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Class Information
Number: 203/64
Name: Distillation: processes, separatory > Adding material to distilland except water or steam per se > Organic compound > Alcohol or ether > Polyhydroxy alcohol or ether derivative thereof
Description: Processes in which the compound is polyhydroxy alcohol or an ether derivative thereof.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7332070 |
Method of preventing heat exchanger fouling |
Feb. 19, 2008 |
| 7285187 |
Method of purifying propylene oxide |
Oct. 23, 2007 |
| 7182841 |
Purification of solvents used for the purification of alkylene oxide |
Feb. 27, 2007 |
| 7153397 |
Process for the purification of fluoromethyl hexafluoroisopropyl ether |
Dec. 26, 2006 |
| 7141641 |
Method and apparatus for production of alkyl aryl ether and diaryl carbonate |
Nov. 28, 2006 |
| 7128815 |
Process for recovery of pure acrylonitrile |
Oct. 31, 2006 |
| 7049450 |
Process for the purification of crude propene oxide |
May. 23, 2006 |
| 6955744 |
Method for purifying 2-chloro-5-chloromethylthiazole |
Oct. 18, 2005 |
| 6863779 |
Distillation of styrene |
Mar. 8, 2005 |
| 6632330 |
Process for purification of alkyl alkanoate |
Oct. 14, 2003 |
| 6613197 |
Method for isolation of barely volatile organic compounds |
Sep. 2, 2003 |
| 6582565 |
Recovery of 3,4-epoxy-1-butene by extractive distillation |
Jun. 24, 2003 |
| 6444096 |
Process for the recovery and purification of cyclobutanone |
Sep. 3, 2002 |
| 6359155 |
Process for the preparation of 3-hydroxytetrahydrofuran |
Mar. 19, 2002 |
| 6315868 |
Method of separating dimethyl carbonate and methanol |
Nov. 13, 2001 |
| 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 |
| 6024840 |
Propylene oxide purification |
Feb. 15, 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 |
| 6004434 |
Method of recycling cleaning solvent |
Dec. 21, 1999 |
| 5972172 |
Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene by extractive distillation |
Oct. 26, 1999 |
| 5961789 |
Separation of t-amyl alcohol from n-butanol by extractive distillation |
Oct. 5, 1999 |
| 5958192 |
Purification of propylene oxide using ethylene glycol monomethyl ether as an extractive distillation agent |
Sep. 28, 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 |
| 5876570 |
Purification process for cyclic formals |
Mar. 2, 1999 |
| 5876569 |
Separation of methyl ethyl ketone from ethanol by extractive distillation |
Mar. 2, 1999 |
| 5863391 |
Purification of a methanol stream |
Jan. 26, 1999 |
| 5840160 |
Separation of 3-carene from limonene by extractive distillation |
Nov. 24, 1998 |
| 5830325 |
Separating and removing 1, 1, 1-trifluoroethane by using azeotropic distillation |
Nov. 3, 1998 |
| 5830324 |
Controlled continuous purification of propylene oxide by extractive distillation |
Nov. 3, 1998 |
| 5800681 |
Separation of ethanol, isopropanol and water mixtures by extractive distillation |
Sep. 1, 1998 |
| 5795447 |
Separation of 2-butanol from isobutanol by extractive distillation |
Aug. 18, 1998 |
| 5788818 |
Process for the purification of acetone |
Aug. 4, 1998 |
| 5789629 |
Separating 3-methyl-1-butanol from 1-pentanol using certain organic compounds as the agent in extractive distillation |
Aug. 4, 1998 |
| 5772854 |
Use of paired reboilers in the purification of propylene oxide by extractive distillation |
Jun. 30, 1998 |
| 5772853 |
Separation of 1-propanol from t-amyl alcohol by extractive distillation |
Jun. 30, 1998 |
| 5750009 |
Method for purifying natural cresylic acid mixtures |
May. 12, 1998 |
| 5723024 |
Separation of 2-methyl-1-propanol from 1-butanol by extractive distillation |
Mar. 3, 1998 |
| 5720857 |
Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene by azeotropic distillation |
Feb. 24, 1998 |
| 5718809 |
Separation of t-amyl alcohol from 2-methyl-1-propanol by extractive distillation |
Feb. 17, 1998 |
| 5705038 |
Separation of phellandrene from limonene by extractive distillation |
Jan. 6, 1998 |
| 5695615 |
Purification process for cyclic formulas |
Dec. 9, 1997 |
| 5693193 |
Process for recovering propylene oxide |
Dec. 2, 1997 |
| 5693194 |
Separation of butyraldehyde from ethanol by extractive distillation |
Dec. 2, 1997 |
| 5690793 |
Purification process for cyclic formals |
Nov. 25, 1997 |
| 5683555 |
Working up reaction mixtures obtained in addition reactions with acetylene or propyne |
Nov. 4, 1997 |
| 5679223 |
Method for separating and purifying catechol mixtures |
Oct. 21, 1997 |
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