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Class Information
Number: 203/14
Name: Distillation: processes, separatory > Distilling to separate or remove only water > From organic compound
Description: Processes for separating water from an organic compound.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615137 |
Process for recovering caprolactam from aqueous caprolactam product using in situ prepared alkali amino caproate |
Nov. 10, 2009 |
| 7575660 |
Process for the distillative separation of aqueous amine solutions |
Aug. 18, 2009 |
| 7553397 |
Process |
Jun. 30, 2009 |
| 7435317 |
Desalination of ocean water |
Oct. 14, 2008 |
| 7435318 |
Ionic liquids as selective additives for separation of close-boiling or azeotropic mixtures |
Oct. 14, 2008 |
| 7416644 |
Method and device for stripping ammonia from liquids |
Aug. 26, 2008 |
| 7410556 |
Purification of aqueous solutions of organic acids |
Aug. 12, 2008 |
| 7384501 |
Method for improved turpentine recovery from modern cooking plants |
Jun. 10, 2008 |
| 7384518 |
Method for purifying lactams |
Jun. 10, 2008 |
| 7351311 |
Method for purifying tetrahydrofuran by distillation |
Apr. 1, 2008 |
| 7306705 |
Method for dehydrating composition comprising lithium bis(pentafluoroethanesulfonyl)imide |
Dec. 11, 2007 |
| H2194 |
Purification of phenols |
Jul. 3, 2007 |
| 7217343 |
Point of use water purification method and apparatus |
May. 15, 2007 |
| 7214294 |
Azeotrope-like compositions of pentafluoropropane and water |
May. 8, 2007 |
| 7163606 |
Process for recovering methylene chloride |
Jan. 16, 2007 |
| 7108771 |
Method for removal of impurities in cyclic siloxanes useful as precursors for low dielectric constant thin films |
Sep. 19, 2006 |
| 7105078 |
Method for producing an aqueous hydroxylamine solution devoid of salt |
Sep. 12, 2006 |
| 7060865 |
Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons |
Jun. 13, 2006 |
| 6986833 |
Process for fractionating water-containing crude amine mixtures from amine synthesis |
Jan. 17, 2006 |
| 6984293 |
Azeotropic distillation of cyclic esters of hydroxy organic acids |
Jan. 10, 2006 |
| 6962967 |
Method of purifying polyether polyols of non-volatile impurities |
Nov. 8, 2005 |
| 6942762 |
Method for the production of a salt-free aqueous hydroxylamine solution |
Sep. 13, 2005 |
| 6913674 |
Process for fractionating water-containing crude amine mixtures from amine synthesis |
Jul. 5, 2005 |
| 6860971 |
Process for recovery of olefinically unsaturated nitriles |
Mar. 1, 2005 |
| 6849162 |
Method for the production of propylene oxide |
Feb. 1, 2005 |
| 6849161 |
Process for the production of anhydrous hydrazine and device for its implementation |
Feb. 1, 2005 |
| 6833057 |
Pure ethylene oxide distillation process |
Dec. 21, 2004 |
| 6821382 |
Method and arrangement for cleaning contaminated condensate including a combined stripper/condenser |
Nov. 23, 2004 |
| 6821396 |
Process for fractionating water-containing crude amine mixtures from amine synthesis |
Nov. 23, 2004 |
| 6793777 |
Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid |
Sep. 21, 2004 |
| 6733637 |
Process for producing ultra-high purity isopropanol |
May. 11, 2004 |
| 6692616 |
Method for purifying trimethylolpropane, which is produced by hydrogenation, by means of continuous distillation |
Feb. 17, 2004 |
| 6660169 |
Method and apparatus for reclaiming deicer from produced water of an oil well |
Dec. 9, 2003 |
| 6635151 |
Lactam dehydration method |
Oct. 21, 2003 |
| 6500310 |
Process for the treatment of waste water |
Dec. 31, 2002 |
| 6494996 |
Process for removing water from aqueous methanol |
Dec. 17, 2002 |
| 6461481 |
Process for removing water from organoborane compounds |
Oct. 8, 2002 |
| 6436243 |
Process for recovering N-vinyl-2-pyrrolidone |
Aug. 20, 2002 |
| 6433194 |
Separation of trioxane from liquid mixtures |
Aug. 13, 2002 |
| 6423189 |
Process for the preparation of 1,3-dichloropropane |
Jul. 23, 2002 |
| 6379507 |
Process for producing methylal |
Apr. 30, 2002 |
| 6375804 |
Tertiary butyl acetate recovery |
Apr. 23, 2002 |
| 6364996 |
Device for treatment and removal of aqueous liquids by controlled atmospheric action |
Apr. 2, 2002 |
| 6346172 |
Process for producing difluoromethane |
Feb. 12, 2002 |
| 6299734 |
Preparation of an aqueous solution of free hydroxylamine |
Oct. 9, 2001 |
| 6290820 |
Apparatus and method for concentrating a dilute solution |
Sep. 18, 2001 |
| 6214172 |
Preparation of methylglyoxal dimethyl acetal |
Apr. 10, 2001 |
| 6179966 |
Method for producing acrylic acid |
Jan. 30, 2001 |
| 6123812 |
Process for distilling ethylene oxide |
Sep. 26, 2000 |
| 6120651 |
Method for removing water from an aqueous fluid mixture |
Sep. 19, 2000 |
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