| Patents for B03D 1 - Flotation (8,101) |
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| 07/04/1978 | US4098686 Ores, phosphorous and phosphoric acids, quaternary ammonium hydroxide |
| 06/27/1978 | US4097390 Ethoxylated secondary alcohol, dialkyl sulfosuccinic acid, mono(ethoxylated alcohol) carboxylate ester of a sulfosuccinic acid or salt |
| 06/27/1978 | US4097372 Method for improving clay brightness utilizing magnetic separation |
| 06/20/1978 | US4096065 Biodegradation |
| 06/13/1978 | US4094783 Centrifugal flotation separator |
| 05/23/1978 | US4090972 Tall oil fatty acid |
| 05/23/1978 | US4090955 Selective flocculation of minerals from a mixture or an ore |
| 05/23/1978 | US4090867 Complexing with diphenylguanidine |
| 05/09/1978 | US4088716 Material treating apparatus including pneumo-hydraulic vibrator |
| 04/25/1978 | US4086160 Treatment of solids-liquid-gas mixtures |
| 03/28/1978 | US4081364 Froth flotation method for stibnite |
| 03/28/1978 | US4081363 Mineral beneficiation by froth flotation: use of alcohol ethoxylate partial esters of polycarboxylic acids |
| 03/28/1978 | US4081357 Acrylic acid or salts polymer |
| 03/14/1978 | US4078993 Processes for flotation of mineral substances |
| 03/07/1978 | US4078026 Device for dispersing gas into a liquid |
| 02/21/1978 | US4075089 Flotation cell with eccentric rotor and stator |
| 02/21/1978 | US4075076 Flotation of suspended solids with bubbles produced by electrolysis |
| 01/31/1978 | US4071447 Dewatering of wastewater treatment wastes |
| 01/24/1978 | US4070277 Apparatus for separating solids from liquids |
| 01/24/1978 | US4070276 Flotation process of lead-, copper-, uranium- and rare earth minerals |
| 01/24/1978 | US4070273 Screening, comminuting, froth flotation |
| 01/17/1978 | US4069144 Phosphate ore recovery |
| 01/10/1978 | US4067502 Flotation separation of glass from a mixture of comminuted inorganic materials |
| 01/03/1978 | US4066540 Apparatus and method for continuous froth flotation |
| 12/27/1977 | US4065385 Flotation |
| 12/27/1977 | US4065270 Adsorbed onto bubbles |
| 12/13/1977 | US4062526 Method of and apparatus for conditioning pulp |
| 11/29/1977 | US4060481 Material treating apparatus including pneumo-hydraulic vibrator |
| 11/22/1977 | US4059509 Phosphate ore flotation |
| 10/18/1977 | US4054516 Method for selectively capturing metal ions |
| 10/18/1977 | US4054442 Method for recovering scheelite from tungsten ores by flotation |
| 09/20/1977 | US4049553 Water polishing means for removing oil and other flotsam from water |
| 09/06/1977 | US4046678 Flotation of scheelite from calcite with a microbial based collector |
| 09/06/1977 | US4046677 Method for separating large-sized film-like plastics |
| 08/30/1977 | US4045335 Froth flotation |
| 08/23/1977 | US4043902 Tri-carboxylated and tetra-carboxylated fatty acid aspartates as flotation collectors |
| 08/23/1977 | US4043455 Beneficiation of fluorspar ore |
| 08/09/1977 | US4040950 Concentration of ore by flotation with solutions of aqueous dithiophosphates and thionocarbamate as collector |
| 08/09/1977 | US4040949 Cellulose acetates or nitrates; gas bubbles, flotation |
| 08/09/1977 | US4040519 Froth flotation process for recovering sheelite |
| 08/02/1977 | US4039466 Polyoxyalkylene groups, sulfonic, sulfate, phosphate groups |
| 07/26/1977 | US4038615 Elastic surface wave device |
| 07/26/1977 | US4038179 Hydrochloric acid flotation process for separating feldspar from siliceous sand |
| 07/19/1977 | US4036746 Flotation with amine-stabilized dialkyl dithiophosphates |
| 07/12/1977 | US4034863 Partial esters of polycarboxylic acids |
| 06/07/1977 | US4028235 Conditioning with a polyglycerol |
| 06/07/1977 | US4028229 Froth flotation |
| 05/31/1977 | US4026799 Commercial cleaning detergents |
| 05/17/1977 | US4024218 Process for hydrometallurgical upgrading |
| 05/10/1977 | US4022696 Paper, pulp industries |
| 05/10/1977 | US4022686 Benzotriazole |
| 05/10/1977 | US4022653 Process for separating soap from black liquor |
| 03/29/1977 | US4014474 Method for treating particulate masses from complex ores or ore products by froth flotation |
| 03/08/1977 | US4011072 Flotation of oxidized copper ores |
| 02/15/1977 | US4008151 Process for enrichment, by flotation, of phosphate ores with gangues containing carbonates |
| 02/01/1977 | US4006014 Recovering copper minerals from oxidized ores |
| 01/11/1977 | US4002127 Cyclone structure |
| 12/28/1976 | US4000175 Polyfluorinated quaternary ammonium salts |
| 12/14/1976 | US3997444 Sewage settling tank |
| 11/16/1976 | US3991781 Apparatus for and method of automatically cleaning an obstructed valve |
| 11/09/1976 | US3990966 Flotation process for purifying calcite |
| 11/09/1976 | US3990965 Aminoplast or phenoplast polymer |
| 11/02/1976 | US3989608 Flotation process for removal of precipitates from electrochemical chromate reduction unit |
| 10/19/1976 | US3986954 Method and apparatus for clarifying contaminated liquids |
| 10/12/1976 | US3985650 Lead alloy, a polyolefin, a polystyrene and ebonite |
| 10/12/1976 | US3985645 Scheelite flotation |
| 10/05/1976 | US3984001 Bubble-dispersing apparatus |
| 09/07/1976 | US3979282 Flotation of fine-grained materials |
| 08/31/1976 | US3977970 Water treatment, saturation with air or gas, gravity filter |
| 08/24/1976 | US3976566 Froth flotation method for the recovery of minerals by means of quaternary phosphonium nitrites and ternary phosphine dinitrites |
| 08/24/1976 | US3976565 Froth flotation method for the recovery of minerals by means of quaternary ammonium nitrites and ternary phosphine dinitrites |
| 08/24/1976 | US3976251 Separation of magnesite from its contaminants by reverse flotation |
| 08/17/1976 | US3975496 Process for settling red mud in the digestion of bauxite |
| 08/17/1976 | US3975265 Froth flotation method for the recovery of minerals by means of ternary sulfonium nitrites and ternary stibine dinitrites |
| 08/17/1976 | US3975264 Flotation of copper sulfide ores with improved thionocarbamates |
| 08/10/1976 | US3974067 Method for improving clay brightness utilizing magnetic separation |
| 08/10/1976 | US3973734 Froth flotation process |
| 08/03/1976 | US3972815 Mixing apparatus |
| 07/27/1976 | US3971836 Amine-stabilized dialkyl dithiophosphates |
| 07/13/1976 | US3969216 Flotation separation |
| 07/06/1976 | US3968032 Process for concentrating lead and silver by flotation in products which contain oxidized lead |
| 06/22/1976 | US3965034 Method for breaking foams and apparatus useful therefor |
| 06/22/1976 | US3964997 Concentration of gold, sulphide minerals and uranium oxide minerals by flotation from ores and metallurgical plant products |
| 06/15/1976 | US3963768 Process for the preparation of thiocarbamic acid O-esters |
| 06/08/1976 | US3961940 Artificial rutile, magnetic separation, flotation, xanthates, dithiophosphates |
| 06/01/1976 | US3960715 Silicious iron ore, metal compound |
| 05/25/1976 | US3959481 Method of protecting plants from fungal diseases using furan-3-carboxamide derivatives |
| 05/25/1976 | US3959139 Liquid purification system |
| 05/25/1976 | US3959131 Apparatus and method for removing pollutants from wastewater |
| 05/04/1976 | US3954450 Recovery of lead, zinc and iron sulfide |
| 04/27/1976 | US3953552 Agitation flotation cell for the preparation of minerals and coals |
| 04/27/1976 | US3953151 Agitator flotation cell for the preparation of minerals and coals |
| 04/20/1976 | US3951786 Oxidizing method in froth flotation of minerals |
| 03/02/1976 | US3941688 Method for separation of mixture of polyester and cellulose derivative |
| 02/17/1976 | US3939070 Method and installation for the treatment of waste water to form useful water |
| 02/03/1976 | US3936294 Sphalerite, flotation, cupric chloride or carbonate |
| 01/27/1976 | US3935104 Automatic foam remover for flotation tanks |
| 01/20/1976 | US3933633 Flotation |
| 01/20/1976 | US3933625 Electrical preconditioning in a selective flotation of sulfide ores |
| 01/13/1976 | US3932271 Electric preconditioning in selective flotation of oxidic type ores |