smelting furnace, (b) smelting, reducing and volatilizing certain metals in the smelting furnace, (c) tapp... | 04/02/1991 |
