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Class Information
Number: 203/17
Name: Distillation: processes, separatory > Distilling to separate or remove only water > From organic compound > Aldehyde or ketone
Description: Processes in which the organic substance is an aldehyde or a ketone.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7601245 |
Process for reducing the aldehyde concentration in a mixture comprising cyclohexanone and one or more aldehydes |
Oct. 13, 2009 |
| 7531066 |
Method for the purification of acrolein |
May. 12, 2009 |
| 7435318 |
Ionic liquids as selective additives for separation of close-boiling or azeotropic mixtures |
Oct. 14, 2008 |
| 7338579 |
Dewatering process |
Mar. 4, 2008 |
| 6955743 |
Method for producing furfural, acetic acid and formic acid from spent pulp-cooking liquor |
Oct. 18, 2005 |
| 6946060 |
Purification of N,N-dimethylacetamide |
Sep. 20, 2005 |
| 6833057 |
Pure ethylene oxide distillation process |
Dec. 21, 2004 |
| 6737557 |
Hydrocarbon upgrading process |
May. 18, 2004 |
| 6478929 |
Dewatering process |
Nov. 12, 2002 |
| 6379507 |
Process for producing methylal |
Apr. 30, 2002 |
| 5788818 |
Process for the purification of acetone |
Aug. 4, 1998 |
| 5695615 |
Purification process for cyclic formulas |
Dec. 9, 1997 |
| 5690793 |
Purification process for cyclic formals |
Nov. 25, 1997 |
| 5667644 |
Method for producing a dimerized aldehyde |
Sep. 16, 1997 |
| 5603813 |
Purifying distillation of vinyl formate |
Feb. 18, 1997 |
| 5558747 |
Process for azeotropic distillation of aqueous chloral mixtures |
Sep. 24, 1996 |
| 5456805 |
Purification process for cyclic formals |
Oct. 10, 1995 |
| 5447620 |
Method of dehydrating the solvent resulting from a process step of dewaxing hydrocarbons |
Sep. 5, 1995 |
| 5059327 |
Cross-linked separation membrane and process for pervaporation |
Oct. 22, 1991 |
| 4978430 |
Method for dehydration and concentration of aqueous solution containing organic compound |
Dec. 18, 1990 |
| 4952318 |
Separations of oxygenates |
Aug. 28, 1990 |
| 4946561 |
Process for obtaining trioxane from aqueous solutions by high-pressure extraction |
Aug. 7, 1990 |
| 4875980 |
Method for separating and concentrating an organic component from an aqueous solution containing same |
Oct. 24, 1989 |
| 4577043 |
Process for the preparation of aldehydes |
Mar. 18, 1986 |
| 4559110 |
Acetophenone recovery and purification |
Dec. 17, 1985 |
| 4493752 |
Process for recovering trioxane by plural distillation |
Jan. 15, 1985 |
| 4401514 |
Method for the recovery of furfural, acetic acid and formic acid |
Aug. 30, 1983 |
| 4349415 |
Process for separating organic liquid solutes from their solvent mixtures |
Sep. 14, 1982 |
| 4186059 |
Dehydration of solvent used in oil dewaxing-deoiling processes |
Jan. 29, 1980 |
| 4000044 |
Fractionation of immiscible liquids of equal density |
Dec. 28, 1976 |
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