| Patents for B01D 17 - Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion (15,669) |
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| 06/20/1990 | CN1043086A Solution separation apparatus utilizing gel dissolved expansion character |
| 06/19/1990 | US4935162 Alkoxylated amido-containing polyamines and their use for breaking oil-in-water and water-in-oil emulsions |
| 06/19/1990 | US4935154 Water treating using a series coalescing flume |
| 06/19/1990 | US4935137 Filter apparatus for a liquid mixture |
| 06/19/1990 | US4935132 Drain pipe filter |
| 06/19/1990 | US4935113 Spraying effluent over an electric field, draining and density separation of coloring particles |
| 06/19/1990 | US4934458 Small diameter dual pump pollutant recovery system |
| 06/19/1990 | US4934420 Gravy separating device |
| 06/19/1990 | CA1270465A1 Cyclone separator |
| 06/13/1990 | EP0371989A1 Apparatus and method for separation and/or formation of immiscible liquid stream |
| 06/13/1990 | DE3841198A1 Apparatus for oil separation |
| 06/13/1990 | CN1042845A Oil-water separation method and unit |
| 06/12/1990 | US4933524 Clarifier apparatus and methods with 3-D arrays |
| 06/12/1990 | US4933094 Method and apparatus for separating liquid components from a liquid mixture |
| 06/12/1990 | US4933093 Fuel filter |
| 06/12/1990 | US4933089 Conveying production fluid into contact with metal having nickel content greater than seventy-five percent |
| 06/12/1990 | US4933077 Water separator for a fuel system |
| 06/07/1990 | DE3840971A1 Process and device for making pumpable the floating layer in a low-density separator |
| 06/06/1990 | EP0371655A1 Plate separator for fluid mixtures |
| 06/06/1990 | EP0162068B1 Separating oil emulsions |
| 06/05/1990 | CA2001465A1 Apparatus for processing coolant |
| 05/31/1990 | WO1990005591A1 Centrifugal separator |
| 05/31/1990 | WO1990005573A1 Phase-separating element |
| 05/31/1990 | CA2001894A1 Plate separator for fluid mixtures |
| 05/30/1990 | EP0370397A1 Process for the treatment of oil-containing water |
| 05/30/1990 | EP0370026A1 Liquid separator. |
| 05/29/1990 | US4929359 Treatment of concentrated industrial wastewaters originating from oil shale and the like by electrolysis polyurethane foam interaction |
| 05/23/1990 | EP0368901A1 New and improved apparatus and method for the separation of immiscible liquids |
| 05/23/1990 | EP0179798B1 Vacuum pump purging apparatus |
| 05/22/1990 | US4927536 Hydrocyclone separation system |
| 05/22/1990 | US4927511 Method and device for breaking a disperse system in an electrochemical cell |
| 05/22/1990 | US4927500 Waste oil purifying apparatus |
| 05/17/1990 | WO1990005012A1 Filter for removing hydrophobic substances from electrophoretic enamel coatings |
| 05/16/1990 | EP0368084A1 Separator for non-miscible liquids |
| 05/15/1990 | US4925575 System for separating phases of a liquid stream |
| 05/15/1990 | US4925564 Bacterial incubator and method of use |
| 05/15/1990 | US4925563 Liquid waste processing apparatus |
| 05/15/1990 | US4925553 Pressurized oil filter/carbon separator |
| 05/15/1990 | US4925441 Centrifugal contactor modified for end stage operation in a multistage system |
| 05/10/1990 | DE3837707A1 Liquid container with discharge channel |
| 05/10/1990 | DE3837638A1 Method for taking off floating material from gravity separators |
| 05/09/1990 | EP0366947A1 Filter for removing hydrophobic substances from electrodeposition paints |
| 05/08/1990 | CA1268718A1 Filter for separating substances having lipophilic and/or oleophilic and/or apolar properties from different liquids, gases and vapors |
| 05/03/1990 | WO1990004443A1 Apparatus for filtering and coalescing liquids |
| 05/02/1990 | EP0366429A2 Improvements in apparatus and process to separate and remove extraneous matter from a liquid stream |
| 05/02/1990 | EP0366362A1 Apparatus for filtering and coalescing liquids |
| 05/02/1990 | EP0365537A1 Liquid separator |
| 05/01/1990 | US4921618 Inverted separation and transfer device, and process for using same |
| 05/01/1990 | US4921609 Circular lamella clarifier |
| 04/26/1990 | CA2001493A1 Apparatus for filtering and coalescing liquids |
| 04/25/1990 | EP0364671A2 Apparatus and process for drying liquid |
| 04/24/1990 | US4919777 With longitudinal flow in a horizontal elongate metal tank; charging and coalescing brine; petroleum recovery |
| 04/24/1990 | US4919691 Paint detackification using an improved oil-in-water emulsion with dibasic ester |
| 04/24/1990 | CA2001216A1 Apparatus and process to separate and remove extraneous matter from a liquid stream |
| 04/19/1990 | DE3842238A1 Process for deoiling oil-polluted water |
| 04/17/1990 | US4917782 Electrolytic liquid purification process and apparatus |
| 04/12/1990 | DE3834244A1 Process and device for purifying fat- or oil-containing waste water |
| 04/11/1990 | EP0363050A1 Separator |
| 04/11/1990 | EP0363049A1 Separator |
| 04/11/1990 | EP0362343A1 Interceptors |
| 04/10/1990 | US4915823 Assembly for the separation of oil from water |
| 04/10/1990 | EP0355127A4 Method and apparatus for separating phases of a multi-phase liquid. |
| 04/10/1990 | EP0346328A4 Hydrocyclones. |
| 04/10/1990 | CA1267633A1 Charge injection device |
| 04/10/1990 | CA1267584A1 Demulsifiers |
| 04/09/1990 | EP0341282A4 Cyclone separator. |
| 04/05/1990 | WO1990003332A1 A process for disposing of used oil/water emulsions |
| 04/05/1990 | WO1990003222A1 Method and apparatus for separating liquid components from a liquid mixture |
| 04/05/1990 | WO1990003221A1 Method and apparatus for separating liquid components from a liquid mixture |
| 04/04/1990 | EP0361201A1 Process to dispose of spent oil-water emulsions |
| 04/04/1990 | EP0122270B1 Separation of multi-phase systems |
| 04/03/1990 | US4914257 Precipitating complex, distilling solvent |
| 04/03/1990 | US4913245 Wellbore drilling cuttings treatment |
| 03/29/1990 | DE3835553C1 Method for automatic emptying and highly selective isolation of different fluids via the head space of a vessel in which the fluids are present in layered formation and apparatus for carrying out the method and for cleaning the vessel |
| 03/27/1990 | US4911850 Method and apparatus for separating liquid components from a liquid mixture |
| 03/27/1990 | US4911792 Process for the separation of HF via phase separation and distillation |
| 03/22/1990 | WO1990002593A1 Separator |
| 03/21/1990 | EP0359592A2 Oil separator |
| 03/20/1990 | US4909950 Circulating through a ceramic filter |
| 03/13/1990 | US4908139 Method and apparatus for separating and recovering particulate material |
| 03/13/1990 | CA1266600A1 Process for reversible thickening of a liquid |
| 03/12/1990 | EP0299054A4 Centrifugation pheresis system. |
| 03/07/1990 | EP0217791B1 A process for absorbing water having a ph less than four |
| 03/07/1990 | CN1040158A Low pressure hydrocyclone separator |
| 03/06/1990 | US4906264 Oil separator for separating and collecting oil entrained in refrigerant |
| 02/28/1990 | EP0355869A2 Light liquids separator |
| 02/28/1990 | EP0355327A2 Grease separator |
| 02/28/1990 | EP0355127A1 Method and apparatus for separating phases of a multi-phase liquid |
| 02/28/1990 | EP0355113A1 Apparatus and method for separating liquids |
| 02/27/1990 | US4904412 Emulsion-forming composition |
| 02/27/1990 | US4904396 Extraction apparatus and process |
| 02/27/1990 | US4904392 Method of separating, from a liquid mixture, a liquid in dispersed phase from a liquid in continuous phase |
| 02/22/1990 | DE3823664C1 Separating device for sewage |
| 02/20/1990 | CA1266008A1 Semipermeable baffle fuel filter |
| 02/15/1990 | DE3826968A1 Separator for oils and fats situated, in particular, in waste waters |
| 02/14/1990 | EP0354349A1 Mobile device for the treatment of polluted waters, especially pit waters |
| 02/13/1990 | US4900452 Separation process for a liquid phase dispersed in a continuous liquid phase |
| 02/13/1990 | US4900445 Low pressure hydrocyclone separator |
| 02/13/1990 | US4900402 Pervaporation process of separating a liquid mixture |
| 02/08/1990 | WO1990000931A1 Method for treating dispersions of oleophilic liquids and water |