| 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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| 06/07/1977 | US4028072 Apparatus for scrubbing of hydrocarbons from gas |
| 05/31/1977 | US4026791 Treatment of aqueous waste |
| 05/24/1977 | US4025398 Distillation processes and apparatus |
| 05/24/1977 | US4025397 Method and system for fractionation control responsive to heat balance |
| 05/24/1977 | US4025396 Method and system for fractionation heat balance control |
| 05/17/1977 | US4024191 Benzene, thiophenol |
| 05/17/1977 | US4024027 Fractionation heat balance control system |
| 05/17/1977 | US4024026 Temperature control of integrated fractionation and claytreating of hydrocarbons |
| 05/17/1977 | US4023946 Rectification system for the separation of fluids |
| 05/10/1977 | US4022669 Equipment for cleaning solvents |
| 05/03/1977 | US4021476 P-alkyl phenols |
| 05/03/1977 | US4021310 Method for inhibiting the polymerization of acrylic acid or its esters |
| 04/26/1977 | US4019965 Separation of phenol, cyclohexanone, and cyclohexylbenzene containing mixtures employing dialkyl and dicycloalkyl phthalates |
| 04/26/1977 | US4019964 Method for controlling the reboiler section of a dual reboiler distillation column |
| 04/26/1977 | US4019951 Magma cooling tower |
| 04/26/1977 | US4019866 Recirculating reaction apparatus for continuous preparation of a polyamide |
| 04/19/1977 | US4018656 Thermal softening and distillation by regenerative method |
| 04/19/1977 | US4018263 Method and apparatus for generating and storing gaseous fluids |
| 04/12/1977 | US4017421 Wet combustion process |
| 04/05/1977 | US4015369 Device for removing water from hydraulic fluid |
| 03/29/1977 | US4014953 Method for purifying HF catalyst in an isoparaffin-olefin alkylation |
| 03/29/1977 | US4014754 Adding a plasticizer, distillation, n-methyl pyrrolidone |
| 03/29/1977 | US4014752 Flashing, radioactivity |
| 03/29/1977 | US4014751 Vapor generating and recovering apparatus |
| 03/29/1977 | US4014667 Antifreeze recovery system |
| 03/01/1977 | US4010065 Stripping, dehydration |
| 03/01/1977 | US4010010 Gas-vapor separation process and apparatus with low energy consumption |
| 03/01/1977 | US4009751 Method of and apparatus for high intensity heat and/or mass transfer between two or more phases |
| 02/22/1977 | US4009230 Device for vacuum treatment of liquids by means of a gaseous strip-medium |
| 02/22/1977 | US4009083 Regeneration of liquid desiccants and acid gas absorbing liquid desiccants |
| 02/15/1977 | US4008150 Fractionation to remove a high-boiling material and a dissolved substance |
| 02/15/1977 | US4008130 Method for distilling a ternary azeotrope of fluorosilicic acid, hydrogen fluoride and water |
| 02/08/1977 | US4007304 Method for coating surfaces |
| 02/08/1977 | US4007112 Method of controlling a distillation column for topping crude petroleum |
| 02/08/1977 | US4007094 Process and apparatus for recovering clean water from aqueous wastes |
| 02/08/1977 | US4007022 Process for the removal of gaseous monomers from polyvinyl chloride-water dispersions |
| 02/01/1977 | US4006062 Still extractor with novel stopcock means |
| 02/01/1977 | US4005997 Increasing dew point depression |
| 01/25/1977 | US4004984 Distillation plant |
| 01/25/1977 | US4004965 Vertical flameless reboiler for reconcentrating liquid desiccant |
| 01/25/1977 | US4004609 Material transmitting element for contacting streaming media of different phases or the same phase |
| 01/18/1977 | US4003799 Method for controlling heat input to the reboiler section of a distillation column |
| 01/18/1977 | US4003798 Vapor generating and recovering apparatus |
| 01/18/1977 | US4003796 Fermentation |
| 01/11/1977 | US4002554 Purging, nitric oxide, distillation unit |
| 01/11/1977 | US4002536 Arrangement for preventing undesired fluid backflow during start-up and shutdown of two-stage evaporation installations |
| 01/11/1977 | US4002525 Chemical recovery from waste liquors utilizing indirect heat exchangers in multi-stage evaporation plus contact steam stripping |
| 01/11/1977 | US4002263 Leakproof mounting device for the support plate of a fluidization reactor grid |
| 12/28/1976 | US4000044 Fractionation of immiscible liquids of equal density |
| 12/21/1976 | US3998704 Automatic regulation system for a distillation unit |
| 12/14/1976 | US3997633 Contact towers with leak-proof support of improved plate subassembly |
| 12/14/1976 | US3997631 Gas-liquid mixing apparatus using an ejector |
| 12/14/1976 | US3997432 Continuously adjusting the index of filtrability of a gas oil fraction |
| 12/14/1976 | US3997331 Ammonium paratungstate |
| 11/30/1976 | US3994977 Manufacture of formaldehyde |
| 11/16/1976 | US3992492 Apparatus for contacting a gas and a liquid |
| 10/26/1976 | US3988218 Process for recovering alkyl sulfonic acid from photosulfoxidation reaction mixture |
| 10/26/1976 | US3988213 In a polymerization inhibitor |
| 10/19/1976 | US3986938 Or desalination |
| 10/12/1976 | US3985625 Alcoholic beverage still with domed conduits for vapor flow and frustum apertures for concurrent vapor/liquid flow |
| 10/12/1976 | US3985624 Device for continuous sampling, especially in a distillation column for topping crude petroleum |
| 10/12/1976 | US3985623 Column material balance control responsive to differential pressure over a column withdrawal tray |
| 09/28/1976 | US3983011 Removal of chloride impurities from an adiponitrile feed by distillation in the presence of a high boiling amine |
| 09/14/1976 | US3980528 Solvent separation of diolefins from mixtures containing the same |
| 09/14/1976 | US3980526 Liquid distillation apparatus |
| 09/07/1976 | US3979527 Vacuum steam distillation |
| 08/31/1976 | US3977935 Method and apparatus for evaporating liquids |
| 08/24/1976 | US3976758 Production of chlorine dioxide |
| 08/24/1976 | US3976537 Heat exchangers and evaporators |
| 08/24/1976 | US3976179 Controlling the temperature of a depropanizer tower by chromatographic analysis of feed and bottoms |
| 08/17/1976 | US3975505 Production of chlorine dioxide |
| 08/17/1976 | US3975241 Distillation apparatus |
| 08/17/1976 | US3975230 Alkali metal sulfite or carbonate |
| 08/17/1976 | US3975229 Flameless reboiler for reconcentrating liquid desiccant |
| 08/17/1976 | US3975164 Apparatus for purifying HF catalyst in an alkylation process |
| 08/10/1976 | US3974023 Method for concentration of foaming liquids |
| 08/03/1976 | US3972691 Method for recovering chlorine from chlorine-containing gaseous mixtures containing carbon dioxide as one component |
| 07/20/1976 | US3970512 Falling film evaporator |
| 07/13/1976 | US3969450 Heat-exchanger trays and system using same |
| 07/13/1976 | US3969447 Grids for fluid contact apparatus |
| 07/13/1976 | US3969196 Process for the separation of mixtures of substances |
| 07/13/1976 | US3969194 Method and apparatus for the purification of a liquid contaminated with radioactive substances |
| 07/06/1976 | US3968067 Process for preparing high polymer latices from organic solvent dispersions |
| 07/06/1976 | US3968030 Method and an installation for improving the energy balance of installations for processing chemical process streams and especially petroleum refineries |
| 06/29/1976 | US3966982 Process and apparatus for treating oleaginous seed material |
| 06/29/1976 | US3966562 Multi-stage flash distillation plant |
| 06/29/1976 | US3966559 Apparatus for deodorizing oil and similar material |
| 06/29/1976 | US3966538 Falling strand devolatilization apparatus |
| 06/22/1976 | US3964979 Nitric oxide |
| 06/22/1976 | US3964978 Nitrogen dioxide |
| 06/22/1976 | US3964975 Means for controlling the temperature of a depropanizer tower |
| 06/15/1976 | US3963622 Hollow fibers, stills |
| 06/15/1976 | US3963619 Apparatus for the prevention of scaling in desalination apparatus |
| 05/25/1976 | US3959419 Vapor-liquid contact method |
| 05/25/1976 | US3959085 Fractionation apparatus having two integral and concentric fractionating units |
| 05/25/1976 | US3958964 Apparatus for bringing gases and liquids into contact |
| 05/25/1976 | US3958585 Apparatus for stripping residual solvent from polymer pellets |
| 05/18/1976 | US3957588 Or purification of feed stocks |
| 05/18/1976 | US3957531 Two tank cleaning process using a contaminated cleaning mixture capable of forming an azeotrope |
| 05/04/1976 | US3954921 Gas-liquid contacting method and scrubber used therefor |