Patents
Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025)
11/1984
11/13/1984US4482433 Of n-substituted aminobbnzaldehydes by stripping and evaporation with n-substituted aniline
11/13/1984US4482432 Apparatus for solid/liquid separation by vaporization and condensation
11/13/1984US4482431 Distillation apparatus with a liquid-vapor separating device having three chambers
11/07/1984EP0123815A2 Packed column having pressure-absorbing mechanism
11/06/1984US4480393 Vapor recovery method and apparatus
11/06/1984CA1177438A1 Process for extractive distillation
10/1984
10/31/1984EP0123634A1 Process for separating zirconium tetrachloride from hafnium tetrachloride by extractive distillation for the removal of the aluminium introduced by the solvent
10/31/1984EP0123390A2 Rotary evaporator
10/30/1984US4479909 Distributor stage for liquid-contacting columns
10/30/1984US4479851 Depressurization, distillation
10/30/1984CA1177009A1 Reclaiming used lubricating oil
10/25/1984WO1984004048A1 A separation column for mounting upon a movable support
10/24/1984EP0122367A2 Distillation column
10/23/1984CA1176653A1 Deoiling of aqueous solutions of sodium lauryl sulfate
10/17/1984EP0122166A1 Process and device for the production of high purity gas by the vaporisation of a cryogenic liquid
10/10/1984EP0121445A1 Multi-channel body
10/09/1984US4476069 Liquid distributing apparatus for a liquid-vapor contact column
10/09/1984CA1175773A1 Reboiling process through secondary compression of vapors
10/03/1984EP0120508A2 Apparatus for fractional distillation under vacuum
10/02/1984US4475005 Styrene-divinylbenzene resin
10/02/1984US4474142 Method and apparatus for flash evaporation of liquids
09/1984
09/26/1984EP0119833A2 Preparation of carboxylic acid esters of alkylene glycol monoalkyl ethers
09/26/1984EP0119643A2 Liquid distributing apparatus and method for a liquid-vapor contact column
09/26/1984EP0119639A2 Process and apparatus for fractional distillation under vacuum
09/25/1984US4473444 Extractive distillation of alcohol-ester mixtures
09/25/1984US4473443 Controlling gas flow based on concentration
09/25/1984US4473442 Separation of acid alkylation catalysts from oil by controlled heat exchanging
09/25/1984US4472948 Heat pump installation operating from a cold source constituted by a turbid or corrosive solution
09/19/1984EP0118760A2 Device for the separation of solutions by pervaporation
09/19/1984EP0118475A1 Process for recovery of amine from spent acid stripping liquor
09/19/1984EP0118428A1 An improved method and apparatus for recycling energy in counterflow heat exchange and distillation.
09/18/1984US4472558 Process for carrying out reactions caused by the transport of substances
09/18/1984US4472325 Liquid distributor apparatus for a vapor-liquid contact column
09/18/1984US4472246 Process for recovery of amine from spent acid stripping liquor
09/18/1984US4471619 Fractionation process with power generation by depressurizing the overhead vapor stream
09/18/1984CA1174634A1 Extractive distilling with reworking of residue
09/12/1984EP0118308A1 Heat treatment of liquids
09/12/1984EP0118236A1 Evaporator
09/12/1984EP0118029A1 Gravimetric liquid distribution device for a mass and heat exchange column
09/12/1984EP0117949A1 Packing for packed towers inter-fluid contact
09/11/1984US4471154 Staged, fluidized-bed distillation-reactor and a process for using such reactor
09/11/1984US4470881 Using a higher boiling solvent which affects volatility differential and does not form an azeotrope
09/11/1984US4470880 Water treatment, vacuum evaporation, condensation
09/11/1984US4470879 Fractionator control in an alkylation process
09/04/1984US4469558 Apparatus for distilling vinylaromatic compounds
09/04/1984CA1173781A1 Heat pump fractionation process
09/04/1984CA1173741A1 Separate quench and evaporative cooling of compressor discharge stream
09/04/1984CA1173633A1 Mass transfer apparatus and process
08/1984
08/30/1984WO1984003227A1 Distillation apparatus
08/29/1984EP0117052A1 Distillative separation employing bottom additives
08/28/1984CA1173400A1 Hydrous alcohol distillation method and apparatus
08/21/1984CA1172989A1 Multiple effect distillation method and apparatus
08/14/1984US4465853 Method for isomerizing diacetoxybutenes
08/14/1984US4465559 Atomization/distillation system
08/14/1984CA1172596A1 Heat input control of extractive distillation column
08/08/1984EP0115262A2 Water extractive distillation of olefinically unsaturated nitriles
08/08/1984EP0114925A1 Process for making anhydrous alkanesulfonic acids
08/07/1984US4464228 Stripping volatile contaminants; methanol
08/07/1984US4464227 Methods and apparatus for distilling a contaminated solvent
08/07/1984US4463575 Vapor generating and recovery apparatus including a refrigerant system with refrigerant heat removal means
08/07/1984CA1172201A1 Enhanced distillation of cyclohexanol from phenol with additional cyclohexanone feed
07/1984
07/31/1984US4462814 Distillative separations of gas mixtures containing methane, carbon dioxide and other components
07/31/1984CA1171813A1 Method and apparatus for high volume fractional distillation of liquids
07/31/1984CA1171730A1 Process for extracting, concentrating and purifying natural aromas of vegetable origin and products thus prepared
07/31/1984CA1171664A1 Process for separation of zirconium- and hafnium tetrachlorides from a mixture comprising such chlorides and apparatus therefor
07/24/1984US4461675 Energy efficient process for vaporizing a liquid and condensing the vapors thereof
07/19/1984WO1984002767A1 Distillative separation employing bottom additives
07/18/1984EP0113447A2 Process for the fractional separation of protein mixtures with membranes
07/17/1984US4460396 Method for producing purified ethylene through thermo-coupled distillation and ethylene-producing apparatus using the said method
07/17/1984US4459831 Apparatus for preventing a contamination of the ambient air during an emptying and cleaning of the distillation vessel of dry cleaning apparatus
07/17/1984CA1171022A1 Solvent recovery process
07/17/1984CA1170998A1 Thermal circulation gas treater
07/11/1984EP0112978A1 Liquid distributor for a mass and heat exchange column
07/10/1984US4459179 Polyol
07/10/1984US4459178 Separation of isopropyl ether from methyl ethyl ketone by extractive distillation
07/10/1984CA1170612A1 Process for the rectification of binary liquid mixtures
07/10/1984CA1170594A1 Process for the recovery of a concentrated stillage
07/10/1984CA1170564A1 Vapor-liquid contacting apparatus
07/03/1984US4457807 Process for the purification of ε-caprolactam
07/03/1984US4457806 2,6-dinitro-4-ethylphenol
07/03/1984US4457805 Solvent recovery apparatus and method
07/03/1984CA1170335A1 Nonlinear control of liquid level
06/1984
06/27/1984EP0111941A2 Tray for distillation and/or absorption columns
06/26/1984US4456535 By hydrolysis and desorption; flowing countercurrent to a heating and stripping gas
06/19/1984US4455339 Packing for an exchange column
06/19/1984US4455198 Cyclic alcohol or ketone
06/13/1984EP0110760A1 Apparatus for cleaning and decontaminating clothes, in particular clothes contaminated by radioactive particles
06/13/1984EP0110583A1 Apparatus for separating a low viscosity material from a high viscosity material
06/13/1984EP0110016A2 Process for withdrawing a vaporous bottom product from a low-temperature rectification column at less than 1 mole per hour
06/13/1984EP0078268A4 Device for determining the efficiency of plates of distillation and/or absorption columns.
06/05/1984CA1168571A1 Tray device for collecting and distributing liquid for a counter-current column
05/1984
05/30/1984EP0109486A2 Recovery of components of a binary azeotrope
05/29/1984CA1168149A1 Packing material and apparatus
05/22/1984US4450047 Process for recovering anhydrous alkanesulfonic acids by reduced pressure, falling film evaporation
05/15/1984US4448644 Method of producing ethanol-water azeotrope from crude ethanol
05/08/1984US4447535 Process for the recovery of a concentrated stillage
05/08/1984US4447318 Extractive distillation method
05/08/1984CA1166953A1 Device for distributing a liquid in thin film form in vertical heat-exchangers
05/02/1984EP0107408A2 Process for producing ethanol
05/02/1984EP0107322A2 Water stills