| 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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| 07/01/1997 | US5643408 Elevated reservoir, elongate inclined conduit, heat source for volatilizing dioxane |
| 06/28/1997 | CA2194084A1 Process for selective reduction of benzene and of light unsaturated compounds in a section of hydrocarbons |
| 06/26/1997 | WO1997022551A1 Process for producing aqueous solutions of free hydroxylamine |
| 06/26/1997 | WO1997022550A1 Process for separating medium boiling substances from a mixture of low, medium and high boiling substances |
| 06/25/1997 | EP0780646A2 Heat exchanger and double distillation column |
| 06/25/1997 | EP0780361A1 Manufacturing method for aromatic carbonates |
| 06/25/1997 | EP0780147A2 Regulation process of a rectification column or a thermally coupled distillation column |
| 06/25/1997 | EP0780146A1 Steam-heated apparatus for evaporating and thickening liquids |
| 06/25/1997 | EP0779829A1 Process and device for desalinating sea water |
| 06/24/1997 | US5641436 Liquid-vapor contact column |
| 06/19/1997 | DE19547151A1 Separation and recovery of heavy metals such as cadmium@ and mercury@ from old batteries |
| 06/18/1997 | EP0779088A1 Apparatus and process for simultaneous destillation and extraction |
| 06/17/1997 | US5640491 Control system using an adaptive neural network for target and path optimization for a multivariable, nonlinear process |
| 06/17/1997 | US5639354 Distillation device |
| 06/17/1997 | US5638691 Falling film evaporator with refrigerant distribution system |
| 06/15/1997 | CA2192993A1 Apparatus and process for simultaneous distillation and extraction |
| 06/12/1997 | WO1997020607A1 Simplified automated distillation system for recovering a solvent from a liquid mixture |
| 06/12/1997 | WO1997020606A1 A method and a device for purifying water |
| 06/12/1997 | DE19545915A1 Regeneration of charged solvent containing two or more components |
| 06/11/1997 | EP0778062A2 Method and apparatus for solvent recovery from waste wash liquid of printing machine |
| 06/11/1997 | EP0730483A4 Evaporation means and method |
| 06/11/1997 | CN1151394A Continuous distillative separation of liquid mixtures which contain (meth) acrylic acid as main component |
| 06/10/1997 | US5637777 Reacting isoolefins and lower aliphatic alcohols in presence of ion exchange resin catalyst |
| 06/05/1997 | WO1997020013A1 Process for distilling a liquid product |
| 06/04/1997 | EP0776695A1 Packing for a high-pressure counterflow column |
| 06/04/1997 | EP0550534B1 Process for recovering ethylene glycol during the disposal of industrial liquid wastes containing glycol |
| 06/04/1997 | CN1151124A Column for counter-currently contacting gas and liquid |
| 06/04/1997 | CN1035041C Filling material of tower for material and/or heat exchange |
| 06/03/1997 | US5635077 Ammonia removal |
| 06/03/1997 | US5635035 Etching improves wettability and efficiency in mass transfer |
| 05/29/1997 | WO1997019069A1 Process for distilling ethylene oxide |
| 05/29/1997 | CA2233209A1 Distillation of ethylene oxide |
| 05/28/1997 | EP0775004A1 Separation of components of mixtures |
| 05/28/1997 | EP0774956A1 PROCESS FOR PREPARING BECLOMETHASONE DIPROPIONATE FREON$m(3) CLATHRATE |
| 05/28/1997 | CN1150593A Apparatus and method for removing residual monomers |
| 05/27/1997 | US5632962 Process vessel |
| 05/27/1997 | US5632935 Vapor-liquid contact tray and downcomer assembly and method employing same |
| 05/27/1997 | US5632934 Packing with improved capacity for rectification systems |
| 05/27/1997 | US5632933 Method and apparatus using guide vanes for vapor distribution in mass transfer and heat exchange columns |
| 05/27/1997 | US5632867 Recovering a relatively volatile component of a solution from a less volatile component, e.g. as in solvent recovery |
| 05/27/1997 | US5632866 Purification |
| 05/27/1997 | US5632865 Heating; injecting into vapor stream |
| 05/27/1997 | US5632864 Splash shield for distillation unit |
| 05/27/1997 | US5632797 Method of providing vaporized halide-free, silicon-containing compounds |
| 05/22/1997 | DE19647126A1 Mehrstufen-Blasensäule mit Lochplatten Multi-stage bubble column with perforated plates |
| 05/22/1997 | DE19542829A1 Verfahren zur Destillation von Ethylenoxid A process for the distillation of ethylene oxide |
| 05/21/1997 | EP0773828A1 Non-welded support plate member |
| 05/20/1997 | US5630914 Vapor pressure |
| 05/20/1997 | US5630913 Water distillation system |
| 05/20/1997 | US5630434 Filter regeneration system |
| 05/15/1997 | WO1997017585A1 Rotatable heat transfer apparatus |
| 05/14/1997 | EP0773050A1 Method and apparatus for producing co-current fluid contact |
| 05/14/1997 | EP0772485A1 Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 05/14/1997 | EP0772483A1 Column for contacting gas and liquid |
| 05/14/1997 | CN2254077Y Power-saving distilled water machine |
| 05/14/1997 | CN1149872A Method of recovering and dehydrating ethylene sulfide |
| 05/14/1997 | CN1149839A Process for deodorising and stabilising biotechnologically extracted valuable substances and their aqueous preparation |
| 05/14/1997 | CA2189607A1 Method and apparatus for producing co-current fluid contact |
| 05/13/1997 | US5629467 Process and apparatus for the separation of p-xylene in C8 aromatic hydrocarbons with a simulated moving bed adsorption and a crystallization |
| 05/13/1997 | US5629258 Flat structural elements and a packing composed of such structural elements |
| 05/13/1997 | US5628969 Chemical separation and reaction apparatus |
| 05/13/1997 | US5628901 Vessel for treating liquids |
| 05/13/1997 | US5628880 Etherification--hydrogenation process |
| 05/09/1997 | WO1997016243A2 Method of chemically reacting substances in a reaction column |
| 05/07/1997 | DE19543049A1 Contacting gas or vapour with liquid |
| 05/07/1997 | DE19541213A1 Verfahren zur chemischen Umsetzung von Stoffen in einer Reaktionskolonne A process for the chemical conversion of substances in a reaction column |
| 05/07/1997 | CN1148994A Mass transfer in plate columns and apparatus for this purpose |
| 05/07/1997 | CN1148993A Comprehensive purifying apparatus for waste acetone and toluene solvant |
| 05/06/1997 | US5626799 Heat-mass exchange system |
| 05/02/1997 | EP0733050A4 Process for the production of trioxane from formaldehyde |
| 05/01/1997 | WO1997015366A1 An automatic recycling device for laboratory solvents and volatile chemicals |
| 04/30/1997 | CN1148845A Process and device for recovering amines and use of residues obtainable thereby |
| 04/29/1997 | US5624534 Volatiles separator and concentrator |
| 04/26/1997 | CA2182898A1 Inhibition of organic deposition using additives to retard settling |
| 04/24/1997 | WO1997014517A1 Chemical separation and reaction apparatus |
| 04/24/1997 | DE19539295A1 Purification of methacrylic or acrylic acid by distillation separation |
| 04/24/1997 | CA2188589A1 Continuous distillative separation of liquid mixtures which contain (meth)acrylic acid as the main component |
| 04/23/1997 | EP0769316A1 Distributor for independently injecting and/or collecting fluids |
| 04/23/1997 | CN2252657Y Pagoda-shape liquid collector with layers structure |
| 04/22/1997 | US5622605 Heating in a boiler; removal concentrated brines; expansion of steam across a turbine |
| 04/17/1997 | DE19538214A1 Regeneration of contaminated solvents from dry cleaning of textiles |
| 04/16/1997 | EP0768106A1 Process and apparatus for fractionating a fluid containing separable multi components, e.g. a natural gas |
| 04/16/1997 | CN1147772A Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature |
| 04/16/1997 | CN1147412A Parallel jet compounding tower |
| 04/16/1997 | CN1147411A Oil-water separator |
| 04/15/1997 | US5620568 Extractive distillation of propylene oxide using propanol |
| 04/15/1997 | US5620561 Vortex evaporation |
| 04/10/1997 | WO1997012654A1 Method for recovering acetone |
| 04/10/1997 | DE19531806C1 Fine distillation of 6-24C fatty acids from plant or animal fats etc. |
| 04/09/1997 | EP0766596A1 Two-phase distributor system for downflow reactors |
| 04/09/1997 | CN2251431Y Column plate for gas-liquid mass transfer |
| 04/09/1997 | CN2251430Y Return flow device for solvent naphtha |
| 04/08/1997 | US5618473 Fractionation trays |
| 04/08/1997 | US5618432 Process for solvent recovery |
| 04/08/1997 | US5617742 Distillation apparatus |
| 04/08/1997 | US5617740 Method of producing ultra high purity monosilane and apparatus therefor |
| 04/08/1997 | CA2094407C Propylene carbonate recovery process |
| 04/03/1997 | WO1997011764A1 Distillation of vinylaromatic monomer |
| 04/03/1997 | DE19605061C1 Vacuum micro-distillation apparatus for distilling radioactive material |
| 04/03/1997 | CA2232954A1 Distillation of vinylaromatic monomer |