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Class Information
Number: 210/644
Name: Liquid purification or separation > Processes > Liquid/liquid solvent or colloidal extraction or diffusing or passing through septum selective as to material of a component of liquid; such diffusing or passing being effected by other than only an ion exchange or sorption process > Diffusing or passing through septum selective as to material of a component in liquid/liquid solvent or colloidal extraction
Description: Process in which a constituent of the liquid being treated diffuses through a material which acts as a barrier to other constituents of the liquid and a constituent is preferentially dissolved in a second liquid usually contacting the other side of the barrier material.


Sub-classes under this class:

Class Number Class Name Patents
210/645 Biological fluid (e.g., blood, urine, etc.) 417
210/648 Including regenerating or rehabilitating the extracting liquid in liquid/liquid solvent or colloidal extraction 48


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
6495047 Process for selective coagulant recovery from water treatment plant sludge Dec. 17, 2002
6488856 Process for purifying a liquid hydrocarbon product Dec. 3, 2002
6471867 Electro-regenerating type apparatus for producing deionized water Oct. 29, 2002
6454958 Method and device for operating etching baths Sep. 24, 2002
6419829 Membrane process for making enhanced flavor fluids Jul. 16, 2002
6409921 Integrally asymmetrical polyolefin membrane for gas exchange Jun. 25, 2002
6399357 Filtration Jun. 4, 2002
6391205 Osmotic desalinization process May. 21, 2002
6384185 Process for purifying polycarbonate resin solution May. 7, 2002
6368509 Device for dialysis/purification of proteins Apr. 9, 2002
6309550 Mass transfer method and apparatus Oct. 30, 2001
6306305 Method and apparatus for diffusive transfer between immiscible liquids Oct. 23, 2001
6299777 Osmotic distillation process Oct. 9, 2001
6294092 Container Sep. 25, 2001
6245239 Cyclic aeration system for submerged membrane modules Jun. 12, 2001
6238566 Multi-stage solvent extraction of metal value May. 29, 2001
6217772 Method and a device for dialysis of liquid samples Apr. 17, 2001
6183645 Methods and apparatus for liquid phase separation Feb. 6, 2001
6162360 Membrane process for making enhanced flavor fluids Dec. 19, 2000
6149817 Shell-less hollow fiber membrane fluid contactor Nov. 21, 2000
6129843 Device for the removal and concentration of neutral mercury species from and water Oct. 10, 2000
6090289 Molecular sieves and processes for their manufacture Jul. 18, 2000
6075073 Latices from emulsified hydrocarbon rubber solutions by membrane separation Jun. 13, 2000
5961832 Method and apparatus for diffusive transfer between immiscible fluids Oct. 5, 1999
5951868 System and method for separation of crude or hydrocarbon free and/or disperse in water Sep. 14, 1999
5938929 Polysulfone hollow fiber semipermeable membrane Aug. 17, 1999
5888400 Process for preparing low-salt preparations of condensation products Mar. 30, 1999
5874004 Phase separation filter device Feb. 23, 1999
5868935 Method and apparatus for extraction and recovery of ions from solutions Feb. 9, 1999
5843316 Method of separating sodium hydroxide from white liquor or polysulfide liquor using diffusion dialysis Dec. 1, 1998
5824223 Methods and apparatus for osmotic distillation Oct. 20, 1998
5817359 Methods for dealcoholization employing perstration Oct. 6, 1998
5817884 Process for preparing aldehydes Oct. 6, 1998
5783075 Disposable dialyzer apparatus Jul. 21, 1998
5773713 Environmental monitoring of organic compounds Jun. 30, 1998
5773667 Process for preparing aldehyes Jun. 30, 1998
5770086 Methods and apparatus using hydrogels Jun. 23, 1998
5766480 Method for priming a hollow fiber oxygenator Jun. 16, 1998
5744042 Method for the separation of protein-bound substances from a protein-containing liquid by dialysis Apr. 28, 1998
5744039 Composite semipermeable membrane and production method thereof Apr. 28, 1998
5741424 Method of facilitating oxygen transport in blood oxygenators Apr. 21, 1998
5736050 Currents in narrow pores Apr. 7, 1998
5714072 Method for solvent extraction using a dual-skinned asymmetric microporous membrane Feb. 3, 1998
5660722 Hemo(dia)filtration apparatus and filtrate flow regulator Aug. 26, 1997
5646205 Ion complex membrane and a method for producing same Jul. 8, 1997
5637224 Hollow fiber contained liquid membrane pervaporation for removal of volatile organic compounds from aqueous solutions Jun. 10, 1997
5597486 Membrane filtration with optimized addition of second liquid to maximize flux Jan. 28, 1997
5589071 Anion-exchange membrane extractor for boric acid separation Dec. 31, 1996
5567388 Apparatus for measuring total organic carbon Oct. 22, 1996
5562828 Method and apparatus for recovering acid and metal salts from pricklining liquors Oct. 8, 1996

1 2 3 4 5 6


 
 
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