| Patents for B03D 1 - Flotation (8,101) |
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| 09/23/1992 | EP0504203A1 Method and apparatus for effecting gas-liquid contact. |
| 09/22/1992 | US5149878 1,4-disubstituted-2,3,5,6-tetrahyddroxy-1,4-diphosphorinanes and their oxides or sulfides |
| 09/17/1992 | DE4038606A1 Cleaning vehicle washing water - using equipment comprising foam-maker, flotation sepn. tank and liquefier and foam thickener consisting of tank with conical floor and roof |
| 09/15/1992 | WO1992016459A1 Discharge valve for dissolved air flotation |
| 09/15/1992 | US5147572 Flotation composition using a mixture of collectors |
| 09/15/1992 | US5147528 Phosphate beneficiation process |
| 09/15/1992 | CA2106084A1 Discharge valve for dissolved air flotation |
| 09/15/1992 | CA1307595C Multistream, multiproduct beneficiation arrangement |
| 09/01/1992 | US5143600 Apparatus for feeding air into a flotation cell |
| 09/01/1992 | US5143599 Froth flotation, separation, thickening and acidification, classification |
| 08/19/1992 | CN1063627A Sulfrized mine trap using alpha-nitrosyl phosphate ester |
| 08/18/1992 | US5139663 Discharge valve for dissolved air flotation |
| 08/18/1992 | US5139662 Apparatus for clarifying water |
| 08/12/1992 | CN1063428A Flotation machine suitable for flotating rough and heavy granulated ores |
| 08/11/1992 | US5137574 Method for producing high opacifying kaolin pigment |
| 08/07/1992 | WO1992013640A1 Method of treating a base metal bearing material |
| 08/07/1992 | CA2101517A1 Method of treating a base metal bearing material |
| 08/05/1992 | EP0496765A1 Method and apparatus for separation by flotation in a centrifugal field |
| 08/05/1992 | CN1017686B Ore-dressing method to separate multi-metal complex minerals of cu, pb and zn |
| 07/30/1992 | WO1992012937A1 Apparatus for cleaning waters and industrial sewages containing floating materials |
| 07/30/1992 | CA2099015A1 Apparatus for cleaning waters and industrial sewages containing floating materials |
| 07/29/1992 | EP0496099A2 Flotation device |
| 07/29/1992 | EP0496012A1 Process for the selective flotation of metal ores using 2-mercaptothiazole derivatives |
| 07/29/1992 | CN2111138U Compressed-air blister generator for flotation |
| 07/29/1992 | CN1063058A Floating selection process for fluorite and its modifier compositions |
| 07/28/1992 | US5133832 Process and system for preparation of waste paper stock with short and long fiber fractionation |
| 07/22/1992 | CA2034615A1 Process for the selective flotation of metal ores using 2-mercaptothiazole derivatives |
| 07/21/1992 | US5132008 Preparation of bis(alkylthio) alkanes or bis(arylthio) alkanes and use thereof |
| 07/21/1992 | US5131980 Hydrocyclone removal of sticky contaminants during paper recycling |
| 07/21/1992 | US5131600 Alkanol amine grinding aids |
| 07/15/1992 | EP0494157A1 Flotation process for removing fillers from waste paper in the presence of polymers and copolymers. |
| 07/14/1992 | US5130037 Process for the froth flotation of oxide and salt type minerals and composition |
| 07/14/1992 | US5130029 Flotation method for purification of a liquid from solid and liquid impurities |
| 07/01/1992 | CN1017269B Pressurized flotation modules and method for pressurized from separation |
| 06/30/1992 | US5126038 Froth flotation |
| 06/25/1992 | WO1992010298A1 Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation |
| 06/23/1992 | US5124028 Froth flotation of silica or siliceous gangue |
| 06/18/1992 | WO1992011091A1 Aryl monosulfonate collectors useful in the flotation of minerals |
| 06/18/1992 | CA2098574A1 Aryl monosulfonate collectors useful in the floatation of minerals |
| 06/17/1992 | EP0490415A1 Process for the treatment of contaminated soils |
| 06/16/1992 | US5122290 Using a dialkylsulfosuccinate and mono- or dihydric alcohol |
| 06/16/1992 | US5122289 Primary or secondary amine or salt and xanthate, dithiophate, mercaptobenzothiazole, xanthogen formate or thionocarbamate |
| 06/16/1992 | US5122267 Foam fractionation filter |
| 06/16/1992 | US5122261 Flotation columns containing controlled recycling zones, bubblers for beneficiation of ores |
| 06/11/1992 | WO1992009662A1 Method for producing high opacifying kaolin pigment |
| 06/11/1992 | WO1992009360A1 Gas particle formation |
| 06/11/1992 | CA2097328A1 Method for producing high opacifying kaolin pigment |
| 06/09/1992 | US5120768 Process for separating polyethylene terephthalate from polyvinyl chloride |
| 06/09/1992 | US5120432 Process for the selective flotation of metal ores using 2-mercaptothi-azole derivatives |
| 06/08/1992 | CA2057224A1 Process of treating contaminated soils |
| 06/02/1992 | US5118408 Reducing the water and solids contents of bitumen froth moving through the launder of a spontaneous flotation vessel |
| 06/02/1992 | CA1302327C Low temperature bitumen recovery process |
| 05/26/1992 | US5116488 Gas sparged centrifugal device |
| 05/26/1992 | US5116487 Froth flotation method for recovery of ultra-fine constituent |
| 05/26/1992 | CA1301963C Ore flotation employing dimercaptothiadiazoles |
| 05/21/1992 | DE4036192A1 Suction appts. for floating matter removal in flotation tank - has suction device comprising suction hood having peripheral vertical edge completely covering tank apart from peripheral horizontal strip |
| 05/19/1992 | US5114568 Reclamation system for contaminated material |
| 05/13/1992 | CN1060978A Production method foaming agent for ore dressing |
| 05/06/1992 | EP0483524A1 Water clarification method and apparatus |
| 05/05/1992 | US5110455 Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation |
| 05/01/1992 | CA2054620A1 Flotation column |
| 04/29/1992 | CN2102801U Machinery mix flotater |
| 04/28/1992 | US5108586 Flotation machine for deinking |
| 04/28/1992 | US5108585 Slurrying; pulping; sparging; collecting agent: alkyl or alkenyl glycoside with a non-thio ionizable surfactant; selective separation |
| 04/28/1992 | US5108495 Method controlling a process by impedance analysis |
| 04/28/1992 | CA1299777C Recovery of platinum-group metals and other metal valuables |
| 04/23/1992 | DE4033223A1 Foamer-type water purifier for e.g aquarium water - which mixes water drawn from pump with air and fed to sepn. chamber having downwardly sloping partition |
| 04/21/1992 | US5106489 Adjustment of surface charging of dry plant tailings |
| 04/21/1992 | CA1299197C Collectors and processes for making and using same |
| 04/09/1992 | DE4029211C1 Separator for liquids - has cylindrical vessel with flotation basin and annular main liquids duct |
| 04/08/1992 | EP0144421B1 Column froth flotation |
| 03/26/1992 | DE4030160A1 Verfahren zur gewinnung von mineralien aus nichtsulfidischen erzen durch flotation A method for extraction of minerals from ores by flotation nonsulfidic |
| 03/25/1992 | WO1992004981A1 Process for extracting by flotation the minerals contained in non-pyritiferous ores |
| 03/25/1992 | EP0476354A2 Process and plant for treating a scrubber sludge resulting from flue gas desulfurization |
| 03/25/1992 | CA2092440A1 Process for the recovery of minerals from non-sulfidic ores by flotation |
| 03/24/1992 | CA1298001C Aeration apparatus |
| 03/24/1992 | CA1297674C Coal-water fuel production |
| 03/17/1992 | US5096572 Froth flotation |
| 03/17/1992 | US5096571 Recovery of sulfur from native ores |
| 03/10/1992 | US5094746 Flotation process using a mixture of collectors |
| 03/10/1992 | US5094674 Device for separation of air from flotation slush |
| 03/10/1992 | CA1296898C Process for deashing coal |
| 03/05/1992 | WO1992003229A1 Method and apparatus for improving flotation separation |
| 03/05/1992 | DE4128320A1 Processing plant for oil-contg. sludges |
| 03/05/1992 | CA2047379A1 Floatation separation system |
| 03/04/1992 | EP0473566A2 Gas sparged hydrocyclone |
| 03/03/1992 | CA1296818C Separation of polymetallic sulphides by froth flotation |
| 03/01/1992 | CA2042631A1 Gas sparged centrifugal device |
| 02/26/1992 | CN1015602B Collophane floatation machine |
| 02/26/1992 | CN1015601B Floatation of fluor spar |
| 02/25/1992 | US5091083 Flotation separation system |
| 02/19/1992 | CN2096417U Oblate shape multibarrel spray type waste paper de-ink flotation machine |
| 02/19/1992 | CN2096416U Cyclone type flotation post |
| 02/18/1992 | US5089116 For sulfide minerals |
| 02/12/1992 | EP0470946A1 Hydrocyclone deinking and removal of sticky contaminants during paper recycling |
| 02/12/1992 | CN1058550A Separation method of cu and sn mixed filings |
| 02/12/1992 | CN1058549A Collecting agent for ordinary-temp. floatation of collophanite |
| 02/12/1992 | CN1058548A Electrochemical floatation of pyrite and arsenopyrite |
| 02/11/1992 | US5087352 Device for controlling the flow of foam |
| 02/10/1992 | CA2044383A1 Hydrocyclone deinking and removal of sticky contaminants during paper recycling |