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)
09/1998
09/18/1998CA2217673A1 Water distiller with improved solids-removing baffle device
09/17/1998WO1998040313A1 Facility for desalinating or purifying sea water or brackish water by means of solar energy
09/17/1998DE19710745A1 Rotary evaporator
09/17/1998DE19706599C1 Lösemittelverdampfer Solvent evaporator
09/17/1998CA2282507A1 Plant for desalination or purification of sea or brackish water by means of solar energy
09/16/1998EP0864535A2 Process and apparatus for evaporation of saline solutions
09/16/1998EP0804385B1 Apparatus for the purification of water contaminated with oil
09/15/1998US5808159 Water pollution control
09/11/1998WO1998039078A1 Method and apparatus utilizing hydrocarbon pollutants
09/11/1998WO1998039077A1 Downcomer for chemical process tower
09/11/1998WO1998039076A1 Process and device for recovering and treating of aqueous solutions
09/11/1998CA2278756A1 Downcomer for chemical process tower
09/10/1998DE19728835C1 Purification of quinaldine from coal tar fraction
09/09/1998EP0831978A4 On-site ammonia purification for semiconductor manufacture
09/09/1998EP0765182B1 Process for deodorising and stabilising biotechnologically extracted valuable substances and their aqueous preparations
09/09/1998CN1192435A Method for increasing capacity of existing urea process
09/08/1998US5804040 Purification process for silane compound
09/08/1998US5804039 Method for removing residual monomers
09/08/1998US5803938 Liquid vaporizing apparatus
09/03/1998WO1998038464A1 Device for modifying the temperature of a fluid
09/03/1998WO1998037937A1 Spent caustic (pre)treatment process
09/03/1998DE19708384A1 Distillation plant for waste oil and oil mixed with other waste or scrap materials
09/02/1998CN1192260A Ocean thermal energy conversion (Otec) system
09/01/1998US5800791 Column baffles for suspensions with precipitating substances
09/01/1998US5799877 Fluid distribution across a particulate bed
08/1998
08/27/1998WO1998036814A1 Solvent evaporator
08/26/1998EP0859940A1 Rotatable heat transfer apparatus
08/26/1998EP0859653A2 Method of chemically reacting substances in a reaction column
08/26/1998EP0835168A4 On-site manufacture of ultra-high-purity nitric acid for semiconductor processing
08/26/1998CN2288756Y Liquid flowing along radius plate tower disc
08/26/1998CN1191495A Liquid medium extraction purification method
08/26/1998CN1039574C Multi-cell heating system
08/25/1998US5798086 Intensified locally cocurrent tray contactors
08/20/1998WO1998035737A1 Staged optimal externally-controlled systems
08/20/1998WO1998035736A1 Plant for the distillation of a liquid product
08/20/1998DE19706445A1 Purification of solvent especially containing heat-sensitive material
08/19/1998EP0660748B1 High capacity tray for gas-liquid contact apparatus
08/19/1998CN2287992Y Gas axial-flow type rotary packed bed gas-liquid heat transfer mass transfer device
08/18/1998US5795462 Water pollution control
08/18/1998CA2033250C Octane improvement process
08/13/1998WO1998034707A1 Method of phosphoric acid concentration and fertilizer production
08/12/1998EP0857093A1 Chemical separation and reaction apparatus
08/12/1998CN1190356A Cloth or cloth-like packing which is subject to low pressure losses and has ordered structure for use in material-exchange columns and rectification method using such packing
08/12/1998CN1190354A Process for extracting pure substances from mixtures of high-boiling air and/or temperature-sensitive substances requiring high separative power by rectification in fine vacuum and columns ......
08/11/1998US5792891 Integrated process for the production of tame
08/11/1998US5792428 Apparatus for conducting exothermic reactions
08/06/1998WO1998033571A1 Improved mass transfer device
08/06/1998WO1998033570A1 Dispersion device for a dispenser for sprinkling liquid onto substance and/or heat exchange systems
08/06/1998CA2286172A1 Dispersion device for a dispenser for sprinkling liquid onto substance and/or heat exchange systems
08/05/1998EP0856715A2 Purification of electronic specialty gases by vapor phase transfilling
08/05/1998EP0856343A1 Purifier and purifying method for polymerizable organic compounds
08/05/1998CN1189787A Point-of-use ammonia purifation for electronic component manufacture
08/05/1998CN1189485A Purifier and purifying method for polymerizable organic compounds
08/05/1998CN1039389C Disc type double-acting float valve
08/04/1998US5788895 Mass transfer in plate columns and apparatus for this purpose
08/04/1998US5788894 High capacity vapor-liquid contact tray
08/04/1998US5788835 Water purifier having degassor and membrane distillation elements
08/04/1998US5788745 Process and apparatus for vapor recovery
08/03/1998CA2227715A1 Purification of electronic specialty gases by vapor phase transfilling
07/1998
07/30/1998WO1998032511A1 Fractionation trays
07/30/1998WO1998032510A2 An apparatus for catalytic distillation
07/30/1998DE19702266A1 Degassing apparatus for all non=Newtonian fluid(s), especially plastic melt
07/30/1998CA2277214A1 Fractionation trays
07/29/1998EP0855410A1 Devolatilizer tray array
07/28/1998US5785902 Liquid vaporizing apparatus
07/28/1998US5785900 Fluid distributor for heat and material exchange column and process for producing the same
07/28/1998US5785819 Distillation column for separating a liquid mixture into a plurality of pure fractions
07/28/1998US5785808 Heat exchanger with pressure controlling restricter
07/24/1998CA2223816A1 Devolatilizer tray array
07/23/1998WO1998031844A2 Flash evaporator
07/23/1998WO1998031445A1 Distillation process with reduced fouling
07/23/1998WO1998022193A3 Process and apparatus for improving the efficiency of an evaporation process
07/22/1998EP0854129A1 Process for the continuous separation by distillation of liquid mixtures containing (meth)acrylic acid as the main cut
07/22/1998EP0758266B1 Vertical staged polycondensation reactor containing split flow reactor trays
07/22/1998CN2286425Y Multi-function extraction and distillation equipment
07/22/1998CN2286424Y Distillation equipment
07/21/1998US5783119 Liquid distributor for columns
07/21/1998US5783047 Heat integrated distillation column
07/16/1998WO1998030523A1 Process and apparatus for the production and recovery of p-xylene
07/16/1998WO1998030302A1 System and method of waste water reduction and product recovery
07/16/1998WO1998030301A1 Improved fractionator system for delayed coking process
07/16/1998CA2278163A1 System and method of waste water reduction and product recovery
07/16/1998CA2275868A1 Process and apparatus for the production and recovery of p-xylene
07/15/1998CN1187377A Float valve tray with wings
07/14/1998US5779993 Liquid-phase catalyst-assembly for chemical process tower
07/14/1998US5779883 Catalytic hydrogenation of petroleum streams
07/14/1998US5779861 Method for treating process condensate
07/08/1998CN1187152A In site production of super high pure nitric acid for semiconductor working
07/08/1998CN1186935A Pure phase-changing apyretic frigeration technological process and the apparatus thereof
07/08/1998CN1186709A Distillation plant
07/07/1998US5777187 Two-step process for alkylation of benzene to form linear alkylbenzenes
07/07/1998US5776320 Process and apparatus for reactive distillation with a particular distribution of liquid and vapour phases
07/07/1998US5776319 Continuous linear-torroidal extraction method
07/07/1998US5776316 Liquid redistribution system
07/02/1998WO1998028056A1 Fixed valve
07/01/1998CN1186451A Horizontal tray and column for contacting gas and liquid
06/1998
06/30/1998US5773670 Hydrogenation of unsaturated cyclic compounds
06/30/1998US5772909 Process for separation of vanillin from other chemicals by means of azeotropic distillation with dibenzyl ether and mixtures of vanillin and dibenzyl ether used in such process
06/30/1998US5772895 Process control; alternating temperature of heat exchanger in response to viscosity signal
06/30/1998US5772854 Acetone buffer
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