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Class Information
Number: 202/155
Name: Distillation: apparatus > Apparatus > Systems > Separatory > Still and column > Plural stills
Description: A plurality of stills associated with a fractionating column.










Sub-classes under this class:

Class Number Class Name Patents
202/156 Parallel 13


Patents under this class:
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Patent Number Title Of Patent Date Issued
8691054 Multi-stage flash evaporator Apr. 8, 2014
8618334 Cyclohexanone production process with modified post-distillation Dec. 31, 2013
8591704 Fluid fractionation process and apparatus Nov. 26, 2013
8591705 Multi-effect evaporator Nov. 26, 2013
8524045 Systems for purifying silane Sep. 3, 2013
8524044 Systems for recovering silane from heavy-ends separation operations Sep. 3, 2013
8328995 Method for producing a distillate stream from a water stream containing at least one dissolved solid Dec. 11, 2012
8273219 Heat pump distillation Sep. 25, 2012
8246791 Multi-stage column distillation (MSCD) method for osmotic solute recovery Aug. 21, 2012
8088258 Method for purifying and separating a krypton-xenon mixture by rectification and a device for carrying out said method Jan. 3, 2012
8075741 Water purification method, process and apparatus Dec. 13, 2011
8016981 Method and apparatus for purifying and separating a heavy component concentrate along with obtaining light gas isotopes Sep. 13, 2011
8002952 Heat pump distillation Aug. 23, 2011
7931782 Method for recovering a liquid medium and system for recover a liquid medium Apr. 26, 2011
7922873 Method and apparatus for desalinating water combined with power generation Apr. 12, 2011
7922874 Multi-effect evaporator Apr. 12, 2011
7922875 Method and apparatus for enrichment of heavy oxygen isotopes Apr. 12, 2011
7879197 Purification of aqueous solutions of organic acids Feb. 1, 2011
7867365 Ethanol distillation with distillers soluble solids recovery apparatus Jan. 11, 2011
7862692 Liquid evaporating method and device Jan. 4, 2011
7857944 Method and apparatus for esterification Dec. 28, 2010
7850826 Multi-stage flash evaporator Dec. 14, 2010
7846303 Multi-structure internal heat exchange type distillation tower Dec. 7, 2010
7828939 Method for concentrating heavy nitrogen isotope Nov. 9, 2010
7794564 Evaporation system Sep. 14, 2010
7790001 Method of corrosion prevention Sep. 7, 2010
7708865 Vapor-compression evaporation system and method May. 4, 2010
7699961 Apparatus for concentrating water-soluble organic material Apr. 20, 2010
7678227 Multi-stage flash evaporator Mar. 16, 2010
7666281 Method and device for treating water Feb. 23, 2010
7610768 Apparatus and methods for water regeneration from waste Nov. 3, 2009
7608171 Distillation system and process Oct. 27, 2009
7528290 Apparatuses and methods for separating butene-1 from a mixed C.sub.4 feed May. 5, 2009
7516627 Method for separating a krypton-xenon concentrate and a device for carrying out said method Apr. 14, 2009
7476298 Structure for multiple-effect distillation using tubes or plates Jan. 13, 2009
7442348 Sulfur-bearing residue treatment system Oct. 28, 2008
7431805 Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures Oct. 7, 2008
7416644 Method and device for stripping ammonia from liquids Aug. 26, 2008
7413634 Distillation system Aug. 19, 2008
7357849 Method and system for separating solids from liquids Apr. 15, 2008
7297236 Ethanol distillation process Nov. 20, 2007
7297237 Method and device for separation and concentration by evaporation of mixture with separation factor of approx. 1 Nov. 20, 2007
7241365 Material for a facility for the production of anhydrous formic acid Jul. 10, 2007
7232504 Apparatus and method for distilling waste liquids Jun. 19, 2007
7101463 Condensation and recovery of oil from pyrolysis gas Sep. 5, 2006
7087140 Carbonizing waste processing apparatus Aug. 8, 2006
7041199 Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding carboxylate May. 9, 2006
6998026 Method for producing tertiary C.sub.4-C.sub.8-alkyl esters of (meth)acrylic acid Feb. 14, 2006
6905576 Method and system for producing silane Jun. 14, 2005
6835287 Apparatus, method for enrichment of the heavy isotope oxygen and production method for heavy oxygen water Dec. 28, 2004

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