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Class Information
Number: 209/166
Name: Classifying, separating, and assorting solids > Fluid suspension > Liquid > Floating > Buoyant material > Bubbles > Processes > With modifying agents
Description: Processes of bubble flotation of some constituents of a mixture, but not others, in which some reagent is employed to modify the factors in the flotation.


Sub-classes under this class:

Class Number Class Name Patents
209/167 Preferential 259


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
7618517 Method and apparatus for monitoring liquid and solid contents in a froth Nov. 17, 2009
7585407 Processing asphaltene-containing tailings Sep. 8, 2009
7576244 Compounds and compositions for use as foaming or frothing agents in ore and coal flotation Aug. 18, 2009
7516849 Froth flotation process with pH modification Apr. 14, 2009
7482495 Process for making alkylene glycol ether compositions useful for metal recovery Jan. 27, 2009
7461745 Flotation of sulfide mineral species with oils Dec. 9, 2008
7393462 Process and reagent for separating finely divided titaniferrous impurities from Kaolin Jul. 1, 2008
7389881 Flotation Jun. 24, 2008
7381305 Method and apparatus for monitoring liquid and solid contents in a froth Jun. 3, 2008
7360656 Method to improve the cleaner froth flotation process Apr. 22, 2008
7314139 Process for sulphide concentration Jan. 1, 2008
7311206 Quaternary ammonium compounds for froth flotation of silicates from an iron ore Dec. 25, 2007
7299930 Collecting agent comprising ammoniated compounds (primary, secondary, tertiary amines), for use in the process of grinding and/or floating copper, molybdenum, zinc, and other contained mineral Nov. 27, 2007
7275643 Environmentally safe promoter for use in flotation separation of carbonates from minerals Oct. 2, 2007
7219804 Flotation processing including recovery of soluble nonferrous base metal values May. 22, 2007
7172074 Concentration/calcination process of zinc silicated minerals and concentrate zinc silicate based product Feb. 6, 2007
7165680 Selective flotation agent and flotation method Jan. 23, 2007
7152741 Use of ozone to increase the flotation efficiency of sulfide minerals Dec. 26, 2006
7150357 Selective recovery of minerals by flotation Dec. 19, 2006
7104404 Collecting agent for sulphidic ores, the production and use thereof Sep. 12, 2006
7051881 Collector for non iron metal sulphide preparation May. 30, 2006
7028845 PH adjustment in the flotation of sulphide minerals Apr. 18, 2006
7014048 Composition formed of mercaptans which can be used in a process for the flotation of ores Mar. 21, 2006
7011216 Process for the beneficiation of sulfide minerals Mar. 14, 2006
7007805 Hydroxamate composition and method for froth flotation Mar. 7, 2006
7004326 Arsenide depression in flotation of multi-sulfide minerals Feb. 28, 2006
6988623 Beneficiation of sulfide minerals Jan. 24, 2006
6959815 Selective reactive oily bubble carriers in flotation processes and methods of generation and uses thereof Nov. 1, 2005
6945407 Flotation of sulphide minerals Sep. 20, 2005
6915908 Method of decontaminating soil Jul. 12, 2005
6889844 Collectorless flotation May. 10, 2005
6874640 Process for separation of bastnaesite from weathered bastnaesite barite fluorite ores Apr. 5, 2005
6871743 Methods of increasing flotation rate Mar. 29, 2005
6827220 Flotation of sulfide mineral species with oils Dec. 7, 2004
6820746 Process for the beneficiation of sulfide minerals Nov. 23, 2004
6799682 Method of increasing flotation rate Oct. 5, 2004
6778881 Monitoring and control of a froth flotation plant Aug. 17, 2004
6739454 Mineral collector compositions and processes for making and using same May. 25, 2004
6732867 Beneficiation of sulfide minerals May. 11, 2004
6712217 Agent for dressing phosphate ore Mar. 30, 2004
6685027 Method of concentrating phosphates from their ores Feb. 3, 2004
6679383 Flotation of platinum group metal ore materials Jan. 20, 2004
6568537 Composition for the flotation of useful minerals products May. 27, 2003
6536595 Mineral ore flotation aid Mar. 25, 2003
6533848 Technology and methodology for the production of high quality polymer filler and super-pozzolan from fly ash Mar. 18, 2003
6484883 Use of cupric chloride in zinc flotation Nov. 26, 2002
6427843 Flotation separation of valuable minerals Aug. 6, 2002
6425485 Air-assisted density separator device and method Jul. 30, 2002
6409022 Mineral collector compositions and processes for making and using same Jun. 25, 2002
6390303 Method for optimizing flotation recovery May. 21, 2002

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