| Patents for B01D 3 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (21,025) |
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| 03/21/1990 | EP0359432A2 Devolatilization of liquid composition containing polymer and volatile constituents |
| 03/20/1990 | US4909967 Fluid flow; distributor is positioned in packing |
| 03/20/1990 | US4909907 Formic acid as overhead product |
| 03/20/1990 | US4909899 Method of concentrating sludges |
| 03/14/1990 | EP0357832A1 Combined adsorption rectifying process for separating fluids of a mixture |
| 03/14/1990 | CN1040359A Process for separation of hf via azeotropic distillation |
| 03/14/1990 | CN1007129B Packing element for exchange columns |
| 03/13/1990 | US4908466 Process and reaction vessel for production of alkyl nitrite |
| 03/13/1990 | US4908051 Axial swirl device for a contact and separation member |
| 03/08/1990 | WO1990001977A1 A distillation apparatus |
| 03/07/1990 | EP0357303A1 Downcomer, distillation tray assembly and distillation column |
| 03/07/1990 | EP0356638A1 Device for recycling a solvent |
| 03/07/1990 | CN1040151A Short-path vacuum distillation separation equipment |
| 02/28/1990 | EP0355773A2 Process and device for reducing or removing toxic matter during the preparation of stone fruit brandy in particular |
| 02/28/1990 | CN1040050A Process for preparing high-concentration mixtures of polyunsaturated fatty acids and of their esters from oils of animal and/or vegetable origin, so obtained mixtures, and their use for prophylatic |
| 02/27/1990 | US4904347 Method and apparatus for distilling liquid hydrocarbon products |
| 02/22/1990 | DE3828320A1 Process for decreasing or eliminating toxic substances during the production of spirits (brandy) principally from stone fruit |
| 02/21/1990 | CN1039838A Distiller device for perfume oil |
| 02/21/1990 | CN1006902B Process for the production of ethanol |
| 02/20/1990 | US4902310 Extraction into water to remove impurities, distillation |
| 02/20/1990 | US4901540 Retifier colums for vapour generators |
| 02/14/1990 | EP0354697A1 Process for the separation of HF via azeotropic distillation |
| 02/14/1990 | EP0354243A1 Process for concentrating and purifying alchohol |
| 02/14/1990 | CN1006786B Process for distillation of styrenes |
| 02/13/1990 | US4900403 Recovery of gas dissolved in flue condensate |
| 02/13/1990 | US4900402 Pervaporation process of separating a liquid mixture |
| 02/08/1990 | DE3826320A1 Method for guiding a reaction proceeding at elevated temperature and apparatus for producing thermally sensitive products at elevated temperatures |
| 02/07/1990 | EP0268583B1 Still and distillation process |
| 02/07/1990 | CN1039408A Hydrocarbon gas processing |
| 02/07/1990 | CN1039362A Vapor/liquid contact column structure |
| 02/06/1990 | US4898644 Stripping acid and contacting with cation to form salt |
| 01/31/1990 | EP0353215A2 Purification of alkyl glyoxylate |
| 01/31/1990 | EP0352870A1 Distillative separation employing bottom additives |
| 01/31/1990 | EP0352727A2 Process for the devolatilization of polymer solutions |
| 01/30/1990 | US4897161 Extractive agent such as diethylene glycol diethyl ether, or other glycols or glycol ethers |
| 01/25/1990 | WO1990000534A1 Heterogeneous isoparaffin/olefin alkylation process |
| 01/25/1990 | WO1990000533A1 Heterogeneous isoparaffin/olefin alkylation process |
| 01/17/1990 | EP0351143A2 Evaporating and cooling liquid |
| 01/17/1990 | EP0350659A1 Process for the separation of paraffinic and olefinic C4-hydrocarbons |
| 01/17/1990 | CN2051128U Automatic power on-off device for distiller |
| 01/17/1990 | CN1038871A Air conditioning process and apparatus therefor |
| 01/16/1990 | US4894482 Process for drying hydrogen fluoride-carboxylic acid mixtures |
| 01/16/1990 | US4894145 Distillation, vacuum gas oils |
| 01/16/1990 | US4894123 High efficiency water distiller |
| 01/10/1990 | EP0350248A1 Apparatus for treating photographic process waste liquor and method therefor |
| 01/10/1990 | EP0350217A2 Solvent recovery |
| 01/10/1990 | CN1038589A Distillation apparatus and method |
| 01/09/1990 | US4892625 Method for producing high purity chemicals |
| 01/09/1990 | CA1264285A1 Mass-transfer apparatus |
| 12/28/1989 | DE3844566A1 Process and apparatus for separating solvents and oils |
| 12/27/1989 | EP0347888A2 Silicone oil recovery |
| 12/27/1989 | EP0347605A2 Process and apparatus for separating solvent from oil |
| 12/26/1989 | US4889600 Fractionating column control apparatus and methods |
| 12/20/1989 | EP0347244A2 Distillation apparatus and method |
| 12/13/1989 | EP0118428B1 An improved method and apparatus for recycling energy in counterflow heat exchange and distillation |
| 12/12/1989 | US4886751 Process for the production of ethanol through molasses fermentation |
| 12/06/1989 | EP0344876A1 Liquid evaporator |
| 12/06/1989 | EP0344566A1 Distillation apparatus |
| 11/30/1989 | WO1989011521A1 Process for preparing polyunsaturated fatty acids |
| 11/29/1989 | EP0343260A1 Process and device for the treatment of fruit spirits |
| 11/29/1989 | CN1037461A Vapor/liquid contact device |
| 11/23/1989 | EP0342357A2 Apparatus, application and discontinuous process for carrying out an equilibrium reaction |
| 11/23/1989 | DE3816121A1 Process for the cleavage of alkyl tert-alkyl ethers |
| 11/22/1989 | CN2047984U Water cut-off protector of electric still |
| 11/21/1989 | US4882012 Water distiller |
| 11/16/1989 | WO1989010779A1 Apparatus and method for improving vapor quality in evaporators |
| 11/14/1989 | US4880504 Vacumm distillation system with spiralled cold coil |
| 11/14/1989 | US4880451 Gas/liquid contacting apparatus |
| 11/07/1989 | US4879407 Process for the preparation of ethyl trifluoroacetate |
| 11/07/1989 | US4879041 Vaporization of volatiles before membrane distillation |
| 11/02/1989 | WO1989010527A1 Heat and material exchange device and manufacturing process |
| 11/02/1989 | WO1989010173A1 Vapor/liquid contact column structure |
| 11/02/1989 | EP0339706A2 Apparatus for deodorization of organic liquids |
| 11/02/1989 | EP0339700A2 Apparatus for deodorising organic liquids |
| 11/02/1989 | DE3813612A1 Process and apparatus for guiding an equilibrium reaction proceeding at elevated temperature |
| 10/31/1989 | US4877490 Dehydration of formic acid by extractive distillation with dicarboxylic acids |
| 10/25/1989 | EP0338322A2 Evaporating plant with forced circulation for decontamination of radioactive liquids |
| 10/25/1989 | CN1036544A Industrial process for separation and recovery of chlorine |
| 10/24/1989 | US4876037 Contact tower and method of assembly |
| 10/18/1989 | EP0337150A1 Structured column packing with liquid holdup |
| 10/18/1989 | CN1005457B Multistage flash anaporator providing isolation of impure stage distillate flows from the main duct distillate flow |
| 10/17/1989 | US4874475 Using alkali(earth) chlorides as solvent |
| 10/17/1989 | US4874473 Separation of diastereomers by extractive distillation |
| 10/17/1989 | CA1262394A1 Preparation of concentrated, stable water-in-oil emulsions of water-soluble or water-swellable polymers |
| 10/12/1989 | EP0317556A4 Distillation apparatus and method. |
| 10/12/1989 | EP0277230A4 Continuous hydrogenation of unsaturated oils. |
| 10/10/1989 | US4872955 Vapor/liquid contact column structure |
| 10/10/1989 | US4872949 Using shell in tube heat exchanger |
| 10/03/1989 | US4871485 Continuous hydrogenation of unsaturated oils |
| 10/03/1989 | CA1262108A1 Method and apparatus for recycling energy in counterflow heat exchange and distillation |
| 09/27/1989 | EP0334702A1 Process for the production of tertiary alkylether by reactif distillation |
| 09/27/1989 | EP0333971A1 An apparatus for destruction of processing liquid, preferably processing liquids from photographic laboratories |
| 09/26/1989 | US4869851 Vapor/liquid contact device and method of mixing a vapor flow and a counter current reflux liquid flow |
| 09/26/1989 | US4869810 Method of recovering evaporable liquids from mud comprising fine grained particles and the evaporable liquids |
| 09/26/1989 | US4869785 Steam distillation apparatus |
| 09/26/1989 | US4869740 Hydrocarbon gas processing |
| 09/26/1989 | CA1261249A1 Distributor for liquid-gas contact column and method of preparation and use |
| 09/26/1989 | CA1260382A1 Method and apparatus to convert a long tube vertical evaporator to a falling film evaporator |
| 09/21/1989 | WO1989008487A1 Process for treatment of drilling mud |
| 09/20/1989 | CN1035621A Multiparameter batch rectification technique |