| Patents for B01D 61 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor (28,150) |
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| 08/29/1978 | US4110175 Electrodialysis method |
| 08/15/1978 | US4107264 Titanium dioxide, digestion with hydrofluoric acid, precipitation with ammonium hydroxide, calcining |
| 08/15/1978 | US4107026 System and method for electric dewatering of solids suspension |
| 08/15/1978 | US4107015 Method for removal of SO2 from gases |
| 08/15/1978 | US4106920 For separation of aliphatically unsaturated hydrocarbons of two to four carbon atoms from mixtures containing them |
| 08/08/1978 | US4105556 Reverse osmosis |
| 08/08/1978 | US4105548 Separation device of rigid porous inorganic hollow filament and use thereof |
| 08/08/1978 | US4105547 Filtering process |
| 08/08/1978 | US4105534 Apparatus for removing impurities from electrolyte solutions |
| 08/08/1978 | US4105533 Electrodialysis cell and method for producing cationic permeable membranes used therein |
| 07/18/1978 | US4101400 Method for dewatering sludge |
| 07/11/1978 | US4100113 Electrolytic cell membrane and method of preparation by plasma polymerization of polyamide or polytetrafluoroethylene thin films onto polymeric substrates |
| 07/11/1978 | US4100050 Coating metal anodes to decrease consumption rates |
| 07/04/1978 | US4098274 Digital memory with power outage and memory overload logic in a dialysis system |
| 06/20/1978 | US4096060 Water purification |
| 06/06/1978 | US4093545 Method and apparatus for determining the amount of ultrafiltration during dialysis |
| 06/06/1978 | US4093540 Refining crude glyceride oil, ultrafiltration, passing through a silica or alumina adsorbent |
| 05/30/1978 | US4091834 Apparatus for automatically preparing solution of controlled concentration |
| 05/16/1978 | US4089778 Process for separating a substance from a liquid medium containing the substance in dissolved form |
| 05/16/1978 | US4089760 Method for regenerating waste developers used for processing silver halide photographic materials and method for storing developers |
| 05/16/1978 | US4089653 Apparatus for the separation of hydrogen sulfide from gas mixture including carbon dioxide |
| 04/25/1978 | US4086164 Method of disposing of waste water containing emulsified oil |
| 04/25/1978 | US4086163 Liquid membrane emulsion |
| 04/11/1978 | US4083781 Reverse osmosis |
| 04/11/1978 | US4083779 Ultrafiltration, reverse osmosis |
| 04/04/1978 | US4082835 Removal of SO2 from gases |
| 04/04/1978 | US4082658 Hollow fiber membranes of ethylene copolymers and process for use |
| 03/28/1978 | US4081369 Liquid membranes, precipitation |
| 03/07/1978 | US4077885 Granular inert layer of silicon dioxide or carbon black |
| 03/07/1978 | US4077883 Reverse osmosis system with automatic pressure relief valve |
| 03/07/1978 | US4077875 Collodion bag concentration accelerator and sampler |
| 02/28/1978 | US4076626 High strength cast modules for supporting reverse osmosis membranes |
| 02/21/1978 | US4075093 Permselective membrane |
| 02/21/1978 | US4075092 High surface area permeable material |
| 02/21/1978 | US4075091 Blood, membranes |
| 02/07/1978 | US4072610 Production of solutions |
| 01/31/1978 | US4071444 Portable chemical reactor for use as an artificial kidney |
| 01/31/1978 | US4071431 Installation for the treatment of metals pickling solutions |
| 01/10/1978 | US4067804 Solute-separating membrane |
| 01/10/1978 | US4067803 Dialysis |
| 01/10/1978 | US4067794 Sealing gasket for chamber wall |
| 01/03/1978 | US4066556 Fluid filter and method of making same |
| 01/03/1978 | US4066553 Apparatus with supported tubular membranes for the treatment of fluids |
| 01/03/1978 | US4066551 Portable water filtration device |
| 12/20/1977 | US4064052 Separation of protein from cheese whey, spirally wound membrane |
| 12/20/1977 | US4064040 Sour water treating process utilizing liquid membranes having a sulfonated polymer exterior oil phase |
| 12/13/1977 | US4062882 Process for refining crude glyceride oils by membrane filtration |
| 12/13/1977 | US4062778 Device for diffusing matter between two fluids via semi-permeable diaphragms |
| 12/13/1977 | US4062771 Apparatus and process for membrane filtration |
| 12/13/1977 | US4062756 Electrodialysis |
| 11/29/1977 | US4060566 Membrane process for separating materials |
| 11/29/1977 | US4060081 Multilayer membrane useful as synthetic skin |
| 11/22/1977 | US4059530 Dialyzer cartridge of roll type particularly for extracorporal artificial kidneys |
| 11/15/1977 | US4058441 Process for the regeneration of spent pickling solutions |
| 11/15/1977 | US4058373 Combustible gas-in-oil detector |
| 11/08/1977 | US4057499 Apparatus and method for separation of blood |
| 11/08/1977 | US4057483 Electrodialysis apparatus and process for ion modification |
| 11/08/1977 | US4057481 High performance, quality controlled bipolar membrane |
| 11/01/1977 | US4056462 Separating hydrocarbon mixtures by emulsification |
| 09/27/1977 | US4051230 Porous membrane impregnated with organic chelating extractant, regeneration of chelating agent and release of metal cation by acid |
| 09/27/1977 | US4051002 Cation-exchange membrane, copolymer of ethylene and unsaturated carboxylic acid or salt |
| 09/13/1977 | US4048386 Process for making an electrochemical cell or battery, e.g. a fuel cell or fuel cell battery, and a cell or battery made by the process |
| 09/13/1977 | US4048038 Electroflocculation cell |
| 09/13/1977 | US4047908 Nylon-polyvinyl alcohol graft copolymer |
| 09/06/1977 | US4046685 Simultaneous production of multiple grades of purified water by reverse osmosis |
| 08/30/1977 | US4045352 Ion-exchange hollow fibers |
| 08/23/1977 | US4043896 Polyvinyl formal membrane |
| 08/16/1977 | US4042496 Process for preparing improved cation-exchange membranes |
| 08/02/1977 | US4039455 Retaining device for an apparatus having flat semi-permeable membranes |
| 07/19/1977 | US4036760 Fluid fractionating membrane apparatus |
| 07/19/1977 | US4036749 Adding magnesium hydroxide to precipitate calcium carbonate then calcium hydroxide to precipitate magnesium hydroxide |
| 07/12/1977 | US4035271 Method of removing acids from reaction liquid of dimethyl dioxane synthesis |
| 07/05/1977 | US4033850 Ion selective membranes |
| 07/05/1977 | US4033842 Production of monobasic potassium phosphate by electrodialysis |
| 07/05/1977 | US4033841 Liquid removing method and apparatus |
| 06/21/1977 | US4031010 Combined dialyzer and adsorber unit |
| 06/14/1977 | US4029744 Process for removing the salt of a weak acid and a weak base from solution |
| 06/07/1977 | US4028252 Accordion fold flat plate dialyzer |
| 06/07/1977 | US4028250 Filtration apparatus |
| 05/24/1977 | US4025425 For fluids, stack of membrane packs |
| 05/17/1977 | US4024054 Bubbles formed by cells of living organisms |
| 05/17/1977 | US4024047 Electrostatic water treatment apparatus |
| 05/17/1977 | US4024043 Single film, high performance bipolar membrane |
| 05/10/1977 | US4022692 Non-woven support screen for mass transfer devices |
| 05/03/1977 | US4021343 Water purifier |
| 04/05/1977 | US4016083 Spirally-wound membrane-type separator module capable of reversing the direction of liquid flow |
| 04/05/1977 | US4016082 Dialyzer |
| 04/05/1977 | US4016081 Staged membrane diffusion device and membrane support |
| 04/05/1977 | US4015955 Fluid separation process and membrane |
| 03/29/1977 | US4014787 Agglomeration of small particles, filtration |
| 03/29/1977 | US4014785 Novel liquid membrane formulations and uses thereof |
| 03/29/1977 | US4014665 Membrane process and product |
| 02/22/1977 | US4009088 Process for producing aqueous solutions of sodium, ammonium and magnesium sulphite |
| 02/01/1977 | US4006078 Preparation of soluble edible protein from leafy green crops |
| 01/18/1977 | US4003819 Filtration of solids suspension enhanced by applied DC potential |
| 01/18/1977 | US4003811 Electrokinetic separation of solid particles from aqueous suspensions thereof |
| 01/11/1977 | US4002567 Ultrafiltration apparatus |
| 01/04/1977 | US4001109 Isopropanol, cyclohexane |
| 12/28/1976 | US4000072 Artificial kidney apparatus |
| 12/28/1976 | US4000065 Method and apparatus for purifying aqueous streams contaminated with organic materials |