 |
|
 |
| |
 |
|
Class Information
Number: 562/413
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carboxylic acids and salts thereof > Aromatic > Formation of carboxyl group by oxidation > Of aromatic compound > Alkyl side chain oxidized > Air, oxygen, or ozone oxidant > Multistage
Description: Processes wherein the oxidation is carried out in plural sequential stages.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615145 |
One-pot process for the reduction of sulfur, nitrogen and the production of useful oxygenates from hydrocarbon materials via one-pot selective oxidation |
Nov. 10, 2009 |
| 7591943 |
Process for the reduction of sulfur, nitrogen and the production of useful oxygenates from hydrocarbon materials via one-pot selective oxidation |
Sep. 22, 2009 |
| 7589231 |
Optimized liquid-phase oxidation |
Sep. 15, 2009 |
| 7586000 |
Optimized liquid-phase oxidation |
Sep. 8, 2009 |
| 7582793 |
Optimized liquid-phase oxidation |
Sep. 1, 2009 |
| 7563926 |
Optimized liquid-phase oxidation |
Jul. 21, 2009 |
| 7557243 |
Enriched terephthalic acid composition |
Jul. 7, 2009 |
| 7550627 |
Processes for producing aromatic dicarboxylic acids |
Jun. 23, 2009 |
| 7534912 |
Process for producing pyromellitic acid |
May. 19, 2009 |
| 7524986 |
Methods for producing aromatic carboxylic acids |
Apr. 28, 2009 |
| 7507857 |
Optimized liquid-phase oxidation |
Mar. 24, 2009 |
| 7504535 |
Optimized liquid-phase oxidation |
Mar. 17, 2009 |
| 7501537 |
Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange |
Mar. 10, 2009 |
| 7498003 |
Optimized liquid-phase oxidation |
Mar. 3, 2009 |
| 7498002 |
Optimized liquid-phase oxidation |
Mar. 3, 2009 |
| 7495125 |
Optimized liquid-phase oxidation |
Feb. 24, 2009 |
| 7491369 |
Oxidation system with internal secondary reactor |
Feb. 17, 2009 |
| 7485746 |
Staged countercurrent oxidation |
Feb. 3, 2009 |
| 7482482 |
Optimized liquid-phase oxidation |
Jan. 27, 2009 |
| 7465824 |
Process for the production of high purity aromatic carboxylic acids using a benzoic acid and water solvent for oxidation and purification |
Dec. 16, 2008 |
| 7399882 |
Optimized liquid-phase oxidation |
Jul. 15, 2008 |
| 7393973 |
Polycarboxylic acid production system with enhanced residence time distribution for oxidative digestion |
Jul. 1, 2008 |
| 7390921 |
Optimized liquid-phase oxidation |
Jun. 24, 2008 |
| 7381836 |
Optimized liquid-phase oxidation |
Jun. 3, 2008 |
| 7378544 |
Anthracene and other polycyclic aromatics as activators in the oxidation of aromatic hydrocarbons |
May. 27, 2008 |
| 7371894 |
Optimized liquid-phase oxidation |
May. 13, 2008 |
| 7371866 |
Preparation of aromatic and heteroaromatic carboxylic acids by catalytic ozonolysis |
May. 13, 2008 |
| 7361784 |
Optimized liquid-phase oxidation |
Apr. 22, 2008 |
| 7358389 |
Oxidation system employing internal structure for enhanced hydrodynamics |
Apr. 15, 2008 |
| 7355068 |
Oxidation system with internal secondary reactor |
Apr. 8, 2008 |
| 7098360 |
Processes employing multiple successive chemical reaction process steps and apparatus therefore |
Aug. 29, 2006 |
| 7060853 |
Method for increasing oxidation reactor production capacity |
Jun. 13, 2006 |
| 7049465 |
Process for energy recovery in processes for the preparation of aromatic carboxylic acids |
May. 23, 2006 |
| 6949673 |
Process for producing carboxylic acids |
Sep. 27, 2005 |
| 6852879 |
Method of removing iron oxide deposits from the surface of titanium components |
Feb. 8, 2005 |
| 6835852 |
Process for producing trimellitic acid |
Dec. 28, 2004 |
| 6765113 |
Production of aromatic carboxylic acids |
Jul. 20, 2004 |
| 6562996 |
Alkyl aromatic aldehydes |
May. 13, 2003 |
| 6562997 |
Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent |
May. 13, 2003 |
| 6521786 |
Process for the production of aromatic acids |
Feb. 18, 2003 |
| 6504051 |
Process for production of aromatic carboxylic acids with improved water removal technique |
Jan. 7, 2003 |
| 6500347 |
Process for recovering crystals from a slurry |
Dec. 31, 2002 |
| 6476257 |
Method for preparing aromatic carboxylic acids from alkylaromatics by liquid-phase oxidation |
Nov. 5, 2002 |
| 6194607 |
Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic hydrocarbons or partially oxidized intermediates thereof |
Feb. 27, 2001 |
| 6180822 |
Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with carbon dioxide containing gas |
Jan. 30, 2001 |
| 6175038 |
Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with oxygen-enriched gas |
Jan. 16, 2001 |
| 6160170 |
Process for the production of aromatic acids |
Dec. 12, 2000 |
| 6137001 |
Process for preparing aromatic carboxylic acids with efficient treatments of gaseous effluent |
Oct. 24, 2000 |
| 6133470 |
Integration of p-xylene production and subsequent conversion process |
Oct. 17, 2000 |
| 6129875 |
Process of separating catalyst from oxidation mixtures |
Oct. 10, 2000 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
