| Patents for B03D 1 - Flotation (8,101) |
|---|
| 12/23/1993 | WO1993025313A1 Concentration of minerals |
| 12/15/1993 | CN1079411A Side-stream inclined plate sink-float solid-liquid separation method and its equipment |
| 12/15/1993 | CN1023081C Floating selection process for fluorite and its modifier compositions |
| 12/14/1993 | CA1325181C Nonmiscible liquids separator |
| 12/08/1993 | CN1079176A Flowing membrane floatation process and equipment thereof |
| 12/07/1993 | US5268099 For raw water treated with flocculant and air |
| 12/07/1993 | CA1325068C Depressant for flotation separation of polymetallic sulphidic ores |
| 12/07/1993 | CA1325067C Method of removing pyritic sulphur from coal |
| 12/01/1993 | CN1078927A Concentrated aqueous metal dithiophosphates and methods of using the same |
| 11/30/1993 | US5266240 Flotation reactor with external bubble generator |
| 11/30/1993 | CA1324842C Process for fine coal cleaning |
| 11/25/1993 | WO1993023335A1 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 11/25/1993 | WO1993023334A1 Lamellar apparatus and method for clarifying water |
| 11/25/1993 | CA2136201A1 Lamellar apparatus and method for clarifying water |
| 11/18/1993 | EP0569425A1 Apparatus for cleaning waters and industrial sewages containing floating materials. |
| 11/18/1993 | DE4215397A1 Vehicle paint spray water recirculation assembly - has system tank with suction pump to extract floating paint particles without using chemicals |
| 11/16/1993 | US5261539 Flotation process for purifying calcite |
| 11/11/1993 | WO1993022061A1 Vortex flotation cell |
| 11/11/1993 | WO1993022060A1 Method for achieving enhanced copper-containing mineral concentrate grade by oxidation and flotation |
| 11/10/1993 | EP0504203B1 Method and apparatus for effecting gas-liquid contact |
| 11/06/1993 | CA2095307A1 Depressant for flotation separation of polymetallic sulphide ores |
| 10/28/1993 | WO1993020945A1 Froth wash and froth removal system |
| 10/28/1993 | WO1993020917A1 Procedure and means for processing liquids |
| 10/28/1993 | CA2133958A1 Procedure and means for processing liquids |
| 10/26/1993 | US5256299 Method and apparatus for liquid treatment |
| 10/20/1993 | EP0424426B1 Method and apparatus for the removal of light material from a fiber suspension |
| 10/14/1993 | WO1993019836A1 Method and apparatus for effecting gas-liquid contact |
| 10/14/1993 | CA2337131A1 Method and apparatus for effecting gas-liquid contact |
| 10/14/1993 | CA2337121A1 Method and apparatus for effecting gas-liquid contact |
| 10/13/1993 | CN1077143A Method for raising efficiency of disk-type vacuum filter |
| 10/12/1993 | US5252614 Process for separating polyethylene terephthalate from polyvinyl chloride |
| 10/12/1993 | US5251764 Flotation machine |
| 10/12/1993 | CA1323116C Foam flotation process and apparatus for separation of emulsions or suspensions |
| 10/12/1993 | CA1323115C Process for the enrichment of a sulphide ore |
| 10/05/1993 | US5249688 Froth flotation apparatus |
| 09/29/1993 | EP0562040A1 Aryl monosulfonate collectors useful in the flotation of minerals. |
| 09/29/1993 | CN1076641A Preparation technology of rare-earth foaming agent for flotation |
| 09/28/1993 | US5248041 Separation of polyester from polyvinyl chloride |
| 09/27/1993 | CA2092502A1 Sorting process and apparatus |
| 09/23/1993 | DE4208370A1 Prodn. of very fine gas bubbles from high-pressure gasified liq. - involves subjecting liq. to pressure considerably below its vapour pressure |
| 09/22/1993 | CN2142368Y Centrifugal pump type definite quantity medicine feeder |
| 09/22/1993 | CN1022169C Method for preparing collecting agent for ordinary-temp. floatation of collophanite |
| 09/15/1993 | EP0560561A2 Froth flotation machine |
| 09/15/1993 | EP0559772A1 Method for producing high opacifying kaolin pigment. |
| 09/14/1993 | US5244097 Apparatus for feeding air into a flotation cell |
| 09/14/1993 | CA1322177C Liquid separator |
| 09/10/1993 | CA2087149A1 Froth flotation machine |
| 09/07/1993 | US5242600 Water treatment by flotation |
| 09/07/1993 | US5242585 Apparatus and method for deinking waste paper pulp |
| 09/07/1993 | US5242580 Recovery of hydrocarbons from hydrocarbon contaminated sludge |
| 09/02/1993 | WO1993017029A1 Concentrated aqueous metal dithiophosphates and methods of using the same |
| 09/02/1993 | DE4206206A1 Waste paper recycling - uses electrolyte and foaming to develop a flocculant to remove dirt as a scum from the surface of processing water |
| 08/31/1993 | US5240621 Centrifuging |
| 08/31/1993 | CA1321846C Flotation of non-sulfidic ore with a glycosidic collector |
| 08/26/1993 | DE4204915A1 Reprocessing waste paper - in presence of peroxide(s) with mixts. of polyfunctional carboxylic acids and polymeric cpds. as flotation stabilisers |
| 08/24/1993 | US5238533 Flotation process for removing fillers from wastepaper in the presence of polymers and copolymers |
| 08/24/1993 | US5238119 Froth flotation using dinonylsulfosuccinate salt |
| 08/19/1993 | DE4309918A1 Flotation cell with an injector - supplies adequate quantities of air bubbles to fluid suspensions |
| 08/17/1993 | US5237079 Nonfoaming, easy recovery, salt of fatty hydroxamic acid from fatty ester and hydroxylamine salt, emulsification |
| 08/17/1993 | US5236090 Flotation-deinking-device |
| 08/11/1993 | CN1075104A Preparing method of foaming agent |
| 08/10/1993 | US5234112 Flotation reactor with external bubble generator |
| 08/10/1993 | US5234111 Flotation machine |
| 08/10/1993 | US5234110 Polyvinyl chloride-polyethylene terephthalate separation process and product |
| 08/05/1993 | WO1993015021A1 Dissolved air flotation |
| 08/05/1993 | WO1993014876A1 Flotation apparatus for concentrating ores |
| 08/05/1993 | DE4202939A1 Device for removing floating sludge from circular flotation tanks - in which rotating spiral vanes extend from tank centre to walls and convey sludge over tank rim into collection channel |
| 08/03/1993 | US5232581 Recovery of platinum group metals and gold by synergistic reaction between allylalkyl thionocarbamates and dithiophosphates |
| 07/29/1993 | DE4201913A1 Sepn. of oil etc. from sludges - by flotation with air which is recirculated after cooling, removing condensate and opt. heating |
| 07/29/1993 | DE4135368A1 Incinerator filter dust - is sieved to give a coarse fraction with low neutral salts and heavy metal cpd. content to reduce vol. for special disposal |
| 07/27/1993 | CA1320769C N-alkyl and n-alkenyl aspartic acids as co-collectors for the flotation of non-sulfidic ores |
| 07/27/1993 | CA1320768C Derivatives of tricyclo-[5.2.1.0 , ]-dec-3-ene as frothers in the flotation of coal and ores |
| 07/22/1993 | WO1993013863A1 Apparatus and method for separation of wet particles |
| 07/22/1993 | DE4200810A1 Flotation of granular potash salts in increased yield - by producing preconcentrate and residue in 1st flotation and stripping concentrate by re-flotation |
| 07/22/1993 | CA2126311A1 Apparatus and method for separation of wet particles |
| 07/21/1993 | CA2059713A1 Flotation-grinding apparatus |
| 07/20/1993 | USRE34321 Centrifugal flotation apparatus and method |
| 07/20/1993 | CA1320598C Sparging system for column flotation |
| 07/14/1993 | EP0550483A1 Process for extracting by flotation the minerals contained in non-pyritiferous ores |
| 07/13/1993 | US5227047 Slurrying, magnetic separation |
| 07/13/1993 | CA1320287C Gas transfer device and flotation compartment used in a water purification process |
| 07/07/1993 | CN1073895A Floating agent for ore foam floatation |
| 07/06/1993 | US5224604 Apparatus and method for separation of wet and dry particles |
| 06/30/1993 | CN1021415C Natural foam flotation process useftul in separation of pyrite from coal |
| 06/30/1993 | CN1021414C Foam flotation process useful in separation of pyrite from coal |
| 06/29/1993 | US5223148 Process for increasing the bitumen content of oil sands froth |
| 06/29/1993 | US5223147 Process of treating contaminated soils |
| 06/23/1993 | CN1073375A Technological route for non-suppression dressing of cassiterite and multi-metal sulfide ore |
| 06/22/1993 | US5221466 Phosphate rock benefication |
| 06/22/1993 | CA1319453C Method for removal of organic solvents from aqueous process streams |
| 06/22/1993 | CA1319452C Recovery of gold using diisobutyl and disec. butyl monothiophosphinates |
| 06/22/1993 | CA1319451C Method for the depressing of hydrated silicates |
| 06/16/1993 | EP0229835B1 Process for the selective separation of a copper molybdenum ore |
| 06/15/1993 | US5219467 Particles attached to air bubbles rise; upwards speed adjusted by flow guides formed of lamellas and a flow attenuator |
| 06/10/1993 | WO1993011100A1 Process for the extraction of minerals from non-sulphidic ores by flotation |
| 06/10/1993 | WO1993010903A1 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores |
| 06/09/1993 | EP0544683A1 Flotation cyclone. |
| 06/09/1993 | DE4302358A1 Method and equipment for two-stages pressure discharge flotation in container - involves already cleaned water in two stages being sucked from second handling stage by dispersal pump with air or gas feed |
| 06/08/1993 | US5217604 Using alkylated polyvinylpyrrolidone as selective flocculant |
| 06/02/1993 | EP0544185A1 Process for production of minerals from non-sulfidic ores by flotation |