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| Number | Title | Issue Date |
| 7618582 | Continuous steel production and apparatus A process for continuous refining of steel via multiple distinct reaction vessels for melting, oxidation, reduction, and refining for delivery of steel continuously to, for example, a tundish of a continuous caster system, and associated apparatus. ... | 11/17/2009 |
| 7302996 | Feed device for feeding molten metal into a crystallizer A drop feeder (1) for feeding molten metal into an ingot mould (15) comprises a distributor (3) having a substantially prismatic shape, with one of the faces open, in which the inside of the distributor comprises three tanks (4, 5, 6), se... | 12/04/2007 |
| 7147823 | High temperature cooling system and method A method for cooling a heat source, a method for preventing chemical interaction between a vessel and a cooling composition therein, and a cooling system. The method for cooling employs a containment vessel with an oxidizable interior wall. The interior wall is oxid... | 12/12/2006 |
| 7037462 | Overflow transfer furnace and control system for reduced oxide production in a casting furnace An apparatus for transferring molten metal from a melting furnace to a casting furnace is provided. A sensing and control system for the transfer of molten metal from a transfer furnace to a casting furnace is also described. The combination of the transfer apparatu... | 05/02/2006 |
| 6096110 | Method for cleaning slag in an electric furnace The invention relates to a method for cleaning slag, created in metallurgical processes of non-ferrous metals, in an electric furnace, and particularly the method is related to a semi-continuous cleaning process. According to the novel method, the electri... | 08/01/2000 |
| 5925165 | Process and apparatus for the 3-stage treatment of solid residues from refuse incineration plants In a method for processing solid residues from refuse incineration plants the slag is melted and heavy metals from the melt (16) are separated for reutilization. The slag is directly transferred from the refuse incineration plant into a first heating cham... | 07/20/1999 |
| 5398915 | Apparatus for continuous copper smelting There is disclosed an apparatus for smelting copper which includes a smelting furnace, a separating furnace, a converting furnace, and launders connecting these furnaces in series. In the smelting furnace, copper concentrate is melted and oxidized to prod... | 03/21/1995 |
| 5346531 | Slag separator An apparatus and method are disclosed for receiving molten slag and molten metal or alloy resulting from the smelting of ore from a cupola and for separating the slag from the molten metal or alloy. The slag separator of the present invention includes a r... | 09/13/1994 |
| 5346528 | Continuous automatic steel making method and facility The present invention provides a continuous automatic steel making method and a facility which make it possible to make steel continuously and automatically by systematizing all steps of the steel making process. Steel is tapped from an electric furnace w... | 09/13/1994 |
| 5336296 | Method of obtaining steel in a liquid bath and the device to carry it out The proposed method is characterized in that the liquid bath is constituted by the melt of low carbon steel and molten slag. Oxidation and reducing zones are created through which, along a closed path on the surface of the molten low-carbon steel, is circ... | 08/09/1994 |
| 5217527 | Process for continuous copper smelting There is disclosed a process for continuous copper smelting. At first, a smelting furnace, a separating furnace, a converting furnace, melt launders for connecting the smelting furnace, the separating furnace and the converting furnace in series, a plural... | 06/08/1993 |
| 5064174 | Apparatus for production of energy and iron materials, including steel A process and arrangement are provided for the efficient generation of energy from coal, while at the same time providing for a relatively inexpensive step in processing of iron or steel, and the extraction of valuable materials such as oils from coal. An... | 11/12/1991 |
| 4958809 | Liquid metal launder A method of controlling the movement of particles entrained in a liquid metal flowing along a confined flow path having a substantially horizontal base characterized by the steps of: (1) disposing a first planar device within the flow path to cause the sh... | 09/25/1990 |
| 4844425 | Apparatus for the on-line treatment of degassing and filtration of aluminum and its alloys Apparatus for on-line degassing and filtering aluminum and its alloys, constituted by a thermally insulated container body, provided with a removable lid (2) incorporating heating means (7) for heating the metal to be processed, said container body being ... | 07/04/1989 |
| 4790516 | Reactor for iron making A reactor for iron making having an upper gas blowing nozzle, a lower gas blowing nozzle, and an iron scrap charging inlet. A vertical shaft is installed directly above the inlet at the top part of the reactor. A mechanism is provided in the lower end of ... | 12/13/1988 |
| 4786321 | Method and apparatus for the continuous melting of scrap A method and apparatus for the continuous melting of an iron-containing material in a melting device, the melting device being composed of a vertical shaft having a central axis, a melting furnace disposed below, and communicating with, the shaft, the mel... | 11/22/1988 |
| 4784374 | Two-stage aluminum refining vessel An aluminum refining vessel has two refining stages positioned side-by-side, with flow of molten aluminum into and out of the vessel being from the same side thereof. The vessel is readily adaptable for the reversal of flow therethrough, and for ease of i... | 11/15/1988 |
| 4645186 | Apparatus for processing sulphide concentrates and sulphide ores into raw material The present invention relates to a method and apparatus for treating sulphide concentrates of sulphide ores in order to produce raw metal in one and the same process unit (1). According to the invention, the molten matte (5) received from suspension smelt... | 02/24/1987 |
| 4607825 | Ladle for the chlorination of aluminium alloys, for removing magnesium The present invention relates to a ladle for the chlorination in co-flow mode of aluminium alloys in a molten state. It is divided by a vertical partition (6) which, with the bottom, leaves a space (7) for the flow of the metal, into a feed compartment (8) and... | 08/26/1986 |
| 4589634 | Furnace for smelting non-ferrous and/or for holding non-ferrous metal melts A furnace for smelting nonferrous metals and/or for holding nonferrous metal melts is proposed which has a multiple-chamber trough having at least one filling chamber, at least one smelting chamber and/or one holding chamber and at least one drain chamber... | 05/20/1986 |
| 4544141 | Process and apparatus for continuous converting of copper and non-ferrous mattes A continuous process and apparatus for converting non-ferrous mattes is disclosed. The process comprises feeding continuously or intermittently a liquid matte into a furnace while continuously blowing air, oxygen or oxygen-enriched air into the melt conta... | 10/01/1985 |
| 4456231 | Apparatus for refining lead An apparatus for continuously refining molten crude lead including a furnace for removal of antimony from the crude lead regardless of whether the crude lead does or does not contain arsenic and/or tin. The furnace is of the reverberatory type having a pl... | 06/26/1984 |
| 4385931 | Method and furnace for refining of magnesium Raw magnesium is charged into a precipitation chamber in a refining furnace beneath the metal surface as a stream directed toward a salt layer beneath the metal. The resultant precipitated sludge is directed along a sloped bottom in the chamber to an adja... | 05/31/1983 |
| 4294433 | Pyrometallurgical method and furnace for processing heavy nonferrous metal raw materials A method for processing heavy nonferrous metal raw materials by heating and melting said raw materials in a molten slag with the formation of a heterogeneous melt consisting of a sulfide and an oxide phases. The melt is bubbled oxidized by injecting a gas... | 10/13/1981 |
| 4213599 | Apparatus for the production of aluminium In a apparatus for the production of aluminium a molten alumina slag, containing combined carbon is circulated through one or more alternately arranged relatively low temperature zones where carbon is added to increase the combined carbon content of the s... | 07/22/1980 |
| 4208041 | Metallurgical apparatus A metallurgical apparatus; air is continuously blown into a mixture of agglomerates of lead concentrates and carbonaceous fuel in a shaft furnace. The resulting slag is delivered from the shaft furnace into a settling tank to which the slag continuously f... | 06/17/1980 |
| 4200265 | Furnace for the melting and refining of copper A furnace for the melting and refining of raw copper and/or blister copper comprises a shaft furnace having a lock-chamber feeder for the material at the top of the shaft furnace and an opening into a hearth furnace in which the copper is refined. The sha... | 04/29/1980 |
| 4159104 | Apparatus for inline degassing and filtration of molten metal The disclosure teaches an improvement in the degassing and filtration of molten metal, especially aluminum, using an apparatus which employs a pair of sequentially placed, removable filter-type plates and at least one fluxing gas inlet positioned therebet... | 06/26/1979 |
| 4093194 | Process and reactor for making magnesium metal Magnesium metal is made by injecting sodium metal beneath the surface of a magma of MgCl2 and withdrawing molten magnesium metal from the magma surface.... | 06/06/1978 |
| 4087080 | Apparatus for filtering metal melts A metal melt is filtered by causing the melt to flow successively into a filter chamber, downwards through the filter chamber, into a riser chamber, upwards through the riser chamber, and out of the riser chamber, and simultaneously introducing a counter-... | 05/02/1978 |
| 4073481 | Continuous sulphur drossing apparatus Apparatus for the continuous sulphur drossing of lead to reduce its copper content including a plurality of reaction vessels arranged in series, each reaction vessel having a curved bottom and a stirrer for creating a vortex of the contents. Bullion and s... | 02/14/1978 |
| 4054275 | Continuous stream treatment of ductile iron A method and apparatus for producing modified grey iron, and particularly nodular cast iron, is disclosed. The apparatus comprises refractory elements including an inclined flow course for continuous reception of molten grey iron, a V-shaped inclined rece... | 10/18/1977 |
| 4052043 | Apparatus for continuously refining molten metals The continuous refining of molten metal is carried out in a refining apparatus having communicating first and second refining stage spaces. Refining gas, such as oxygen, is blown into the molten metal in the presence of a slag layer on the molten metal. T... | 10/04/1977 |
| 4042228 | Apparatus for debismuthising lead Apparatus for debismuthising lead containing one or more alkaline earth metals or alloys thereof, including a separation vessel having independently temperature-controlled upper liquation and lower separation zones, devices for adding a reagent selected f... | 08/16/1977 |
| 4031309 | Arrangement for producing steel An electric furnace has an inlet opening for introduction of starting materials in the upper region thereof. A pre-melting vessel is arranged above the furnace and has a discharge opening above and in communication with the inlet opening of the furnace. T... | 06/21/1977 |
| 4025059 | Device for the continuous production of steel An apparatus for the continuous production of steel comprising a generally vertical shaft melting zone having a floor, a generally horizontally running refining zone in fluid communication with a lower region of said vertical shaft, the floor of said refi... | 05/24/1977 |
| 4021026 | Protection for externally heated cast iron vessel used to contain a reactive molten metal An externally heated cast iron vessel, intended for containing a reactive molten metal, such as aluminum, is made resistant to attack by the molten metal, thereby increasing its useful service life and minimizing contamination of the melt, by lining the i... | 05/03/1977 |
| 4001013 | Method of operating copper ore smelting reverberatory furnace A method of operating a reverberatory furnace for copper smelting, wherein an oxygen fuel burner is provided in addition to the main fuel oil burners, and the oxygen content and flow rate of the oxygen-fuel gas mixture is so adjusted that the latent heat ... | 01/04/1977 |
| 3980283 | Apparatus for performing a continuous metallurgical refining process An apparatus for performing a continuous metallurgical refining process in which metal and slag contact one another comprising a counter-current channel in which nozzles are passed through longitudinal side walls of the channel in the region of the predet... | 09/14/1976 |
| 3971549 | Process and apparatus for treating and transferring metal in the liquid state Metal in the molten state is transferred from one treating stage or zone to a succeeding stage or zone by gravity flow, the flow from one zone to the next being controlled by gas pressure, thus eliminating the need for valves, gates or similar moving part... | 07/27/1976 |
