| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 075638000 | Copper(Cu) | 17 |
| 20100107820 | Method for drying copper sulfide concentrates - Dried copper concentrate is introduced to a smelter/converter that utilizes oxygen enrichment in the smelter/convert process. The copper concentrate was previously dried in a gas suspension or fluid bed dryer by contact with nitrogen gas that was a byproduct from the oxygen plants utilized to support the smelter. | 05-06-2010 |
| 20100242683 | PROCESS FOR TREATING EXHAUST GAS GENERATED DURING WATER-GRANULATION OF SLAG AND SYSTEM FOR SAID TREATMENT - The present invention provides a process for treating a exhaust gas which is generated when slag discharged from a smelting furnace for non-ferrous metal is water-granulated. There is provided a process for treating an exhaust gas, which is generated during water granulation of slag discharged from a smelting furnace for non-ferrous metal, containing the water vapor as a major component and metal fumes, the process comprising a step of treating the exhaust gas by a wet electrostatic precipitator. | 09-30-2010 |
| 075639000 | Treating material in gaseous suspension | 1 |
| 20100024601 | METHOD FOR OBTAINING COPPER AND PRECIOUS METALS FROM COPPER-IRON SULPHIDE ORES OR ORE CONCENTRATES - Process for extracting copper and precious metals from copper and iron bearing ores, ore concentrates or minerals, comprising the following steps:
| 02-04-2010 |
| 075640000 | Treating slag or dross | 4 |
| 20090293678 | COPPER SMELTING METHOD - A copper smelting method includes: supplying an oxygen-enriched gas, a solvent, and a copper concentrate into a furnace, while not supplying a coke material; and supplying pig iron to slag that is generated in the furnace. | 12-03-2009 |
| 20100050813 | 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 in an electrical furnace; and a charging step of charging the slag into one of the smelting furnace or another smelting furnace for treating copper concentrate and generating matte as repeating flux if copper grade of slag generated in the first refining step is higher than 0.8 weight %. | 03-04-2010 |
| 20150307959 | METHOD AND DEVICE FOR DEPLETING COPPER SMELTING SLAG - A method and device for depleting copper smelting slag. The method comprises mixing copper smelting molten slag ( | 10-29-2015 |
| 20150322546 | METHOD AND DEVICE FOR PRODUCING CRUDE COPPER - A method and device for producing a crude copper. The method comprises: mixing and reacting copper smelting molten slag ( | 11-12-2015 |
| 075641000 | Reduction | 4 |
| 20080196550 | METHOD OF PRODUCING AN OXYGEN-FREE COPPER WIRE MATERIAL BY A CONTINUOUS CAST-ROLLING METHOD USING A ROTATIONAL MOVABLE MOLD - A method of producing an oxygen-free copper wire material, containing: continuously guiding a molten copper obtained by melting electric copper, into a tundish through a conduit; injecting the molten copper in the tundish, into a rotational movable mold; cooling and solidifying the molten copper, to form an ingot; and continuously drawing the ingot out of the mold, followed by continuous rolling; the method further containing: allowing the molten copper in the conduit to react with a solid reducing agent, under blowing an inert gas thereinto; allowing the molten copper in the tundish to react with a solid reducing agent, under blowing an inert gas thereinto; and adding a phosphorus compound to the molten copper, so that the phosphorus content in the ingot would be from 1 to 10 ppm; and controlling the temperature of the molten copper in the tundish from 1,085 to 1,100° C. | 08-21-2008 |
| 20120227543 | CONTINUOUS FIRE REDUCTION OF LIQUID COPPER - This invention refers to a pyrometallurgical method for the continuous reduction of oxidized copper through combustion gases in countercurrent to the continuous gravitational flow of liquid copper that disperses through a reactor with a bed covered with ceramic grains. | 09-13-2012 |
| 075643000 | Treating matte or sulfide | 2 |
| 20100154595 | Anode Refinement Method for High-sulfur Content Coarse Copper - The invention makes public an anode refinement method for high-sulfur content coarse copper: while high-sulfur coarse copper liquid from flash converting furnace flows to the anode furnace through a chute, inert gas is continuously added, to make the copper liquid boiling and improve discharging of the SO | 06-24-2010 |
| 075645000 | With prior production of matte or sulfide | 1 |
| 20100071510 | METHOD FOR OBTAINING COPPER FROM CUPRIFEROUS ARSENOSULPHIDE AND/OR ANTIMONY SULPHIDE ORES OR ORE CONCENTRATES - Process for extracting copper from copper-bearing arsenic sulfide and/or antimony sulfide ores, ore concentrates or minerals, comprising the following steps:
| 03-25-2010 |
| 075646000 | Treating molten Copper(Cu) | 5 |
| 20120042751 | Ultrasonic Device with Integrated Gas Delivery System - Methods for degassing and for removing impurities from molten metals are disclosed. These methods can include operating an ultrasonic device in a molten metal bath, and adding a purging gas into the molten metal bath through the tip of the ultrasonic device. | 02-23-2012 |
| 20130118309 | LEAD FREE DEZINCIFICATION ALLOY AND METHOD OF MAKING SAME - A method of producing a brass is disclosed. The alloy contains trace amounts of iron, manganese or aluminum. Phosphorous is added to a zinc, copper melt and combined with the iron, manganese and aluminum to form intermetallics. Additional phosphorous is added so the melt contains between about 0.08 to 0.15% phosphorous. A low lead brass alloy is provided. The alloy has tin in the range of 0.15% to 0.35%. | 05-16-2013 |
| 075648000 | Adding gas | 3 |
| 075649000 | Containing gaseous Oxygen | 3 |
| 20080264209 | METHOD AND SYSTEM FOR INJECTING GAS INTO A COPPER REFINING PROCESS - A method for refining copper wherein a stream of oxygen containing gas is provided from a lance into the headspace of a refining vessel for passage to the molten copper bath within the refining vessel, and a flame envelope is provided around and along the oxygen containing gas stream for a portion of its length, wherein the flame envelope simultaneously serves to keep accretions from forming on the lance face and serves to maintain the oxygen-containing gas stream coherent. | 10-30-2008 |
| 20120036963 | COPPER ANODE REFINING SYSTEM AND METHOD - A method and system for the copper anode refining is provided in which coherent jet technology is employed to heat the molten blister copper and/or melt scrap copper charges using a melting flame, oxidize the sulfur in the molten blister copper, and reduce the oxygen in the molten blister copper using top-blown coherent jet gas streams from one or more multi-functional, coherent jet lance assemblies. The present system and method employs a microprocessor-based controller operatively controlling the flow of an oxygen-containing gas, an inert gas, a reducing agent and a fuel to the coherent jet lance. The disclosed copper anode refining system and method greatly improves copper production while lowering oxidation/reduction cycle times and minimizing NO | 02-16-2012 |
| 20140102257 | COPPER ANODE REFINING SYSTEM AND METHOD - A method and system for the copper anode refining is provided in which coherent jet technology is employed to heat the molten blister copper and/or melt scrap copper charges using a melting flame, oxidize the sulfur in the molten blister copper, and reduce the oxygen in the molten blister copper using top-blown coherent jet gas streams from one or more multi-functional, coherent jet lance assemblies. The present system and method employs a microprocessor-based controller operatively controlling the flow of an oxygen-containing gas, an inert gas, a reducing agent and a fuel to the coherent jet lance. The disclosed copper anode refining system and method greatly improves copper production while lowering oxidation /reduction cycle times and minimizing NO | 04-17-2014 |
| 075653000 | Melting Copper(Cu) in shaft furnace | 1 |
| 20110000340 | METHOD FOR REMOVING COPPER IN STEEL SCRAPS - In producing high-quality steel with use of copper-containing steel scraps as an iron source, the copper-containing steel scraps are melted with addition of carbon to produce hot metal for steelmaking, then, copper contained in the hot metal is removed by sulfur-containing flux, and sulfur contained in the hot metal is removed. With this method, the copper in the steel scraps can be removed efficiently and without the need for large facilities. Preferably, the sulfur-containing flux used is flux having Na | 01-06-2011 |
