| Patent Number |
Title Of Patent |
Date Issued |
| 7470370 |
Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration |
Dec. 30, 2008 |
| 7282151 |
Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration |
Oct. 16, 2007 |
| 7132582 |
Catalytic process for the preparation of isolongifolene |
Nov. 7, 2006 |
| 7115537 |
Process for the regeneration of zeolite catalysts |
Oct. 3, 2006 |
| 7087546 |
Process for regenerating and rejuvenating additive-based catalysts |
Aug. 8, 2006 |
| 6878471 |
Process for the regeneration of reforming catalysts |
Apr. 12, 2005 |
| 6878654 |
Reactivation of aromatics alkylation catalysts |
Apr. 12, 2005 |
| 6872859 |
Process for the preparation of bisphenols with zeolites |
Mar. 29, 2005 |
| 6872678 |
Process for activating a catalyst containing an S-containing additive |
Mar. 29, 2005 |
| 6683015 |
Method for reactivating a catalyst composition |
Jan. 27, 2004 |
| 6680270 |
Regeneration of catalysts used in the manufacture of bisphenols |
Jan. 20, 2004 |
| 6635595 |
Process for simultaneous alkyl esterification of oil and regeneration of spent oil purification medium |
Oct. 21, 2003 |
| 6558533 |
Process for sulfur removal from hydrocarbon liquids |
May. 6, 2003 |
| 6521564 |
Modification of a hydrogenation catalyst |
Feb. 18, 2003 |
| 6498120 |
Rejuvenating SAPO molecular sieve with anhydrous liquid or vapor |
Dec. 24, 2002 |
| 6482762 |
NOx conversion catalyst rejuvenation process |
Nov. 19, 2002 |
| 6423657 |
Process for the reactivation of activated carbon |
Jul. 23, 2002 |
| 6365761 |
Process for preparing alkylene oxide |
Apr. 2, 2002 |
| 6281157 |
Self-catalytic bath and method for the deposition of a nickel-phosphorus alloy on a substrate |
Aug. 28, 2001 |
| 6162753 |
Process for recovering cobalt carbonyl catalysts used to produced N-acyl-alpha-amino acid derivatives by amidocarbonylation |
Dec. 19, 2000 |
| 6162558 |
Method and apparatus for selective removal of carbon monoxide |
Dec. 19, 2000 |
| 6077807 |
Method of treating spontaneously combustible catalysts |
Jun. 20, 2000 |
| 6077803 |
Process for off-site preconditioning of a hydrocarbon processing catalyst |
Jun. 20, 2000 |
| 6071843 |
Process for reactivating catalyst systems containing a platinum group metal |
Jun. 6, 2000 |
| 6046124 |
Process for performing a swing bed regeneration operation with minimal downstream upsets |
Apr. 4, 2000 |
| 6013593 |
Wet recycling process for impregnated active carbon by extraction with organic solvent |
Jan. 11, 2000 |
| 6001762 |
Reactivation of perfluorinated ion-exchange microcomposite catalysts |
Dec. 14, 1999 |
| 5990037 |
Method of treating spontaneously combustible catalysts |
Nov. 23, 1999 |
| 5965472 |
Recovery of catalyst systems from diaryl carbonate-containing reaction solutions by suspension crystallization |
Oct. 12, 1999 |
| 5935890 |
Stable dispersions of metal passivation agents and methods for making them |
Aug. 10, 1999 |
| 5916835 |
Heterogeneous catalyst regeneration |
Jun. 29, 1999 |
| 5906953 |
Catalyst rejuvenation process |
May. 25, 1999 |
| 5888919 |
Process for zeolitic catalyst reactivation |
Mar. 30, 1999 |
| 5851944 |
Process for performing a swing bed regeneration operation with minimal downstream upsets |
Dec. 22, 1998 |
| 5756413 |
Process for recovering cobalt carbonyl catalysts used in the preparation of N-acyl-.alpha.-amino acid derivates by amidocarbonylation |
May. 26, 1998 |
| 5728639 |
Recovery of spent catalyst |
Mar. 17, 1998 |
| 5716895 |
Process for regeneration of catalysts |
Feb. 10, 1998 |
| 5714651 |
Use of polymerization inhibitor to prolong the life of a Lewis acid catalyst |
Feb. 3, 1998 |
| 5695634 |
Process for catalytic treatment of waste water as well as a process for regenerating a catalyst |
Dec. 9, 1997 |
| 5681787 |
Method of treating spontaneously combustible catalysts |
Oct. 28, 1997 |
| 5674797 |
Method for regenerating a hydrogenation catalyst |
Oct. 7, 1997 |
| 5625114 |
Process for the recovery of spent acid catalyst |
Apr. 29, 1997 |
| 5620936 |
Recovery of spent catalyst |
Apr. 15, 1997 |
| 5472921 |
Process for the recovery of spent fluorinated sulphonic acid catalyst in an alkylation process |
Dec. 5, 1995 |
| 5468701 |
Process for regenerating spent acid-activated bentonite clays and smectite catalysts |
Nov. 21, 1995 |
| 5397756 |
Process for the presulphurization of hydrocarbon treatment catalysts |
Mar. 14, 1995 |
| 5389592 |
Method of enhancing the activity of regenerated catalysts |
Feb. 14, 1995 |
| 5358915 |
Process for regenerating spent acid-activated bentonite clays and smectite catalysts |
Oct. 25, 1994 |
| 5326923 |
Method for regenerating certain acidic hydrocarbon conversion catalysts by solvent extraction |
Jul. 5, 1994 |
| 5314851 |
Reactivation of solid oxidation catalysts |
May. 24, 1994 |
