| 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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| 10/13/1999 | CN1231654A Process for concurrent selective hydrogenation of acetylenes and 1,2 butadiene in hydrocarbon streams |
| 10/13/1999 | CN1231209A Trough box type liquid no-limiting distributer |
| 10/13/1999 | CN1045619C Distillating process and apparatus for quick separation of bay oil |
| 10/13/1999 | CN1045544C Gas and liquid contacting column |
| 10/13/1999 | CN1045543C Comprehensive purifying apparatus for waste acetone and toluene solvant |
| 10/12/1999 | US5964986 Distillation plant |
| 10/07/1999 | WO1999050235A1 Apparatus and process for the preparation of urea from carbon dioxide and ammonia |
| 10/07/1999 | DE19815336A1 Control of rectification temperature in potable alcohol still |
| 10/06/1999 | EP0946231A1 Countercurrent reaction vessel |
| 10/06/1999 | EP0846027B1 Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing |
| 10/05/1999 | US5962761 Process for linear alpha-olefin production |
| 10/05/1999 | US5961815 Hydroconversion process |
| 10/05/1999 | US5961787 Solvent extraction apparatus |
| 10/05/1999 | CA2118836C Process and apparatus for producing terephthalic acid |
| 09/30/1999 | WO1999048872A2 Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative |
| 09/30/1999 | WO1999048855A1 Process and apparatus for the production of butylacetate and isobutylacetate |
| 09/30/1999 | WO1999035152A3 Lower alkyl alcohol recovery from a stripping mixture |
| 09/30/1999 | CA2323617A1 Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative |
| 09/29/1999 | CN2340498Y Quick gas-solid separator with outlet of lift pipe of hyperflow circulation pre-stripper |
| 09/29/1999 | CN2340484Y Separator for spirit distillation |
| 09/29/1999 | CN1045285C Combined distillation and permeation process for separation of oxygenated compounds from hydrocarbons |
| 09/28/1999 | US5958192 Purification of propylene oxide using ethylene glycol monomethyl ether as an extractive distillation agent |
| 09/28/1999 | US5958191 Column for the separation of a volatile liquid from a mixture with another liquid of lower volatility |
| 09/28/1999 | US5958110 Flowing dry air stream into glycol solution within chamber to dehydrate glycol, discharging humidified air and reusing purified glycol, i.e. aircraft de-icing, heat exchanger fluid |
| 09/28/1999 | US5956972 Vaporization using reboilers |
| 09/28/1999 | CA2085211C Stripping system |
| 09/23/1999 | WO1999047251A1 Continuous slurry polymerization volatile removal |
| 09/23/1999 | DE19812427A1 Separation of azepine derivative for purification of amine, especially polyamide precursor |
| 09/23/1999 | DE19811840A1 Cleaning apparatus for cleaning cable engineering tools such as paint nozzles or extrusion heads |
| 09/22/1999 | EP0921850A4 Packing for separation columns and process of use |
| 09/22/1999 | EP0907392A4 Water treatment device and method |
| 09/22/1999 | EP0781164B1 Method for in-situ modernization of a urea synthesis reactor |
| 09/21/1999 | US5955135 Low temperature vacuum distillation and concentration process |
| 09/21/1999 | US5954924 Distillation of vinylaromatic monomer |
| 09/21/1999 | US5953936 Distillation process to separate mixtures containing three or more components |
| 09/21/1999 | CA2116154C Orderly packing for a column |
| 09/16/1999 | DE19828884C1 High-velocity mass-exchange standpipes fitted in tray of gas-liquid contacting column |
| 09/15/1999 | CN1228760A Process for separating by distillation pure (meth) acrylic acid from mixture |
| 09/15/1999 | CN1228714A Water treatment device and method |
| 09/14/1999 | US5951853 Using ammonia or ammonia and steam mixture in specific ratios as stripping gas reduces corrosivity of crudes in a refinery pipestill while decreasing the amount of steam used for atmospheric pipestill stripping |
| 09/14/1999 | US5951828 Purifying n-vinylformamide to remove formamide impurities |
| 09/14/1999 | US5951827 High capacity trays |
| 09/14/1999 | US5951748 Compositions and methods for inhibiting fouling of vinyl monomers |
| 09/14/1999 | US5950454 Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing |
| 09/10/1999 | WO1999044709A1 Stripping of volatile substances from less volatile fluids |
| 09/10/1999 | WO1999019110A3 Apparatus and method for tray valve attachment |
| 09/08/1999 | CN1228032A Catalytic distillation process |
| 09/08/1999 | CN1044976C Multiple overflow compound inclined holes tower |
| 09/07/1999 | US5948948 Reaction zone is at least partially internal to the distillation zone, and wherein the hydrogen-containing gas is fed by a dedicated gas distributor to the bottom of at least one catalytic bed within the isomerization reaction zone. |
| 09/07/1999 | US5948212 Titanium separation process |
| 09/07/1999 | US5948211 Distillation column downcomer having liquid permeable wall |
| 09/07/1999 | US5948209 Elongated conduit having constriction through which stripping gas flow accelerates and to which liquid to be stripped of volatile impurities is also fed and atomized into fine high velocity mist; deodorizing/steam refining of fats and oils |
| 09/02/1999 | WO1999043995A1 Method and device for heat pump with spontaneous flow |
| 09/02/1999 | WO1999043406A1 Spent caustic pretreatment and enhanced oxidation process |
| 09/02/1999 | WO1999043405A1 Method and apparatus for determining temperature of and controlling the evaporation of liquid samples |
| 09/01/1999 | EP0939287A1 Apparatus and process for removing volatile components from a composition |
| 09/01/1999 | EP0939116A2 Process and apparatus for the continuous treatment of vegetable and ester waste oils |
| 09/01/1999 | EP0939056A1 Device for treatment and removal of aqueous liquids by controlled atmospheric action |
| 09/01/1999 | EP0938531A1 Hydroconversion process |
| 09/01/1999 | EP0938469A1 Process for purifying acrylonitrile |
| 09/01/1999 | CN1227132A Distilling apparatus and distilling method |
| 09/01/1999 | CN1044863C Apparatus of improved flat plate heat exchanger design for polymer devolatilizer |
| 08/31/1999 | US5943867 Refrigerant reclamation system |
| 08/25/1999 | EP0937488A2 Distillation method and distillation apparatus |
| 08/25/1999 | CN2334473Y Stripping tower for making urban gas by utilizing air absorbing light hydrocarbon carbon five-oil |
| 08/25/1999 | CN1226454A Process for refining heat-deteriorative compound, contained in multi-component liquid mixture by distillation |
| 08/24/1999 | US5942456 Multi-functional catalytic distillation structure |
| 08/24/1999 | US5942197 Countercurrent reactor |
| 08/24/1999 | US5942164 Combined heat and mass transfer device for improving separation process |
| 08/24/1999 | US5942162 Two-phase downflow liquid distribution device |
| 08/19/1999 | WO1999040988A1 System for the distillation of liquid products |
| 08/18/1999 | EP0936391A1 Coupling for flanges of pipes and/or openings of containers, in particular for laboratory apparatuses |
| 08/18/1999 | EP0763082B1 Vacuum vessel for continuous or semicontinuous treatment of fatty oils |
| 08/18/1999 | CN1226185A Method and device for oxidizing hydrocarbon to acid |
| 08/18/1999 | CN1226181A Column and process for deodorising dispersions |
| 08/17/1999 | US5940578 Water evaporation apparatus |
| 08/17/1999 | US5939031 Countercurrent reactor |
| 08/17/1999 | US5938853 For use in producing preforms which can be used to produce optical or acoustic waveguide fibers either directly or through intermediate production of core cane, silicon dioxide |
| 08/12/1999 | DE19804010A1 Verfahren und Vorrichtung zur Gewinnung von Pflanzen-Inhaltsstoffen Method and apparatus for the production of plant ingredients |
| 08/11/1999 | CN1225386A Methanol-free fragrance distilled spirit and method for producing same |
| 08/11/1999 | CN1044568C Distilling separation method suitable for thermosenisitive substance with simultaneously removing light and heavy impurities |
| 08/10/1999 | US5935389 Liquid distributor tray |
| 08/10/1999 | US5935388 Distillation plant with a heat pump |
| 08/05/1999 | WO1999038392A1 Method and device for extracting plant ingredients |
| 08/05/1999 | WO1999019110A9 Apparatus and method for tray valve attachment |
| 08/05/1999 | DE19803711A1 Process and assembly to monitor continually operated distillation process |
| 08/04/1999 | EP0933331A2 Evaporative concentration apparatus for waste water |
| 08/04/1999 | EP0933107A1 Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation |
| 08/04/1999 | EP0859653B1 Method of chemically reacting substances in a reaction column |
| 08/04/1999 | EP0800489B1 Vertical, packed-bed, film evaporator for halide-free, silicon-containing compounds |
| 08/04/1999 | CN2331402Y Liquid discharging plate of high-performance column plate |
| 08/04/1999 | CN2331401Y Bubbing apparatus of high-performance column plate |
| 08/04/1999 | CN2331400Y Miniature float valve tray |
| 08/04/1999 | CN1225081A Recovery of styrene from pyrolysis gasoline by extractive distillation |
| 08/04/1999 | CN1224697A Evaporative concentration apparatus for waste water |
| 08/03/1999 | US5932074 Method and an apparatus for the desalination of seawater |
| 08/03/1999 | US5932073 Distillation apparatus |
| 07/29/1999 | DE19901169A1 Apparatus for recovering solvent from residual slurry from dry cleaning machine for textiles and metal parts |
| 07/28/1999 | EP0931049A1 Process for separating by distillation pure (meth)acrylic acid from mixtures |
| 07/28/1999 | EP0931042A1 Process for concurrent selective hydrogenation of acetylenes and 1,2 butadiene in hydrocarbon streams |