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Class Information
Number: 203/60
Name: Distillation: processes, separatory > Adding material to distilland except water or steam per se > Organic compound > Ester
Description: Processes in which the organic compound is an ester.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7338579 |
Dewatering process |
Mar. 4, 2008 |
| 7311807 |
Process for the separation of mixtures containing m-and p-dichlorobenzene |
Dec. 25, 2007 |
| 7306705 |
Method for dehydrating composition comprising lithium bis(pentafluoroethanesulfonyl)imide |
Dec. 11, 2007 |
| 7241365 |
Material for a facility for the production of anhydrous formic acid |
Jul. 10, 2007 |
| 7141641 |
Method and apparatus for production of alkyl aryl ether and diaryl carbonate |
Nov. 28, 2006 |
| 7048835 |
System and method for acetic acid recovery during terephthalic acid production |
May. 23, 2006 |
| 7037412 |
Method for preparing deodorized N-vinyl-2-pyrrolidone |
May. 2, 2006 |
| 6787001 |
Method for distilling (meth) acrylic acid solution |
Sep. 7, 2004 |
| 6673959 |
Preparation of carboxylic esters catalyzed by a sulphonic acid |
Jan. 6, 2004 |
| 6582565 |
Recovery of 3,4-epoxy-1-butene by extractive distillation |
Jun. 24, 2003 |
| 6494996 |
Process for removing water from aqueous methanol |
Dec. 17, 2002 |
| 6478929 |
Dewatering process |
Nov. 12, 2002 |
| 6465665 |
High efficiency process for the recovery of the high pure sterols |
Oct. 15, 2002 |
| 6461481 |
Process for removing water from organoborane compounds |
Oct. 8, 2002 |
| 6444096 |
Process for the recovery and purification of cyclobutanone |
Sep. 3, 2002 |
| 6395141 |
Separation of components from aromatic hydrocarbon mixtures thereof by extractive distillation |
May. 28, 2002 |
| 6391161 |
Method for reducing the chlorine content of low molecular weight isocyanates |
May. 21, 2002 |
| 6315868 |
Method of separating dimethyl carbonate and methanol |
Nov. 13, 2001 |
| 6207022 |
Purification of crude (meth) acrylic acid |
Mar. 27, 2001 |
| 6191285 |
Process for the preparation of ketorolac tromethamine |
Feb. 20, 2001 |
| 6179967 |
Purification process of pentrafluoroethane |
Jan. 30, 2001 |
| 6139693 |
Method for obtaining hexamethylene diamine from mixtures containing hexamethylene diamine |
Oct. 31, 2000 |
| 6136155 |
Separation of mesitylene from 1,2,4-trimetyhlbenzene by azeotropic distillation |
Oct. 24, 2000 |
| 6042697 |
Separation of 9,11-Diene C18 fatty acid from 10,12-Diene C18 fatty acid by azeotropic distillation |
Mar. 28, 2000 |
| 6039846 |
Separation of 3-methyl-2-pentenal from n-butanol by azeotropic distillation |
Mar. 21, 2000 |
| 6033529 |
Separation of mesitylene from 4-ethyl toluene by azeotropic distillation |
Mar. 7, 2000 |
| 6024841 |
Separation of 2-methyl-1-butanol and 3-methyl-1-butanol from 1-pentanol by extractive distillation |
Feb. 15, 2000 |
| 6017423 |
Separation of 3-methyl-2-pentenal from N-butanol by extractive distillation |
Jan. 25, 2000 |
| 6004435 |
Separation of cumene from 3-ethyl toluene by azeotropic distillation |
Dec. 21, 1999 |
| 5993610 |
Separation of ethyl acetate from ethanol by azeotropic distillation |
Nov. 30, 1999 |
| 5980696 |
Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid |
Nov. 9, 1999 |
| 5972172 |
Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene by extractive distillation |
Oct. 26, 1999 |
| 5972173 |
Allyl alcohol purification |
Oct. 26, 1999 |
| 5961789 |
Separation of t-amyl alcohol from n-butanol by extractive distillation |
Oct. 5, 1999 |
| 5951828 |
Continuous distillation of thermolabile monomers |
Sep. 14, 1999 |
| 5928478 |
Separation of linoleic acid from linolenic acid by azeotropic distillation |
Jul. 27, 1999 |
| 5908538 |
Separation of T-amyl alcohol from 2- methyl-1 -propanol azeotropic distillation |
Jun. 1, 1999 |
| 5904815 |
Separation of t-amyl alcohol from n-butanol by azeotropic distillation |
May. 18, 1999 |
| 5900125 |
Continuous preparation of alkyl esters of (meth)acrylic acid and apparatus for this purpose |
May. 4, 1999 |
| 5897750 |
Separation of acetone from isopropanol-water mixtures by extractive distillation |
Apr. 27, 1999 |
| 5882485 |
Process for the separation of dimethyl ether and chloromethane in mixtures |
Mar. 16, 1999 |
| 5879517 |
Method for separating 2-butanol from t-amyl alcohol using certain organic compounds as the agent in extractive distillation |
Mar. 9, 1999 |
| 5876569 |
Separation of methyl ethyl ketone from ethanol by extractive distillation |
Mar. 2, 1999 |
| 5868907 |
Separation of methyl ethyl ketone from ethanol by azeotropic distillation |
Feb. 9, 1999 |
| 5869700 |
Method for recovering phthalic anhydride/maleic anhydride mixtures by distillation |
Feb. 9, 1999 |
| 5866714 |
Ester preparation |
Feb. 2, 1999 |
| 5851362 |
Separation of 4-methyl-2-pentanol from 3-methyl-1-butanol by extractive distillation |
Dec. 22, 1998 |
| 5849982 |
Recovery of styrene from pyrolysis gasoline by extractive distillation |
Dec. 15, 1998 |
| 5840160 |
Separation of 3-carene from limonene by extractive distillation |
Nov. 24, 1998 |
| 5804040 |
Purification process for silane compound |
Sep. 8, 1998 |
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