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Class Information
Number: 202/153
Name: Distillation: apparatus > Apparatus > Systems > Separatory > Still and column
Description: Associations of still and fractionating column, either as separate or integral structures.










Sub-classes under this class:

Class Number Class Name Patents
202/154 Plural columns 103
202/155 Plural stills 88


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8691054 Multi-stage flash evaporator Apr. 8, 2014
8530606 Process for preparing diaryl carbonates Sep. 10, 2013
8323457 Dividing wall column with a heat pump Dec. 4, 2012
8273219 Heat pump distillation Sep. 25, 2012
8246791 Multi-stage column distillation (MSCD) method for osmotic solute recovery Aug. 21, 2012
8002952 Heat pump distillation Aug. 23, 2011
7981256 Splitter with multi-stage heat pump compressor and inter-reboiler Jul. 19, 2011
7981253 Distillation tower baffle Jul. 19, 2011
7931871 Inner tray for a chamber Apr. 26, 2011
7879197 Purification of aqueous solutions of organic acids Feb. 1, 2011
7850826 Multi-stage flash evaporator Dec. 14, 2010
7678237 Heat integrated distillation column Mar. 16, 2010
7563357 Process for cracking synthetic crude oil-containing feedstock Jul. 21, 2009
7527710 Increased-capacity still for high-quality distillation May. 5, 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
7476299 Vessel for easily polymerizable compound Jan. 13, 2009
7416642 System for cooling a heated juice by partial low-pressure evaporation Aug. 26, 2008
7413634 Distillation system Aug. 19, 2008
7410555 Process and apparatus for catalytic distillations Aug. 12, 2008
7407571 Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds Aug. 5, 2008
7297236 Ethanol distillation process Nov. 20, 2007
7101463 Condensation and recovery of oil from pyrolysis gas Sep. 5, 2006
7087140 Carbonizing waste processing apparatus Aug. 8, 2006
6911119 Simple portable mini distillation apparatus for the production of essential oils and hydrosols Jun. 28, 2005
6884324 Column for concentrating phthalic anhydride Apr. 26, 2005
6767517 Method and apparatus for the continuous production of diaryl carbonates Jul. 27, 2004
6702936 Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds Mar. 9, 2004
6682633 Apparatus for cocurrent fractional distillation Jan. 27, 2004
6635148 Method for refining easily polymerizable matter-contained substance and apparatus therefor Oct. 21, 2003
6582564 Distillation apparatus and distillation method Jun. 24, 2003
6551464 Distillation/reflux equipment Apr. 22, 2003
6514387 Rectifying column for extractive distillation of close-boiling or azeotropic boiling mixtures Feb. 4, 2003
6500309 Dimensions in reactive distillation technology Dec. 31, 2002
6419796 Solvent distillation apparatus Jul. 16, 2002
6375802 Method of retrofitting existing equipment for an improved aromatics separation process Apr. 23, 2002
6365006 Method for distilling a mixture of substances and device for realizing the same Apr. 2, 2002
6274003 Apparatus for upgrading hydrocarbon feeds containing sulfur, metals, and asphaltenes Aug. 14, 2001
6245218 System and method to effectuate and control coker charge heater process fluid temperature Jun. 12, 2001
6001220 Deodorisation plant for fatty oils Dec. 14, 1999
RE36435 Vaporization-condensation apparatus for air distillation double column, and air distillation equipment including such apparatus Dec. 14, 1999
5958191 Column for the separation of a volatile liquid from a mixture with another liquid of lower volatility Sep. 28, 1999
5955041 Natural circulation reactor and use for producing linear and cyclic acetals Sep. 21, 1999
5902460 Multi-stage fractional distillation process and apparatus May. 11, 1999
5755933 Partitioned distillation column May. 26, 1998
5658433 System for the purification of vitamin E Aug. 19, 1997
5624534 Volatiles separator and concentrator Apr. 29, 1997
5603809 Spinning band Feb. 18, 1997
5507919 Apparatus for the thermal and catalytic defluorination of alkylate Apr. 16, 1996
5478443 Apparatus for separating biochemical compounds from biological substances Dec. 26, 1995

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