| Patents for B03D 3 - Differential sedimentation (679) |
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| 08/20/1997 | EP0790217A1 Coagulating agent |
| 08/07/1997 | WO1997027944A1 Method for separating mixture of finely divided minerals |
| 08/07/1997 | CA2243843A1 Method for separating mixture of finely divided minerals |
| 07/23/1997 | CN2258099Y Multi-ring plate cyclone flocculation separator |
| 06/03/1997 | US5635024 Mixing with water, water soluble surfactant and polymeric coagulant, then acidification to cause coagulation and flocculation of organic compounds |
| 05/22/1997 | WO1997018474A1 Method of selecting a population or subpopulation of a sample utilizing particle and gravity sedimentation |
| 05/22/1997 | CA2237119A1 Method of selecting a population or subpopulation of a sample utilizing particle and gravity sedimentation |
| 04/29/1997 | US5624502 Storage wash water in vessel, cleaning the floating vessel, transmitting contaminated wash water, introducing coagulating cation polymer, settling, concentrating, decanting and separation |
| 04/22/1997 | US5622647 Using a diallyldimethylammonium chloride copolymer as coagulant |
| 02/26/1997 | EP0759014A1 Dadmac/vinyl trialkoxysilane copolymers for enhancement of fine coal treatments |
| 02/18/1997 | US5603411 Method for separating mixture of finely divided minerals |
| 11/20/1996 | EP0742736A1 Device for separating oil-in-water emulsions by electrocoagulation |
| 09/12/1996 | WO1996027557A1 Dadmac/vinyl trialkoxysilane copolymers for enhancement of fine coal treatments |
| 09/12/1996 | CA2189850A1 Dadmac/vinyl trialkoxysilane copolymers for enhancement of fine coal treatments |
| 08/15/1996 | WO1996017667A3 Device for separating oil-in-water emulsions by electrocoagulation |
| 07/16/1996 | US5535890 Adding dispersant to aqueous slurry, preconditioning with fatty acid and source of polyvalent cations, then selective flocculation with anionic polymer, rapid settling |
| 06/25/1996 | US5529698 Separators |
| 06/25/1996 | US5529588 Method of dewatering coal using vinyl amine-containing coagulants |
| 06/13/1996 | WO1996017688A1 Method for separating mixture of finely divided minerals |
| 06/13/1996 | WO1996017667A2 Device for separating oil-in-water emulsions by electrocoagulation |
| 03/13/1996 | EP0585318B1 Batch process and apparatus |
| 03/07/1996 | DE4443297C1 Emulsion splitting by electro:coagulation, flotation and decanting |
| 01/31/1996 | EP0694327A2 Process for separating mixtures of particles and/or liquid droplets and a liquid or gas cartier medium using the different compressibilities of the individual materials |
| 12/26/1995 | US5478468 Coagulating sedimentation processing apparatus |
| 12/19/1995 | US5476522 Coagulating tailings at bottom of thickener, withdrawing clarified liquid, discharging concentrated tailings |
| 10/10/1995 | US5456844 Batch process and apparatus |
| 10/05/1995 | WO1995026231A1 Process and apparatus for processing resins |
| 05/10/1995 | CN1102356A Coagulating sedimentation processing apparatus |
| 04/19/1995 | CN1101592A Kaoline selective dispersing and flocculating iron-removing technology |
| 03/15/1995 | EP0643017A1 Hydrophobic Polyelectrolyte coagulants for concentrating coal tailings |
| 02/28/1995 | US5392921 Process and apparatus for processing resins |
| 01/31/1995 | CA1334219C Froth flotation of mineral fines |
| 01/18/1995 | CN1097357A Method for defoaming in floatation of ore concentrate |
| 11/09/1994 | EP0623670A2 Aqueous based surfactant compositions |
| 11/08/1994 | CA2123017A1 Aqueous based surfactant compositions |
| 11/01/1994 | US5360600 Treatment of mineral and alkali metal carbonate slurries |
| 08/31/1994 | EP0612264A1 Improvements in or relating to separators |
| 07/19/1994 | US5330546 Hydrophobic polyelectrolyte coagulants for concentrating coal tailings |
| 06/29/1994 | CN1025218C Spray type deoderizing device |
| 06/07/1994 | CA1329987C Process for the beneficiation of coal by selective caking |
| 06/01/1994 | EP0599324A1 Device for flocculation of solids from suspensions |
| 06/01/1994 | DE4240092A1 Dissolving and diluting polymeric flocculating agents - using closed circuit fed with the agent and with large vol. of water so that mix is pumped through and drawn off at suitable rate |
| 05/03/1994 | US5307938 Treatment of iron ore to increase recovery through the use of low molecular weight polyacrylate dispersants |
| 05/03/1994 | CA1328999C Process for beneficiation of coal by selective caking |
| 04/19/1994 | US5304317 Froth flotation of fine particles |
| 04/13/1994 | CN1085128A Concentrating process for coagulating and settling tailings |
| 03/29/1994 | US5297683 Process and apparatus for processing resins |
| 03/22/1994 | US5296006 3-acrylamido-3-methylbutanoic acid copolymers as selective coal flocculants |
| 03/09/1994 | EP0585318A1 Batch process and apparatus. |
| 02/17/1994 | DE4329232A1 Assembly having interlocking contra-rotating combs separates solid particles from granular or lumpy materials - facilitates sepn. of several grades of material in a single stage process |
| 02/03/1994 | WO1994002252A1 Flotation method |
| 12/07/1993 | US5267653 Sorting method and sorting device |
| 09/22/1993 | EP0561217A2 Method and device for processing fresh concrete residues and similar building materials |
| 07/06/1993 | US5225085 Apparatus and process for the separation and reclamation of selected components in grease trap waste |
| 06/08/1993 | US5217604 Using alkylated polyvinylpyrrolidone as selective flocculant |
| 05/13/1993 | WO1993008892A1 Improvements in or relating to separators |
| 05/13/1993 | CA2121335A1 Improvements in or relating to separators |
| 04/27/1993 | CA1316835C Separation of ash from regenerated adsorbent |
| 01/14/1993 | DE4122561A1 Filter for ultrasonic cleaning bath - has filter cleaned by oscillating nozzle and canals inserted in some of its perforations to prevent return flow of particles. |
| 12/10/1992 | WO1992021444A1 Batch process and apparatus |
| 12/01/1992 | CA1310950C Process for recovering regenerated adsorbent particles and separating ash therefrom |
| 11/10/1992 | US5161694 Use of hydrocarbon oil and water |
| 09/29/1992 | CA2064383A1 Froth flotation of fine particles |
| 09/29/1992 | CA2064357A1 Froth flotation of fine coal or mineral particles |
| 09/01/1992 | CA1306985C Separation of materials from a liquid dispersion by sedimentation |
| 07/07/1992 | US5128027 Dispersion, sedimentation, brightening |
| 01/28/1992 | CA1294912C Process for beneficiating coal by means of selective agglomeration |
| 11/19/1991 | US5066387 Process for removing fine particles from a powder |
| 09/24/1991 | US5051199 Froth flotation of mineral fines |
| 07/09/1991 | US5030278 Process of restructuring a group of finely divided particles |
| 04/30/1991 | US5011022 Cyclic flow slurry fractionation |
| 04/09/1991 | US5006231 Flocculant control system |
| 10/24/1990 | EP0394091A1 Method of restructuring a mass of fine particles |
| 10/17/1990 | CN1046182A Spray type deodorizing device |
| 10/17/1990 | CA2014573A1 Restructuration process for a group of fine particules |
| 09/11/1990 | US4956077 Froth flotation of mineral fines |
| 08/21/1990 | US4950908 Flocculant control system |
| 08/07/1990 | US4946474 Process for beneficiation of coal by selective caking |
| 04/05/1990 | DE3833054A1 Verfahren zur aufbereitung von teichschlamm (flotationsabgaengen) und aufbereitungsanlage Process for the preparation of pond sludge (flotation tailings) and treatment plant |
| 04/04/1990 | EP0122270B1 Separation of multi-phase systems |
| 11/21/1989 | US4881946 Process for the beneficiation of coal by selective caking |
| 08/22/1989 | US4859318 Recovering coal fines |
| 08/15/1989 | US4857221 Froth flotation using hydrophobic polyvinyl ether |
| 06/21/1989 | EP0321015A2 A process for the beneficiation of coal by selective caking |
| 06/21/1989 | EP0321014A2 A process for beneficiation of coal by selective caking |
| 04/25/1989 | US4824560 Separation of materials from a liquid dispersion by sedimentation |
| 04/12/1989 | EP0311220A2 Improvements in or relating to the treatment of multi-phase systems |
| 03/28/1989 | US4816166 Flocculation of coal particles and coal slimes |
| 01/25/1989 | CN1030535A Selective flocculation process for recovery of phosphate |
| 01/11/1989 | EP0298592A1 Process for recovering regenerated adsorbent particles and separating ash therefrom |
| 11/22/1988 | US4786318 Thickening of gold process slurries |
| 11/01/1988 | CA1243985A1 Particle size range separations prior to de-watering |
| 10/18/1988 | US4778598 Separation of ash from regenerated adsorbent |
| 10/11/1988 | US4776859 Process for beneficiating coal by means of selective agglomeration |
| 09/14/1988 | EP0066611B1 Selective rheological separation of clays |
| 09/07/1988 | CN87100932A Wet-type mineral concentration method for swelled soil |
| 08/23/1988 | US4765899 Apparatus for continuous separation of leukocyte/platelet-enriched fraction from whole blood |
| 08/10/1988 | EP0277704A2 Separation of ash from regenerated adsorbent |
| 06/21/1988 | CA1238431A1 Flocculation of coal particles and coal slimes |
| 06/14/1988 | US4750992 Basic aluminum compound dispersant |