Patents
Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025)
09/1993
09/14/1993US5244544 Process for the separation of multicomponent systems containing intermediate boiling substances in separating columns with side discharge
09/14/1993US5243836 Sealing device for a rotary evaporator
09/08/1993EP0559511A1 Chain of containers for solid granular material, and manufacture and application thereof
09/08/1993EP0559259A1 Method for transforming a liquid flow into a gas flow, and device for implementing the method
09/08/1993EP0559043A1 Method for heat exchanger control
09/07/1993US5243115 Acid catalyst, distillation
09/07/1993US5243102 Etherification of C5 -plus olefins by sequential catalytic distillation
09/07/1993US5242628 Distillation tray/downcomer
09/07/1993US5242605 Method and apparatus for removing water from lubricants, coolants and the like
09/07/1993US5242548 Vacuum distillation apparatus
09/02/1993WO1993016780A1 Process and device for purifying waters containing methanol and possibly polluted by hydrocarbons
09/02/1993WO1993016779A1 Process and device for the removal of the dissolved and/or emulsified hydrocarbons contained in waste water by steam stripping
09/02/1993DE4211931C1 Precisely adjustable liq. flow divider - for partial liq. recycle to countercurrent column
09/01/1993EP0557749A1 Device for a dealcoholisation apparatus
09/01/1993CN1075662A Multistage suspension reaction fractionating tower
08/1993
08/31/1993US5240652 Liquid distributor for a vapor-liquid contacting column
08/31/1993US5240617 Phase-separation equipment and method for thermally separating an emulsion, in particular a water-oil emulsion
08/31/1993US5240568 Removal of acetophenone from phenol purification residues
08/31/1993US5240566 Distillation, adding sulfuric acid and water
08/31/1993US5240560 Wastewater evaporator system
08/25/1993EP0556195A1 Powder pipette and apparatus for handling such a pipette.
08/25/1993CN1021885C Repeatedly rectifing method for multiple unit thermal sensitive materials
08/24/1993US5238578 Combining liquid containing solvent and nonvolatile impurities with vapor to produce precipitaed sludge
08/24/1993US5238540 Heat exchange purification with a selected solvent
08/24/1993US5237823 Cryogenic air separation using random packing
08/24/1993CA2090066A1 Apparatus for a dealcoholizing plant
08/19/1993WO1993016168A1 Procedure and apparatus for producing whisky
08/19/1993DE4204600A1 Solids wet milling for prodn. of ceramics and recording tapes - by sepg. liq. milling medium from milled prod. by evapn. and mechanical vapour compressing, heat recovery and drying
08/19/1993DE4204172A1 Process to treat flow of warm fluid e.g. in distillation - reduces cost by lowering complexity of control and instrumentation equipment
08/19/1993CA2130097A1 Procedure and apparatus for producing whisky
08/18/1993EP0555714A2 Regulation of concentrations for thermal separation
08/18/1993EP0555326A1 Method and apparatus for monochannel simultaneous heat and mass transfer
08/17/1993US5236663 Reaction-distillation apparatus and its use
08/17/1993US5236560 Solventless dimeric cyclic ester distillation process
08/17/1993US5236558 Method to recycle spent ethylene glycol
08/17/1993US5236555 Apparatus for concentration of liquids
08/17/1993CA1321399C Process for production of alkyl nitrite
08/13/1993WO1993015816A1 Improved exhaust vapour disposal process during overheated steam drying
08/13/1993CA2130005A1 A process for the improved removal of vapors in drying with superheated steam
08/10/1993US5235112 Stripper-reactor for volatile cobalt recovery
08/10/1993US5235102 Catalytic distillation using rigid, cellular monoliths as catalyst-packing material
08/10/1993US5234553 Process for obtaining a pure hydrocarbon from a sump product of an extractive distillation
08/10/1993CA1321161C Reboiler
08/04/1993EP0383805B1 A low pressure distillation apparatus
08/04/1993EP0303637B1 Lifting device for laboratory apparatus with stand profile and base console, and laboratory heating bath, in particular for rotary evaporators
08/04/1993CN1074836A Steam distillation using jet pump
08/03/1993US5232556 Water desalination apparatus
08/03/1993US5232476 Solvent recovery and reclamation system
08/03/1993US5232085 Distillation system with a hydrophobic porous membrane
07/1993
07/27/1993US5231234 Acid ion exchange resin
07/27/1993US5230839 Fractionator feed section
07/27/1993US5230773 Process for the recovery of heat and chemicals from spent liquor
07/27/1993US5230217 Inter-column heat integration for multi-column distillation system
07/22/1993WO1993013843A1 Process for removing hydrocarbons from polymer slurries
07/22/1993CA2127785A1 Process for removing hydrocarbons from polymer slurries
07/20/1993US5228987 Method and apparatus for clarifying liquids
07/20/1993CA1320431C Distillation tray
07/15/1993DE4200270A1 Reconditioning used oil with min. use of energy - where distillate is continuously drawn off into separate condensn. chamber and hot flue gases are circulated to heat whole distn. chamber
07/14/1993CN1021546C Rotary bed super gravity field installation of turning lathe with extracting device
07/13/1993US5227520 Distillation, iodide promoter, rhodium catalyst
07/13/1993US5227027 Liquid refrigerant accumulation, expansion, vaporization, compression, condensation, returning; feed water supplying, preheating, conveying in water evaporator, heating, blow down purification, condensation in water condenser
07/08/1993WO1993012854A1 Evaporative concentration of clay slurries
07/08/1993CA2126760A1 Evaporative concentration of clay slurries
07/06/1993US5225159 Deodorization of sewage sludge-derived oils
07/06/1993US5225072 Extractive distillation
07/06/1993US5225048 Monitoring, distillation and heat treatment
07/06/1993US5224351 Stacks of pairs of cross-undulating lining; reduced height column
06/1993
06/30/1993EP0548926A1 Apparatus for vaporizing liquid raw material and apparatus for forming thin film
06/30/1993CN1073612A Orbital tube evaporator with improved heat transfer
06/29/1993US5223183 Baffled downcomer fractionation tray
06/29/1993US5223101 Vacuum distillation to remove discoloring impurities, then second vacuum distillation removes turbidity-causing impurities
06/29/1993US5223088 Apparatus for producing concentrated aqueous slurries and spray dried particulate products
06/24/1993WO1993013189A1 Method of regenerating used lubricants
06/24/1993DE4142829A1 Verfahren zur reinigung von gebrauchten schmieroelen Method for cleaning of used lubricating oils
06/24/1993CA2104578A1 Method of regenerating used lubricants
06/23/1993EP0547939A1 Reactive distillation process and apparatus for carrying out said process
06/23/1993EP0547392A1 Concentrator/extractor apparatus having a hydrophobic membrane
06/23/1993CN1021294C Rotary liquid-feeding rotating bed
06/22/1993US5221441 Controlling liquid level in catalyst bed
06/22/1993US5220936 Vapor containment apparatus
06/19/1993CA2083527A1 Concentrator/extractor apparatus having a hydrophobic membrane
06/17/1993CA2085564A1 Reactive distillation process and apparatus for the implementation thereof
06/16/1993CN2136064Y Multifunctional flash vaporizer
06/16/1993CN1073152A Process and equipment for hydrolysis of residual urea in processing water of synthesis plant
06/15/1993US5218825 Removing a stream stripped of impurities and reintroducing it to a second distillation column for fractionation
06/14/1993CA2084440A1 Deodorization of sewage sludge-derived oils
06/10/1993WO1993010876A1 Method and apparatus for measuring reflux flow
06/10/1993WO1993010875A1 Recovery of substantially pure anhydrous hydrogen fluoride (hf) from mixtures comprising acyl fluorides or water
06/10/1993CA2125139A1 Method and apparatus for measuring reflux flow
06/09/1993EP0545564A1 Glycol dehydration apparatus for natural gas
06/09/1993EP0545253A1 Automatic device for cleaning the distiller in dry-cleaning machines
06/09/1993EP0544768A1 An apparatus and a method for treating emulsified liquids.
06/09/1993CN1072922A Process and device for separation of para-xylene from octa-arene by adsorption and crystallization with analogue movable bed
06/08/1993US5217582 Process for the isolation of alkyl glyoxylate
06/08/1993US5217580 Water distiller
06/08/1993US5217579 Distillation system for treating waste organic solvent
06/08/1993US5217572 Centrifugal evaporator-concentrator for concentrating specimens by evaporation of the solvent
06/02/1993EP0270656B1 Vapour deposition of monomer fluids
06/01/1993US5215902 Fermentation, solvent extraction, extractive distillation, vacuum stripping
06/01/1993US5215725 Aromatic alkylation process