Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2007-11-30
2010-10-05
Oh, Taylor Victor (Department: 1625)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S104000
Reexamination Certificate
active
07807601
ABSTRACT:
A catalyst for the oxidation of an alkane, alkene or mixtures thereof. The catalyst includes a mixed-metal oxide having the formula MoaVbNbcTedSbeOfwherein, when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0, e=0.01 to 1.0, and f is dependent upon the oxidation state of the other elements, the catalyst further characterized by having at least two crystal phases, the first crystal phase being an orthorhombic M1 phase and the second crystal phase being a pseudo-hexagonal M2 phase, the orthorhombic M1 phase present in an amount between greater than 60 weight percent to less than 90 weight percent. The catalysts disclosed herein exhibit a chemisorption of NH3of less than about 0.2 mmole per gram of metal oxide.
REFERENCES:
patent: 5380933 (1995-01-01), Ushikubo et al.
patent: 5994580 (1999-11-01), Takahashi et al.
patent: 6642174 (2003-11-01), Gaffney et al.
patent: 6914150 (2005-07-01), Gaffney et al.
patent: 7009075 (2006-03-01), Hazin
patent: 7019169 (2006-03-01), Borgmeier et al.
patent: 2009/0042723 (2009-02-01), Wang et al.
patent: 0529853 (1992-07-01), None
patent: 0 962 253 (1999-08-01), None
patent: 1 090 684 (2001-11-01), None
M. M. Lin, “Selective oxidation of propane to acrylic acid with molecular oxygen” Applied Catalysis A: General 207 (2001) pp. 1-16.
M. M. Lin, “Complex metal-oxide catalysts for selective oxidation of propane and derivatives I. Catalysts preparation and application in propane selective oxidation to acrylic acid” Applied Catalysis A: General 250 (2003) pp. 305-318.
M. M. Lin, “Complex metal oxide catalysts for selective oxidation of propane and derivatives II. The relationship among catalyst preparation, structure and catalytic properties” Applied Catalysis A: General 250 (2003) pp. 287-303.
E. K. Novakova et al., “Propane Oxidation on Mo-V-Sb-Nb Mixed-Oxide Catalysts I. Kinetic and Mechanistic Studies” Journal of Catalysis 211, (2002) pp. 226-234.
E. K. Novakova et al., “Propane Oxidation on Mo-V-Sb-Nb Mixed Oxide Catalysts 2. Influence of Catalyst Activation Methods on the Reaction Mechanism” Journal of Catalysis 211, (2002) pp. 235-243.
J. N. Al-Saeedi et al., “Bulk structure and catalytic properties of mixed Mo-V-Sb-Nb oxides for selective propane oxidation to acrylic acid” Journal of Catalysis 215 (2003) pp. 108-115.
R. K. Grasselli et al., “Active centers in Mo-V-Nb-Te-Ox (amm) oxidation catalysts” Catalysis Today 91-92 (2004) pp. 251-258.
J. M. Oliver et al., Selective oxidation and ammoxidation of propane on a Mo-V-Te-Nb-O mixed metal oxide catalyst: a comparative study, Catalysis Today 96 (2004) pp. 241-249.
Dakka Jihad M.
Lemon Robert C.
Mortier Wilfried J.
Vartuli James C.
Wang Kun
ExxonMobil Research and Engineering Company
Migliorini Robert A.
Oh Taylor Victor
LandOfFree
Mixed metal oxide catalysts and processes for their... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mixed metal oxide catalysts and processes for their..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixed metal oxide catalysts and processes for their... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4202838