Quotables
"The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous."
Aide-de-camp to Field Marshal Haig ; At a tank demonstration, 1916
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8157884 | Method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal The invention concerns a method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal, in which the liquefied metal-containing slag is heated in a primary or secondary smelting unit... | 04/17/2012 |
| 8133295 | Method and apparatus for lead smelting A method for producing lead involves feeding lead concentrate, flux and solid fuel passing to a feed preparation unit. The prepared, mixed feed is then passed to a lead smelting furnace, such as an ISASMELT furnace or other top entry, submerged lance furnace. Air or... | 03/13/2012 |
| 7955409 | Method of smelting copper A method of smelting copper includes: a generating step of generating blister and slag from copper matte by charging the copper matte into a smelting furnace and oxidizing the copper matte; a first refining step of refining another blister from the slag by reduction... | 06/07/2011 |
| 7597736 | Method for utilizing slag In a process for utilizing slag containing oxidic iron particles, adding a reducing agent and reducing oxidic iron particles of the slag are charging the slag into a reactor vessel onto a residual iron metal containing dissolved carbon, slowly and continuously over ... | 10/06/2009 |
| 7435281 | Pyrometallurgic process for the treatment of steelwork residues A pyrometallurgic process for the treatment of post-steelwork residues, comprises the following phases: preparing a furnace (1) of the electric type, suitable for the introduction of the residues; preparing the residues, for example in a hopper with the possi... | 10/14/2008 |
| 7172640 | Method and device for melting down metal-containing materials In a method and a device for melting down metal-containing material, preferably fine-particulate metal-containing material, such as sponge iron, in a metallurgical melting furnace (1), wherein, in an interior space (11) of the melting furnace (1... | 02/06/2007 |
| 7094271 | Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel The invention relates to a method for producing stainless steels, in particular steels containing chromium and chromium-nickel. The method is carried out in a melting device containing a metallurgical vessel, or in a melting device (1) containing at least two... | 08/22/2006 |
| 7004992 | Chromium-containing metal and method for producing the same The high-Cr-containing metal according to the present invention is a chromium-containing metal manufactured in an arc melting furnace, and contains at least 85% Cr, up to 0.005% Al, up to 0.1% Si, and up to 0.002% S. The manufacturing method of this high-Cr-containi... | 02/28/2006 |
| 6761749 | Method for the production of blister copper in suspension reactor The invention relates to a method of producing blister copper pyrometallurgically in a suspension reactor directly from its sulfidic concentrate. According to the method the copper sulfide concentrate is fed into a suspension reactor, into which cooled and finely gr... | 07/13/2004 |
| 6679931 | Method for recovering metallic chromium from slag containing chromium oxide A method for recovering metallic chromium from slags which contain chromium oxide from converter processes, such as AOD, MRP, AOD-L, MRP-L, CLU, ASM, Conarc stainless steel or vacuum processes, such as VOD, SS-VOD, RH, RH with lanze, includes drawing off ... | 01/20/2004 |
| 6506225 | Method for integrated desulfurizing of pig iron melt and steel melt In a steelmaking process in which, in order to desulfurize iron melts (4) using a strongly basic slag in a desulfurization vessel (7), the desulfurization slag (8) is brought to a temperature of from 1400-1800° C. by heating, and this desulfurization sla... | 01/14/2003 |
| 6409793 | Method for processing steel slags containing chromium A method for processing steel slags and optionally iron carriers such as, e.g., electric furnace slags, converter slags, dusts derived from steel production, mill scale or secondary metallurgical residues, in which the molten steel slags or iron carriers ... | 06/25/2002 |
| 6143050 | Modifying slag for smelting steel in electric arc furnaces An improved method for modifying slag in an electric arc furnace comprising introducing into the slag, or on top of the slag, vermiculite platelets which have been refined into concentrated form whereby the flakes comprise at least 50%, and more preferabl... | 11/07/2000 |
| 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 |
| 5997606 | Production of titanium slag A process for producing titanium slag which is low in radioactivity wherein molten titanium slag, produced by smelting ilmenite in the presence of a reductant in a DC electric arc furnace, is separated from molten iron, boron in an amount which is less th... | 12/07/1999 |
| 5968224 | Recovery of titanium values from titanium grinding swarf by electric furnace smelting A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an ... | 10/19/1999 |
| 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 |
| 5882375 | Process for the production of hydraulic binders and/or alloys, such as for examples, ferrochromium or ferrovanadium In a process for the production of hydraulic binders, crude steel and/or alloys, such as, e.g., FeCr or FeV, from basic steel slags containing chromium and/or vanadium, the liquid steel slag is mixed with an additive selected from the group consisting of ... | 03/16/1999 |
| 5865872 | Method of recovering metals and producing a secondary slag from base metal smelter slag A method of recovering metals and producing a secondary slag from base metal smelter slag produced by a copper or nickel smelter includes mixing the smelter slag with at least one reducing agent selected from the group consisting of carbon, calcium carbid... | 02/02/1999 |
| 5755889 | Solder recovery method and apparatus Apparatus and a method for recovering solder from dross. Dross is poured into a heated chamber (1). The heated dross is then compressed by a piston (21) to force good solder out of the dross into a collecting tray (17).... | 05/26/1998 |
| 5735930 | Method for resources recovery from refractory carbonaceous magma A method of refining magma, which includes silicon carbide, basaltic clay, and other insoluble components, including the steps of blending the magma with monovalent alkali hydroxides and a chemical oxidizing agent, melting the magma, and injecting oxygen ... | 04/07/1998 |
| 5700308 | Method for enhancing reaction rates in metals refining extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes A method and apparatus for enhancing reaction rates between ionic species such as slags, mattes, fluxes and the like with at least another component such as similar melts, metals, chemical compounds, gases or any combination thereof during metal processin... | 12/23/1997 |
| 5632800 | Accelerated decarburization of Fe-C metal alloys A process for improving the rate of metal production and FeO utilization in a steelmaking process or a process combining iron-making and steelmaking in a single reactor that uses or generates Fe-C metal alloy droplets submerged in an FeO-containing slag. ... | 05/27/1997 |
| 5575829 | Direct use of sulfur-bearing nickel concentrate in making Ni alloyed stainless steel A process for obtaining Ni units from sulfur-bearing nickel concentrate during refining a nickel-alloyed steel or a stainless steel. Sulfur of the concentrate is transferred to and held within the slag by controlling slag composition and temperature, degr... | 11/19/1996 |
| 5492554 | Method for producing high-grade nickel matte from at least partly pyrometallurgically refined nickel-bearing raw materials The invention relates to a method for producing high-grade nickel matte and slag in a combination of a suspension smelting furnace and some other furnace without charge-type converting, so that at least part of the concentrate and/or ore fed into the proc... | 02/20/1996 |
| 5314524 | Process of discharging charge-build up in slag steelmaking processes A process and apparatus for improving metal production in ironmaking and steelmaking processes is disclosed. The use of an inert metallic conductor in the slag-containing crucible and the addition of a transition metal oxide to the slag are the disclosed ... | 05/24/1994 |
| 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 |
| 5203908 | Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy at high enthalpy A process for recovering free aluminum and aluminum compounds such as aluminum oxide from aluminum dross and aluminum scrap in a furnace heated with a plasma arc torch wherein air at high enthalpy is used as the arc gas. The use of air at high enthalpy as... | 04/20/1993 |
| 5194086 | Process for the recovery of valuable materials from slags of metallothermic processes The metal-values bearing slags of metallothermic processes are separated from metal melts and then fully reduced electrothermally with carbon to form a new metal melt. Slag removed from the new metal melt is essentially free of said metal values.... | 03/16/1993 |
| 4877448 | Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy A process for recovering free aluminum and aluminum compounds such as aluminum oxide from aluminum dross and aluminum scrap in a furnace heated with a plasma arc torch wherein air is utilized as the arc gas is described. The use of air as the arc gas prov... | 10/31/1989 |
| 4737186 | Method for continuous reduction of molten metallurical slag in an electric furnace A method for the continuous recovery of non-iron metals from a molten metallurgical slag containing lead, copper or nickel by continuously reducing the layer with carbon dust. The metal layer produced at the furnace bottom is maintained sufficiently thin ... | 04/12/1988 |
| 4534791 | Process for treating silicon and ferrosilicon with slag The invention relates to a process for treating elemental silicon and ferrosilicon with slag having the following analytical composition: and impurities resulting from the raw materials.... | 08/13/1985 |
| 4221591 | Method for reclaiming galvanizing quality zinc alloy from continuous galvanizing line top dross Means and a method for reclaiming galvanizing quality zinc alloy from the top dross of a continuous galvanizing line. A dross furnace is provided having front, rear and side walls and a hearth sloping from the rear wall toward the front wall. The front wa... | 09/09/1980 |
| 4214897 | Process for the extraction of non-ferrous metals from slags and other metallurgical by-products Non-ferrous metals are extracted from molten slags 9 by treating the latter in an electric furnace with submerged electrodes 2 under a layer of a solid reducing agent 8. During the extraction, a non-oxidizing gas is injected into the molten material at a ... | 07/29/1980 |
| 4190434 | Thermal processes for the production of magnesium This invention relates to the thermal production of magnesium, using, as source of magnesium oxide, a residual slag from the manufacture of certain carbon-containing chrome irons and, as reducing agent, a ferro-silico-aluminum for carrying out the MAGNETH... | 02/26/1980 |
| 4168155 | Process for smelting lead refinery dross Lead refining drosses are fed to a furnace containing molten slag that is heated to at least about 1200° C. by the resistance to electric current flowing between at least two electrodes immersed in the slag. The drosses are smelted to separate matte and ... | 09/18/1979 |
| 4144055 | Method of producing blister copper A method of producing blister copper comprising smelting sulphidic copper raw material in a rotary furnace with an inclined rotation axis, in presence of oxygen and slag formers charged simultaneously with the copper raw material. The method comprises dis... | 03/13/1979 |
| 4115108 | Matte smelting Improvements in matte smelting are disclosed. A circular furnace is formed having a concave bottom, the radius of curvature of the bottom being no greater than the diameter of the circular furnace. The matte level is controlled to cover not more than half... | 09/19/1978 |
| 4110107 | Process for reducing molten furnace slags by carbon injection A process is provided for recovering metals from metal-containing slags such as iron-copper slags from copper smelting furnaces and iron-nickel slags produced in smelting nickel-bearing ores. The molten slag is fed to an electric-arc furnace wherein a mol... | 08/29/1978 |
| 4072507 | Production of blister copper in a rotary furnace from calcined copper-iron concentrates A method is provided for producing blister copper from calcined copper-iron concentrates wherein the calcine containing copper ferrite is mixed with particulate carbonaceous reducing agent and charged into a rotary furnace, slag-forming ingredients being ... | 02/07/1978 |
