| Patents for B03D 1 - Flotation (8,101) |
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| 09/21/1994 | EP0615467A1 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores. |
| 09/20/1994 | US5348648 Flotation device for the treatment of water polluted by hydrocarbons |
| 09/15/1994 | DE4414696A1 Foaming detergent mixtures |
| 09/13/1994 | US5346630 Coal dewatering |
| 09/07/1994 | EP0613725A2 Flotation device with foam sucking means |
| 09/07/1994 | CN2176190Y Self sucting floatation machine |
| 09/07/1994 | CN1025821C Alkylated diaryl oxide monosulfonate collector useful in flotation of minerals |
| 08/30/1994 | US5341938 Method of separating materials in a flotation reactor |
| 08/27/1994 | WO1994019532A1 Deinking agent and method of deinking by flotation using said agent |
| 08/18/1994 | WO1994017920A1 Method and apparatus for separation by flotation |
| 08/18/1994 | CA2155198A1 Method and apparatus for separation by flotation |
| 08/17/1994 | EP0370026B1 Liquid separator |
| 08/16/1994 | US5337965 Method and apparatus for recycling asphalt based roofing material |
| 08/09/1994 | US5335785 Flotation column with adjustable supported baffles |
| 08/05/1994 | CA2114915A1 Process for recovering micas by flotation and micas obtained thereby |
| 08/03/1994 | CN1090226A Selective capturing agent for bastnaesite-(La) ore |
| 07/26/1994 | US5332100 Column flotation method |
| 07/20/1994 | CN1025479C Process for non-suppression dressing of cassiterite and multi-metal sulfide ore |
| 07/19/1994 | US5330655 Method of regulating a flotation system with a primary and secondary stage |
| 07/13/1994 | CN1025418C Density separation of aflatoxin-contaminated grain or nuts |
| 07/05/1994 | EP0620756A4 Gas particle formation. |
| 06/30/1994 | DE4243662A1 Froth filtration cell with two-stage collector trough |
| 06/22/1994 | EP0602182A1 Improved apparatus and method for deinking waste paper pulp |
| 06/21/1994 | US5322169 Flotation cyclone |
| 06/14/1994 | US5320750 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 06/09/1994 | WO1994012283A1 A polyvinyl chloride-polyethylene terephthalate separation process and product |
| 06/08/1994 | CN1087559A Process for a selective flotation of a copper-leadzinc sulfide |
| 06/07/1994 | US5318185 Mixing with frothing agent of aliphatic hydrocarbyl alcohol or aliphatic organic amine |
| 06/07/1994 | CA1330125C Polyamines as pyrrhotite depressant in a flotation process |
| 05/26/1994 | WO1994011308A1 Method and device for purification of aqueous solutions by electroflotation |
| 05/25/1994 | EP0597950A1 Dewatering of aqueous suspensions |
| 05/25/1994 | CN2165931Y Stiring flotation machine |
| 05/24/1994 | US5314073 Beneficiating a silicious phosphate ore |
| 05/19/1994 | DE4238336A1 Used paper suspension cleaning process and appts. - has thickener or washer for sludge from flotation unit to be returned to the flotation stage |
| 05/18/1994 | EP0597522A1 Process for the selective flotation of a sulphide ore containing copper, lead and zinc |
| 05/17/1994 | US5311997 Conditioning by adding anionic flotation collector prior to centrifuging |
| 05/13/1994 | CA2107275A1 Process for a selective flotation of a copper-lead-zinc sulfide |
| 05/11/1994 | EP0595816A1 Material treatment apparatus |
| 05/10/1994 | US5310459 Apparatus and method for deinking waste paper pulp |
| 05/05/1994 | DE4237115A1 Separation of material by flotation-sedimentation process - using liquid carbon di:oxide as separating medium, at around minus 15 degrees Centigrade and 25 bar pressure |
| 05/04/1994 | CN2163695Y Mine coarse grain flotation machine |
| 05/04/1994 | CN2163694Y Suction feeding flotation machine |
| 05/03/1994 | US5307938 Treatment of iron ore to increase recovery through the use of low molecular weight polyacrylate dispersants |
| 05/03/1994 | US5307937 High throughput flotation column process |
| 05/03/1994 | CA1329277C Column flotation method and apparatus |
| 04/28/1994 | DE4236723C1 Electro-flotation appts. for waste water treatment - allows simple replacement of consumable electrodes |
| 04/27/1994 | CN1085828A Activator-frother composition of good selectivity which can be used as additional reagent for the flotation |
| 04/27/1994 | CN1085827A Foaming agent for flotation of rare-earth ore and its method for prepn. |
| 04/26/1994 | US5306422 Compact clarifier system for municipal waste water treatment |
| 04/26/1994 | US5305888 Fruit/vegetable floatation grading |
| 04/20/1994 | CN1085469A Method for dressing and epurating wollastonite |
| 04/19/1994 | US5304317 Froth flotation of fine particles |
| 04/19/1994 | US5303871 Attrition, classification |
| 04/14/1994 | WO1994007604A1 Coal flotation process |
| 04/13/1994 | EP0591633A1 Flotation process for purifying calcite |
| 04/13/1994 | EP0591406A1 Selective separation of finely-divided minerals by addition of selective collector reagent and centrifugation |
| 04/13/1994 | CN2161376Y Exhaust unit for concentrating machine |
| 04/13/1994 | CN1024166C Flotation machine suitable for flotating rough and heavy granulated ores |
| 04/12/1994 | CA1328512C Flotation depressants |
| 04/10/1994 | CA2108111A1 Method and apparatus for recycling asphalt based roofing material |
| 04/10/1994 | CA2107963A1 Tailings retreatment |
| 04/08/1994 | CA2107730A1 Flotation process for purifying calcite |
| 04/06/1994 | CN1084784A Self-suction feeding flotation machine |
| 04/05/1994 | US5300222 Water clarification method and apparatus |
| 04/05/1994 | CA1328316C Apparatus for separation of coarse particles |
| 03/26/1994 | CA2106925A1 Method and apparatus for aerating slurry in a froth flotation machine |
| 03/22/1994 | US5296149 Water treatment apparatus |
| 03/22/1994 | US5296006 3-acrylamido-3-methylbutanoic acid copolymers as selective coal flocculants |
| 03/22/1994 | US5295585 Method for achieving enhanced copper-containing mineral concentrate grade by oxidation and flotation |
| 03/22/1994 | US5295584 Dicarboxylic acid derivatives for flotation |
| 03/17/1994 | DE4230765A1 Recycling used oily emulsions, esp machine tool lubricants - by filtering emulsion, treating with flotation agent, electrolysing and removing floating oil and particles |
| 03/15/1994 | US5294003 Process for concentration of minerals |
| 03/15/1994 | CA1327854C Method and apparatus for flotation cell processing |
| 02/22/1994 | US5288737 Wastewater treatment apparatus |
| 02/16/1994 | CN2155949Y Single trough flotation equipment |
| 02/15/1994 | US5285972 Mechanical separation of lead and zinc minerals; grinding; conditioning; flotation; agglomeration |
| 02/08/1994 | US5284249 Direct hydraulic drive for large flotation cells |
| 02/03/1994 | WO1994002252A1 Flotation method |
| 02/03/1994 | WO1994002251A1 Device for centrically charging circular tanks |
| 02/03/1994 | WO1994002250A1 Fruit/vegetable floatation grading |
| 02/03/1994 | CA2119238A1 Device for centrically charging circular tanks |
| 02/02/1994 | EP0581196A2 Controlling a flotation plant having a primary and a secondary stage |
| 02/01/1994 | US5282538 Flotation column |
| 01/31/1994 | CA2101710A1 Method of regulating a flotation system with a primary and secondary stage |
| 01/27/1994 | DE4224047A1 Vorrichtung zur zentrischen Beschickung von Rundsandfängen und Sandklassierern in Rundbauweise Device for the central charging of circular grit traps and grit classifiers of circular construction |
| 01/25/1994 | CA1326572C Injector apparatus |
| 01/25/1994 | CA1326571C Recovery of metal values from oil sands tailings slurry |
| 01/18/1994 | US5279424 Floatation apparatus for removal of distrubing substances, especially printing ink from waste paper suspensions |
| 01/14/1994 | CA2073709A1 Separation of fine sulphide minerals by froth flotation |
| 01/13/1994 | DE4320283A1 Enrichment or complete processing of nickel sulphide concentrate - by sepn. into two streams of higher and lower valuable metal content which are subjected to pyrometallurgical and hydrometallurgical processing respectively |
| 01/13/1994 | DE4238211C1 Detergent mixts. - contg. cationic saccharide and other anionic, non-anionic, cationic and amphoteric and/or Zwitterionic surfactants, having good cold water solubility or dispersibility |
| 01/12/1994 | CN1080569A Mineral concentration process for raising bauxite grade |
| 01/12/1994 | CN1080568A Flotation for reducing iron and titanium content of bauxite |
| 01/12/1994 | CN1080567A Flotation agent synthetizing and application for raising recovering rate of gold and silver |
| 01/11/1994 | US5277803 Water clarification method and apparatus |
| 01/11/1994 | US5277317 For beneficiating minerals |
| 01/05/1994 | EP0576624A1 Discharge valve for dissolved air flotation |
| 01/04/1994 | US5275732 Water treatment |
| 12/29/1993 | CN2151142Y Air floating water treater with shallow pool |
| 12/28/1993 | US5273624 Pressurized flotation module and method for pressurized foam separation |