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Class Information
Number: 203/49
Name: Distillation: processes, separatory > Convective distillation with normally gaseous medium, e.g., air
Description: Processes directed to passing through the material being distilled a normally gaseous substance.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7527711 |
Process and structure for superaccelerating nature, producing a continuous supply of fresh water from salt water by using solar, wind, and wave energy |
May. 5, 2009 |
| 7504005 |
Fluid distillation apparatus having improved efficiency |
Mar. 17, 2009 |
| 7501046 |
Solar distillation loop evaporation sleeve |
Mar. 10, 2009 |
| 7485208 |
Recycling of ionic liquids produced in extractive distillation |
Feb. 3, 2009 |
| 7465376 |
Method and device for treating liquids |
Dec. 16, 2008 |
| 7462263 |
Method for purifying hydrocyanic acid |
Dec. 9, 2008 |
| 7435318 |
Ionic liquids as selective additives for separation of close-boiling or azeotropic mixtures |
Oct. 14, 2008 |
| 7431805 |
Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures |
Oct. 7, 2008 |
| 7425247 |
Method for producing an aqueous solution hydroxylamine |
Sep. 16, 2008 |
| 7357849 |
Method and system for separating solids from liquids |
Apr. 15, 2008 |
| 7351310 |
Rectificative separation of fluids comprising (meth) acrylic monomers |
Apr. 1, 2008 |
| 7347918 |
Energy efficient evaporation system |
Mar. 25, 2008 |
| 7300555 |
Method for the rectifying separation of liquids containing (meth)acrylic monomers in a rectification column |
Nov. 27, 2007 |
| 7294240 |
Method for producing (meth)acrylic acid esters |
Nov. 13, 2007 |
| 7147757 |
Method for separating an azepine derivative out of a mixture containing an amine an azepine derivative |
Dec. 12, 2006 |
| 7128813 |
Process for manufacturing high purity methacrylic acid |
Oct. 31, 2006 |
| 7125475 |
Nitrosophenols and C-nitrosoanilines as polymerization inhibitors |
Oct. 24, 2006 |
| 7060865 |
Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons |
Jun. 13, 2006 |
| 7029556 |
Method for purifying (meth)acrylic monomers by distillation |
Apr. 18, 2006 |
| 6911121 |
Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas |
Jun. 28, 2005 |
| 6863779 |
Distillation of styrene |
Mar. 8, 2005 |
| 6821394 |
Process of extracting from haw-pit by dry distillation and its device |
Nov. 23, 2004 |
| 6787001 |
Method for distilling (meth) acrylic acid solution |
Sep. 7, 2004 |
| 6699369 |
Apparatus and method for thermal desalination based on pressurized formation and evaporation of droplets |
Mar. 2, 2004 |
| 6676808 |
Method for starting up distilling column |
Jan. 13, 2004 |
| 6641700 |
Purifying apparatus possessing vapor dispersing device |
Nov. 4, 2003 |
| 6627047 |
Method for preventing polymerization in thin-film type evaporating device |
Sep. 30, 2003 |
| 6613196 |
Method for stopping purifying column |
Sep. 2, 2003 |
| 6585862 |
Apparatus and method for handling easily polymerizable compound |
Jul. 1, 2003 |
| 6565715 |
Land-based desalination using buoyant hydrate |
May. 20, 2003 |
| 6540881 |
Method for refining (meth)acrylic acid |
Apr. 1, 2003 |
| 6494996 |
Process for removing water from aqueous methanol |
Dec. 17, 2002 |
| 6494995 |
Solar distillation system |
Dec. 17, 2002 |
| 6468389 |
Undulating membrane surface for evaporative processes |
Oct. 22, 2002 |
| 6458249 |
Process for purifying perfluorinated products |
Oct. 1, 2002 |
| 6444096 |
Process for the recovery and purification of cyclobutanone |
Sep. 3, 2002 |
| 6440275 |
Solar stills for producing fresh water |
Aug. 27, 2002 |
| 6436245 |
Apparatus for the purification of organic compounds containing readily-blocking substances and process thereof |
Aug. 20, 2002 |
| 6432276 |
Method to separate ethanol from a solution containing sulfuric acid and ethanol |
Aug. 13, 2002 |
| 6413379 |
Continuous recovery of (meth)acrylic acid |
Jul. 2, 2002 |
| 6409888 |
Method and apparatus for water degasification and distillation |
Jun. 25, 2002 |
| 6409886 |
Process for inhibiting the polymerization of easily-polymerizable compounds |
Jun. 25, 2002 |
| 6398919 |
Extraction apparatus and method |
Jun. 4, 2002 |
| 6395140 |
Method for producing (meth)acrylic acid |
May. 28, 2002 |
| 6391162 |
Desalination apparatus and method of operating the same |
May. 21, 2002 |
| 6383342 |
Cluster rule compliance with reduced steam consumption |
May. 7, 2002 |
| 6358373 |
Production of polyamides by reactive distillation |
Mar. 19, 2002 |
| 6348137 |
Method and apparatus for fractional distillation |
Feb. 19, 2002 |
| 6348135 |
Process for the purification of (meth) acrylic acid and/or its ester |
Feb. 19, 2002 |
| 6340414 |
Process for the recovery of perfluorinated sulphonic acids from spent acid |
Jan. 22, 2002 |
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