Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 5584942 | Flux for soldering A flux applied in soldering to a substrate metal formed thereon with a firmly oxidized layer, the flux containing at least stannous chloride, non-oxidation acid and a viscous agent and excluding zinc chloride therefrom.... | 12/17/1996 |
| 5562753 | Method and installation for producing molten steel from ferrous materials rich in carbonaceous materials Both a method and apparatus for producing molten steel are provided wherein ferrous materials rich in carbonaceous materials are fused in a first vessel of a single electric furnace having separate first and second vessels. The carbonized molten metal thu... | 10/08/1996 |
| 5545251 | Method of and device for directly reducing fine-particle ores and concentrates thereof The present invention concerns a method of and a device for directly reducing fine-particle ore in a horizontal reactor with an ore-reducing gas and a heat vehicle, also a gas, in a fluidized bed. The ore-reducing vessel itself comprises a horizontal fluidized... | 08/13/1996 |
| 5525163 | Welding compositions Penetration Enhancing Compounds for use in welding is characterized as comprising select alkali metals and alkali earth metals and halogens.... | 06/11/1996 |
| 5516353 | Separation of metal droplets of aluminum and its alloys from molten salts by application of electrical potential The invention relates to the application of an electric potential to a mixture of molten metal droplets, molten salts, and optionally certain fluoride salt additives, whereby the molten metal migrates toward one of the electrodes. The migration encourages... | 05/14/1996 |
| 5507882 | Low residue water-based soldering flux and process for soldering with same Low residue water-based soldering flux, and process and system for using the same. The flux includes a mixture of succinic, glutaric and adipic acid in water, and optionally a wetting agent. The flux is applied to a surface to be soldered. The flux is dri... | 04/16/1996 |
| 5490869 | Process and device for treating pollutant, fusible materials The invention relates to a process and device for treating pollutant fusible materials which are conductors of electricity in the molten state. The process consists in introducing the waste into an induction furnace (11, 40) comprising an inductor circuit... | 02/13/1996 |
| 5484470 | Enhancement of gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds An improved process for dissolving gold metal in ligand and oxidant lixiviation systems, wherein the solubility of gold is enhanced by the addition of heterocyclic aromatic compounds containing nitrogen or sulfur in the ring.... | 01/16/1996 |
| 5482691 | Process for the production of intermediates useful in the processing of ilmenite and related minerals The invention relates to a process for the production of metallic titanium, characterized in that the process comprises reducing a titanium-fluorine compound selected from titanium tetrafluoride and any hexafluorotitanate soluble in a molten fluoroalumina... | 01/09/1996 |
| 5480473 | Method for intensifying the reactions in metallurgical reaction vessels The invention relates to a method for intensifying the reactions in metallurgical reaction vessels containing a molten bath to which the reacting agents are fed below and above the bath surface, the gases emerging from the metal bath being afterburned in ... | 01/02/1996 |
| 5474593 | Agent for treating metal ions in an aqueous solution, process for producing the metal ion-treating agent and method for treating metal ions in an aqueous solution An agent for treating metal ions in an aqueous solution, comprising a solid porous carrier and, supported thereon, an organic reagent (hereinafter referred to as a "redox reagent") which is capable of converting metal ions (inclusive of metal complex ions... | 12/12/1995 |
| 5472176 | Silver recovery device A silver recovery device for recovering silver from photographic fluid is provided. The silver recovery device includes an outside container having a fluid inlet and a fluid outlet. The fluid inlet has an extension tube which causes the entering fluid to ... | 12/05/1995 |
| 5470376 | Recovery of non-ferrous metals from dross A process of recovering a non-ferrous metal from a dross containing the same. The process involves introducing into a rotary furnace the dross and a fluoride compound which becomes substantially molten above the melting point of the metal, heating the dro... | 11/28/1995 |
| 5468280 | Molten metal conveying means and method of conveying molten metal from one place to another in a metal-melting furnace with simultaneous degassing of the melt A method, for the conveyance of molten metal from one place to another, in a high-temperature molten metal pool in a metal-melting furnace or out of said molten metal pool, employing an at least partially-inclined elongated conveying conduit and gas feed ... | 11/21/1995 |
| 5468281 | Process for the separation of cobalt from nickel A process is disclosed for separating cobalt in the form of cobalt (III) hexammine sulphate from an aqueous solution containing cobalt (III) hexammine sulphate and nickel (II) hexammine sulphate comprising adding ammonium sulphate to provide an effective ... | 11/21/1995 |
| 5466275 | Method and apparatus for desulphurizing iron with minimal slag formation The invention relates to a method and apparatus for desulphurizing iron with minimal slag formation, comprising the steps of melting and heating, to a temperature of about 1400° to 1800° C., a slag having the following chemical composition: 20% max SIO | 11/14/1995 |
| 5464464 | Method for reducing particulate iron ore to molten iron with hydrogen as reductant A method for reducing particulate iron oxide and/or other iron units to molten iron utilizing gaseous hydrogen as reductant in a reducing furnace, in which the ore freely falls during the melting and reduction process. Reacted top gas is purified and reci... | 11/07/1995 |
| 5464596 | Method for treating waste streams containing zinc A method for the recovery of zinc products, including zinc oxide and elemental zinc, and optionally iron-carbon feedstocks, from industrial waste streams containing zinc and iron, by treating the waste streams with carbon and an ammonium chloride solution... | 11/07/1995 |
| 5462579 | Method and apparatus for manufacturing medium or low carbon ferromanganese An object of the present invention is to provide method and apparatus for manufacturing medium or low carbon ferromanganese at reduced running costs. In order to achieve the above object, the present invention resides in charging molten high carbon ferrom... | 10/31/1995 |
| 5462578 | Method for the extraction of the metallic phase from dispersed mixtures of light metals and nonmetallic components Method for the extraction of the metallic phase from dispersed mixtures of light metals and nonmetallic components. The invention pertains to an advantageous method for the extraction of the metallic phase from a dispersed mixture comprised of at least on... | 10/31/1995 |
| 5462613 | Method and apparatus for producing steel rods with a desired tensile strength and model for simulating same A method and apparatus are provided for producing rods having a desired tensile strength from a rod manufacturing process set to an optimal operating condition. Initially, the rod manufacturing process is set in an optimal condition to produce rods at a m... | 10/31/1995 |
| 5458672 | Combustion of sulfur released from sulfur bearing materials A Process for combusting sulfur vapor released from a sulfur bearing material, comprising: (a) introducing a sulfur bearing material into a furnace having a combustion zone; (b) ejecting at least one fuel stream with or without a substoichiometric amount ... | 10/17/1995 |
| 5456452 | Apparatus for making steel alloys in a tundish A method and apparatus are provided for making steel alloys directly in a tundish. Base steel enters the tundish from a ladle. An alloying chamber having a plurality of inlets is positioned above a tundish drain. An alloying material (for example, a wire ... | 10/10/1995 |
| 5456739 | Process for reclaiming aluminum from waste paper and packaging products Aluminum is recovered from organic waste paper and packaging material containing aluminum foil by heating the waste material in a kiln or other such device to decompose the organic constituents in the waste material, preferably by pyrolysis, producing hot... | 10/10/1995 |
| 5454853 | Method for the production of steel In a method for the production of steel in an environmentally benign fashion, energy sources other than conventional fossil fuels are used to produce reductant fuels. These reductant fuels are used for the reduction of iron ore and its conversion to steel... | 10/03/1995 |
| 5454856 | Recovery of nickel in soluble form from a liquor A process for recovering nickel that is in soluble form and in relatively low concentrations, typically up to 2% by weight in a liquor, comprises: (a) precipitating nickel from solution (preferably as a hydroxide or sulphide); (b) adding an inert particul... | 10/03/1995 |
| 5454852 | Converter for the production of steel A converter for the production of steel from solid and/or liquid charging substances, such as pig iron and/or scrap and/or sponge iron, includes a refractorily lined refining vessel, a refining device for feeding oxygen or an oxygen-containing gas, and a ... | 10/03/1995 |
| 5454854 | Method of refining molten metal or molten alloy A method of refining a molten metal or a molten alloy through degassing, wherein a gas is blown into a molten metal or a molten alloy contained within a refining container, while stirring by utilizing an electromagnetic force, to superimpose the blown gas... | 10/03/1995 |
| 5453111 | Method for separation of metals from waste stream A method for the recovery of metals including zinc, zinc oxide, iron-carbon feedstocks, lead and cadmium from industrial waste streams which entails treating the waste streams with carbon and an ammonium chloride solution, separating any undissolved compo... | 09/26/1995 |
| 5451247 | Process for removing tin, arsenic and antimony from molten lead The invention relates to a process for removing tin, arsenic and antimony from molten lead by means of oxygen or oxygen-containing gas mixtures, which is or are blown into the molten lead by means of at least one gas nozzle (2). To avoid damage to the gas... | 09/19/1995 |
| 5449397 | Biocatalyzed leaching of precious metal values A biohydrometallurgical apparatus and method for extracting precious metals, including gold and silver, from oxidized ore by means of leaching with a neutral bisulfide solution instead of cyanide, thiourea, thiosulfate, or other conventional lixiviants is... | 09/12/1995 |
| 5449395 | Apparatus and process for the production of fire-refined blister copper Fire-refined blister copper is produced from copper concentrate by a process comprising: A. melting and oxidizing the copper concentrate in a smelting furnace to produce molten matte and slag, and to separate one from the other; B. removing the molten matte fr... | 09/12/1995 |
| 5447552 | Process for the extraction and separation of nickel and/or cobalt The invention provides a hydrometallurgical process for the recovery of metals. In particular, an aqueous feed solution originating from acid leaching is provided. The aqueous feed solution contains nickel and/or cobalt ions. The pH of the solution is mai... | 09/05/1995 |
| 5447577 | Carbon dioxide-based fluxing media for non-VOC, no-clean soldering A flux formulation for use in the assembly of electronic circuit boards having components to be joined by soldering. The formulation comprises a medium which acts as a carrier and solvent for the fluxing agent, which includes in a preferred embodiment sup... | 09/05/1995 |
| 5447293 | Method and apparatus for quenching heat treated objects A quench chute for use in heat treating objects extends from one end of a furnace into a tank filled with quenching fluid. The chute has a passage therein through which heat treated objects fall from the furnace into the tank. Laminar sheets of quenching ... | 09/05/1995 |
| 5445667 | Method for reducing material containing metal oxide in solid phase A method of reducing material containing metal oxide in a circulating fluidized bed, in which coal in excess and air is introduced into the fluidization chamber so as to maintain a temperature of >850° C. in the chamber. Bed material which has been separ... | 08/29/1995 |
| 5442978 | Tantalum production via a reduction of K2TAF7, with diluent salt, with reducing agent provided in a fast series of slug additions Fine tantalum powder of high surface area, high capacitance, low leakage and high breakdown voltage is produced by sodium reduction of highly dilute fluotantalate salt charges at high reaction temperatures and stepwise additions of the sodium reducing age... | 08/22/1995 |
| 5443622 | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper Impurity streams generated during the pyrometallurgy of copper are hydrometallurgically processed at ambient pressure for recovery of primary values in an energy-efficient manner and with the capture and conversion of metallic impurities to states that ar... | 08/22/1995 |
| 5443660 | Water-based no-clean flux formulation A no-VOC or low-VOC no-clean flux formulation for use in the assembly of electronic circuit boards having a conformal coating. The formulation comprises a solvent, a water-soluble weak organic acid, a halide-free, non-ionic surfactant, and a biocidal co-s... | 08/22/1995 |
| 5443658 | Braze filler metal alloy paste A braze filler metal alloy paste containing braze metal alloy powders, such as a nickel- or cobalt-based braze filler metal, homogeneously dispersed throughout an aqueous gel solution comprising a binder such as a cellulose material, for example, sodium c... | 08/22/1995 |
