Patents
Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025)
03/1994
03/30/1994EP0589230A1 An integrated thermosiphon heat exchanger apparatus
03/30/1994EP0588854A1 Apparatus and method for reclaiming waste oil.
03/30/1994EP0588851A1 Apparatus and method for reclaiming useful oil products from waste oil
03/30/1994CN2159819Y Suspending cone centrifugal molecular distiller
03/24/1994DE4231458A1 Refrigerant cooled condenser for laboratory rotary evaporator - with coolant introduced into spiral cooling element by capillary injection, for high vacuum distillation
03/23/1994EP0588733A1 Gas-liquid contactor of falling film type
03/23/1994EP0588594A2 Control system using an adaptive neural network for target and path optimization for a multivariable, nonlinear process
03/22/1994US5296630 Esterifying acetic acid with methanol in presence of acidic catalyst in distillation column
03/22/1994US5296104 Process for obtaining purified aqueous hydrogen peroxide solutions
03/22/1994US5296103 Stills and separation of liquids
03/22/1994CA2078745A1 Distillation tower and sidestream stripper therefor
03/17/1994DE4302030C1 Putting to use of waste water contg. alcohol@, esp. in breweries - in which alcohol@ content is increased in rectification column and water/alcohol@ mixt. is then used as fuel in thermal power unit.
03/16/1994EP0586780A1 Liquid distributor for a counter-current column
03/16/1994CN1023971C Liquid distributor assembly for packed tower
03/15/1994US5294916 Water treatment controller for an evaporative condenser
03/15/1994US5294305 Heating to dissolve oligomers; ion exchanging, distilling
03/15/1994US5294303 Method for removing dissolved immiscible organics from am aqueous medium at ambient temperatures
03/15/1994CA2106049A1 Control system using an adaptive neural network for target and path optimization for a multivariable, nonlinear process
03/10/1994DE4300890A1 Deodorisation and deacidification of salad oils, fats and ester(s) - by continuous countercurrent falling film vapour distn.
03/08/1994US5292429 Thermal distillation
03/08/1994US5291989 Catalyst system for distillation reactor
03/08/1994CA1327540C Apparatus for making distilled spirits from mash
03/03/1994WO1994006529A1 Liquid gasification apparatus
03/03/1994WO1994004333A1 Process for removing the solvent from a polymer solution
03/03/1994DE4301491C1 Recovery of waste synthetic resin lacquer - by mixing with acyl polyethylene glycol ester emulsifier, adding sulphuric acid and PVA soln., removing solvent with steam, etc.
03/02/1994EP0584926A1 Water assisted devolatilization
03/02/1994CN2157816Y Automatic-controlling protector for electric heat still
03/01/1994US5290527 From epoxidation catalysts, precipitation with ammonia, cooling to brittle solid
03/01/1994US5290403 Liquid evaporating apparatus
03/01/1994US5290402 Automatic cold/hot distilled water fountain
03/01/1994US5289688 Inter-column heat integration for multi-column distillation system
03/01/1994CA1327306C Structured column packing with liquid holdup
03/01/1994CA1327305C Downcomer-tray assembly
02/1994
02/23/1994EP0583914A2 Catalyst-downcomer-tray for chemical process tower
02/23/1994EP0583683A2 Distillative separation process in a discontinuous method of operation
02/23/1994EP0458789B1 Process and device for separating solvents and oils
02/16/1994EP0583082A1 Fluid assisted devolatization
02/16/1994CN1081935A Packing element
02/15/1994US5286468 Reduction of carbon dioxide to carbon monoxide; cooling, distillation, oxidation
02/15/1994US5286351 Water distilling method
02/15/1994US5286350 Water distiller
02/15/1994US5286349 Apparatus for reclaiming useful oil products from waste oil
02/15/1994CA2101461A1 Carrying out batchwise distillative separations
02/11/1994CA2101882A1 Catalyst-downcomer-tray for chemical process tower
02/09/1994EP0582538A2 Propylene carbonate recovery process
02/09/1994CN1023685C Energy-saving process for separation of light hy drocarbons
02/08/1994US5284992 Process and apparatus for the separation of p-xylene in C8 aromatic hydrocarbons with a simulated moving bed absorption and a crystallization
02/08/1994CA1326812C Gas/liquid contacting apparatus
02/08/1994CA1326811C Process and apparatus for controlling the composition of a mixture leaving an evaporator
02/03/1994WO1994002419A1 A water distillation system
02/03/1994WO1994002209A1 Process and device for cleaning pcb-contaminated electric appliances
02/01/1994US5283373 Etherification with skeletal olefin isomerization
02/01/1994US5282979 Desalination system having rechargeable syphon conduit
02/01/1994US5282929 Reducing molecular weight distribution of polyether glycols by short-path distillation
02/01/1994US5282927 Heat source is steam from water bath; evaporation
02/01/1994US5282365 Cryogenic air separation
02/01/1994CA1326642C Water distilling method and apparatus
01/1994
01/26/1994EP0508986B1 Process for purifying organically polluted waste water
01/26/1994CN1023593C Spiral tower
01/25/1994US5281723 Feeding propylene carbonate effluent to a separation means, separating water and volatiles, recovering, evaporating to separate propylene carbonate from high boiling materials
01/25/1994US5281479 Carbon fiber reinforced carbon, packing for distillation columns
01/25/1994US5281369 Supporting grate for packings in material exchange columns
01/25/1994US5281309 Portable water purification system
01/20/1994WO1994001710A1 Suspendable conduit bracket system
01/19/1994EP0579275A1 Removing hazardous contaminants from water
01/19/1994EP0579234A1 Packing element
01/18/1994CA1326203C Liquid evaporator
01/13/1994DE4217017C1 Replaceable floor clamp - has a holder on the layer surface to take an inserted leg of a spring clip
01/12/1994EP0577607A1 An active liquid distributor containing packed column.
01/11/1994US5277848 Method and apparatus for downcomer tray operation
01/11/1994US5277847 Method and apparatus for catalyst-downcomer-tray operation
01/11/1994CA1325997C Rectifier columns for vapour generators
01/11/1994CA1325996C Process for the separation of hf via azeotropic distillation
01/11/1994CA1325994C Process for the vigorous dehydration of substances, mixtures, primarily condensation reaction mixtures, by azeotropic distillation
01/06/1994WO1994000235A1 Catalytic distillation structure
01/06/1994CA2138651A1 Catalytic distillation structure
01/05/1994EP0576497A1 Method for refining of waste lubricating oils and an apparatus for employing the method
01/05/1994DE4221518A1 Emulsion waste processing appts. - has a mobile boiler with condenser and water collection tank in a mobile assembly to reduce vol of special waste for disposal
01/04/1994US5275790 Structure and method for catalytically reacting fluid streams in mass transfer apparatus
01/04/1994US5275702 Distillation method of separating organic solvents
01/04/1994US5275666 Evaporator pans evaporation of sap and perforated pipes for injection of pressurized air
12/1993
12/29/1993EP0576346A1 Method of dehydrating solvant from hydrocarbons dewaxing (operation) process
12/29/1993CN1079956A Recovery of carboxylate ester reaction products
12/28/1993US5273719 A liquid evaporator and a deodorizing device including a heater, catalyst, air blower and diffusion discharge pipe
12/28/1993US5273623 Process for concentrating urea solution under vacuum
12/28/1993US5273572 Process for removing an organic compound from water
12/23/1993WO1993025478A1 Process and apparatus for the production, particularly domestic production, of beverages
12/23/1993WO1993022650A3 Device for evaporating preferably liquid substances, in particular reagents, or for preparing or analyzing sampled materials
12/22/1993CN2149951Y Full-glass distillation device
12/22/1993CN2149950Y Short-range distiller for internal-heated composite metal wire netting casing
12/21/1993US5271808 Apparatus from waste oil for reclaiming a useful oil product
12/21/1993CA1325401C Process and apparatus for reclaiming waste gas treating chemical
12/15/1993EP0574266A1 Method and apparatus for dehydrogenation
12/15/1993EP0521087B1 Process for the treatment of an aqueous solution containing mainly nitric and hydrofluoric acids
12/15/1993EP0464045B1 Discontinuous process for conducting a heterogeneously catalysed reaction and installation for heterogeneously catalysed manufacture of products
12/15/1993CN1023072C Method for separation of oil from water and oil purification equipment
12/14/1993US5269976 Liquid-vapour contact columns
12/14/1993US5269886 Reconcentrating apparatus
12/14/1993US5269465 Liquid distributor tray for heat exchange equipment
12/09/1993WO1993024228A1 Stripper-reactor for volatile cobalt recovery