| Patents for B03D 1 - Flotation (8,101) |
|---|
| 02/05/1992 | EP0469195A1 Method and apparatus for mineral matter separation |
| 02/05/1992 | CN1015340B Process for separation of antimony sulfide ore from arsenopyrite and reagents used |
| 01/28/1992 | US5084254 Natural calcium carbonate ores |
| 01/28/1992 | US5084161 Method and apparatus for the removal of light material from a fiber suspension |
| 01/23/1992 | WO1992000789A1 Reclamation system for contaminated material |
| 01/21/1992 | US5082554 Flotation process using metal salts of phosphorus acids |
| 01/19/1992 | CA2047318A1 Device for the gassing of liquids |
| 01/14/1992 | US5080780 Single cell vertical static flow flotation unit cross-reference to related applications |
| 01/08/1992 | EP0465312A1 Screening apparatus for a mixture of paper pulp and contaminants |
| 01/08/1992 | CN1057598A Froth flotation of silica or siliceous gaxgue |
| 01/07/1992 | US5078921 Froth flotation apparatus |
| 01/07/1992 | US5078861 Water clarifying apparatus |
| 01/07/1992 | US5078860 Conditioning ore with bisulfite and causticized starch; then dialkylthiophosphate or dithiophosphonate |
| 01/02/1992 | EP0463823A2 Froth flotation of silica or siliceous gangue |
| 12/31/1991 | US5077437 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinane and their oxides or sulfides |
| 12/29/1991 | CA2045835A1 Froth flotation of silica or siliceous gangue |
| 12/26/1991 | WO1991019572A1 Flotation cyclone |
| 12/24/1991 | US5074994 Sequential and selective flotation of sulfide ores |
| 12/24/1991 | US5074993 Flotation process |
| 12/17/1991 | US5073253 Froth level measurement |
| 12/16/1991 | WO1991019571A1 A flotation process using metal salts of phosphorus acids |
| 12/16/1991 | WO1991019570A1 A flotation process using a mixture of collectors |
| 12/16/1991 | WO1991019569A1 Ore flotation process using carbamate compounds |
| 12/16/1991 | CA2066426A1 Ore flotation process using carbamate compounds |
| 12/16/1991 | CA2062768A1 Flotation process using metal salts of phosphorus acids |
| 12/16/1991 | CA2062767A1 Flotation process using a mixture of collectors |
| 12/11/1991 | EP0460811A1 Coal dewatering |
| 12/11/1991 | CN1015052B Chemical rule for utilizing the flotation technique to purify magnesite ore |
| 12/11/1991 | CN1015051B Differential flotation for zircon in seashore placer deposit |
| 12/10/1991 | CA1292856C Process for refining kaolin |
| 12/05/1991 | WO1991018836A1 Improved water clarifying apparatus |
| 12/04/1991 | EP0459089A1 Flotation deinking system |
| 12/03/1991 | US5069751 Froth flotation |
| 12/03/1991 | CA1292814C Process for increasing the selectivity of mineral flotation |
| 12/01/1991 | CA2041863A1 Flotation-deinking-device |
| 11/27/1991 | CN1056446A Alkylated diaryl oxide monosulfonate collectors useful in flotation of minerals |
| 11/27/1991 | CN1056445A Depression of flotation of silica or siliceous gangue in mineral flotation |
| 11/26/1991 | WO1991018674A1 Process for recovering minerals from non-pyritiferous ores by flotation |
| 11/26/1991 | US5068028 Molybdenite flotation from copper sulfide/molybdenite containing materials by ozone conditioning |
| 11/26/1991 | CA2083818A1 Process for the recovery of minerals from non-sulfidic ores by flotation |
| 11/21/1991 | EP0376971B1 Process and installation for recovering reusable gas from waste through pyrolysis |
| 11/20/1991 | CN1014802B Recovery of copper, gold and silver by vulcanizing roasting at law temp.-ore dressing |
| 11/20/1991 | CN1014778B Process for fine coal cleaning |
| 11/20/1991 | CN1014777B Method and apparatus for controlling flotation cell |
| 11/19/1991 | US5066389 Flotation machine |
| 11/19/1991 | CA1292296C Fiber optic detector for flotation cell processing |
| 11/14/1991 | WO1991016986A1 A monazite beneficiation process |
| 11/13/1991 | EP0456565A1 Method for enriching andalusite by flotation |
| 11/13/1991 | EP0435985A4 A method of operating a plurality of minerals separation flotation cells |
| 11/05/1991 | US5062964 Measuring air content of foam |
| 10/30/1991 | EP0453677A1 Depression of the flotation of silica or siliceous gangue in mineral flotation |
| 10/30/1991 | EP0453676A1 Alkylated diaryl oxide monosulfonate collectors useful in the flotation of minerals |
| 10/30/1991 | CN1014499B Collection-promoting agent for selective flotating lead-zinc mine |
| 10/22/1991 | US5059309 Separation of hydrophobic from hydrophilic ore pulp particles; mixing in vertical cylinder vessel with bubbled air; energy efficient |
| 10/19/1991 | CA2014878A1 Alkylated diaryl oxide monosulfonate collectors useful in the flotation of minerals |
| 10/17/1991 | WO1991015302A1 Apparatus and method for separation of wet and dry particles |
| 10/17/1991 | WO1991015298A1 Process for obtaining minerals from non-sulphidic ores by flotation |
| 10/15/1991 | US5057209 Adding alkanolamine |
| 10/15/1991 | US5057208 Froth flotation, conditioning with n-alkyl amine |
| 10/15/1991 | US5056541 Method and apparatus for removing pollutants from contaminated soil |
| 10/09/1991 | CN1014247B Collection method for recovery of metal-containing ore from ore |
| 10/08/1991 | CA1290275C Microbubble flotation process for the separation of bitumen from an oilsands slurry |
| 10/03/1991 | WO1991014504A1 Apparatus for pulp conditioning |
| 10/02/1991 | DE4010279A1 Verfahren zur gewinnung von mineralien aus nichtsulfidischen erzen durch flotation A method for extraction of minerals from ores by flotation nonsulfidic |
| 10/01/1991 | US5053119 Beneficiation by froth flotation in presence of amino phosphonic acid or salt |
| 09/25/1991 | EP0447887A1 Apparatus for the separation of air from flotation turbid liquids |
| 09/24/1991 | US5051199 Froth flotation of mineral fines |
| 09/24/1991 | US5051165 Quality of heavy mineral concentrates |
| 09/18/1991 | CN1013929B Fiber optic detector for flotation cell processing |
| 09/18/1991 | CN1013928B Method for froth flotation of coal |
| 09/17/1991 | US5049612 Depressant for flotation separation of polymetallic sulphidic ores |
| 09/17/1991 | CA1289274C Method of concentration of rebellious oxidized copper ores |
| 09/12/1991 | DE4106866A1 Selective flotation of phosphorus minerals from ores - comprises adding synergistic combination of alkenyl-succinic acid deriv. and another co-gatherer |
| 09/11/1991 | EP0445683A2 Method of depressing readily floatable silicate minerals |
| 09/10/1991 | US5047375 Method for producing high opacifying kaolin pigment |
| 09/10/1991 | US5047149 Apparatus for the clarification of liquids, such as notably water, fruit juices, grape must or similar |
| 09/10/1991 | US5047145 Wet process for fly ash beneficiation |
| 09/10/1991 | US5047144 Process for the separation of minerals by flotation |
| 09/10/1991 | CA2037883A1 Process for the selective flotation of phosphorus minerals |
| 08/29/1991 | DE4105384A1 Selective flotation of phosphorus minerals - by using an N-acylated protein, peptide or penicillin hydrolysate as collector |
| 08/27/1991 | CA1288178C Carrier particle for the froth flotation of fine ores |
| 08/22/1991 | WO1991012080A1 Processing of mineral deposits |
| 08/21/1991 | EP0442463A1 Apparatus for continuous purification of liquids |
| 08/20/1991 | US5041211 Removal of hazadrous contaminants and reuse of metal |
| 08/17/1991 | CA2036292A1 Apparatus for continuous purification of liquids |
| 08/16/1991 | CA2035992A1 Ore flotation process and use of phosphorus-containing sulfo compounds |
| 08/14/1991 | EP0441230A1 Apparatus for separation by pressurization and flotation |
| 08/14/1991 | EP0440746A1 Surface-active fatty acid ester and/or fatty acid derivatives as collectors in the flotation of non-sulphidic ores |
| 08/13/1991 | US5039400 Flotation machine |
| 08/07/1991 | CN1013427B Process of dressing rare earth ore |
| 08/06/1991 | US5037558 Liquid separator |
| 08/06/1991 | US5037534 Flotation using alkali aluminate |
| 08/06/1991 | US5037533 Ore flotation process and use of phosphorus containing sulfo compounds |
| 08/06/1991 | CA1287415C Beryllium flotation process |
| 08/06/1991 | CA1287414C Removal of apatite gangue |
| 07/23/1991 | CA1286613C Reducing oil content of produced water by gas flotation |
| 07/17/1991 | CN1013172B Collecting agent composition for flotation of coal |
| 07/16/1991 | US5032257 Process for beneficiation of coal and associated apparatus |
| 07/10/1991 | EP0435985A1 A method of operating a plurality of minerals separation flotation cells. |
| 07/09/1991 | US5030340 Method for the depressing of hydrous silicates and iron sulfides with dihydroxyalkyl polysaccharides |