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Class Information
Number: 202/235
Name: Distillation: apparatus > Apparatus > Types > Separatory > Still > Indirectly heated
Description: Stills heated by fluids carried in or through or around them, in coils, pipes, or jackets, or in superficial contact, the fluids being held from contact with the distilland.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8623174 Liquid evaporation system with heated liquid Jan. 7, 2014
8617358 Pure liquid manufacturing apparatus Dec. 31, 2013
8585869 Multi-stage wastewater treatment system Nov. 19, 2013
8558043 Modular biomass treatment unit Oct. 15, 2013
8377257 Compact total evaporator and device for carrying out the controlled drying, evaporation and/or reaction of a number of fluids Feb. 19, 2013
8361277 Evaporator and method of operation thereof Jan. 29, 2013
8304590 Autothermal and mobile torrefaction devices Nov. 6, 2012
8198493 High energy efficiency biomass conversion process Jun. 12, 2012
8080138 Desalination using low-grade thermal energy Dec. 20, 2011
7815776 Desalinization by evaporation from capillary material Oct. 19, 2010
7687041 Apparatus and methods for urea production Mar. 30, 2010
7572352 Method and plant for desalinating salt-containing water Aug. 11, 2009
6969446 Method for producing concentrated nitric acid and installation for carrying out a method of this type Nov. 29, 2005
6551464 Distillation/reflux equipment Apr. 22, 2003
5858178 Process and device for preparing and/or extracting samples using a vaporizable agent at high temperature Jan. 12, 1999
5814192 Vapor compression distillation apparatus Sep. 29, 1998
5783047 Heat integrated distillation column Jul. 21, 1998
5730836 Evaporative concentration of clay slurries Mar. 24, 1998
5711857 Microwave distillation apparatus Jan. 27, 1998
5670027 Method of drying a gas making use of a distillation of a liquid desiccant agent Sep. 23, 1997
5624530 Spray drying system Apr. 29, 1997
5597453 Apparatus and method for vapor compression distillation device Jan. 28, 1997
5582680 Wastewater treating apparatus Dec. 10, 1996
5582691 Ocean thermal energy conversion (OTEC) system Dec. 10, 1996
5582690 Method of and means for water desalinization Dec. 10, 1996
RE35283 High efficiency water distiller Jun. 25, 1996
5496448 Evaporation means and method Mar. 5, 1996
5472576 Process for the recovery of industrial solvents and diluents from industrial waste Dec. 5, 1995
5457277 Multiple reboiler system Oct. 10, 1995
5443040 Pipestill heater and method for controlling combustion in pipestill heater Aug. 22, 1995
5382328 Installation for processing waste oil Jan. 17, 1995
5346593 Intermediate reboiler for a methanol plant Sep. 13, 1994
5312524 Distillation system for recovery of industrial process liquids May. 17, 1994
5306397 Process and apparatus for the extraction of fresh water from warm seawater Apr. 26, 1994
5236555 Apparatus for concentration of liquids Aug. 17, 1993
5158649 Apparatus for reclaiming waste gas treating chemical Oct. 27, 1992
5102503 Mobile self-contained system for on-site recovery of solvents Apr. 7, 1992
5082525 Method and apparatus for improving the performance of liquid waste evaporators Jan. 21, 1992
5037510 Integrated water distiller and/or water heater and/or furnace Aug. 6, 1991
4981555 Process and apparatus for concentrating a solution Jan. 1, 1991
4963231 Method for evaporation of liquids Oct. 16, 1990
4946558 Water distilling apparatus Aug. 7, 1990
4909899 Method of concentrating sludges Mar. 20, 1990
4894123 High efficiency water distiller Jan. 16, 1990
4880504 Vacumm distillation system with spiralled cold coil Nov. 14, 1989
4872949 Process for treatment of drilling mud Oct. 10, 1989
4863567 Fluid distillation apparatus Sep. 5, 1989
4830710 Apparatus for recycling solvents May. 16, 1989
4828660 Method and apparatus for the continuous on-site chemical reprocessing of ultrapure liquids May. 9, 1989
4826575 Apparatus for production of high-purity water by microwave technology May. 2, 1989

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