| Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025) |
|---|
| 01/02/1991 | EP0405781A1 Method and apparatus for the preparation of methyl tertiary butyl ether |
| 01/02/1991 | CA1278638C Process for continuously removing monomers from an aqueous dispersion of a polymer |
| 01/01/1991 | US4981621 Regular packing element of thin foil-like material for mass transfer and heat exchange columns |
| 01/01/1991 | US4981265 Liquid distributor for mass-transfer and heat-exchange columns |
| 12/27/1990 | EP0403538A1 Process for treatment of drilling mud |
| 12/25/1990 | US4980032 Two-stage, vacuum; the first first removes low boiling fractions and retard loss of acid by reflux; wate acid from semiconductor processing |
| 12/25/1990 | US4979886 Spray aeration of heated water stream under vacuum |
| 12/20/1990 | DE3919296A1 Sepg. column for vapours - produced by waste heat around evaporator tubes in permeable plastic sleeves |
| 12/18/1990 | US4978807 Method for the preparation of methyl tertiary butyl ether |
| 12/18/1990 | US4978547 Process for producing low-alcohol wine |
| 12/18/1990 | US4978518 Chlorinationl, steam distilling of bromide-rich brines |
| 12/18/1990 | CA1277945C Purification process of polymerization solvent |
| 12/15/1990 | WO1990015652A1 Multistage evaporating system |
| 12/12/1990 | EP0402019A2 Distillation column reactor |
| 12/12/1990 | EP0401631A2 A continuous process for the separation of a partially water soluble component from a slurry |
| 12/12/1990 | EP0281630A4 Axial swirler of contact-separation element |
| 12/11/1990 | US4976824 Water distillation and aeration apparatus |
| 12/11/1990 | US4976823 Support ring with additional void space |
| 12/10/1990 | WO1990014872A1 Method and apparatus for clarifying liquids |
| 12/10/1990 | CA2034006A1 Method and apparatus for clarifying liquids |
| 12/07/1990 | CA2017980A1 Distillation column reactor |
| 12/05/1990 | EP0400169A1 Removal of volatile acids from aqueous solutions |
| 12/04/1990 | US4975156 Process for the separation of hydrogen fluoride, 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane from liquid mixtures thereof |
| 11/28/1990 | EP0399715A2 Process for preparing polyacrylates |
| 11/28/1990 | EP0399675A2 Closed system refrigeration using a turboexpander |
| 11/28/1990 | EP0399197A1 Process and apparatus for the low temperature separation of air |
| 11/28/1990 | EP0399193A2 Extractive distillation of hydrocarbons employing solvent mixture |
| 11/28/1990 | EP0383805A4 A low pressure distillation apparatus |
| 11/27/1990 | US4973430 Continuous hydrogenation of unsaturated oils |
| 11/27/1990 | CA1276872C Distributor for a column |
| 11/22/1990 | EP0398411A2 Water-in-oil dispersion and process for preparing such dispersion |
| 11/22/1990 | CA2016743A1 Process for preparing polyarylates |
| 11/21/1990 | CN1010459B Multiparameter batch rectification technique |
| 11/20/1990 | US4971661 Purification of propylene oxide using an aqueous acetone extractive distillatin agent |
| 11/20/1990 | US4971660 Vacuum distillation, refining and deodorizing edible oils, he at exchanging, microwaves |
| 11/15/1990 | WO1990013342A1 Method of evaporating warm liquid |
| 11/14/1990 | EP0396650A1 Device for carrying out catalytic reactions. |
| 11/13/1990 | US4970030 Process for contacting substances which occur in different phases |
| 11/13/1990 | CA1276375C Process and apparatus for producing high molecular weight polyesters |
| 11/13/1990 | CA1276059C Method and apparatus for deactivating spent liquors |
| 11/07/1990 | EP0396395A2 Method and apparatus for simultaneous heat and mass transfer utilizing a plurality of gas streams |
| 11/07/1990 | EP0395898A1 Process for the separation of hydrogen fluoride, 1-1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane from liquid mixtures thereof |
| 11/04/1990 | CA2013822A1 Process for the separation of hydrogen fluoride, 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethand from liquid mixtures thereof |
| 11/01/1990 | WO1990012756A1 Process and device for treating brines and contaminated mineral salts or mixtures thereof |
| 10/31/1990 | EP0394607A1 Method and apparatus for the treatment of brines and polluted mineral salts and their mixtures |
| 10/31/1990 | DE3914317A1 Removing distn. residues from container - by stirrer arms rotating in spring-loaded edge contact with inclined floor |
| 10/31/1990 | CN1046471A Jet preheat |
| 10/24/1990 | EP0393402A1 Process for the purification of heavy metal-containing waste gas with high chloride content |
| 10/24/1990 | EP0393029A1 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents. |
| 10/24/1990 | CN1010095B Process of treating acidic water |
| 10/24/1990 | CA2014954A1 Process and apparatus for the treatment of brines and contaminated mineral salts or mixtures thereof |
| 10/23/1990 | US4964957 Purification of high boiling alkyl sulfides |
| 10/18/1990 | WO1990011808A1 Solvent recovery apparatus and method |
| 10/17/1990 | CA2014306A1 Process for the purification of waste gas having a high chloride content |
| 10/16/1990 | CA1275241C High turndown bubble cap tray |
| 10/10/1990 | EP0391521A2 A device having a porous polytetrafluoroethylene tube secured in an apertured wall, and the manufacture thereof |
| 10/09/1990 | US4961826 Withdrawing vapor stream for heat exchanging, then returning it; separation of aqueous mixtures |
| 10/03/1990 | EP0390596A2 Combined etherification and alkylation process |
| 10/03/1990 | CN1045709A Multi-passageway eddy flow packing elements |
| 09/30/1990 | WO1990011124A1 Tower packing cartridge |
| 09/27/1990 | DE3909128A1 Diskontinuierliches verfahren zum fuehren einer heterogen katalysierten reaktion und anlage zum heterogen katalysierten herstellen von produkten Batch process to lead a heterogeneously catalyzed reaction system and connect to the heterogeneously catalyzed by products |
| 09/25/1990 | CA1274399A1 Cogeneration of electricity and refrigeration by work expanding pipeline gas |
| 09/21/1990 | WO1990011114A1 Discontinuous process for conducting a heterogeneously catalysed reaction and installation for heterogeneously catalysed manufacture of products |
| 09/21/1990 | CA2050495A1 Discontinuous process for conducting a heterogeneously catalysed reaction and installation for heterogeneously catalysed manufacture of products |
| 09/19/1990 | EP0387674A2 Process for the continuous preparation of an anhydrous mixture of methyl acetate and methanol |
| 09/19/1990 | EP0387482A1 Rectification column for separating feeds with a higher boiling point difference |
| 09/19/1990 | EP0216871B1 Device for the continuous removal of vapours or gases from liquids with a foam-forming tendency |
| 09/19/1990 | CN1045357A Downcomer-tray assembly |
| 09/19/1990 | CN1009651B Process and apparatus for producing high molecular weight polyesters |
| 09/18/1990 | US4958000 Purification of the starting diester, improved color and melt stability |
| 09/18/1990 | US4957200 Water distillation apparatus |
| 09/12/1990 | EP0387080A1 Alkylation of organic aromatic compounds |
| 09/12/1990 | EP0386961A2 Downcomer-tray assembly |
| 09/12/1990 | EP0386385A1 Installation for obtaining spirits and liquors |
| 09/11/1990 | US4956518 Heterogeneous isoparaffin/olefin alkylation |
| 09/11/1990 | US4956127 Downcomer-tray assembly and method |
| 09/11/1990 | US4955468 Separation of hydrocarbon mixtures |
| 09/10/1990 | WO1990010497A1 Multiple vortex-mixing insert |
| 09/10/1990 | CA2011858A1 Alkylation of organic aromatic compounds |
| 09/07/1990 | WO1990009831A1 Model-supported diagnostic and control device for rectifying columns |
| 09/05/1990 | EP0385130A2 Process and apparatus for the separation of a mixture of substances coming from an extractor |
| 09/05/1990 | CN1045173A Method and apparatus for separating air by means of rectification |
| 09/04/1990 | US4954371 Flash evaporation of monomer fluids |
| 09/04/1990 | US4954223 Distillation apparatus |
| 09/04/1990 | US4954222 Dry cleaning solvent filtration and recovery system with filter rinsing apparatus |
| 09/04/1990 | US4954147 Water conditioning apparatus and method |
| 09/04/1990 | US4953694 Distilling apparatus |
| 09/04/1990 | US4953607 Multistage evaporating system |
| 08/30/1990 | DE3906002A1 Modellgestuetzte analyse- und regeleinrichtung fuer rektifikationskolonnen Modellgestuetzte analysis and control device for rectification |
| 08/29/1990 | EP0384483A2 Air rectification process and apparatus |
| 08/29/1990 | EP0384055A1 Packing support and its use in contact towers |
| 08/29/1990 | EP0383994A2 Air rectification process and apparatus |
| 08/29/1990 | EP0383805A1 A low pressure distillation apparatus. |
| 08/29/1990 | EP0186694B1 Process for recovery of methacrylic acid |
| 08/28/1990 | US4952503 Process for the production of ethanol |
| 08/28/1990 | US4952290 Waste water treatment and recovery system |
| 08/21/1990 | US4950834 Reacting benzene and propylene to produce cumene; omega type and Y type molecular sieves |
| 08/21/1990 | US4950363 Flashing feed inlet in a vapor/liquid contacting tower and method |
| 08/16/1990 | EP0382317A2 Draw-off device |
| 08/16/1990 | EP0382316A2 Vacuum distillation process |