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N Butane Oxidation On Vanadium Phosphorus Oxide Catalysts
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Book Synopsis N-butane Oxidation on Vanadium-phosphorus-oxide Catalysts by : E. N. Gobina
Download or read book N-butane Oxidation on Vanadium-phosphorus-oxide Catalysts written by E. N. Gobina and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Selective Oxidation of N-butane to Maleic Anhydride Over Model Vanadium-phosphorus Oxide Catalysts by : Thomas Patrick Moser
Download or read book The Selective Oxidation of N-butane to Maleic Anhydride Over Model Vanadium-phosphorus Oxide Catalysts written by Thomas Patrick Moser and published by . This book was released on 1984 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NMR Study of N-butane Oxidation Catalyzed by Vanadium Phosphorus Oxides and Other Metal Oxides-based Catalysts by : Bin Chen
Download or read book NMR Study of N-butane Oxidation Catalyzed by Vanadium Phosphorus Oxides and Other Metal Oxides-based Catalysts written by Bin Chen and published by . This book was released on 2001 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Characterisation of Vanadium Phosphorus Oxide Catalysts for Butane Oxidation to Maleic Anhydride by : Raja Lafi Al-Otaibi
Download or read book Preparation and Characterisation of Vanadium Phosphorus Oxide Catalysts for Butane Oxidation to Maleic Anhydride written by Raja Lafi Al-Otaibi and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis aims the study of new preparative routes to get catalyst precursors VOHPO4.0.5H2O with good catalytic performance for the selective oxidation of n-butane to maleic anhydride. The use of octane as co-solvent shows a significant effect on the morphology of VOHPO4.0.5H2O precursor which was prepared via three different routes. The reaction of VOPO4.2H2O with octane solvent shows the possibility of the intercalation of the octane solvent between the layers of VOPO4.2H2O. This can lead to the formation of VOHPO4.0.5H2O precursors with a new morphology after the reduction step using 1-butanol. In addition, the use of octane as co-solvent with 1-butanol leads to the formation of VOHPO4.0.5H 2O with a different XRD pattern and new morphology. Testing these samples shows that the samples with rosette morphology exhibit the highest conversion and selectivity compared with the new materials prepared. We demonstrate that the use of seed crystals of vanadium phosphate can have a dramatic influence on the morphology and phase identity of the precursor materials. VOHPO4.0.5H2O was prepared from VOPO 4.2H2O using 1- and 3-octanol, 2-butanol and 2-methyl-1-propanol as both solvent and reducing agent. With 1-octanol the reaction temperature was found to be crucial in obtaining a high yield of the precursor phase, and at temperatures ≥160°C a solution, containing V4+ ions formed in preference to VOHPO4.0.5H2O. However, VOHPO4.0.5H2O formation can be achieved by the addition of a small amount of V-P-O materials as seeds if carrying out the reduction process above this temperature. In contrast, when 3-octanol is used, VO(H 2PO4)2 is formed solely, but in the presence of a V-P-O seed significant amounts of VOHPO4.0.5H2O can also be formed. Studying the reaction time online shows that VO(H2PO 4)2 could be transformed to VOHPO4.0.5H2 O, which has been attempted previously without success. Finally, testing these samples under reaction conditions shows that they demonstrate high selectivity toward MA and good conversion compared to VO(H2PO4) 2. Vanadium phosphate catalysts have successfully been prepared in aqueous media using hydrogen. The catalysts precursors obtained were poorly crystalline VOHPO4.05H2O and a minor amount of an impurity detected by a reflection in the XRD pattern. Activating these materials for n-butane oxidation show low selectivity of MA (5%), which could be attributed to the presence of V(V) phases after activation.
Book Synopsis Preparation and Characterisation at Vanadium Phosphorus Oxide Catalysts for Butane Oxidation to Maleic Anhydride by : Raja Lafi Al-Otaibi
Download or read book Preparation and Characterisation at Vanadium Phosphorus Oxide Catalysts for Butane Oxidation to Maleic Anhydride written by Raja Lafi Al-Otaibi and published by . This book was released on 2010 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis N-butane Oxidation on Vanadium-phosphorous-oxide Catalysts by : Njombe Gobina
Download or read book N-butane Oxidation on Vanadium-phosphorous-oxide Catalysts written by Njombe Gobina and published by . This book was released on 1990 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Oxidation of N-butane to Maleic Anhydrice Over Vanadium Phosphorus Oxide Catalysts Prepared in Organic and Aqueous Media by : Fearghal Dason
Download or read book Selective Oxidation of N-butane to Maleic Anhydrice Over Vanadium Phosphorus Oxide Catalysts Prepared in Organic and Aqueous Media written by Fearghal Dason and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrothermal Synthesis of Vanadium Phosphorus Oxide Catalysts for Selective Oxidation of N-butane to Maleic Anhydride by : Mohd. Hasbi Ab. Rahim
Download or read book Hydrothermal Synthesis of Vanadium Phosphorus Oxide Catalysts for Selective Oxidation of N-butane to Maleic Anhydride written by Mohd. Hasbi Ab. Rahim and published by . This book was released on 2006 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Physicochemical Characterization of Vanadium Phosphorus Oxide Catalyst for Selective Oxidation of N-Butane to Maleic Anhydride by : Ahmad Raslan Mat Hussin
Download or read book Synthesis and Physicochemical Characterization of Vanadium Phosphorus Oxide Catalyst for Selective Oxidation of N-Butane to Maleic Anhydride written by Ahmad Raslan Mat Hussin and published by . This book was released on 2006 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Physico-chemical Properties of Nanosized Vanadium Phosphorus Oxide, and Its Use as Catalyst in Selective Oxidation of N-butane to Maleic Anhydride by : Nurul Suziana Nawi @ Mohamed
Download or read book Synthesis and Physico-chemical Properties of Nanosized Vanadium Phosphorus Oxide, and Its Use as Catalyst in Selective Oxidation of N-butane to Maleic Anhydride written by Nurul Suziana Nawi @ Mohamed and published by . This book was released on 2011 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Active and Selective Oxygen in Vanadium Phosphorus Oxide Catalysts for N-butane Conversion to Maleic Anhydride by : Mark Edward Lashier
Download or read book An Investigation of Active and Selective Oxygen in Vanadium Phosphorus Oxide Catalysts for N-butane Conversion to Maleic Anhydride written by Mark Edward Lashier and published by . This book was released on 1989 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of News Methods for Synthesizing Reactive Nanostructured Vanadium Phosphate Catalysts for Partial Oxidation of N-butane to Maleic Anhydride by : Ali Asghar Rownaghi
Download or read book Development of News Methods for Synthesizing Reactive Nanostructured Vanadium Phosphate Catalysts for Partial Oxidation of N-butane to Maleic Anhydride written by Ali Asghar Rownaghi and published by . This book was released on 2007 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Preparation and Characterisation of Vanadium Phosphate Catalysts for the Selective Oxidation of N-butane to Maleic Anhydride by : Jonathan Keith Bartley
Download or read book The Preparation and Characterisation of Vanadium Phosphate Catalysts for the Selective Oxidation of N-butane to Maleic Anhydride written by Jonathan Keith Bartley and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of Vanadium-phosphorus-oxygen Selective Oxidation Catalysts by Sup 31 P and Sup 51 V NMR Spin-echo and Volume Susceptibility Measurements by :
Download or read book Studies of Vanadium-phosphorus-oxygen Selective Oxidation Catalysts by Sup 31 P and Sup 51 V NMR Spin-echo and Volume Susceptibility Measurements written by and published by . This book was released on 1991 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this work is to characterize the vanadium-phosphorous oxide (V-P-O) catalysts for the selective oxidation of n-butane and 1-butene to maleic anhydride. The utility of solid state nuclear magnetic resonance as an analytical tool in this investigation lies in its sensitivity to the electronic environment surrounding the phosphorous and vanadium nuclei, and proximity of paramagnetic species. Spin-echo mapping NMR of 31p and 51v and volume magnetic susceptibility measurements were used as local microscopic probes of the presence of V{sup 5+}, V{sup 4+}, V{sup 3+} species in the model compounds: [beta]-VOPO4, [beta]-VOPO4 treated with n-butane/1-butene, (VO)2P2O-- treated with n-butane/1-butene; and industrial catalysts with P/V (phosphorus to vanadium) ratio of 0.9, 1.0 and 1.1, before and after treatment with n-butane and 1-butene. The NMR spectra provide a picture of how the oxidation states of vanadium are distributed in these catalysts. 73 refs., 32 figs., 8 tabs.
Book Synopsis Bi-Fe Doping and Mechanochemical Treatment of Vanadium Phosphate Catalysts for Selective Oxidation of N-butane to Maleic Anhydride by : Chee Keong Goh
Download or read book Bi-Fe Doping and Mechanochemical Treatment of Vanadium Phosphate Catalysts for Selective Oxidation of N-butane to Maleic Anhydride written by Chee Keong Goh and published by . This book was released on 2006 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Spectroscopic and Catalytic Study of Silica-supported Vanadium-phosphorus Oxides Used in Selective Butane Oxidation by : Kari Elizabeth Birkeland
Download or read book A Spectroscopic and Catalytic Study of Silica-supported Vanadium-phosphorus Oxides Used in Selective Butane Oxidation written by Kari Elizabeth Birkeland and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physico-chemical Properties and Oxygen Species Behavior of Bulk and Modified Vanadium Phosphate Catalyst for Partial Oxidation of N-butane by : Wen Jiunn Tang
Download or read book Physico-chemical Properties and Oxygen Species Behavior of Bulk and Modified Vanadium Phosphate Catalyst for Partial Oxidation of N-butane written by Wen Jiunn Tang and published by . This book was released on 2008 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: