| Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025) |
|---|
| 06/26/1991 | EP0433729A1 Rotary evaporator |
| 06/25/1991 | US5026459 Apparatus for reactive distillation |
| 06/25/1991 | US5025831 Compact radial flow distributor |
| 06/25/1991 | CA1285289C High temperature vacuum steam distillation process to purify and increase the frylife of edible oils |
| 06/18/1991 | US5024730 Control system for delayed coker |
| 06/18/1991 | US5024728 Volatilizer connected to vacuum coupled to heat exchanger |
| 06/13/1991 | WO1991008275A1 Process for recovery and treatment of a diverse waste stream |
| 06/13/1991 | WO1991008274A1 Process for recovery and treatment of hazardous and non-hazardous components from a waste stream |
| 06/12/1991 | EP0431030A1 A distillation apparatus. |
| 06/12/1991 | CA2005258A1 Heterogeneous isoparaffin/olefin alkylation process |
| 06/12/1991 | CA2005257A1 Heterogeneous isoparaffin/olefin alkylation process |
| 06/11/1991 | US5022967 Microdistillation apparatus |
| 06/05/1991 | CN1051869A Catalyzed reaction distillation tower |
| 06/04/1991 | US5021199 Sieve plate for effecting gas-liquid contact and structure containing sieve plate |
| 06/04/1991 | US5021128 Water distillation system and method with controls |
| 06/04/1991 | US5020588 Method and apparatus for simultaneous heat and mass transfer utilizing a plurality of gas streams |
| 05/30/1991 | WO1991007353A1 Process for purifying organically polluted waste water |
| 05/29/1991 | EP0428711A1 Method and apparatus for clarifying liquids |
| 05/29/1991 | CN1051679A Static electric heater for vacuum molecular distillation |
| 05/28/1991 | US5019669 Alkylation of organic aromatic compounds |
| 05/28/1991 | US5019219 Vacuum distillation process |
| 05/28/1991 | US5019218 Vacuum distillation process |
| 05/23/1991 | WO1991007877A2 Method for extracting cholesterol from an animal fat |
| 05/23/1991 | CA2069408A1 Proces for the extraction of cholesterol contained in fatty substance of animal origin |
| 05/22/1991 | EP0428265A1 Process and structure for effecting catalytic reactions in distillation structure |
| 05/22/1991 | CN1051516A Multiple-tube filling tower |
| 05/21/1991 | US5017631 Dustless, plasticizer |
| 05/16/1991 | DE3937671A1 Cascade reactor for chlorate-acid reaction - to produce chlorine di:oxide-chlorine gas mixt. |
| 05/15/1991 | EP0426929A1 A high performance method and evaporator apparatus, particularly for concentrating waste liquids and recovering their raw materials |
| 05/15/1991 | CN1051309A Baffle-less roll-adubing type thin-membrane short-range distiller |
| 05/14/1991 | US5015782 Multistage catalytic etherification of mixed olefinic hydrocarbons containing four carbons and also containing isoalkenes |
| 05/14/1991 | US5014740 Distributor for packed tower |
| 05/07/1991 | US5013407 Apparatus for reactive distillation |
| 05/02/1991 | EP0425481A2 Support device for a packed column |
| 05/02/1991 | EP0425216A2 Laboratory evaporation apparatus |
| 05/02/1991 | EP0424460A1 Heterogeneous isoparaffin/olefin alkylation process. |
| 05/02/1991 | EP0424445A1 Heterogeneous isoparaffin/olefin alkylation process. |
| 05/01/1991 | CN1051035A Process for preparing vinylacetate |
| 04/30/1991 | US5011579 Neutral oil recovery process for the production of naphthenic acids |
| 04/30/1991 | US5011571 Evaporation |
| 04/24/1991 | EP0423950A2 Purification of propylene oxide using an aqueous acetone extractive distillation agent |
| 04/24/1991 | EP0423658A2 Process for isolating vinyl acetate |
| 04/24/1991 | CN1050828A Mixed phase catalysis reaction distillation technology and equipment |
| 04/21/1991 | CA2027824A1 Purification of propylene oxide using an aqueous acetone extractive distillation agent |
| 04/17/1991 | EP0422897A2 Recovery of water-insoluble epoxy alcohols |
| 04/17/1991 | CN1050685A Bubble cap |
| 04/17/1991 | CN1012357B Method for recovery of cyanide |
| 04/16/1991 | US5007179 Cold air lock vapor seal for process solvent vapor recovery and control |
| 04/11/1991 | DE3940994C1 Coupling of a vapour tube to a driver tube with a driver lug - uses a tube with at least one axial and radial recess, against which the lug is seated |
| 04/09/1991 | US5006206 Extractive distillation with mixture of water and tert-butanol |
| 04/09/1991 | US5006205 Dehydration of formic acid by extractive distillation |
| 04/04/1991 | WO1991004357A1 Cold air lock vapor seal for process solvent vapor recovery and control |
| 04/03/1991 | EP0420026A2 Preparation of urethane prepolymers having low levels of residual diisocyanate |
| 04/02/1991 | CA1282318C Regular packing element of thin foil-like material for mass transfer and heat exchange columns |
| 03/27/1991 | EP0419406A1 Distillation apparatus for making hydrogen peroxide |
| 03/26/1991 | CA1281994C Auto-cooled extraction process of heavy hydrocarbon fractions |
| 03/20/1991 | EP0417407A1 Shaped bodies of macroporous ion exchanger resins and their use |
| 03/06/1991 | EP0415427A2 Polymer recovery process |
| 03/06/1991 | EP0415229A2 An apparatus for gas/liquid separation |
| 03/06/1991 | EP0245406B1 Process and device for distilling fresh water from sea-water |
| 03/06/1991 | CN2072425U Multi-functional extractor |
| 03/05/1991 | US4997547 N-formylmorpholine |
| 03/05/1991 | CA1280968C Suitable distillation packing for the cryogenic separation of air |
| 02/27/1991 | EP0413866A2 Fractionating column control apparatus and methods |
| 02/27/1991 | EP0281628B1 Contact-separation element |
| 02/27/1991 | CN2071973U Water and ges balancer |
| 02/27/1991 | CN2071972U High-efficient bubble cap column |
| 02/26/1991 | US4995946 Method and apparatus for achieving balanced flow on multipass distillation trays |
| 02/26/1991 | US4995945 Counter-current gas-liquid contacting device |
| 02/26/1991 | CA1280705C Solvents and process for extractive fermentation |
| 02/21/1991 | WO1991001784A1 Method and apparatus for separation processes |
| 02/19/1991 | US4994210 Trough |
| 02/19/1991 | US4994152 Cyclohexanone, methylcyclohexanone and high boiling by-product |
| 02/14/1991 | DE3938670C1 Drinking water from sea water - water is pulled in through vacuum in floating column and passes through to evapn. chamber |
| 02/13/1991 | EP0412377A2 Mobile self-contained system for on-site recovery of solvents |
| 02/13/1991 | CN2071078U Distillator with water and fire tube structure |
| 02/12/1991 | WO1991001654A1 Process and apparatus for concentrating high-viscosity foodstuffs |
| 02/12/1991 | US4992143 Continuous process for the separation of a partially water soluble component from a slurry |
| 02/06/1991 | CN1048987A Catalytic distillation column |
| 02/05/1991 | US4990350 Reverse osmosis |
| 02/05/1991 | US4990222 Conveying through extruder, vaporizing, drawing off and condensing; efficiency, safety |
| 01/30/1991 | EP0410177A1 Alkylation of organic aromatic compounds in a dual bed system |
| 01/29/1991 | CA1279482C Air conditioning process and apparatus therefor |
| 01/26/1991 | CA2017620A1 Alkylation of organic aromatic compounds in a dual bed system |
| 01/24/1991 | WO1991000771A1 Air conditioning process and apparatus therefor |
| 01/22/1991 | US4986975 Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane |
| 01/22/1991 | US4986884 Purification, countercurrent vacuum distillation, feeding polymerization inhibitors to upper stage |
| 01/20/1991 | WO1991001169A1 Method and apparatus for introducing a liquid feed into a vapor/liquid separation tower |
| 01/20/1991 | CA2035452A1 Method and apparatus for introducing a liquid feed into a vapor/liquid separation tower |
| 01/17/1991 | DE4003120C1 Liq. mixture thermal separation method - heating re-concentrating solvent stream and mixture stream before combining at end for supply |
| 01/16/1991 | EP0393029A4 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents |
| 01/15/1991 | US4985122 Vacuum distillation apparatus and method with pretreatment |
| 01/15/1991 | CA1279029C Methods and apparatus for dynamically refining and deodorizing fats and oils |
| 01/10/1991 | WO1991000130A1 Water distilling method and apparatus |
| 01/09/1991 | EP0407038A1 Method for the preparation of dialkyl ethers |
| 01/08/1991 | US4983259 Overland petroleum processor |
| 01/08/1991 | US4983223 During cleaning, degreasing or paint stripping in a halogenated hydrocarbon |
| 01/08/1991 | CA1278759C Process and apparatus for the production of carbon dioxide and ethanol by continuous fermentation |
| 01/08/1991 | CA1278745C Gas-liquid contacting device |
| 01/02/1991 | EP0406093A1 Laboratory distillation apparatus |