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Class Information
Number: 202/156
Name: Distillation: apparatus > Apparatus > Systems > Separatory > Still and column > Plural stills > Parallel
Description: The plurality of stills are so related that each delivers its vapor direct to the column or columns. The stills may be used alternatively as single stills or in groups.

Patents under this class:

Patent Number Title Of Patent Date Issued
8524044 Systems for recovering silane from heavy-ends separation operations Sep. 3, 2013
8524045 Systems for purifying silane Sep. 3, 2013
8246791 Multi-stage column distillation (MSCD) method for osmotic solute recovery Aug. 21, 2012
7101463 Condensation and recovery of oil from pyrolysis gas Sep. 5, 2006
7052656 Column for carrying out an isotope exchange between a liquid substance and a gaseous substance May. 30, 2006
6884324 Column for concentrating phthalic anhydride Apr. 26, 2005
5955041 Natural circulation reactor and use for producing linear and cyclic acetals Sep. 21, 1999
5643408 Apparatus for decontaminating a liquid surfactant of dioxane Jul. 1, 1997
5080761 Method of optimizing the operation of a distillation column provided with a side heating device Jan. 14, 1992
4678543 Apparatus for producing ethanol Jul. 7, 1987
4662995 Distillation process May. 5, 1987
4422903 Anhydrous ethanol distillation method and apparatus Dec. 27, 1983
4295937 Rectifier Oct. 20, 1981

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