Abstract: A process and apparatus for producing lead and zinc from concentrates of zinc and lead sulfides or oxides includes the steps of: (a) mixing lead ore and/or zinc ore concentrates, iron bearing and carbon containing materials, metallic iron fines and iron oxide fines, carbonaceous reductant, fluxing agent, and a binder to form a mixture; (b) forming agglomerates from the mixture (c) introducing the agglomerates to a melting furnace; (d) maintaining a reducing atmosphere within the melting furnace; (e) vaporizing lead and zinc in the melting furnace at a temperature of 1000 to 1650 C, and removing the lead and zinc from the melting furnace in vaporized form; (f) cooling and condensing the metal vapors to liquid metal; and (g) separating the zinc and lead; and (h) recovering the lead and zinc metal separately.
Abstract: An improved method for processing of nickel bearing saprolite and limonite ores to recover the valuable minerals contained therein, comprising leaching the ore with nitric acid to form a slurry; separating the iron values by precipitation, removing the iron values; forming a liquid/solid residue in which nickel, cobalt and magnesium are in solution, and manganese and aluminum are solid residues in oxide form; conducting a liquid-solid separation and removing the solids; and recovering the nickel, cobalt, and manganese from the liquid-metal concentrate. The leachate is recovered and nitric acid from the leachate is recycled.
May 1, 2008
Date of Patent:
October 18, 2011
Drinkard Metalox, Inc.
William F. Drinkard, Jr., Hans J. Woerner
Abstract: An improved method for processing of nickel-bearing ores, laterite ores, saprolite and limonite ores, oxidic and sulfide ores, metallurgical wastes, and other metal-bearing materials, to recover the valuable minerals contained therein, comprising comminuting ore to a desired size; leaching the ore at about 70 C to 130 C for about 30 minutes to 4 hours with nitric acid, raising the temperature of the solution to form a liquid/solid residue in which nickel, cobalt and magnesium values are in solution, and iron, manganese, and aluminum are solid residues in oxide form; conducting a liquid-solid separation and removing the solids; and recovering the nickel, cobalt, and manganese from the liquid-metal concentrate. The leachate is recovered and the nitric acid from the leachate is recycled.
Abstract: A method for producing pig iron by direct processing of ferrotitania sands, by the steps of: (a) mixing carbonaceous reductant, a fluxing agent, and a binder with titanium-containing materials selected from iron sands, metallic oxides, and/or iron ore concentrates, to form a mixture; (b) forming agglomerates from the mixture (c) introducing the agglomerates to a melting furnace; (d) melting the agglomerates at a temperature of from 1500 to 1760 C and forming hot metal with a slag thereon; (e) removing the slag; (f) tapping the hot metal; and (g) recovering the titanium and vanadium values.
Abstract: An air separator is provided with a rotor positioned above three concentric vessels. The rotor and a plurality of entry ports segregate comminuted material into the three vessels. An exit port from each vessel directs the separated comminuted material for further comminution processes, such as to a ball mill or a roll press, or for use as a final product.
Abstract: In a basic variant of a soldering device whereby a laser device is used for melting solder material (3), a protective device is provided which protects the laser lens system (22) from suctioned liquid solder material. Protection of the laser lens system can be achieved by a transverse flow from an inlet channel (23) into an outlet channel (24) and/or by a diaphragm (39) arranged in front of the laser lens system.
October 2, 2001
Date of Patent:
November 9, 2010
Pac Tech-Packaging Technologies GmbH
Elke Zakel, Paul Kasulke, Oliver Uebel, Lars Titerle
Abstract: A method for applying a solder to a substrate by positioning solder in a solid state, melting it and then impacting it against a substrate by the action of compressed gas. The method utilizes a holder having a capillary bore whose diameter, at the substrate end, has a contraction whose diameter (D2) is smaller than the diameter (D3) of the solder globule, an energy source connected to the capillary, and a compressed gas source connected to the capillary.
Abstract: A closure cap for a product container such as a prescription medicine vial, that has a number time and date dials for reminding a user when to take the next dose. The cap's time and date dials are rotatable together or individually with the use of uniquely shaped turning tabs. The dials allow for a user to set the reminder to indicate any hour of the day, any day of the week, and any date of the month. The cap may also have a next and last dose setting. The cap may also have a locking mechanism to prevent inadvertent changes to the set time.
Abstract: An improved method and apparatus for safely and securely holding and manipulating a musical instrument for construction or repair, the apparatus for which consists of a base, a pedestal upstanding from the base having an associated vertically adjustable post, an instrument support assembly including an instrument support plate mountable thereon; a holder mounted atop the pedestal for holding the instrument support assembly; clamps for attaching an instrument to the instrument support assembly; a pivot for supporting the instrument support assembly about a vertical axis; a pivot for rotating the instrument support assembly about an axis normal to the face of the support plate; and a gear for rotating the instrument support assembly about a horizontal axis.
Abstract: An easily assembled and repairable plastic shipping pallet includes two or more plastic runner rails and multiple plastic cross boards secured perpendicularly to the top and bottom of the runner rails by pins and pin receiver/retainers. The pins engage and retain the cross boards by a slide and snap-in mechanism. This construction allows for rapid and easy repair of a pallet that may become damaged. The method of assembly includes placing pairs of holes of the slats over mating pairs of pegs in the proper orientation; and sliding each slat a short distance to engage each projection in its mating recess.
Abstract: An improved method and apparatus for urging a flooring strip into close or tight engagement with the adjacent flooring strip, which has already been fixed into position, and holding the flooring strip securely in position for nailing or otherwise fixing the flooring strip. The invented device has a base plate with having holes therein for attachment to a floor (subfloor), a rack and pinion gear arrangement where the rack has an angle iron style pusher-puller ram pusher at the end of the rack, the end of the base plate having a removable shoe, and a rack housing situated on the base plate with an associated pinion gear engaging the rack and operated by a levering handle for urging the flooring strip into position for installation.
Abstract: The invention is a method for correlating and assigning digital camera images to a database file. The method enables a photographer to keep track of large numbers of subjects and items. The method uses a timestamp from a bar code reader to synchronize recorded swipes of bar codes with the digital images created produced by the camera. The bar code reader is used to swipe identifying bar code on items or subjects that are to be tracked, such as on a student's camera card, a police investigation report or a catalogue item. The time and the bar code serve as a means to cross-reference any item or subject to the digital images. The photographs and bar code scans are downloaded into a computer, and then by inspection of the recorded times of when the scans were made and the pictures were taken, the images can be assigned to the appropriate file. The images can then be loaded into the item's or subject's file, secure in the knowledge that the images are appropriately assigned.