| Patents for B01D 17 - Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion (15,669) |
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| 07/16/1991 | US5032273 Apparatus for separating sand and oil from a waste water stream |
| 07/16/1991 | US5031754 Cooling, coalescing |
| 07/10/1991 | EP0435892A1 A process for disposing of used oil/water emulsions |
| 07/09/1991 | US5030757 Phase transfer catalyst recovery |
| 07/09/1991 | US5030357 Improved srtainer and a rotatable disk to which hydrophobic material are attracted and scraped to be discharged; pollution control |
| 07/09/1991 | US5030356 Process for recovering organic components from liquid streams |
| 07/09/1991 | US5030255 Fluid separator |
| 07/09/1991 | CA1285846C Process for controlling the breaking of oil-in-water emulsions |
| 07/04/1991 | DE4000037A1 Float with adjustable pneumatic feeder in multilayer liq. - provides data on layer thicknesses |
| 07/03/1991 | EP0435766A2 Structure of expanded graphite and its use in the removal of oil from water |
| 07/03/1991 | EP0434671A1 Liquid separator |
| 07/02/1991 | US5028333 Phase separator module |
| 06/26/1991 | EP0434078A2 Light liquid separator |
| 06/26/1991 | CA2032965A1 Removal of oil from water |
| 06/25/1991 | US5026488 Pumping fluid impurities through filter loop, heating, separating, cooling and analyzing processed fluids; injection of additives; mobile and self-powered in a vehicle |
| 06/25/1991 | US5026483 Methods for treating hydrocarbon recovery operations and industrial waters |
| 06/22/1991 | CA2031858A1 Rendering oily wastes landtreatable or usable |
| 06/20/1991 | CA2031122A1 Vinyl phenol polymers for demulsification of oil-in-water emulsions |
| 06/19/1991 | EP0432787A1 Process for removing water soluble organic compounds from produced water |
| 06/19/1991 | CN1012878B Electric voltage adjusting and power supply compensating installation for the crude oil dewatering process |
| 06/18/1991 | US5024952 Method for obtaining analytes from liquid menstrua for analysis |
| 06/13/1991 | WO1991008036A1 Device for filtering contaminated liquids, in particular water |
| 06/12/1991 | EP0431157A1 Method and apparatus for obtaining analytes from liquid menstrua for analysis |
| 06/12/1991 | CA2018417A1 Silicate coagulant aid for treatment of oily wastewaters |
| 06/11/1991 | US5023002 Method and apparatus for recovering oil from an oil spill on the surface of a body of water |
| 06/11/1991 | US5022992 Apparatus for separating sludge |
| 06/07/1991 | WO1991008347A1 Thin flexible sheet sorption material for the removal of oil from oil spills |
| 06/06/1991 | DE3939502A1 Vorrichtung zur filtration von verunreinigten fluessigkeiten, insbesondere von wasser Apparatus for the filtration of contaminated liquids, in particular water |
| 06/05/1991 | EP0429892A2 Amine modified polyalkylene oxides, reticulated, their preparation and their use as a demulsifier |
| 06/05/1991 | EP0429841A1 Separator for waste water loaded with deposit and floating material |
| 06/05/1991 | EP0429593A1 Device for separating light liquids. |
| 06/04/1991 | US5021167 Oil in water emulsion |
| 06/04/1991 | US5021165 Centrifuge used to precondition a mixture before admission to flotation device |
| 06/04/1991 | CA1284693C Method for concentrating surfactant from a brine solution |
| 05/28/1991 | US5019274 Methods for treating hydrocarbon recovery operations and industrial waters |
| 05/28/1991 | US5019254 Filter pad with pocket and method of using the same |
| 05/28/1991 | US5019251 Filter apparatus with a spring loaded safety valve plate |
| 05/28/1991 | US5019245 Method for recovery of hydrocarbons form contaminated soil or refuse materials |
| 05/28/1991 | CA1284455C Isolation fluid control device and water cup |
| 05/23/1991 | DE4033112A1 Oil and gasoline separator providing mobile sepn. system - in which vessel contg. three chambers uses floating skimmer to remove oil from the surface of contaminated water |
| 05/21/1991 | US5017294 Apparatus for the separation of two immiscible liquids and use of said apparatus in the desalting of a hydrocarbon feedstock |
| 05/21/1991 | US5017285 Fuel filter and cartridge assembly |
| 05/14/1991 | US5015393 Water treatment for accumulation and removal of floating sludge |
| 05/14/1991 | US5015391 Coagulation of oil in water with cationic polymers and sodium silicate |
| 05/14/1991 | US5015378 Belt oil skimmer apparatus |
| 05/14/1991 | US5015337 Vapor recovery system |
| 05/14/1991 | CA1284124C Electrolytically coagulating and floating components in used cleaning bath |
| 05/08/1991 | EP0426115A1 Method for removing amine from solids |
| 05/08/1991 | EP0425618A1 Oil arrester |
| 05/08/1991 | DE3936753A1 Cleaning inspection interior in sepn. container - by ribbed scraper strip moved mechanically or manually over surface |
| 05/07/1991 | US5013452 Resolution of emulsions formed in the production of pharmaceuticals |
| 05/07/1991 | US5013451 Methods for treating hydrocarbon recovery operations and industrial waters |
| 05/07/1991 | US5013440 Flushing liquor decanter drag modification |
| 05/02/1991 | WO1991005738A1 Process and device for removing oily impurities from water |
| 05/02/1991 | DE3935506A1 Removing hydrocarbon(s) from condensate water obtd. in dry cleaning - by liq.-liq. extn. followed by adsorption |
| 05/01/1991 | CA2028685A1 Method for removing amine from solids |
| 04/30/1991 | US5011609 Ultrasorb system |
| 04/30/1991 | US5011597 Single cell vertical static flow flotation unit |
| 04/25/1991 | DE4022587A1 Light-liq. separator contg. partitions - in which shape and arrangement of openings in partitions optimise performance of gravitational liq. separator |
| 04/25/1991 | DE3934874A1 Environmentally acceptable solid extraction from fluid - includes separator with divided chamber having horizontal and vertical screws with compression zone for prodn. from solids |
| 04/24/1991 | EP0423936A2 Floating oil separator and process |
| 04/23/1991 | US5009787 Treating with non-water-soluble liquid fluorocarbon |
| 04/23/1991 | US5009785 System and apparatus for the separation of multi-phase mixture |
| 04/23/1991 | US5009784 Cyclone separator with oppositely directed separating chambers |
| 04/18/1991 | DE3933857A1 Oil water emulsion breaking - in vertical tubular cell with coaxial anode operated in batches |
| 04/17/1991 | EP0422463A1 Solvent recovery apparatus |
| 04/16/1991 | US5008014 Separator |
| 04/10/1991 | EP0421555A1 Method and device for separating liquid and a second substance |
| 04/09/1991 | US5006274 Dithiocarbamate from carbon disulfide and bishexamethylenetriamine; waste water treatment |
| 04/09/1991 | US5006260 Separation of one phase dispersed im emulsion or in suspension in continuous phase of different density |
| 04/09/1991 | US5006239 Separation of particles, froth flotation |
| 04/09/1991 | US5006231 Flocculant control system |
| 04/09/1991 | CA1282897C Polyethers obtainable by reacting alkylolated bis-(4- hydroxyphenyl)-methanes with polyalkylene oxides, and their use as oil demulsifiers |
| 04/06/1991 | CA2026901A1 Method and device for separating liquid and a second substance |
| 04/02/1991 | US5004559 Demulsification Of Water-Containing Crude Oil |
| 04/02/1991 | US5004552 Apparatus and method for separating water from crude oil |
| 04/02/1991 | US5004531 Treatment of concentrated industrial wastewaters originating from oil shale and the like by electrolysis polyurethane foam interaction |
| 03/27/1991 | EP0419030A2 Fuel filter with positive water shutoff |
| 03/27/1991 | EP0418847A1 Plant for processing a filtration slurry containing essentialy diatomaceous earth and process for operating the plant |
| 03/27/1991 | CN1050217A Method and equipments for extracting matter containing fat and proteins from fluid stock |
| 03/27/1991 | CN1050212A Method for breaking emulsions |
| 03/27/1991 | CN1012134B Efficient thick oil emulsion-breaking agent |
| 03/26/1991 | US5002671 Injection, exhaustion and centrifuging, a casing with plates to close off the ends |
| 03/26/1991 | US5002657 Separator for oil well production fluids |
| 03/22/1991 | WO1991004087A1 Device for taking up fluids |
| 03/22/1991 | CA2066742A1 Device for taking up fluids |
| 03/21/1991 | WO1991003428A1 Absorbent materials and use thereof |
| 03/21/1991 | WO1991003305A1 Process and installation for extracting fat and/or protein-containing material from fat-containing liquid material, in particular from slaughter deposits and waste |
| 03/21/1991 | WO1991003301A1 Fuel filter |
| 03/21/1991 | DE3929292A1 Emulsion for removing corrosive and poisonous agents from small items - comprises aq. soln. of solvent, emulsifier, water soluble active agent with low electrolytic activity etc. |
| 03/20/1991 | EP0417114A1 Separating constituents of a mixture of particles |
| 03/20/1991 | CN2073318U Automatic oil spraying and collecting device |
| 03/19/1991 | US5000857 Water-oil separation method |
| 03/19/1991 | CA1281530C Mixer-settler apparatus having a submerged chute |
| 03/16/1991 | CA2024752A1 Floating oil separator |
| 03/14/1991 | DE3929044A1 Oil separator - to separate oil from oil-water mixts. in inclined-plate separator, for removal of solid material deposits |
| 03/13/1991 | EP0416969A1 New water-in-oil emulsions and their use for removing hydrogen sulfide |
| 03/13/1991 | EP0416146A1 Device for the separation of solid particles and fluids with an elevated density from fluids having a lower density |
| 03/12/1991 | US4999108 Having embedded wire which conducts away charge taken from liquid to be filtered |
| 03/12/1991 | US4998585 Floating layer recovery apparatus |