| 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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| 02/05/2004 | CA2489164A1 Vapor-liquid contact trays and method employing same |
| 02/04/2004 | EP1386648A1 Heterogeneously catalysed reactive distillation process in suspension mode |
| 02/04/2004 | EP1385807A1 Process for improved yields of higher molecular weight olefins from lower molecular weight olefins |
| 02/04/2004 | EP1385593A1 Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex |
| 02/04/2004 | EP1385592A1 Evaporation method for the production of clean drinking water and high-percentage brine from untreated water containing salt |
| 02/04/2004 | EP0996499B1 Countercurrent reactor |
| 02/04/2004 | CN1473063A Method of simulating distilling plant |
| 02/04/2004 | CN1471990A Forced liquid extracting style parallel spray packing tower plates |
| 02/04/2004 | CN1137149C Device and method for removing unreacted monomer form polymer latex |
| 02/04/2004 | CN1137043C Process for purifying perfluorinated products |
| 02/04/2004 | CN1136936C Tower plate for gas baffling |
| 02/04/2004 | CN1136935C Parallel connection technology for flash tanks of terephthalic acid mother liquid |
| 02/03/2004 | US6685839 Apparatus and method for removing solvent residues |
| 02/03/2004 | US6685823 Inhibiting the premature polymerization of ethylenically unsaturated monomers by adding compounds selected from c-nitrosoaniline and quinone imine oxime compounds |
| 02/03/2004 | US6685802 Feeding stream of miscible liquid mixture into separation vessel, rapidly boiling or flashing by co-mingling with heated recycle liquor to produce vapor, separating vapor, collecting unvaporized components in liquid pool, extracting solids |
| 02/03/2004 | US6685801 Chambered circulation evaporator |
| 01/30/2004 | CA2396206A1 Process for the treatment of waste oils |
| 01/29/2004 | WO2004009572A1 Method for the continuous intermediate separation of the solvent used in the oxirane synthesis with no coupling product |
| 01/29/2004 | WO2004009571A1 Method for the continuous purification by distillation of 1,2-propylene glycol that accumulates during the synthesis of propylene oxide without coupling products |
| 01/29/2004 | WO2004009568A1 Method for the continuous production of propylene glycol |
| 01/29/2004 | WO2004009566A1 Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide |
| 01/29/2004 | WO2004009204A1 Method for continuously operated pure distillation of oxiranes, especially propylene oxide |
| 01/29/2004 | WO2004009203A1 Vacuum sealing arrangement for a liquid concentrator |
| 01/29/2004 | WO2002087721A3 Device for obtaining clean fresh water by distilling contaminated primary water |
| 01/29/2004 | US20040019247 Distillation in presence of a N-oxyl stabilizer, preventing premature polymerization |
| 01/29/2004 | US20040016704 Apparatus and method for removing solvent residues |
| 01/29/2004 | US20040016631 Wave powered evaporation desalination system |
| 01/29/2004 | DE10233382A1 Verfahren zur kontinuierlich betriebenen Reindestillation des bei der koppel-produktfreien Synthese von Propylenoxid anfallenden 1.2-Propylenglykols Method for the continuous purification by distillation of in the paddock-product-free synthesis resulting from propylene oxide-propylene glycol 1.2 |
| 01/29/2004 | DE10233381A1 Verfahren zur kontinuierlich betriebenen Destillation des bei der koppel-produktfreien Oxiransynthese verwendeten Lösungsmittels Process for the continuous distillation of the solvent used in the coupling-product-free oxirane |
| 01/29/2004 | CA2493714A1 Process for the continuously operated distillation of the solvent used in a coproduct-free oxirane synthesis |
| 01/29/2004 | CA2493707A1 Process for the continuous preparation of propylene glycols |
| 01/29/2004 | CA2493271A1 Process for the continuously operated purification by distillation of the methanol solvent used in the coproduct-free synthesis of propylene oxide, with the methoxypropanols and the high boilers being separated off simultaneously |
| 01/29/2004 | CA2493259A1 Continuously operated purification by distillation of the 1,2-propylene glycol formed in the coproduct-free synthesis of propylene oxide |
| 01/29/2004 | CA2489765A1 Method for continuously operated pure distillation of oxiranes, especially propylene oxide |
| 01/28/2004 | CN1136022C Inclined tower plates with obliqueholes |
| 01/28/2004 | CN1136021C Method for distilling polymericable compound and liquid containing polymericalbe compound |
| 01/27/2004 | US6682633 Apparatus for cocurrent fractional distillation |
| 01/27/2004 | US6682631 Evaporating a mixture of liquids having different volatilities and specific gravities, centrifuging at positive pressure before evaporation of the more volatile component occurs, and then progressively evacuating the chamber |
| 01/22/2004 | WO2004007434A1 Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine |
| 01/22/2004 | WO2004007371A1 Method for removing water from a mixture containing water and zinc chloride |
| 01/22/2004 | WO2004007046A1 Method and device for purifying waste water that is polluted with organic and/or inorganic matter |
| 01/22/2004 | US20040014996 Catalyzing the esterification reaction with acetic acid or acetic anhydride, forming tocopherol acetate or vitamin E acetate; heat exchanging |
| 01/22/2004 | US20040014938 Such as polyvinyl chloride; heating then depressurizing in chamber, introducing into vertical column divided into several chambers on which are superimposed perforated plates, then flushing with ascending stream of inert gas |
| 01/22/2004 | US20040011707 Feeding a continuous current of crude oil to turbomixer along with a continuous current of steam; subjecting both currents to mechanical action of paddled rotor; feeding into a fractionating column at a predetermined height level |
| 01/22/2004 | US20040011706 Distillation into a low-boiler, a medium-boiler and a high-boiler fraction in one or more dividing-wall columns, in which is arranged in longitudinal direction of column |
| 01/22/2004 | US20040011704 Providing a stream of waste oil; heating waste oil to vaporize oil therefrom; passing a supply line containing hydrogen through the heated waste oil to heat the hydrogen; injecting heated hydrogen into vaporized oil; recovering vaporized oil |
| 01/22/2004 | US20040011639 Method for purifying 2-chloro-5-chloromethyl thiazole |
| 01/22/2004 | US20040011637 Vacuum low-temperature distilled pure water dispenser |
| 01/22/2004 | DE10231296A1 Verfahren zur Entfernung von Wasser aus einer Mischung, die Wasser und Zinkchlorid enthält Provides procedures for the removal of water from a mixture comprising water and zinc chloride |
| 01/22/2004 | DE10230219A1 Verfahren der rektifikativen Auftrennung von (Meth)acrylmonomere enthaltende Fluiden A process for rectificative separation of (meth) acrylic monomers containing fluids |
| 01/21/2004 | CN2600161Y Gas-liquid distributor in gas-liquid parallel-flow reactor |
| 01/21/2004 | CN1469916A C-nitrosoaniline compounds and their blends as polymerization inhibitors |
| 01/21/2004 | CN1469765A Method and device for carrying out the distillative separation of C5+ cuts |
| 01/21/2004 | CN1468641A Mixing method for heterogeneous reaction and super strong turbulent mass transfer tower |
| 01/20/2004 | US6679975 Process for recovering the methanol contained in a liquid hydrocarbon feed |
| 01/20/2004 | US6679939 Fractional condensation of a product gas mixture containing acrylic acid |
| 01/15/2004 | WO2004005818A2 Improved split flow process and apparatus |
| 01/15/2004 | WO2004004861A1 Method for the rectifying separation of fluids containing (meth)acryl monomers |
| 01/15/2004 | US20040009882 Linear alkylbenzene sulfonate having various levels of 2-isomer content; useful for cleaning a wide variety of substrates, including laundry, hard surfaces, carpets, tubs and tile |
| 01/15/2004 | DE10230325A1 Bodenkolonne Soil column |
| 01/15/2004 | DE10229103A1 Vorrichtung und Verfahren zur thermischen Wasseraufbereitung Apparatus and method for thermal water treatment |
| 01/14/2004 | EP1380328A1 Heat integrated distillation column |
| 01/14/2004 | EP1379704A1 Method for separating zirconium and hafnium tetrachloride with the aid of a melted solvent |
| 01/14/2004 | EP1379486A1 Method for the processing of a liquid reaction discharge of the cationic polymerisation of isobutene |
| 01/14/2004 | CN1467203A Process for the purification of mixtures of toluenediisocyanate |
| 01/14/2004 | CN1467202A Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column |
| 01/14/2004 | CN1134404C Method for recovering acrylic acid |
| 01/13/2004 | US6677482 Method of manufacturing (meth) acrylic acid |
| 01/13/2004 | US6676838 After extraction of biomass |
| 01/13/2004 | US6676808 Method for starting up distilling column |
| 01/08/2004 | WO2004002926A2 Purification of n,n-dimethylacetamide |
| 01/08/2004 | WO2004002602A1 Internal heat exchange-type distillation column |
| 01/08/2004 | WO2002083260A3 Liquid distributor in mass transfer column and method of installation and use |
| 01/08/2004 | CA2491342A1 Purification of n,n-dimethylacetamide |
| 01/07/2004 | EP1378491A1 Process of treating an aqueous extract of vegetable origin with biopolymer additive and powder produced by spraying it |
| 01/07/2004 | EP1378282A1 Distillation apparatus |
| 01/07/2004 | EP1378281A1 Tray column |
| 01/07/2004 | EP1377623A1 Manufacture of cyclic ester oligomers |
| 01/07/2004 | EP1003699B9 Purification of difluoromethane by extractive distillation |
| 01/07/2004 | CN1466566A Process for producing lowr aliphatic caboxylic acid ester |
| 01/07/2004 | CN1133479C Liquid phase adsorption process for removing and concentrating heteroatom compounds in hydrocarbons |
| 01/06/2004 | US6673847 Distilling said porogen in the presence of a water soluble organic solvent |
| 01/06/2004 | US6673264 Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride |
| 01/06/2004 | US6673212 Of alkylene carbonate; by-product inhibition |
| 01/06/2004 | US6672572 Packed column for exchanging heat and/or mass |
| 01/06/2004 | CA2288312C Reactive distillation |
| 01/02/2004 | EP1373466A1 Device and method for cold thickening of must |
| 01/02/2004 | EP1373394A1 Biocidal plastics internal elements for mass transfer apparatus |
| 01/02/2004 | EP1372807A2 Ionic liquids as selective additives for the separation of close-boiling or azeotropic mixtures |
| 01/02/2004 | EP1372806A1 Gas-liquid separator |
| 01/01/2004 | US20040000474 Liquid-continuous column distillation |
| 01/01/2004 | US20040000473 Separation of solvent by distillation |
| 01/01/2004 | US20040000472 Trays containing catalyst particles; separation mixture |
| 01/01/2004 | US20040000470 From aqueous solution containing acetic acid; distillation |
| 12/31/2003 | WO2004000734A1 Process for the recovery of fluorine-containing emulsifiers |
| 12/31/2003 | WO2004000733A1 Thermal water treatment device and method |
| 12/31/2003 | WO2004000433A2 Vapor-liquid contact tray and method employing same |
| 12/31/2003 | WO2003089445A3 Simultaneous reaction and separation process for the manufacture of dianhydro sugar alcohols |
| 12/31/2003 | WO2003055268A3 Continuous process for controlled evaporation of colloidal solutions |
| 12/31/2003 | CN1132787C Combined mechanism for elevating aerator and swinging packings freely |