Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By isomerization
Reexamination Certificate
2010-03-31
2011-11-15
Dang, Thuan Dinh (Department: 1772)
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By isomerization
C585S482000
Reexamination Certificate
active
08058496
ABSTRACT:
Xylene and ethylbenzene isomerization process is catalyzed by the UZM-35 family of crystalline aluminosilicate zeolites represented by the empirical formula:in-line-formulae description="In-line Formulae" end="lead"?Mmn+Rr+Al(1-x)ExSiyOzin-line-formulae description="In-line Formulae" end="tail"?where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the dimethyldipropylammonium cation and E is a framework element such as gallium. These UZM-35 zeolites are active and selective in the isomerization of xylenes and ethylbenzene.
REFERENCES:
patent: 2620314 (1952-12-01), Hoekstra
patent: 3626020 (1971-12-01), Neuzil
patent: 3696107 (1972-10-01), Neuzil
patent: 4039599 (1977-08-01), Gewartowski
patent: 4184943 (1980-01-01), Anderson
patent: 4381419 (1983-04-01), Wylie
patent: 4402832 (1983-09-01), Gerhold
patent: 4440871 (1984-04-01), Lok et al.
patent: 4910006 (1990-03-01), Zones et al.
patent: 4957891 (1990-09-01), Sachtler et al.
patent: 4963337 (1990-10-01), Zones
patent: 5512267 (1996-04-01), Davis et al.
patent: 6048449 (2000-04-01), Bogdan et al.
patent: 6049018 (2000-04-01), Calabro et al.
patent: 6143941 (2000-11-01), Sharma et al.
patent: 6776975 (2004-08-01), Wilson et al.
patent: 7525008 (2009-04-01), Bogdan et al.
patent: 7578993 (2009-08-01), Lewis et al.
patent: 2009/0318696 (2009-12-01), Strohmaier et al.
patent: 2010/0081775 (2010-04-01), Moscoso
Lobo, Raul F. et al., “CIT-1: A New Molecular Sieve with Intersecting Pores Bounded by 10- and 12-Rings”, J. Am. Chem. Doc. 1995, 117, 3766-3779.
Wright, Paul A. et al., “Synthesis and Structure of a Novel Large-pore Microporous Magnesium-contianing Aluminophosphate (DAF-1)”, J. Chem. Soc., Chem. Commun, 1993.
Muncaster, Gavin et al., “An in Situ Microcrystal X-ray Diffraction Study of Synthetic Aluminophosphate Zeotypes DAF-1 and CoAPSO-44”, Chem. Mater. 1999, 11, 158-163.
Bogdan Paula L.
Jan Deng-Yang
Moscoso Jaime G.
Nicholas Christopher P.
Dang Thuan Dinh
Maas Maryann
UOP LLC
LandOfFree
Process for xylene and ethylbenzene isomerization using UZM-35 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 xylene and ethylbenzene isomerization using UZM-35, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for xylene and ethylbenzene isomerization using UZM-35 will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4275635