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Class Information
Number: 75/634
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > At 300 degrees c or greater (e.g., pyrometallurgy, etc.) > Nonferrous > Noble metal, singly or in combination > Silver(ag)
Description: Process in which Silver (Ag) is produced or a metal that contains over 50 percent by weight Silver is treated.










Sub-classes under this class:

Class Number Class Name Patents
75/635 Recovering silver(ag) from photographic material 3
75/636 Reduction 13


Patents under this class:

Patent Number Title Of Patent Date Issued
8377166 Reduction of metal chloride Feb. 19, 2013
8287804 Method for recovering metal from target and method for manufacturing target Oct. 16, 2012
7033415 Methods of controlling nanoparticle growth Apr. 25, 2006
6827837 Method for recovering trace elements from coal Dec. 7, 2004
6602319 Process for the recovery of gold and silver from used refractory bricks Aug. 5, 2003
6555010 Solution mining process for removing metals from aqueous solution Apr. 29, 2003
6231637 Process for producing high-purity silver materials May. 15, 2001
5403380 Method for producing easily volatile metals, such as zinc, lead, mercury and cadmium, of sulfidic raw materials Apr. 4, 1995
5279644 Fire refining precious metals asay method Jan. 18, 1994
5232486 One step process for the treatment of Parkes desilvering crust to recover zinc and produce a suitable feed for cupellation Aug. 3, 1993
5221325 Process for recovering silver oxide and metals from spent silver oxide button cells Jun. 22, 1993
5085836 Process for desilvering silver halide processing fluids Feb. 4, 1992
5085692 Recovery of silver values from chlorides including silver chloride Feb. 4, 1992
5074910 Process for recovering precious metals from sulfide ores Dec. 24, 1991
5067987 Method of manufacturing a silver alloy which is blackened throughout its bulk Nov. 26, 1991
4955482 Screen cleaning in cil & cip systems Sep. 11, 1990
4734129 Recovery of metals from their alloys with lead using consummable lance and apparatus Mar. 29, 1988
4695317 Method of treating silicate ore containing gold and silver Sep. 22, 1987
4657586 Submerged combustion in molten materials Apr. 14, 1987
4613365 Method for recovering precious metals Sep. 23, 1986
4608083 Method for recovering the valuable metal content of contaminated copper raw material Aug. 26, 1986
4581064 Treatment of anode slimes in a top blown rotary converter Apr. 8, 1986
4564391 Method for the recovery of silver from silver zeolite Jan. 14, 1986
4529444 Method for separating solutions Jul. 16, 1985
4514221 Method of smelting zinc by injection smelting Apr. 30, 1985
4451289 Process for extracting non-ferrous metals from iron-bearing scraps May. 29, 1984
4416692 Process for extracting gold, silver, platinum, lead, or manganese metals from ore Nov. 22, 1983
4397686 Method for refining precious metals Aug. 9, 1983
4350524 Process for removal of base metal impurities from molten silver with sulfur hexafluoride Sep. 21, 1982
4164418 Method of recovering valuable metals from zinc bearing materials and blast furnace relevant thereto Aug. 14, 1979
4162915 Process for treating lead-copper-sulphur charges Jul. 31, 1979
4135923 Extraction of metals Jan. 23, 1979











 
 
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