| Patents for B03D 1 - Flotation (8,101) |
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| 08/11/1981 | US4283017 Slurrying |
| 08/04/1981 | US4282089 Phosphate flotation with tribasic acids |
| 08/04/1981 | US4282087 Selective flocculation for iron values |
| 07/29/1981 | EP0032811A2 A process for the beneficiation of coal and beneficiated coal product |
| 07/28/1981 | CA1105846A1 Process and apparatus for the separation of tar and ammonia liquor effluents from coke oven plants |
| 07/21/1981 | US4279867 Flotation |
| 07/21/1981 | US4279743 Air-sparged hydrocyclone and method |
| 07/21/1981 | US4279742 Method of and apparatus for the flotation of mineral raw materials |
| 07/14/1981 | US4278640 Bubbling air, flotation |
| 07/14/1981 | US4278533 Conditioner for flotation of oxidized coal |
| 07/14/1981 | CA1105156A1 Flotation of sulfide minerals |
| 07/07/1981 | US4277347 Method for making flotable, particles suspended in a liquid by means of gas bubbles |
| 07/07/1981 | US4277331 Separation of suspended sodium chloride and sodium sulfate from aqueous sodium hydroxide |
| 07/07/1981 | US4277328 Flotation apparatus for separating impurities from a fiber suspension |
| 06/30/1981 | US4276156 Froth flotation process using condensates of hydroxyethylethylenediamines as collectors for siliceous material |
| 06/30/1981 | US4275847 Alkyl ether amines as flotation agents |
| 06/30/1981 | CA1104274A1 Separation of sulfides by selective oxidation |
| 06/23/1981 | US4274959 Apparatus for dissolving air in water and subsequent reduction of the water surface tension in flotation systems |
| 06/23/1981 | US4274951 Ore dressing process |
| 06/23/1981 | US4274950 Process for the flotation of sulfide ores |
| 06/23/1981 | US4274949 Froth separation apparatus |
| 06/23/1981 | US4274866 Flotation and sintering of synthetic manganese carbonate |
| 06/16/1981 | US4273657 Two-stage flotation purification of NaOH |
| 06/09/1981 | US4272364 Frother for coal flotation |
| 06/09/1981 | US4272250 Process for removal of sulfur and ash from coal |
| 06/09/1981 | US4272029 Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays |
| 06/09/1981 | CA1102549A1 Slurry of coal, water and dispersing agent |
| 06/03/1981 | EP0029553A1 A hydrocyclone and a method of improving separation of solids |
| 06/02/1981 | US4270927 Hydrocarbon oil slurry to form coal aggregates which can be size classified |
| 06/02/1981 | US4270926 Process for removal of sulfur and ash from coal |
| 05/27/1981 | EP0029222A2 Integrated flotation and filtration device and method for combined flotation and filtration |
| 05/26/1981 | US4269702 Ore treatment process |
| 05/26/1981 | US4269700 Flotation of inorganic materials from glass using hydrocarbon sulfonates |
| 05/19/1981 | US4268380 Froth flotation process |
| 05/19/1981 | US4268379 Cationic polymers |
| 05/19/1981 | CA1101566A1 Flotation process |
| 05/05/1981 | US4265739 Flotation machines and components thereof |
| 04/28/1981 | CA1100239A1 Emulsified ether amines and process for using same in froth flotation |
| 04/21/1981 | US4263148 Process for removing humic matter from phosphoric acid solutions |
| 04/14/1981 | US4261846 Dithiophosphate or alkylxanthate collector; substituted benzotrifluoride depressant |
| 04/14/1981 | CA1099227A1 Production of micro-bubbles for treatment of a suspension |
| 04/07/1981 | CA1099036A1 Beneficiation of phosphate ore |
| 04/07/1981 | CA1099035A1 Mechanical means for increasing the grade of a flotation cell concentrate |
| 04/01/1981 | EP0025813A1 Apparatus for water purification and/or aeration by dissolved gas flotation |
| 03/17/1981 | US4256267 Magnetic separation |
| 03/17/1981 | US4256227 Froth flotation method for recovering metal values from their ores by thiourea or substituted thiourea |
| 03/17/1981 | CA1097827A1 Process and apparatus for the flotation of mineral raw materials |
| 03/10/1981 | US4255262 Hydraulic powered mixing apparatus |
| 03/05/1981 | WO1981000527A1 Amine oxide promoters for froth flotation of mineral ores |
| 03/03/1981 | US4253970 For recovering powders from slurries |
| 03/03/1981 | US4253949 Sewage treatment-flotation apparatus |
| 03/03/1981 | US4253944 Conditioner for flotation of oxidized coal |
| 03/03/1981 | US4253942 Apparatus for the separation of mixtures of particulate solids of different density |
| 03/03/1981 | US4253614 Recovery from ores using selective flocculation |
| 02/24/1981 | US4252949 Surfactants |
| 02/24/1981 | CA1096516A1 Apparatus for separating solids from liquids |
| 02/24/1981 | CA1096515A1 Process and installation for eliminating by flotation impurities in the form of solid particles contained in a liquid |
| 02/24/1981 | CA1096514A1 Use of thiouracils as selective depressants for the flotation separation of copper and nickel sulphide minerals |
| 02/24/1981 | CA1096395A1 Flotation agents for the beneficiation of phosphate ores |
| 02/17/1981 | US4251361 For removal of hydrocarbons from water at offshore oil platforms |
| 02/17/1981 | CA1096067A1 Ore beneficiation |
| 02/17/1981 | CA1096060A1 Froth flotation |
| 02/17/1981 | CA1096059A1 No translation available |
| 02/10/1981 | CA1095640A1 Process for the concentration of sulfidic nickel ores |
| 02/10/1981 | CA1095461A1 Variable wall and vortex finder hydrocyclone classifier |
| 02/03/1981 | US4248708 Purification of flotation tailings water |
| 02/03/1981 | US4248696 Flotation separation of glass from a mixture of comminuted inorganic materials |
| 01/27/1981 | US4247391 Froth flotation cell and method of operation |
| 01/20/1981 | US4246096 Flotation process |
| 01/20/1981 | CA1094236A1 Production of high purity fluorspar and barite concentrates from a complex fluorspar ore |
| 01/13/1981 | US4244813 Method of increasing fine coal filtration efficiency |
| 01/13/1981 | CA1093715A1 Slow speed wedge bar flotation mixing device |
| 01/07/1981 | EP0021780A1 Process for removal of sulfur and ash from coal |
| 01/07/1981 | EP0021779A1 Process for removal of sulfur and ash from coal |
| 01/07/1981 | EP0021778A1 Process for removal of sulfur and ash from coal |
| 01/06/1981 | CA1093225A1 Ore flotation with an aliphatic aldoxime |
| 01/06/1981 | CA1093224A1 Froth flotation process |
| 01/06/1981 | CA1093045A1 Recovery of glass from solid waste |
| 12/30/1980 | CA1092363A1 Filtration dewatering of iron ore concentrates |
| 12/23/1980 | CA1092258A1 Froth flotation process and collector composition |
| 12/10/1980 | EP0020275A1 Process for improving the recovery of clean coal from flotation circuits |
| 12/09/1980 | US4238409 Froth flotation with petroleum oxidate-amine compositions |
| 12/09/1980 | US4238330 Flotation aids for oil-in-water emulsions |
| 12/09/1980 | CA1091248A1 Flotation reagents for the beneficiation of non- sulfide ores |
| 12/09/1980 | CA1091032A1 Flocculation of hematitic ores with acrylic acid polymer |
| 11/25/1980 | US4235811 Oil and fuel additives; catalysts for making polyisocyanurates |
| 11/18/1980 | US4234414 Phosphate beneficiation process |
| 11/18/1980 | US4234349 Apparatus for the purification of evaporated sugar solutions |
| 11/11/1980 | US4233150 Process for beneficiation of non-sulfide iron-free ores |
| 11/11/1980 | CA1089272A1 Apparatus for deinking waste paper pulp |
| 11/04/1980 | US4231867 Method and apparatus for treating heterogeneous fluid systems |
| 11/04/1980 | US4231860 Flotation machine |
| 11/04/1980 | US4231859 Steam injection in the presence of activated carbon an sulfide reagents |
| 11/04/1980 | CA1089124A1 Flotation reagent and process |
| 10/29/1980 | EP0018322A1 Method and apparatus for enriching a liquid with gases |
| 10/21/1980 | US4229293 Dewatering of slimes from phosphate ores |
| 10/21/1980 | US4229287 Tin flotation |
| 10/21/1980 | CA1088226A1 Concentration of hydrated aluminum oxide minerals by flotation |
| 10/15/1980 | EP0016914A1 Alkanolamine- fatty acid condensate conditioner for flotation of coal and a flotation process therefor |
| 10/14/1980 | US4227996 Flotation process for improving recovery of phosphates from ores |