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Class Information
Number: 423/26
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Group ib metal (cu, ag, or au) > Flotation
Description: Processes which include the step of floating or causing concentrated metal values of the mixture to rise to the top and to be skimmed off while the earthy portions of the ore are permitted to settle; see Glossary.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8685350 |
Method for separating arsenic mineral from copper-bearing material with high arsenic grade |
Apr. 1, 2014 |
| 8383070 |
Method for recovering rhenium and other metals from rhenium-bearing materials |
Feb. 26, 2013 |
| 8257671 |
Method of leaching copper sulfide ore |
Sep. 4, 2012 |
| 8221709 |
Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores |
Jul. 17, 2012 |
| 8088347 |
Process for recovering copper sulphide from copper bearing ores by froth flotation |
Jan. 3, 2012 |
| 8025859 |
Process for gold and silver recovery from a sulphide concentrate |
Sep. 27, 2011 |
| 7922788 |
Process for recovering gold and silver from refractory ores |
Apr. 12, 2011 |
| 7811534 |
Method for the treatment of copper-bearing materials |
Oct. 12, 2010 |
| 7666371 |
Method for recovering metal values from metal-containing materials using high temperature pressure leaching |
Feb. 23, 2010 |
| 7576244 |
Compounds and compositions for use as foaming or frothing agents in ore and coal flotation |
Aug. 18, 2009 |
| 7491372 |
Procedure to leach copper concentrates, under pressure and at ambient temperature, by forming a reactive gel in a sulfate-chloride medium |
Feb. 17, 2009 |
| 7482495 |
Process for making alkylene glycol ether compositions useful for metal recovery |
Jan. 27, 2009 |
| 7435405 |
Anti-oxidation method for sulfide minerals in sulfide ore |
Oct. 14, 2008 |
| 7387767 |
Recovery of nickel, cobalt, iron, silica, zinc and copper from laterite ore by sulfuric acid leaching |
Jun. 17, 2008 |
| 7219804 |
Flotation processing including recovery of soluble nonferrous base metal values |
May. 22, 2007 |
| 7018593 |
Base metal recovery from a tailings dump by bacterial oxidation |
Mar. 28, 2006 |
| 6965629 |
Method and apparatus for initiating a pulsed arc discharge for nanopowder synthesis |
Nov. 15, 2005 |
| 6953120 |
Method of recovering metal and/or oxide thereof in a slurry and tailings obtained from said method |
Oct. 11, 2005 |
| 6875254 |
Methods for detecting and extracting gold |
Apr. 5, 2005 |
| 6680034 |
Method for recovering metal values from metal-containing materials using high temperature pressure leaching |
Jan. 20, 2004 |
| H2082 |
Oxidized normal paraffinic products and their application |
Sep. 2, 2003 |
| 6251163 |
Method for recovering gold from refractory carbonaceous ores |
Jun. 26, 2001 |
| 6210648 |
Method for processing refractory auriferous sulfide ores involving preparation of a sulfide concentrate |
Apr. 3, 2001 |
| 6200377 |
Process for beneficiation of mixtures of mineral particles |
Mar. 13, 2001 |
| 5902977 |
Flotation cell and method |
May. 11, 1999 |
| 5837210 |
Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate |
Nov. 17, 1998 |
| 5807479 |
Process for recovering copper from copper-containing material |
Sep. 15, 1998 |
| 5795465 |
Process for recovering copper from copper-containing material |
Aug. 18, 1998 |
| 5792235 |
Method for recovering gold and other precious metals from carbonaceous ores |
Aug. 11, 1998 |
| 5770170 |
Recovery of zinc from sulphidic concentrates |
Jun. 23, 1998 |
| 5653945 |
Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate |
Aug. 5, 1997 |
| 5443621 |
Method for recovering gold and other precious metals from carbonaceous ores |
Aug. 22, 1995 |
| 5348713 |
Recovery of metal values from zinc plant residues |
Sep. 20, 1994 |
| 5320759 |
Selective recovery of heavy metals using xanthates |
Jun. 14, 1994 |
| 5108495 |
Method controlling a process by impedance analysis |
Apr. 28, 1992 |
| 5074993 |
Flotation process |
Dec. 24, 1991 |
| 5013359 |
Process for recovering gold from refractory sulfidic ores |
May. 7, 1991 |
| 4895597 |
Recovery of precious metals |
Jan. 23, 1990 |
| 4879022 |
Ore flotation process and use of mixed hydrocarbyl dithiophosphoric acids and salts thereof |
Nov. 7, 1989 |
| 4853114 |
Method for the depressing of hydrous, layered silicates |
Aug. 1, 1989 |
| 4851036 |
Mineral ore flotation process and apparatus |
Jul. 25, 1989 |
| 4797202 |
Froth flotation method |
Jan. 10, 1989 |
| 4793852 |
Process for the recovery of non-ferrous metal sulfides |
Dec. 27, 1988 |
| 4786318 |
Thickening of gold process slurries |
Nov. 22, 1988 |
| RE32786 |
Neutral hydrocarboxycarbonyl thiourea sulfide collectors |
Nov. 22, 1988 |
| 4747940 |
Ore flotation and tri-alkali metal-di(carboxyalkyl) dithiocarbamate and triammonium-di(carboxyalkyl) dithiocarbamate flotation agents for use therein |
May. 31, 1988 |
| 4744893 |
Polymeric sulfide mineral depressants |
May. 17, 1988 |
| 4735783 |
Process for increasing the selectivity of mineral flotation |
Apr. 5, 1988 |
| 4710361 |
Gold recovery by sulhydric-fatty acid flotation as applied to gold ores/cyanidation tailings |
Dec. 1, 1987 |
| 4663279 |
Method of beneficiation of complex sulfide ores |
May. 5, 1987 |
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