| Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025) |
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| 04/08/1998 | EP0833705A1 On-site manufacture of ultra-high-purity hydrofluoric acid for semiconductor processing |
| 04/07/1998 | US5736003 Apparatus for concentrating urea solutions under vacuum |
| 04/02/1998 | WO1998013320A1 Process to produce styrene from petroleum feedstocks |
| 04/02/1998 | WO1998013117A1 Distillation of vinylaromatic monomer |
| 04/01/1998 | EP0831978A1 On-site ammonia purification for semiconductor manufacture |
| 04/01/1998 | EP0831957A1 A solvent extraction apparatus |
| 04/01/1998 | CN2277292Y Arrow float valve tray |
| 04/01/1998 | CN1177519A Gas-liquid dispersing device, gas-liquid contacting device and waste-water treating device |
| 04/01/1998 | CN1177513A Separated-wall type distillation tower for continuous distillation of multi-component mixture |
| 03/31/1998 | US5733417 Water and organic constituent separator and stripper system and method |
| 03/31/1998 | US5733416 Process for water displacement and component recycling |
| 03/26/1998 | WO1998012281A1 Hydroconversion process |
| 03/26/1998 | WO1998012160A1 Process for concurrent selective hydrogenation of acetylenes and 1,2 butadiene in hydrocarbon streams |
| 03/25/1998 | EP0830508A1 Ocean thermal energy conversion (otec) system |
| 03/25/1998 | EP0830316A1 Point-of-use ammonia purification for electronic component manufacture |
| 03/25/1998 | EP0713414B1 Method and installation for bringing a gas and a liquid into contact with one another |
| 03/25/1998 | CN1176956A Process for separation of dimethyl ether and chloromethane in mixtures |
| 03/25/1998 | CN1037824C Packing element |
| 03/24/1998 | US5730843 Catalytic distillation structure |
| 03/24/1998 | US5730836 Flashing |
| 03/24/1998 | US5730002 Heat exchange |
| 03/24/1998 | US5729987 Desalinization method and apparatus |
| 03/18/1998 | EP0829291A2 Multistage condenser |
| 03/18/1998 | EP0828543A1 Horizontal tray and column for contacting gas and liquid |
| 03/18/1998 | CN1176244A Chemical absorption process for recovering olefing from cracked gases |
| 03/18/1998 | CN1037747C Parallel flow baffled downcomer fractionation tray |
| 03/17/1998 | US5728880 Process for the separation of high-boiling materials from the reaction mixture generated during the production of diaminotoluene |
| 03/17/1998 | US5728273 Method and installation for bringing a gas and a liquid into contact with one another |
| 03/12/1998 | WO1998009492A2 Method for the vacuum distillation of a liquid product and particularly petroleum products, variants and equipment for realising the same |
| 03/11/1998 | EP0827765A2 Gas-liquid dispersion devices, gas-liquid contact apparatus and wastewater treatment systems |
| 03/11/1998 | EP0731728B1 Structure element of a device for the treatment of corrosive materials in heat and stress conditions |
| 03/11/1998 | CN1175909A Distributor trough junctions |
| 03/11/1998 | CN1175568A Process for recovery of pure hydrocarbons from hydrocarbon mixture whcih contains aromatics and non-aromatics |
| 03/11/1998 | CN1037666C Filler and foam breaking mesh used for fractionating tower in refining oil |
| 03/10/1998 | US5725810 Packing for a counterflow high pressure column |
| 03/10/1998 | US5725020 Runoff tongue for fluid flow divider |
| 03/10/1998 | US5724834 Downflow plate and fin heat exchanger for cryogenic rectification |
| 03/05/1998 | WO1998008798A1 Process for separating by distillation pure (meth)acrylic acid from mixtures |
| 03/05/1998 | DE19634614A1 Verfahren zur destillativen Abtrennung von Rein-(Meth)acrylsäure aus Gemischen, die im wesentlichen frei sind von Komponenten, deren Siedepunkt niedriger als der der (Meth)acrylsäure ist A process for distillative separation of pure (meth) acrylic acid from mixtures which are substantially free from components whose boiling point is lower than that of the (meth) acrylic acid |
| 03/05/1998 | CA2263949A1 Process for separating by distillation pure (meth)acrylic acid from mixtures |
| 03/04/1998 | EP0826416A1 Method of conditioning hydrocarbon liquids and an apparatus for carrying out the method |
| 03/04/1998 | EP0826021A1 Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams |
| 03/04/1998 | EP0825894A1 Dehydration and purification of isopropyl alcohol |
| 03/04/1998 | EP0749343B1 Polymer devolatilizer incorporating improved flat plate heat exchanger design |
| 03/03/1998 | US5723433 Detergents |
| 03/03/1998 | US5723026 Process for recovering pure benzene and pure toluene from aromatic hydrocarbon products |
| 03/03/1998 | US5722258 Air separation |
| 02/26/1998 | WO1998007490A1 Countercurrent reaction vessel |
| 02/25/1998 | EP0825245A2 Chemical absorption process for recovering olefins from cracked gases |
| 02/25/1998 | EP0728284A4 Cryogenic separation |
| 02/25/1998 | EP0664778B1 Method for controlling catalytic distillation etherifications |
| 02/24/1998 | US5720856 Demineralizing aqueous influent by distillation, sterilizing distillate, remineralizing by adding desired additive, condensing |
| 02/24/1998 | CA2092612C Water distillation apparatus |
| 02/19/1998 | WO1998006687A1 Process for the production of mtbe |
| 02/18/1998 | CN2274519Y Guiding funnel of glass tower |
| 02/18/1998 | CN1037411C Gas/Liquid distributor between two exchange |
| 02/17/1998 | US5718810 Methanol recovery using extractive distillation |
| 02/16/1998 | CA2213170A1 Chemical absorption process for recovering olefins from cracked gases |
| 02/11/1998 | EP0766596A4 Two-phase distributor system for downflow reactors |
| 02/11/1998 | CN2274089Y Air-chamber type tower plate |
| 02/11/1998 | CN1172791A Distillation process for improving yield of pure products from crude anthracene |
| 02/11/1998 | CN1172685A Method and apparatus for purifying substance |
| 02/10/1998 | US5716524 Purification by solvent extraction |
| 02/04/1998 | EP0822245A2 Process for obtaining pure aromatics from hydrocarbon mixtures containing aromatics and non-aromatics |
| 02/04/1998 | EP0637982B1 Method for transferring components and heat between a liquid sream and a vapour stream, separation apparatus therefor. |
| 02/04/1998 | CN1172101A Process for distillation of crude ester in DMT/PTA process |
| 02/04/1998 | CN1171974A Improved method and circuit for controlling electrical heater in water distiller |
| 01/31/1998 | CA2210980A1 A process for the recovery of pure hydrocarbons from a hydrocarbon mixture |
| 01/29/1998 | WO1998003258A1 Chemical process tower deentrainment assembly |
| 01/29/1998 | WO1998003253A1 Packing for separation columns and process of use |
| 01/29/1998 | CA2261146A1 Chemical process tower deentrainment assembly |
| 01/28/1998 | EP0821010A1 Method and apparatus for removing volatile constituents from highly viscous solutions or suspensions |
| 01/28/1998 | EP0820795A1 Process for the treatment of a liquid particularly for the separation of different components contained in the liquid and device therefor |
| 01/28/1998 | EP0820794A1 Reaction and distillation apparatus and process for the production of ethers |
| 01/28/1998 | EP0820793A2 Device and process for separating an alcohol concentrate from a water/alkohol mixture |
| 01/28/1998 | CN2273216Y Flow line type feeding gas sparger |
| 01/27/1998 | US5711950 Process for preparing microclustered water |
| 01/27/1998 | US5711873 Process for solvent recovery and apparatus suitable therefor |
| 01/27/1998 | US5711857 Microwave distillation apparatus |
| 01/21/1998 | EP0819669A1 Azeotropic and azeotrope-like compositions and a process for separating HC1 and halocarbons |
| 01/21/1998 | EP0819237A1 Heat pipe with improved energy transfer |
| 01/21/1998 | EP0693957B1 A multiple stage suspended reactive stripping process and apparatus |
| 01/21/1998 | EP0662856B1 Recovery of phenol from low concentrations with sodium sulfate |
| 01/21/1998 | CN1170620A Pipe type rectifying tower |
| 01/20/1998 | US5709780 Partitioned distillation column |
| 01/20/1998 | US5709264 For exchanging heat between first and second fluids |
| 01/15/1998 | WO1998001203A1 Fluid-distributor for a substance-exchange column |
| 01/15/1998 | CA2261643A1 Liquid distributor for a mass-transfer column |
| 01/14/1998 | EP0818231A1 Recovering water soluble, volatile, organic compounds from bakery and other plant emissions |
| 01/14/1998 | EP0818223A1 Methode and apparatus for controlling the pressure in a vacuum chamber of a distillation or sublimation device |
| 01/14/1998 | EP0720505B1 Method and apparatus for decontaminating a liquid surfactant of dioxane |
| 01/14/1998 | EP0706415B1 Multi-cell heating system |
| 01/13/1998 | US5707563 V-module fractionation tray |
| 01/13/1998 | US5707415 Method of vaporizing reactants in a packed-bed, column, film evaporator |
| 01/08/1998 | WO1998000484A1 Deodorisation plant for fatty oils |
| 01/08/1998 | DE19626895A1 Flüssigkeitsverteiler für eine Stoffaustauschkolonne Liquid distributor for mass transfer column |
| 01/08/1998 | DE19626893A1 Liquid distributor for mass transfer column with number of distribution channels |
| 01/08/1998 | CA2209005A1 Recovering water soluble, volatile, organic compounds from bakery and other plant emissions |
| 01/07/1998 | EP0816314A1 Process for the separation of mixtures of dimethyl ether and chloromethane |
| 01/07/1998 | EP0816313A1 Process for the preparation and separation of a mixture of dimethyl ether and chloromethane using methanol as the extractant |