| Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025) |
|---|
| 02/24/1999 | CN1209114A Process for preparing alkyl ethers and mixtures thereof |
| 02/24/1999 | CN1209108A Process for producing aqueous solutions of free hydroxylamine |
| 02/24/1999 | CN1209077A Etherification-hydrogenation process |
| 02/24/1999 | CN1208664A Double-functional packing type catalytic and distillation equipment and catalyst therewith |
| 02/24/1999 | CN1208663A Catalysis-distillation equipment by mixing erecting catalyst with fraction elements |
| 02/23/1999 | US5874525 Devolatilizer tray array |
| 02/21/1999 | CA2245314A1 Method for removal of residual organic solvents and use thereof in maufacturing pharmaceuticals |
| 02/18/1999 | WO1999007660A1 Purification of difluoromethane by extractive distillation |
| 02/17/1999 | CN2308064Y Household distilled water producer |
| 02/17/1999 | CN1207952A Composite filler tower |
| 02/11/1999 | WO1999006322A1 Solar-powered water desalinisation plant |
| 02/11/1999 | WO1999006130A1 Liquid distributor |
| 02/11/1999 | CA2289632A1 Liquid distributor |
| 02/10/1999 | EP0895982A1 Process for the purification of hydroxypivalyl hydroxypivalate |
| 02/10/1999 | CN2306819Y Rectifier for processing hard to separate material |
| 02/09/1999 | US5868970 Liquid distributor for heat and mass exchange device, distillation column comprising such a distributor and use of such a column for distillation of air |
| 02/09/1999 | US5868908 Separation of inorganic salts from dimethyl sulfoxide |
| 02/09/1999 | US5868906 Dehydration and purification of isopropyl alcohol to an ultradry and ultrapure level |
| 02/09/1999 | US5868199 Method and apparatus for reboiling a liquefied gas mixture |
| 02/04/1999 | WO1999005083A1 Apparatus and process for catalytic distillations |
| 02/04/1999 | WO1998050127A3 Operation method of a plant for distilling liquid products and plant for realising the same |
| 02/04/1999 | DE19729515C1 Evaporator assembly for the production of sugar from sugar juice |
| 02/03/1999 | EP0895037A2 Rectifying apparatus for absorption refrigerator |
| 02/03/1999 | CN2306052Y Water vapour distiller for separating and purifying petroleum chemical products |
| 02/03/1999 | CN1206816A Rectifier for absorption refrigerating machine |
| 02/03/1999 | CN1206694A Multi-stage distilled water making device |
| 02/03/1999 | CN1206693A Improved countertop distiller |
| 02/03/1999 | CN1041896C Crown element for conveying matter to the packing of a matter-exchange tower |
| 02/02/1999 | US5865957 Method for producing butyraldehydes |
| 01/28/1999 | WO1999003785A1 Device for treatment and removal of aqueous liquids by controlled atmospheric action |
| 01/28/1999 | WO1999003555A1 Tray assembly for a chemical process tower |
| 01/28/1999 | WO1999003554A1 Venturi swirl tube for vapor liquid contact tray |
| 01/28/1999 | WO1999003553A1 Tray-to-tray transfer device for chemical process tower |
| 01/28/1999 | WO1998047591A3 Operation process of a pumping-ejection stand for distilling liquid products |
| 01/27/1999 | CN2305237Y Connector for filler multiple pipe tower |
| 01/27/1999 | CN2305236Y Spray float valve tower plate |
| 01/27/1999 | CN1206354A Catalytic distillation structure |
| 01/27/1999 | CN1041820C Process for production of acetic acid |
| 01/21/1999 | WO1999002236A1 Method and apparatus for fractional distillation |
| 01/20/1999 | EP0891212A1 High capacity vapor-liquid contact tray |
| 01/20/1999 | EP0825894A4 Dehydration and purification of isopropyl alcohol |
| 01/20/1999 | EP0721557B1 thermodynamic separation |
| 01/20/1999 | CN1205677A Process for separating medium boiling substances from mixture of low, medium and high boiling substances |
| 01/20/1999 | CN1205647A Small compact vacuum distillation appts. |
| 01/20/1999 | CN1041693C Catalytic reaction rectifying tower and its usage |
| 01/19/1999 | CA2105992C Random packing element and method |
| 01/19/1999 | CA2035701C Active liquid distributor containing, packed column |
| 01/14/1999 | WO1999001193A1 Distllation columns for fractionation |
| 01/14/1999 | DE19729258A1 Cleaning of solvent, e.g. per:chlor:ethylene |
| 01/13/1999 | EP0890582A1 Method of recovering low-boiling substances from a polymer latex |
| 01/13/1999 | EP0890551A2 Steam heated apparatus to evaporate or concentrate liquids |
| 01/13/1999 | EP0826021A4 Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams |
| 01/13/1999 | CN1204640A Preparation of esters |
| 01/13/1999 | CN1204639A Method for recovering acrylic acid |
| 01/13/1999 | CN1204543A Full effective region cross flow tower plate |
| 01/13/1999 | CN1041604C Cone screen plate gas-liquid distributor |
| 01/12/1999 | US5858213 Monitoring for coke formation during hydrocarbon feed processing |
| 01/12/1999 | US5858177 Process and apparatus for vapor compression distillation using plate and frame heat exchanger |
| 01/12/1999 | US5858176 Compositions and methods for inhibiting fouling of vinyl monomers |
| 01/12/1999 | US5858169 Process for the simplified separation of multicomponent mixtures of at least partly organic origin |
| 01/07/1999 | WO1999000484A1 Method for concentrating a solution such as grape must at low temperature and atmospheric pressure |
| 01/07/1999 | WO1999000182A1 Countercurrent reactor |
| 01/07/1999 | WO1999000181A1 Countercurrent reactor |
| 01/07/1999 | EP0889035A1 Process for the purification of quinaldine |
| 01/07/1999 | EP0888156A1 Method and apparatus for concurrent reaction with distillation |
| 01/07/1999 | EP0647159B1 Catalytic distillation structure |
| 01/07/1999 | DE19829809A1 Ester production, especially butyl acetate in good purity |
| 01/05/1999 | US5855741 Apparatus for concurrent reaction with distillation |
| 12/30/1998 | WO1998058720A2 Solvent recovery system |
| 12/30/1998 | EP0887429A1 Process and apparatus for treating heavy metals and halogenated hydrocarbons containing materials by thermal evaporation in vacuum |
| 12/30/1998 | EP0887334A1 Method for recovering acrylic acid |
| 12/30/1998 | CN1203115A Distributor device for column |
| 12/29/1998 | US5853671 Condenser cooling and temperature control system |
| 12/29/1998 | US5853549 Desalination of seawater by evaporation in a multi-stack array of vertical tube bundles, with waste heat. |
| 12/29/1998 | CA2164752C Chemical reactor feed control |
| 12/29/1998 | CA2061307C Producing carbon-14 isotope from spent resin waste |
| 12/24/1998 | DE19725851A1 Verfahren zur Herstellung hochreiner, wässriger Hydroxylaminlösungen Process for the preparation of high-purity aqueous hydroxylamine |
| 12/24/1998 | DE19723874A1 Distillation and separation vessel |
| 12/23/1998 | WO1998058090A2 A method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode |
| 12/23/1998 | WO1998057891A1 Water evaporation apparatus |
| 12/23/1998 | WO1998057886A1 Method for producing highly pure aqueous hydroxylamine solutions |
| 12/23/1998 | EP0885182A1 Process and system for the alkylation of aromatic compounds |
| 12/23/1998 | EP0810898A4 Vaporizer and liquid delivery system using same |
| 12/23/1998 | EP0779829B1 Process and device for desalinating sea water |
| 12/23/1998 | EP0662997B1 Method for stabilising crude oils at the outlet of a well, and device therefor |
| 12/23/1998 | CN1202841A Chemical separation and reaction apparatus |
| 12/23/1998 | CA2294275A1 Water evaporation apparatus |
| 12/22/1998 | US5852201 Process for the distillation of crude ester in the DMT/PTA process |
| 12/17/1998 | WO1998056742A1 Azeotropic mixture of perfluoroalkyl iodide and hydrogen fluoride, and method for isolating and purifying perfluoroalkyl iodides |
| 12/17/1998 | WO1998056479A1 Method and apparatus for reducing reabsorption of vapors and gases |
| 12/17/1998 | CA2293394A1 Method and apparatus for reducing reabsorption of vapors and gases |
| 12/16/1998 | EP0883437A1 Method and apparatus to improve vapor distribution |
| 12/16/1998 | EP0883436A1 Vapor distribution method and apparatus |
| 12/16/1998 | CN1202165A Process for distilling ethylene oxide |
| 12/15/1998 | US5849982 Recovery of styrene from pyrolysis gasoline by extractive distillation |
| 12/15/1998 | US5849971 Process for cracking tertiary butyl alcohol in a reaction distillation column |
| 12/15/1998 | US5849148 Distributor plate and evaporator |
| 12/10/1998 | WO1998055196A1 Downcomer to a plate column |
| 12/10/1998 | WO1998055195A1 Black water flash and vapor recovery process and apparatus |
| 12/09/1998 | EP0882481A1 Discharge pipe for a plate column |