| Patents for B03D 1 - Flotation (8,101) |
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| 08/20/1998 | DE19646494A1 Slurry separation, e.g. removal of heavy slurry, e.g. dye, from lighter slurry |
| 08/18/1998 | US5795466 Froth flotation |
| 08/18/1998 | US5795465 Process for recovering copper from copper-containing material |
| 08/13/1998 | WO1998034716A1 Method of processing desulfurization absorption liquid and apparatus therefor |
| 08/12/1998 | EP0792186B1 Combustion exhaust gas scrubbing process and device |
| 08/04/1998 | US5789372 Surfactant mixtures having improved surface-active properties |
| 07/30/1998 | WO1998032538A2 Apparatus and method for induced air flotation |
| 07/30/1998 | DE19702181A1 Funnel nozzle with flow-baffling trip wires to break up laminar surface boundary layer |
| 07/29/1998 | EP0854844A1 Biological method of treating sewage containing high concentrations of sludge |
| 07/21/1998 | CA2070146C Method for concentrating ore slurries by means of intensive agitation conditioning and simultaneous flotation, and an apparatus for the same |
| 07/14/1998 | US5779895 Granular media filter including media settler assembly |
| 07/08/1998 | EP0851783A1 Novel aromatic and aliphatic sulfonates and properties and applications thereof |
| 07/07/1998 | US5776335 Gas entrainment flotation reactor with arrangements for separating solids from liquids |
| 07/02/1998 | WO1998028082A1 Flotation separation methods and systems for dewatering suspensions of microalgae and extracting components therefrom |
| 07/01/1998 | CN1186456A Method of depressing non-sulfide cilicate gangue minerals |
| 07/01/1998 | CN1186455A Method of depressing non-sulfide silicate gangue minerals |
| 06/30/1998 | US5772776 Process for the recovery of heavy metals such as lead from metal contaminated soil |
| 06/30/1998 | US5772042 Method of mineral ore flotation by atomized thiol collector |
| 06/23/1998 | US5770170 Recovery of zinc from sulphidic concentrates |
| 06/23/1998 | US5770050 Flotation apparatus |
| 06/16/1998 | US5766484 Separating liquid containing waste materials; improved flow pattern due to the discharge outlet and inlet located adjacently |
| 06/16/1998 | US5766448 Pressure screening system for processing contaminated pulp fiber |
| 06/09/1998 | US5762781 Flotation apparatus and process |
| 06/03/1998 | EP0844911A1 Flotation tank impeller |
| 06/03/1998 | CN1183754A Apparatus for producing air-saturated water |
| 06/02/1998 | US5759408 Method and equipment for treatment of a liquid flow to be cleaned and passed into a flotation plant or equivalent |
| 06/02/1998 | US5759390 Particle separator |
| 05/27/1998 | CN1182641A Anion type collector and preparing method and usage thereof |
| 05/26/1998 | US5756622 Polymeric sulfide mineral depressants |
| 05/26/1998 | US5755973 Portable wastewater treatment method |
| 05/20/1998 | CN1181996A Deep physical coal deliming and desulphurizing technology |
| 05/20/1998 | CN1038397C Floatation using alpha-nitrosyl phosphate ester as sulfide mineral collector |
| 05/19/1998 | US5753104 Physical separation processes for mineral slurries |
| 05/13/1998 | CN1038313C Coal flotation process |
| 05/06/1998 | CN1038232C Froth flotation of silica or siliceous gaxgue |
| 05/06/1998 | CN1038231C Selective capturing agent for bastnaesite-(La) ore |
| 05/05/1998 | US5746910 Frothless flotation apparatus |
| 05/05/1998 | US5746904 Method, apparatus and system for continuously treating water body |
| 04/30/1998 | WO1998017395A1 A method for processing refractory auriferous sulfide ores involving preparation of a sulfide concentrate |
| 04/29/1998 | EP0683693B1 Method and apparatus for separation by flotation |
| 04/22/1998 | CN2279216Y Column flotator energy-saving microfoam generator |
| 04/22/1998 | CN2279215Y Multi-stage microfoam column flotator |
| 04/09/1998 | WO1998014542A1 Surfactant-containing formulations |
| 04/07/1998 | US5736034 Contacting water with vortex air-water bubble pattern |
| 04/02/1998 | WO1998013142A1 Compositions and methods for ore beneficiation |
| 04/02/1998 | DE19640186A1 Tensidhaltige Formulierungen Surfactant Formulations |
| 04/02/1998 | CA2266902A1 Compositions and methods for ore beneficiation |
| 03/25/1998 | EP0830209A1 Method of depressing non-sulfide silicate gangue minerals |
| 03/25/1998 | EP0830208A1 Method of depressing non-sulfide silicate gangue minerals |
| 03/24/1998 | US5730784 Oxidation to sulfur dioxide |
| 03/18/1998 | EP0829305A2 Flotation type separator |
| 03/18/1998 | CN1037748C Side-stream inclined plate sink-float solid-liquid separation method and its equipment |
| 03/17/1998 | US5728304 Method and apparatus for dissolved air flotation and related waste treatments |
| 03/11/1998 | CA2215101A1 Bubble floating type separator |
| 03/10/1998 | US5725764 Apparatus for clarifying contaminated fluids |
| 03/05/1998 | WO1998008610A1 A process for purification of a fibre suspension |
| 03/05/1998 | CA2264185A1 A process for purification of a fibre suspension |
| 03/04/1998 | CN1037586C Method for preparation of collecting agent of oxidized ore |
| 02/26/1998 | WO1998007689A1 Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on dicarboxyclic acid du esters |
| 02/26/1998 | DE19633497A1 Amphiphile Verbindungen mit mindestens zwei hydrophilen und mindestens zwei hydrophoben Gruppen auf der Basis von Dicarbonsäurediestern Amphiphilic compounds having at least two hydrophilic and at least two hydrophobic groups based on dicarboxylic acid diesters |
| 02/25/1998 | CN1174100A Wet asbestos floating and modifying process |
| 02/24/1998 | US5720873 Separating silicate impurities in calcite by froth flotation using a mixture of a hydrophobic quaternary amine and an adduct of an alkylene oxide and amine compound |
| 02/17/1998 | US5718801 Using nonionic surfactants |
| 01/28/1998 | CN1171767A Waste water treatment and plant |
| 01/28/1998 | CN1171299A Mineral separation method for copper nickel sulfide ore |
| 01/21/1998 | CN1170636A Blends of carboxylic acids and organic amines in ore flotation |
| 01/13/1998 | US5707530 Method for clarifying contaminated fluids |
| 01/13/1998 | US5707488 Screen/vortex apparatus for cleaning recycled pulp related process |
| 01/07/1998 | EP0815943A1 An apparatus for carrying out a flotation process |
| 01/07/1998 | CN1169339A Blends of carboxylic acids and organic amines with improved fluidity and stability |
| 01/06/1998 | CA1339617C Method of separating a higher vapor pressure component and/or particulate matter from a lower vapor pressure component |
| 01/02/1998 | DE19625456A1 Slurry separation, e.g. removal of heavy slurry, e.g. dye, from lighter slurry |
| 12/31/1997 | CN1169133A Container for liquid with disperson device |
| 12/30/1997 | US5702612 Mixing effluent with flotation reagent, dissolving gas into effluent, introducing mixture into flotation cell, promoting release of dissolved gas as bubbles containing material to be recovered |
| 12/30/1997 | US5702591 Flotation method for non-ferrous metal variable ores |
| 12/29/1997 | EP0813450A1 Dispersion water nozzle |
| 12/23/1997 | US5700369 Process for adsorboaggregational flotation of Carlin type natural gold ore dressing |
| 12/18/1997 | WO1997047391A1 New collector composition for flotation of activated sphalerite |
| 12/04/1997 | WO1997045203A1 Method and apparatus for controlling froth flotation machines |
| 12/04/1997 | WO1997045186A1 Novel aromatic and aliphatic sulfonates and properties and applications thereof |
| 12/04/1997 | CA2257158A1 Method and apparatus for controlling froth flotation machines |
| 12/04/1997 | CA2228430A1 Novel aromatic and aliphatic sulfonates and properties and applications thereof |
| 12/04/1997 | CA2205886A1 Blends of carboxylic acids and organic amines with improved fluidity and stability |
| 12/04/1997 | CA2205885A1 Blends of carboxylic acids and organic amines in ore flotation |
| 12/03/1997 | EP0809606A1 Pressurized water flotation apparatus |
| 12/03/1997 | CN1166382A Ore-dressing trapping agent |
| 12/02/1997 | US5693692 Depressant for flotation separation of polymetallic sulphide ores |
| 12/02/1997 | US5693263 Sparger for producing gas bubbles in a liquid |
| 12/02/1997 | US5693222 Apparatus and method for improved high-efficiency dissolved air flotation fluid processing |
| 11/26/1997 | EP0693968A4 Method of mineral ore flotation by atomised thiol collector |
| 11/26/1997 | CN1036507C Activator-frother compsn. of good selectivity which can be used as additional reagent for the flotation |
| 11/25/1997 | US5690834 Flotation |
| 11/25/1997 | US5690812 Process and apparatus for the separation of solid matter via flotation |
| 11/19/1997 | EP0689521A4 Compact clarifier system for municipal waste water treatment |
| 11/19/1997 | CN1165056A Synthetic technology for rare-earth mineral collector |
| 11/13/1997 | WO1997041962A1 Inductive radial-discharge funnel-shaped nozzle |
| 11/13/1997 | WO1997041961A1 Flotation plant |
| 11/13/1997 | DE19618529A1 Flotation process and devices for de-inking pulped waste paper |
| 11/13/1997 | DE19618428A1 Treating water to remove biological pollution |
| 11/11/1997 | US5685899 Process for conditioning kaolin clays prior to removing impurities |