U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.

Newsletter  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.

 

Class 266/168 - MEANS FOR TREATING ORES OR FOR EXTRACTING METALS


Subclass of Class 266 - Metallurgical apparatus
Definition: Device having means to a) concentrate and enrich the metalliferous
No. of patents: 56
Last issue date: 11/30/2010


1    
NumberTitleIssue Date
7842228Continuous refractory ore bioprocessing apparatus
Disclosed is a continuous refractory ore bioprocessing apparatus for the digestion of metal ore with bacteria. It includes a long trough tank fitted with a screw conveyer that extends along the length of the tank. A shell, having a number of feed ports, covers the s...
11/30/2010
7534389Apparatus and process for extracting arsenic in vacuum
A method of vacuum and pollution-free arsenic extraction, wherein increase the temperature of smelting chamber to 100-300° C. and then hold the temperature to remove the vapor and small quantity of dust in the arsenic concentrate; Under residual pressure≦50 Pa, i...
05/19/2009
7501089Method and apparatus for controlling the size of powder produced by the Armstrong Process
A needle valve is disclosed for controlling the quantity of a halide vapor to be injected into a liquid metal. The needle valve may seat in a supersonic nozzle from which the halide vapor exits. Various products made with the apparatus of the invention are disclosed...
03/10/2009
7371343Nano-powder extraction apparatus using a hollow impeller
Disclosed herein is a nano-powder extraction apparatus using the rotation of a hollow impeller, which is configured to extract nano-powder according to particle size thereof by effectively dissolving the nano-powder contained in plasma gas into a surfactant solution...
05/13/2008
7186390Brine maker
An improved brine maker includes a hopper having open upper and lower ends, a solids screen, and a receiving tank having an open upper end and closed lower end. The solids screen and receiving tank are pivotally secured to the hopper adjacent its lower end. The rece...
03/06/2007
7022504Method for the bacterially assisted heap leaching of chalcopyrite
A method for the bacterially assisted heap leaching of chalcopyrite includes providing a chalcopyrite containing ore heap to oxidize sulphide minerals therein, the heap containing and/or being inoculated with a sulphide oxidizing bacterial culture that either does n...
04/04/2006
6482250Nozzle for low pressure flash tanks for ore slurry
A wear-resistant flash tank pressure let down nozzle for use in passing an ore slurry into an ore slurry flash tank to release steam from the slurry and reduce the pressure of the slurry. The nozzle has an expansion cone flaring toward the discharge end o...
11/19/2002
6419724Method for reducing iron oxides and for melting iron and installations therefor
An apparatus for producing liquid pig iron, including an iron oxide reducing furnace, a melting furnace positioned to receive and melt iron oxides reduced in the reducing furnace, a pig iron discharge device associated with the melting furnace, a slag dis...
07/16/2002
6350354Modular solvent extraction plant
A modular solvent extraction plant for extracting metal from a metal are is provided. It includes a stage-wise, plug flow contactor that mixes an aqueous solution and an organic solvent solution into a mixed emulsion, a reactor to further mix the solution...
02/26/2002
6110255Nozzle for low pressure flash tanks for ore slurry
A wear-resistant flash tank pressure let down nozzle for use in passing an ore slurry into an ore slurry flash tank to release steam from the slurry and reduce the pressure of the slurry. The nozzle has an expansion cone flaring toward the discharge end o...
08/29/2000
5980605Carbothermal production of alkali metals
Production of metallic sodium and potassium by reaction of their hydroxides or carbonates with carbon. The carbon may be produced in situ by pyrolysis of a pyrolyzable carbonaceous material. There are further disclosed a process and installation for perfo...
11/09/1999
5958348Efficient production of particles by chemical reaction
An apparatus efficiently produces of particles from gas phase chemical reactions induced by a radiation beam. The apparatus includes a reaction chamber and an elongated reactant inlet, where the reaction chamber is configured to conform generally to the e...
09/28/1999
5882578Tilting metallurgical unit comprising several vessels
A metallurgical unit for smelting metal charge material and for post-treatment of the molten metal, which is tiltable from a starting position in a positive tilting direction (8) about a tilt axis (7), includes a melting vessel (1), with a furnace hearth ...
03/16/1999
5814273Trunnion liner apparatus
A trunnion liner apparatus includes a main body portion in the form of a rubber boot which forms a main pocket and a pair of cavities. A magnetic block is held within the main pocket for attaching the trunnion liner directly to an inside surface of a trun...
09/29/1998
5535992Apparatus and method for acidic leaching of lateritic ores
The invention provides an autoclave configuration for pressure leaching lateritic ores at elevated temperatures. The autoclave configuration includes at least one primary autoclave. The primary autoclave includes a slurry inlet port for receiving slurries...
07/16/1996
5460642Aerosol reduction process for metal halides
A method and apparatus for continuously producing metals such as zirconium, hafnium, titanium, niobium, vanadium, silicon and tantalum. The corresponding metal halide is reacted with a metallic reducing agent such as aluminum, calcium, magnesium and sodiu...
10/24/1995
5402991Tube connector for heap leach mining, drip tube percolation system, and method for connecting same
A tube connector utilized in connecting a drip tube to a header pipe in a heap leach mining percolation system which provides for strength at the normally weak connection between the header pipe and the drip tube. The tube connector includes a housing pro...
04/04/1995
5295665Apparatus for beneficiating ores
A method and apparatus for treating mineral-bearing ores and, more particularly, for treating particulate ores containing precious metals, base metals and the like for separating and recovering said values by classifying the particulate ore on a bed of pa...
03/22/1994
5264020Smelting plant with two melting furnaces arranged in juxtaposed relationship
In a smelting plant including two melting furnaces which are arranged in juxtaposed relationship and which are operated alternately, wherein the furnace gases which are produced in the melting process are respectively introduced into the other melting fur...
11/23/1993
5194213Copper smelting system
A system for continuous smelting of sulfidic copper concentrate in which an oxygen flash furnace is operatively connected with a continuous converter and the continuous converter is operatively connected with a finishing furnace....
03/16/1993
5192359Recovery of aluminum from furnace dross
A method and apparatus for recovering metallic aluminum from furnace dross. The method includes reducing the particle size of the dross and passing the resulting dross particles over the surface of an inclined linear induction motor to separate the more c...
03/09/1993
5102104Biological conversion apparatus
A cylindrical tank (12) is formed from stainless steel plates. Proximate an open top end (17) of the tank (12) are four evenly spaced mixing assemblies (20). An intake pipe (22) is positioned with an open end (38) below the surface of a biological convers...
04/07/1992
5057284Bioslurry reactor for treatment of slurries containing minerals, soils and sludges
A reactor vessel for use in treating slurries containing minerals, soils or sludges contaminated with toxic organic substances is disclosed. The vessel includes a tank, having a sealed cover, a mixer arrangement, an air supply arrangement and an exhaust g...
10/15/1991
5027891Method for transferring heat between process liquor streams
A method of transferring heat between process liquor streams such as streams of caustic liquor in the Bayer process for producing alumina from bauxite, utilizing a heat pipe arrangement for heat exchange. The process streams respectively pass in contact w...
07/02/1991
5007620Apparatus for biological processing of metal-containing ores
An apparatus for use in bioleach processing of metal-bearing solids is disclosed. The apparatus includes a containment means adapted for containing a slurry made up of metal-bearing solids, a predetermined quantity of water, oxygen, carbon dioxide, nutrie...
04/16/1991
4991824Apparatus for beneficiating ores
A method and apparatus for treating mineral-bearing ores and, more particularly, for treating ores containing precious metals, base metals and the like values by providing a means to extract the metal or other values from a particulated ore by classifying...
02/12/1991
4974816Method and apparatus for biological processing of metal-containing ores
A method and attendant apparatus for use in bioleach processing of metal-bearing solids is disclosed. The method includes the placement into a tank of metal-bearing solids, a predetermined quantity of water, oxygen, carbon dioxide, nutrients and a species...
12/04/1990
4968008Bioleaching apparatus and system
A reactor for use in processing metal bearing solids by means of a bioleaching technique is disclosed. The reactor includes an open topped basin, a gantry adapted for displacement along the length of that basin and an agitation means mounted on that gantr...
11/06/1990
4964622Leaching vessel and slurry flow control
A leaching vessel comprises a central outlet in which is situated a multi-bladed pump for pumping slurry from the vessel. An inclined wall adjacent the bottom wall of the vessel surrounds the outlet and has a plurality of apertures. The inclined wall defi...
10/23/1990
4960584Adjustable emitter for heap leach mining percolation system and method
A system for heap leach mining comprises supply and header pipes for conducting a leaching solution alongside a bed or "heap" of crushed metal-laden ore deposited on an impervious pad. A series of spaced tubes are connected to the supply and header pipes ...
10/02/1990
4933078Sorption vessel with internal interstage screening vessel
A sorption vessel including a tank for retaining a pulp of an aqueous slurry and a sorbent at a predetermined liquid pulp level therein; and an interstage screening system disposed within the tank and at least partially submerged beneath the predetermined...
06/12/1990
4923333Lysimeter for leak detection and method of assembly thereof
A lysimeter comprises a longitudinally extending circumferentially perforated duct having a vacuum application connection at one end thereof. A fluid permeable fabric is superposed over the duct perforations. A longitudinally extending circumferentially p...
05/08/1990
4893790Apparatus for producing metal zirconium by the reduction of zirconium tetrachloride
The invention concerns a process for the production of metal Zr by means of molten Mg in a reactor 1 having a hearth plate 3, comprising separating the magnesium chloride formed in the reduction reaction from the metal Zr formed. The process is characteri...
01/16/1990
4887799Apparatus for treatment of ore particles
A high-velocity jet of solvent is introduced through a nozzle into one end of a passage. A slurry of ore particles is feed into the passage through a narrow inlet port extending across the width of the passage in front of the nozzle of the jet. The result...
12/19/1989
4807854Leaching solution distribution arm and control therefor
A rotatable leaching solution distribution arm is carried on a central chamber member and disposed in a tank at an elevation above another rotatable arm also carried by the member for distribution of a washing solution into the tank. The leaching solution...
02/28/1989
4780138Sonic apparatus and method for facilitating the extraction of minerals from ore in a leachant
An elastic bar member is clamped to an orbiting mass oscillator and the entire assembly is suspended from a cable or the like such that the bar member has freedom of lateral motion and is nakedly immersed in a leachant having a material contained therein ...
10/25/1988
4754953Utilization of oxygen in leaching and/or recovery procedures employing carbon
In gold and/or silver cyanide leaching-adsorption processes employing solid adsorbents such as activated charcoal, the overall efficiency in the recovery of gold and/or silver from ores or the like is greatly increased by contacting the cyanide slurry con...
07/05/1988
4739973Chemical extraction of metals from ores
A novel system for chemically leaching ore that decreases pollution to the environment and that enhances reaction kinetics and economic considerations. An impervious covering (18) blankets a distribution network of drip lines (17) laid over the ore heap (...
04/26/1988
4732608Method for biological processing of metal-containing ores
A method and attendant apparatus for use in bioleach processing of metal-bearing solids is disclosed. The method includes the placement into a tank of metal-bearing solids, a predetermined quantity of water, oxygen, carbon dioxide, nutrients and a species...
03/22/1988
4728082Apparatus for biological processing of metal containing ores
A method and attendant apparatus for use in bioleach processing of metal-bearing solids is disclosed. The method includes the placement into a tank of metal-bearing solids, a predetermined quantity of water, oxygen, carbon dioxide, nutrients and a species...
03/01/1988
1    
 
Sign InRegister
Username  
Password   
forgot password?