Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2004-04-30
2009-06-30
Caldarola, Glenn (Department: 1797)
Mineral oils: processes and products
Refining
Sulfur removal
C208S237000, C208S262100, C585S001000, C585S860000, C585S864000, C585S865000, C585S867000
Reexamination Certificate
active
07553406
ABSTRACT:
This invention relates to a process for removing polarizable impurities from hydrocarbons and mixtures of hydrocarbons using ionic liquids as an extraction medium. By way of extraction, the degree of contamination of the hydrocarbon or mixture of hydrocarbons is reduced to a low or very low level. The specific ionic liquids are compounds of the Formula 1, which are organic salts that are liquid or can be melted to form a liquid and that can form at least a biphasic mixture with a hydrocarbon. The process is suitable for purifying a wide range of hydrocarbons under a wide range of process conditions.
REFERENCES:
patent: 5057207 (1991-10-01), Basler
patent: 5494572 (1996-02-01), Horii et al.
patent: 5744024 (1998-04-01), Sullivan et al.
patent: 6274026 (2001-08-01), Schucker et al.
patent: 6319428 (2001-11-01), Michot et al.
patent: 7001504 (2006-02-01), Schoonover
patent: 2003/0085156 (2003-05-01), Schoonover
patent: 767 891 (1954-07-01), None
patent: WO 01/40150 (2001-06-01), None
patent: WO 01/55060 (2001-08-01), None
Bössman et al. (“Deep desulfurization of diesel fuel by extraction with ionic liquids”, Chem. Commun. (2001), 2494-2495).
Bösmann Andreas
Datsevich Leonid
Jess Andreas
Schmitz Christoph
Wasserscheid Peter
Boyer Randy
Caldarola Glenn
Innovar L.L.C.
Matos Rick
Merck Patent GmbH
LandOfFree
Process for removing polar impurities from hydrocarbons and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for removing polar impurities from hydrocarbons and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing polar impurities from hydrocarbons and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4097002