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Class Information
Number: 75/722
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > Below 300 degrees c > Using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) > Involving organic compound containing metal or organic agent for agglomerating metal
Description: Process wherein an organic compound containing a metal (e.g., complex, solvent, resin, etc.) is involved at any stage in the process or process wherein an organic agent for agglomerating free metal (e.g., collecting agent, flocculation agent, flotation agent, etc.) is involved.

Sub-classes under this class:

Class Number Class Name Patents
75/723 Natural or synthetic polymer 42

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8702838 Method for recovering metal, and reagent and kit for recovery of metal for use in the same Apr. 22, 2014
8491701 Methods and systems for leaching a metal-bearing ore for the recovery of a metal value Jul. 23, 2013
8372360 Controlled metal leach recovery circuit Feb. 12, 2013
8372361 Copper recovery circuit Feb. 12, 2013
8282705 Method for recovering metals from a spent catalyst composition Oct. 9, 2012
8268038 High temperature leaching process Sep. 18, 2012
8118907 Methods and systems for leaching a metal-bearing ore for the recovery of a metal value Feb. 21, 2012
8062614 Methods for improving the recovery of metal leaching agents Nov. 22, 2011
8003064 Controlled copper leach recovery circuit Aug. 23, 2011
7998244 Process of treating metal bearing crushed rock to control respirable dust during transport in the process including a metal concentrating circuit Aug. 16, 2011
7985277 Process for extracting gold from gold-bearing ore Jul. 26, 2011
7857888 Method for separation and recovery of noble metals Dec. 28, 2010
7708910 Ink for ink jet printing and method for preparing the same May. 4, 2010
7686865 Method and system for recovering metal from metal-containing materials Mar. 30, 2010
7189380 Extraction of metals with diquaternary amines Mar. 13, 2007
7166144 Interlaced series parallel configuration for metal solvent extraction plants Jan. 23, 2007
6958308 Deposition of dispersed metal particles onto substrates using supercritical fluids Oct. 25, 2005
6953120 Method of recovering metal and/or oxide thereof in a slurry and tailings obtained from said method Oct. 11, 2005
6951960 Method for removing impurities from solvent extraction solutions Oct. 4, 2005
6632264 Gold recovery from thiosulfate leaching Oct. 14, 2003
6558448 Photobiomolecular metallic particles and films May. 6, 2003
6455594 Method for producing platinum colloid, and platinum colloid produced by the same Sep. 24, 2002
6428597 Heap leach agglomeration/percolation extraction aids for enhanced gold and silver recovery Aug. 6, 2002
6395062 Process for recovery of metals from metal-containing ores May. 28, 2002
6264720 Separation of heavy metals and materials for use in this Jul. 24, 2001
6203925 Porous metal and method of preparation thereof Mar. 20, 2001
6179899 Preparation of fine aluminum powders by solution methods Jan. 30, 2001
RE36990 Chemical process for the recovery of metal from an organic complex Dec. 19, 2000
6132491 Method and apparatus for dissociating metals from metal compounds extracted into supercritical fluids Oct. 17, 2000
6077329 Selection of size of aluminum particles prepared by solution method Jun. 20, 2000
5885321 Preparation of fine aluminum powders by solution methods Mar. 23, 1999
RE36118 Chemical process of separating metals from an organic complex Mar. 2, 1999
5759410 Process for recovering mercapto-s-triazines from silver precipitate Jun. 2, 1998
5695645 Methods for removing silver from spent photoprocessing solution Dec. 9, 1997
5484470 Enhancement of gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds Jan. 16, 1996
5478376 Method for the separation of rhodium and/or iridium from solution Dec. 26, 1995
5453297 Process for producing finely divided metals deposited on oxidized metals Sep. 26, 1995
5447552 Process for the extraction and separation of nickel and/or cobalt Sep. 5, 1995
5433855 Process for extracting metal values from aqueous solution Jul. 18, 1995
5429660 Method for the recovery of gold value Jul. 4, 1995
5419834 Precipitating agent for the precipitation of heavy metals May. 30, 1995
5393892 Processes for removing, separating and concentrating lead, thallium, alkali metals, alkaline earth metals from concentrated matrices using macrocyclic polyether cryptand ligands bonded to inor Feb. 28, 1995
5389124 Method for the recovery of gold value Feb. 14, 1995
5378262 Process for the extraction and separation of nickel and/or cobalt Jan. 3, 1995
5342430 Passivation of methylchlorosilane fines Aug. 30, 1994
5332420 Chemical process of separating metals from an organic complex Jul. 26, 1994
5256188 Process for the separation of rhodium from organic solutions Oct. 26, 1993
5250101 Process for the production of fine powder Oct. 5, 1993
5228903 Method for stripping metals in solvent extraction Jul. 20, 1993
5221525 Solvent extraction of gallium from acidic solutions containing phosphorus Jun. 22, 1993

1 2 3

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