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)
06/1998
06/30/1998US5772852 Distilling by heating to form an azeotrope and recovering hydrochloric acid
06/30/1998US5772851 Elimination of volatile residues from polyacrylate melts
06/30/1998US5772843 Tank covered by lightweight lid; removal water from hazardous wastes
06/30/1998US5771712 Gas stream is cooled, expanded, condensated and separated
06/25/1998DE19653790A1 Epicyclic spiral gear mixer-heat exchanger or reactor for viscous or powdery materials
06/24/1998EP0848974A2 Two-Phase downflow liquid distribution device
06/24/1998EP0848635A1 Liquid distributor for evaporator
06/24/1998EP0759900B1 Process and device for recovering amines and use of residues obtainable thereby
06/24/1998CN2284638Y Desorption tower for thin ammonia water containing carbon dioxide
06/23/1998US5770782 Process and system for alkylation of aromatic compounds
06/23/1998US5770021 Process and apparatus for purification of a gas stream containing acrolein
06/23/1998US5770019 Apparatus for concentrating waste liquid
06/18/1998WO1998025696A1 Multi-functional catalytic distillation structure
06/17/1998EP0847783A2 Process for gently separating fluids and removing materials from fluids in order to recover two or more fractions using a thermal separation process
06/17/1998CN2284092Y Dual-floating strip valve tower plate
06/17/1998CN1185203A Falling film evaporator with vapor-liquid separator
06/17/1998CN1185202A Falling film evaporator with vapor-liquid separator
06/17/1998CN1184692A Float valve column tray with improved hole structure
06/16/1998US5767294 Multistage reactor-extractor column, cationic ion exchange resin catalyst
06/16/1998US5766682 Process for chemical vapor deposition of a liquid raw material
06/16/1998US5766423 Dehydration of gases with liquid desiccants
06/16/1998US5766412 System and method of waster water reduction and product recovery
06/16/1998US5766370 Method for recovering a volatile organic component of solvent-in-water emulsions derived from paint overspray treatment and capture systems
06/16/1998US5765631 Fluid circulation apparatus
06/11/1998WO1998024529A1 Purification of vitamin e
06/10/1998EP0846027A1 Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing
06/10/1998EP0826416A4 Method of conditioning hydrocarbon liquids and an apparatus for carrying out the method
06/10/1998DE19650682A1 Recovery of aircraft deicing agents
06/10/1998DE19650188A1 Process and assembly to discharge filling bodies from esp. petro-chemical washing tower
06/10/1998CN1184107A Minute amount of water removing technology for tetrahydrofuran with common rectifying tower
06/10/1998CN1184000A Mass-and heat-exchange device
06/09/1998US5763714 Catalytic hydrotreatment of mixed aromatic stream to remove olefins and distillation to separate heavy and light oils, then selective adsorption to remove para-xylene
06/09/1998US5763712 Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant
06/09/1998US5763696 Removal of dinitrotoluene from process water
06/09/1998US5762834 Mass transfer device
06/09/1998US5762763 Removing condensate mixture of water vapor and other vapors and entrained liquids from compressed gas system, collecting above mixture in a boiler maintained in negative pressure, raising temperature to boil only water into vapors, removal
06/09/1998US5762762 Distillation apparatus
06/09/1998US5762668 Apparatus and method for deentrainment in a chemical process tower
06/04/1998WO1998023349A1 Method and device for bringing a gas and a liquid into contact with one another
06/03/1998EP0845293A1 Device for mass and heat exchange
06/03/1998EP0845285A2 Destillation apparatus
06/03/1998CN2282912Y Multi-overflow compound inclined hole tower
06/03/1998CN2282911Y Low temp. vacuum dewaterer
06/02/1998US5759356 Evaporator flask for a rotary evaporator
05/1998
05/28/1998WO1998022193A2 Process and apparatus for improving the efficiency of an evaporation process
05/28/1998DE19746245A1 Removal of crude oil (products)
05/28/1998DE19648372A1 Process and assembly for treating refuse tip water
05/28/1998CA2222084A1 Mass- and heat-exchange device
05/26/1998US5756866 Process for obtaining separate streams of methanol and ethanol, n-propanol and isobutanol
05/26/1998US5755960 Distributor allowing independent injection and/or removal of fluids
05/26/1998US5755933 Partitioned distillation column
05/26/1998US5755924 Apparatus for treating liquid products
05/26/1998US5755279 Heat exchanger
05/22/1998WO1998020952A1 Method and apparatus for vacuum distillation of solvents
05/20/1998EP0842686A1 Distillation apparatus with heat pump
05/20/1998EP0842685A1 Reaction distillation apparatus and reaction distillation method
05/20/1998EP0842684A1 Distillation apparatus
05/20/1998EP0842241A1 Improved process for selective hydrogenation of highly unsaturated compounds and isomerization of olefins in hydrocarbon streams
05/20/1998EP0841976A1 Refrigerant separation system
05/20/1998EP0787036B1 Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature
05/20/1998EP0765369A4 Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams
05/20/1998EP0739228A4 Recycling of wafer cleaning substances
05/19/1998US5752538 Liquid distributor for packed columns
05/14/1998DE19646895A1 Heat pump driven vacuum distillation plant for aqueous cleaning solutions
05/14/1998DE19646459A1 Liquid waste vacuum evaporation vessel
05/14/1998DE19646458A1 Waste water treatment process discharges gas or vapour to condenser
05/14/1998CA2190299A1 Combined multi stage flash-multi effect distillation system with brine reheat
05/13/1998EP0841087A2 A system and process for pelletizing products
05/13/1998EP0794821B1 Process and device for transforming a liquid stream into a gas stream
05/13/1998EP0701533B1 Method of producing ultra high purity monosilane and apparatus therefor
05/13/1998EP0690822B1 Water purifier, especially for domestic use
05/13/1998EP0633873B1 Two stage production of ether from tertiary alcohol
05/13/1998CN2281201Y Fractional column with lanteral blowing hole opening barrier
05/13/1998CN1181282A Mixed box tower plate
05/12/1998US5750629 Uretdione diisocyanates and a process for their production
05/12/1998US5750080 Method for in-situ modernization of a urea synthesis reactor
05/12/1998US5750008 Method and device for the extraction treatment of a sample
05/12/1998US5749245 For chlorofluorocarbons in refrigerators, air conditioners
05/07/1998WO1998018534A1 Downcomer for chemical process tower
05/07/1998DE19644600A1 Apparatus for completely deasphalting crude oils
05/06/1998CN1181061A Hydrogenation of unsaturated cyclic compounds
05/05/1998US5746987 Physical and chemical separation for volatile gases, retorts for rotation, sleeves, tubes, rotors seals, drives, vacuum and heating
04/1998
04/30/1998WO1998017634A1 Process for purifying acrylonitrile
04/29/1998EP0837725A1 Process for extracting pure substances from mixtures of high-boiling air and/or temperature-sensitive substances requiring high separative power by rectification in a fine vacuum and columns suitable for this process
04/29/1998EP0813517A4 Hydrogenation of unsaturated cyclic compounds
04/29/1998EP0783910A4 Process for the vacuum distillation of a liquid product, preferably crude petroleum, and a facility for carrying out the process
04/28/1998US5744008 Hurricane tower water desalination device
04/28/1998CA2077218C Process and apparatus for reclaiming waste gas treating chemicals
04/22/1998EP0837075A1 Titanium separation process
04/22/1998EP0836637A1 Process for improving color and color stability of oleic acid
04/22/1998EP0836536A1 On-site generation of ultra-high-purity buffered-hf for semiconductor processing
04/22/1998CN1179347A Multi-tower distillation method for producing alcohol of different grade
04/21/1998US5741953 Using acid cation exchange resin
04/16/1998WO1998015332A1 Method for distilling a mixture of substances and device for realising the same
04/16/1998CA2268401A1 Method for distilling a mixture of substances and device for realising the same
04/15/1998EP0835680A1 Distillation apparatus
04/15/1998EP0835169A1 On-site manufacture of ultra-high-purity hydrochloric acid for semiconductor processing
04/15/1998EP0835168A1 On-site manufacture of ultra-high-purity nitric acid for semiconductor processing
04/14/1998US5738762 Separating oil and water from emulsions containing toxic light ends
04/08/1998EP0834339A1 Method and apparatus for producing highly purified chemical liquids
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