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Class Information
Number: 159/49
Name: Concentrating evaporators > Processes > Film
Description: Processes in which the liquid to be concentrated is spread in the form of a film or thin layer for evaporation.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8603301 Method for reduction of contaminants in evaporator distillate Dec. 10, 2013
8591705 Multi-effect evaporator Nov. 26, 2013
8584374 Method for removing water from a mixture Nov. 19, 2013
8486223 Falling film evaporator Jul. 16, 2013
8404086 Purification of hydroformylated and hydrogenated fatty alkyl ester compositions Mar. 26, 2013
8252148 Containment extension and processing method Aug. 28, 2012
8192589 Purification of aqueous solutions of organic acids Jun. 5, 2012
8092656 Method and apparatus for high efficiency evaporation operation Jan. 10, 2012
7998309 One-step method for the production of nanofluids Aug. 16, 2011
7998317 Glycerol (medical grade) preparation method using a by-product of a bio-diesel process Aug. 16, 2011
7964059 Large volume reactor or thin film evaporator with a premixing unit Jun. 21, 2011
7959768 Partial load enabled falling film evaporator and method for operating a partial load Jun. 14, 2011
7955476 Multiple application purification and recycling device Jun. 7, 2011
7879197 Purification of aqueous solutions of organic acids Feb. 1, 2011
7799178 Distillation process Sep. 21, 2010
7785448 Method and apparatus for phase change enhancement Aug. 31, 2010
7722740 Method for obtaining a gaseous phase from a liquid medium and device for carrying out the same May. 25, 2010
7718033 One-step method for the production of nanofluids May. 18, 2010
7670456 Method and device for treating water Mar. 2, 2010
7666281 Method and device for treating water Feb. 23, 2010
7611604 Method and device for the production of purified steam Nov. 3, 2009
7594980 Device and method for distillation Sep. 29, 2009
7540944 Saline/sewage water reclamation system Jun. 2, 2009
7410556 Purification of aqueous solutions of organic acids Aug. 12, 2008
7332085 Method for the purification of an .alpha.-hydroxy acid on an industrial scale Feb. 19, 2008
7316781 Pseudo-distillation method for purifying a dry cleaning solvent Jan. 8, 2008
7300538 Spinning disk evaporator Nov. 27, 2007
6998026 Method for producing tertiary C.sub.4-C.sub.8-alkyl esters of (meth)acrylic acid Feb. 14, 2006
6911121 Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas Jun. 28, 2005
6887345 Process and device for evaporating liquids, for example black liquor from cellulose cooking, which contain solid and dissolved substances May. 3, 2005
6887346 Spinning disk evaporator May. 3, 2005
6860966 Method for isolating polyphenylene ether polymer resins from solution Mar. 1, 2005
6837969 Method for the concentration of liquid mixtures Jan. 4, 2005
6830654 Method and device for treating water for evaporation Dec. 14, 2004
6780288 Process for the manufacture of concentrated solutions Aug. 24, 2004
6746567 Microstructured surface film assembly for liquid acquisition and transport Jun. 8, 2004
6656327 Method and device for the production of pure steam Dec. 2, 2003
6638398 Methods for the evaporation of an aqueous solution containing ammonia Oct. 28, 2003
6635150 Method for distilling a fluid with horizontal vapor transfer into a condensation zone and modular device for implementing said method Oct. 21, 2003
6627047 Method for preventing polymerization in thin-film type evaporating device Sep. 30, 2003
6623546 Method and installation for chemical purification of vapor in a dehydrator with mechanical vapor compression Sep. 23, 2003
6596244 Falling film reactor with corrugated plates Jul. 22, 2003
6506281 Method for isolating polymers from solutions Jan. 14, 2003
6340414 Process for the recovery of perfluorinated sulphonic acids from spent acid Jan. 22, 2002
6336997 Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation Jan. 8, 2002
6309508 Spinning disk evaporator Oct. 30, 2001
6258206 Process for purifying condensate while evaporating waste liquors Jul. 10, 2001
6166232 Process for producing ester quats Dec. 26, 2000
6156160 Alkylene carbonate process Dec. 5, 2000
6150498 Polymer recovery Nov. 21, 2000

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