Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025)
08/1990
08/16/1990EP0382315A2 Vacuum distillation device
08/16/1990EP0382314A2 Vacuum distillation process
08/16/1990EP0382313A2 Vacuum distillation process
08/15/1990CN1044596A Gas liquid contacting tray
08/14/1990US4947983 Distilling apparatus
08/08/1990EP0381388A2 Gas-Liquid contacting tray
08/08/1990EP0294663B1 Spray-died emulsion polymer, process for its preparation and the use of such a prepared composition
08/07/1990US4946558 Water distilling apparatus
08/02/1990DE3902275A1 Liquid distributor
08/01/1990EP0380001A1 Method for the separation by distillation of small quantities of middle boiling fractions from a liquid-mixture
07/1990
07/31/1990US4945173 Distillation in presence of diethyl ethoxysuccinate
07/31/1990US4944847 Method for inhibiting epichlorohydrin fouling
07/31/1990US4944846 Process for the separation of HF via Azeotropic distillation
07/31/1990CA1272146A1 Production of low-ethanol beverages by membrane extraction
07/24/1990US4943354 Phase separation within the distillation column
07/24/1990US4943353 Control for modular water distiller
07/18/1990WO1990008127A1 Process and apparatus
07/18/1990EP0378408A2 Double-deck distributor
07/18/1990CA2045548A1 Process and apparatus
07/17/1990CA1271699A1 Method and apparatus for uniformly distributing solids-containing liquid
07/12/1990WO1990007367A1 Method and apparatus for the purification of a two-component liquid mixture by distillation
07/11/1990EP0376971A1 Process and installation for recovering reusable gas from waste through pyrolysis.
07/10/1990US4940134 Treating used photographic solutions, evaporation, condensation
07/04/1990CN1043495A Combined flow sequence of constant boiling and rectification by adding salt and extracting for purilying ethyl acetate
07/03/1990US4938868 Vaporization, spiral condenser
07/03/1990US4938846 Evaporation of water
06/1990
06/27/1990EP0374443A2 Device for carrying a packing and for collecting or distibuting a liquid in a mass or heat exchange transfer vessel
06/27/1990EP0374277A1 Method for removing amine from oil
06/26/1990US4936955 Hydrofluoric acid reprocessing for semiconductor standards
06/26/1990US4936953 Cold trap vapor control device
06/26/1990CA1270856A1 Process for decolorizing polyethylene polyamines
06/26/1990CA1270751A1 Structured tower packing
06/21/1990DE3940118A1 Slurry distribution into cells around cylinder perimeter - by arm rotated in horizontal plane above cells
06/21/1990DE3842389A1 Process for separating halogenated hydrocarbons from a mixture
06/20/1990CN1043095A Sieve plate for effecting gas-liquid contact and structure containing sieve plate
06/19/1990US4935577 Alkylation; oligomerization
06/19/1990US4935101 Process for the recovery of a water-insoluble epoxy alcohol
06/19/1990US4934433 Devolatilization
06/19/1990CA1270457A1 Distillation process
06/14/1990CA2004746A1 Slurry distribution apparatus
06/13/1990EP0372900A2 Process for drying hydrogen fluoride - carboxylic acid mixtures
06/13/1990EP0372737A1 Sieve plate for effecting gas-liquid contact and structure containing sieve plate
06/13/1990DE3841642A1 Nozzle grating for gas scrubbers, absorbers and the like and column internal composed thereof
06/12/1990US4933198 Production of low-ethanol beverage by membrane extraction
06/12/1990US4933047 Chimney tray hat
06/06/1990CN1042664A New catalystic distillation equipment and catalyst system
06/06/1990CA2003924A1 Process for drying hydrogen fluoride-carboxylic acid mixtures
06/02/1990CA2003484A1 Sieve plate for effecting gas-liquid contact and structure containing sieve plate
05/1990
05/31/1990WO1990005571A1 Dry cleaning solvent filtration and recovery system
05/31/1990DE3840279A1 Liquid distributor for an exchange column
05/30/1990EP0216875B1 Device for the continuous extraction of ethanol from sweetened basic materials
05/29/1990US4929398 Tower packing cartridge
05/29/1990US4929312 Vacuum, evaporation, condensation
05/29/1990US4929311 Apparatus for deodorizing an organic liquid
05/29/1990US4929310 Apparatus for deodorizing organic liquids
05/23/1990EP0369708A1 Devolatilization
05/23/1990DE3839017A1 Process for separating off by distillation undesirable constituents of natural fats/oils and derivatives thereof
05/23/1990CN1042311A Liquid distributor assembly for packed tower
05/16/1990EP0367817A1 Heat and material exchange device.
05/15/1990US4925989 MTBE preparation from isobutylene/TBA and methanol in presence of an acid resin catalyst
05/15/1990US4925558 Thin film short path distillation; heating
05/15/1990US4925535 Process for the production of an aromate concentrate suitable for use as blending component for gasification fuel
05/15/1990US4925533 Separation of vinyl acetate from ethyl acetate by extractive distillation with acids or acid amides
05/09/1990EP0367525A1 Liquid distributor assembly for packed tower
05/09/1990EP0267488B1 Process for the preparation of monomeric alpha-cyanoacrylates
05/09/1990CN1041953A Devolatilization
05/09/1990CN1007876B Contacting gas and liquid
05/08/1990US4923492 Closed system refrigeration using a turboexpander
05/02/1990EP0366601A1 Rotary evaporator
05/02/1990EP0366019A1 Partial vaporizer
05/01/1990US4921581 Extractive distillation of hydrocarbons employing solvent mixture
05/01/1990US4921580 Solar water distiller
04/1990
04/26/1990DE3838932C1 Process and plant for the physical refining of edible oils, fats and esters
04/25/1990EP0364659A1 Method for rectification and apparatus therefor
04/24/1990US4919794 Process for separating hydrocarbons
04/24/1990US4919692 Process for removing solvents and other contaminants from an inlet solvent laden air path
04/24/1990US4919257 Separation of gas from glycol
04/19/1990WO1990003945A1 Removing hazardous contaminants from water
04/18/1990EP0364117A2 Method for mixing vapour in a countercurrent column
04/18/1990EP0363995A2 Method for recovery of solvent used in production of polyarylene sulfide
04/18/1990EP0363838A2 Method and apparatus for obtaining pure water and products dissolved in water
04/18/1990EP0363371A1 Liquid evaporating apparatus.
04/17/1990US4918255 Heterogeneous isoparaffin/olefin alkylation with isomerization
04/17/1990US4918244 One step, continuous processing; etherification of methanol and tert-butanol using solid acid catalyst
04/17/1990US4917769 Distillation apparatus for removal of volatile acids from aqueous solutions
04/14/1990CA2000037A1 Removing hazardous contaminants from water
04/11/1990EP0362807A2 Plant for the production of alkylated resins
04/11/1990CN2055736U Bubble-cap
04/10/1990US4915793 Water treatment apparatus
04/10/1990US4915792 Distillation, heat exchange, efficiency
04/08/1990CA2000230A1 Process and apparatus for purifying water and recovering substances dissolved in water
04/04/1990EP0361839A2 Dehydration process using azeotropic distillation
04/04/1990EP0361776A1 Liquid-vapour contact
04/04/1990EP0361112A1 Column for the distillation of feeds having a two-phase tendency at the bottom
04/04/1990EP0360890A1 Distillation system and process
04/03/1990US4913865 Heating, evaporation, and condensation under vacuum
04/03/1990US4913771 Method for dewatering sludge or slurry
03/1990
03/28/1990EP0360041A2 Method and apparatus for optimizing the operation of a rectification column provided with a lateral boiler
03/22/1990WO1990002603A1 Device for carrying out catalytic reactions
03/22/1990DE3831221A1 Vacuum distillation unit with an electrically controlled bypass between concentrate pump pressure line and vacuum distillation vessel
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