Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2005-07-05
2005-07-05
Sample, David (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S208000, C568S399000, C585S467000, C528S010000
Reexamination Certificate
active
06914029
ABSTRACT:
An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. C3and C4hydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.
REFERENCES:
patent: 4419270 (1983-12-01), Ueshima et al.
patent: 5191116 (1993-03-01), Yamamatsu et al.
patent: 5380933 (1995-01-01), Ushikubo et al.
patent: 5548052 (1996-08-01), Katsoulis et al.
patent: 5817881 (1998-10-01), Ellis et al.
patent: 5990348 (1999-11-01), Lyons et al.
patent: 6022986 (2000-02-01), Scharbert et al.
patent: 6043184 (2000-03-01), Karmakar et al.
patent: 6060419 (2000-05-01), Wijesekera et al.
patent: 6060422 (2000-05-01), Takahashi et al.
patent: 6124499 (2000-09-01), Hibst et al.
patent: 6169202 (2001-01-01), Wijesekera et al.
patent: 6294685 (2001-09-01), Ushikubo et al.
patent: 6387841 (2002-05-01), Devlin et al.
patent: 6458740 (2002-10-01), Kasuga et al.
patent: 6518216 (2003-02-01), Han et al.
patent: 0425666 (1991-05-01), None
patent: 1077082 (2001-02-01), None
patent: 1132131 (2001-09-01), None
patent: 9313943 (1997-12-01), None
Hu, Ji and Burns, Robert, Journal of Catalysis, (195) 360-375. “The Effect of Cation Type and H+ on the Catalytic Activity of the Keggin Anion [PMO 12O4]3- in the Oxidative Dehydrogenation of Isobutyraldehyde”.
Li, W. et al., “Catalytic performance for propane selective oxidation and surface properties of 12-molybdophosphoric acid treated with pyridine”, Jan. 25, 1999, pp. 357-363.
Ueda, W. et al., “Selective oxidation of light alkanes over hydrothermally synthesized Mo-V-M-O (M=Al, Ga, Bi, Sb, and Te) oxide catalysts”, Mar. 27, 2000, pp. 135-143.
Ueda et al., “Partial Oxidation of Propane to Acrylic Acid over Reduced Heteropolymolybdate Catalysts,” Chemistry Letters, pp. 541-542 (1995).
Li, et al., “Catalytic performance for propane selective oxidation and surface properties of 12-molybdophosphoric acid treated with pyridine,” Applied Catalysis A:General, vol. 182, pp. 357-363 (1999) Elsevier.
Li, et al., “Catalytic oxidation of isobutane to methacrylic acid with molecular oxygen over activated pyridinium 12-molybdophosphate,” Catalysis Letters, vol. 46, pp. 261-265 (1197).
Ueda, et al., “Selective Oxidation of Light Alkanes Over Mo-Based Oxide Catalysts,” Res. Chem. Intermed., vol. 26, pp. 137-144 (2000).
Casarini, et al., “Reactivity of Molybdovanadophosphoric Acids: Influence of the Presence of Vanadium in the Primary and Secondary Structure,” Journal of Catalysis, vol. 143, pp. 325-344 (1993).
Centi et al., “Active form of 12-Vanadomolybdophosphoric Acids in n-Butane Selective Oxidation,” J. Chem. Soc. Faraday Tran. vol. 86(15), pp. 2775-2782 (1990).
Tsigdinos et al., “Molybdovanadophosphoric Acids and Their Salts. I. Investigation of Methods of Preparation and Characterization,” Inorganic Chemistry, vol. 7(3), pp. 437-441 (1968).
AI et al., “Catalytic Activity of Cesium Salt of 12-Molybdophosphoric Acid Containing a Vanadium Promoter in Selective Oxidation,” Journal of Catalysis, vol. 85, pp. 324-330 (1984).
Okuhara, et al., “Catalytic Chemistry of Heteropoly Compounds,” Adv. Catal. vol. 41, pp. 113-252 (1996).
AI, “Comparison of catalytic properties for partial oxidation between heterpolyacids and phosphates of vanadium and iron,” J. Mol. Catal. A: Chem., vol. 114, pp. 3-13 (1996).
Thorsteinson, et al., “The Oxidative Dehydrogenation of Ethane over Catalysts Containing Mixed Oxides of Molybdenum and Vanadium,” J. Catal. vol. 52, pp. 116-132 (1978).
Tessier et al., “Active specie on vanadium-containing catalysis for the selective oxidation of ethane to acetic acid,” Catal. Today, vol. 24, pp. 335-340 (1995).
Lin, “Selective oxidation of propane to acrylic acid with molecular oxygen,” Appl. Catal. A, vol. 207, pp. 1-16 (2001).
AI, “Partial Oxidation of n-Butane with Heteropoly Compound-based Catalysts,” in “8thInternational Congress on Catalysis,” vol. 5, pp. 475-486, Dechema, Berlin (1984).
Bardin et al., “Characterization of copper and vanadium containing heteropolyacid catalysts for oxidative dehydrogenation of propane,” Appl. Catal. A, vol. 185, pp. 283-292 (1999).
Li et al., “Catalytic selective oxidation of C2-C4 alkanes over reduced heteropolymolybdates,” in “3rdWorld Congress on Oxidation Catalysis,” (R.K. Grasselli et al. Editor) pp. 433-442, Elsevier, Amsterdam (1997).
Brait Axel
Davis Mark E.
Dillon Christopher J.
Holles Joseph H.
Labinger Jay A.
Brown Jennine
California Institute of Technology
Oliver Wallace L.
Sample David
Sroka Frank J.
LandOfFree
Polyoxometallate catalysts and catalytic processes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyoxometallate catalysts and catalytic processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyoxometallate catalysts and catalytic processes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3372254