Patents
Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025)
03/2000
03/09/2000WO2000012212A1 Process and catalyst for making dialkyl carbonates
03/09/2000WO2000012190A1 Distillation device
03/09/2000DE19840747A1 Kontinuierliches Verfahren zur Herstellung von ungesättigten Ketonen A continuous process for preparing unsaturated ketones
03/09/2000DE19837276A1 Apparatus for distilling and cracking used oil comprises distillation and cracking chambers either built-in horizontally or in a slanting plane
03/08/2000EP0983988A1 Continuous process for the preparation of unsaturated ketones
03/08/2000EP0983109A1 Spent caustic (pre)treatment process
03/08/2000EP0751808B1 Column for counter-currently contacting gas and liquid
03/08/2000EP0666767B1 High purity benzene production using extractive distillation
03/08/2000CN2367366Y Radial side-guiding spray tower plate
03/08/2000CN1246806A Apparatus and method for tray valve attachment
03/08/2000CN1246803A Improved mass transfer device
03/08/2000CN1050066C Process for deodorising and stabilising biotechnologically products
03/07/2000US6034209 Method of recovering low-boiling substances from a polymer latex
03/07/2000US6033989 Device for and method of concentrating chemical substances for semiconductor fabrication
03/07/2000US6033678 Microclustered Water
03/07/2000US6033633 Boiling point reactor with heat removal
03/07/2000US6033530 Continuous distillation of thermolabile monomers
03/02/2000WO2000011550A1 Component mapper for use in connection with real-time optimization process
03/02/2000WO2000010922A1 Treatment of aqueous wastes
03/02/2000WO2000010696A1 Tray contactor with same-direction liquid flow
03/02/2000WO1999058449A3 Method for producing oil fractions
03/01/2000EP0981398A1 Vapor-liquid contact tray with two-stage downcomer
02/2000
02/29/2000US6030524 Refinery atmospheric pipestill with methanol stripping
02/29/2000US6030504 Control circuit for water distiller
02/23/2000EP0980909A1 Hydrocarbon conversion process and its application in the hydrogenation of benzene
02/23/2000CN2364947Y Antisludging column plate
02/23/2000CN2364946Y Solar-energy direct distilling apparatus with deflector plate
02/23/2000CN1245083A Process and dedicated equipment for concentrating solution of high-thermosensitive material
02/22/2000USRE36577 Air distillating column with cross-undulating lining
02/22/2000US6028215 Process for preparing esters of carboxylic acids
02/17/2000WO2000007684A1 Method for evaporating polymer solutions of thermoplastic polymers
02/17/2000DE19835744A1 Verfahren zum Eindampfen von Polymerlösungen thermoplastischer Polymere A method of evaporation of polymer solutions of thermoplastic polymers
02/16/2000EP0979801A1 Sea water desalination system by condensing air moisture
02/16/2000EP0979041A1 Essence recovery system
02/16/2000CN1049424C Process and apparatus for producing terephthalic acid
02/15/2000US6024842 For fractionating a liquid feed material in plug flow
02/15/2000US6024839 Inhibiting fouling of equipment for the purification of epichlorohydrin by treating the equipment with an antifoulant comprising hydroquinone
02/10/2000WO2000006540A1 Lactam dehydration method
02/10/2000CA2338159A1 Lactam dehydration method
02/09/2000EP0977619A1 Compositions and methods for inhibiting fouling of vinyl monomers
02/09/2000CN2362865Y Distillator
02/09/2000CN1049243C Process for removal of solvents from detergent pastes
02/09/2000CN1049156C A process and a device for seperating a solid residue from its solution in a stirred bed of material
02/08/2000US6023003 Stream is subjected to three evaporation cycles. each time the remaining liquid stream becomes more concentrated with glycol until the finished product is approximately ninety percent
02/03/2000WO2000005173A1 Method for distilling ammonia
02/03/2000WO2000004988A1 Vapor/liquid contacting cyclone with devices to prevent backmixing
02/03/2000DE19833941A1 Recovery of alpha-octene from mixed hydrocarbons produced by Fischer-Tropsch synthesis takes place in e.g. conventional columns in sequence, first under vacuum, then under elevated pressure
02/03/2000CA2338377A1 Vapor/liquid contacting cyclone with devices to prevent backmixing
02/02/2000EP0976850A2 Apparatus and method for recycling
02/02/2000EP0975404A1 Co-current contacting separation tray design and methods for using same
02/02/2000EP0730485B1 Process for the simplified separation of complex mixtures at least partially of organic origin
02/02/2000CN1243449A Distillation process with reduced fouling
02/02/2000CN1048910C Method for fine still separation of mixture sensitive to air and/or temp., and tower thereof
02/01/2000US6020494 Method of purifying quinaldine
02/01/2000US6019499 Method of conditioning hydrocarbon liquids and an apparatus for carrying out the method
02/01/2000CA2110522C Matter-conductive crown element for the packing of a matter-exchange column
01/2000
01/26/2000EP0974838A1 Device for continuous control of the composition of a mixture of components and system for separating constituents incorporating this analytic device
01/26/2000EP0836637A4 Process for improving color and color stability of oleic acid
01/26/2000CN2360149Y Catalytic distillation assembly
01/26/2000CN1242714A Fractionation trays
01/26/2000CN1242249A Shell and tube type catalytic distillation equipment
01/26/2000CN1048645C Column tray with rectangular hanging downcomer and guiding flow plate
01/26/2000CN1048644C Composite filler column tray with gas phase space when used
01/26/2000CN1048643C Column for counter-currently contacting gas and liquid
01/26/2000CN1048642C Multiparameter on-line optimization control method for gas dephlegmation tower
01/20/2000DE19835945C1 Installation for chemical and/or electrolytic coating of aluminum surfaces
01/19/2000EP0972771A1 Epsilon-caprolactone, process for producing the same, polycaprolactone obtained therefrom, and process for producing the polycaprolactone
01/19/2000EP0972551A2 Liquid distributor
01/19/2000EP0971777A1 METHOD FOR RECOVERING ALKANOLS FROM AQUEOUS HBr SOLUTIONS
01/19/2000EP0971776A1 Process and device for recovering and treating of aqueous solutions
01/19/2000CN2358962Y Tower tray formed with angle piece radial arranged on edge up and down
01/19/2000CN2358961Y Pulse grille with angle-piece radial arranged on edge left and right
01/19/2000CN2358960Y Non-ferrous metal vacuum induction continuous fractional distillation furnace
01/19/2000CN1048414C Mixed box tower plate
01/18/2000US6015968 Microwave distillation apparatus, and vessel-biasing assembly
01/13/2000DE19830850A1 Drive for a rotary evaporator useful in preparative chemical laboratories
01/13/2000DE19830163A1 Internal condenser for a distillation column
01/12/2000EP0970018A1 Facility for desalinating or purifying sea water or brackish water by means of solar energy
01/12/2000CN2357793Y Batch fractional column for separation process in chemical industry
01/12/2000CN2357792Y Oval float valve
01/12/2000CN1240785A Process and apparatus for producing aromatic carboxylic acid
01/12/2000CN1240673A Catalytic distillation process
01/11/2000US6013821 Reactively distilling solvent waste stream with sulfuric acid to form silylated sulfuric acid ester and separating ester form waste stream
01/11/2000CA2195181C Heat exchanger
01/05/2000EP0968959A1 Process for the production of carbon monoxide
01/05/2000EP0968393A1 Device for modifying the temperature of a fluid
01/05/2000EP0766596B1 Two-phase distributor system for downflow reactors
01/04/2000US6010976 Catalyst for making dialkyl carbonates
01/04/2000US6010599 Compact vacuum distillation device
01/04/2000CA2127824C Apparatus and method of treating process condensate
12/1999
12/30/1999DE19828581A1 Side-loading washing machine for industrial and textile materials
12/30/1999DE19828580A1 Washing machine for surface treatment of industrial parts
12/30/1999DE19827852A1 Concentrating viscous polymer from monomer-solvent mixture to better than one percent
12/29/1999WO1999067003A1 Process for the treatment of waste water
12/29/1999WO1999067002A1 Method for isolating polymers from solutions
12/29/1999CN2355766Y Tray of column with multiple step-down liquid pipes
12/29/1999CN2355765Y Non hydrosolidifying reducing fractional tower
12/29/1999CN1239901A Method for distilling mixture of substances and device for realising the same
12/29/1999CA2335577A1 Method for isolating polymers from solutions
12/28/1999US6009238 Water distiller with improved automatic shutoff feature