The Catalytic Vapour Phase Oxidation of Butane to Acetic Acid Over Vanadium Oxide Based Catalysts

The Catalytic Vapour Phase Oxidation of Butane to Acetic Acid Over Vanadium Oxide Based Catalysts PDF Author: Michelle Katherine Lynch
Publisher:
ISBN:
Category : Acetic acid
Languages : en
Pages :

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The Catalytic Vapour Phase Oxidation of Butane to Acetic Acid Over Vanadium Oxide Based Catalysts

The Catalytic Vapour Phase Oxidation of Butane to Acetic Acid Over Vanadium Oxide Based Catalysts PDF Author: Michelle Katherine Lynch
Publisher:
ISBN:
Category : Acetic acid
Languages : en
Pages :

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The Catalytic Oxidation of Organic Compounds in the Vapor Phase

The Catalytic Oxidation of Organic Compounds in the Vapor Phase PDF Author: Leroy Frank Marek
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 506

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A Kinetic Study of the Vapour Phase Oxidation of Benzaldehyde Over a Vanadium Oxide Catalyst

A Kinetic Study of the Vapour Phase Oxidation of Benzaldehyde Over a Vanadium Oxide Catalyst PDF Author:
Publisher:
ISBN:
Category : Benzaldehyde
Languages : en
Pages : 81

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New Developments in Selective Oxidation II

New Developments in Selective Oxidation II PDF Author: V. Cortés Corberán
Publisher: Elsevier
ISBN: 008087990X
Category : Technology & Engineering
Languages : en
Pages : 907

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Book Description
This volume contains invited papers and communications presented at the Second World Congress and Fourth European Workshop Meeting on New Developments in Selective Oxidation. The purpose of the meeting was to present new topics and recent advances as well as the discussion of new aspects of fundamental and applied aspects of partial selective oxidation in heterogeneous and homogeneous catalysis. The following topics were discussed: New processes for fine chemicals by catalytic oxidation; Recent developments in surface chemistry of oxide catalysts; Novel catalytic systems and preparation methods; Heterogenized homogeneous oxidation catalysts; Selective oxidation and oxidative dehydrogenation of alkanes; New industrial developments based on catalytic oxidation reactions; Bio-, photo-, and electro-catalytic oxidation; Oxidation by other agents than dioxygen; Bifunctional metal-on-metal oxide catalysts for selective oxidation.This book provides a valuable set of data on selective oxidation reactions which will be extremely useful to catalyst and related practitioners, whether fundamentalists or highly applied, and to process engineers who wish to evaluate current findings in this field.

Preparation and Characterisation of Vanadium Phosphorus Oxide Catalysts for Butane Oxidation to Maleic Anhydride

Preparation and Characterisation of Vanadium Phosphorus Oxide Catalysts for Butane Oxidation to Maleic Anhydride PDF Author: Raja Lafi Al-Otaibi
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 0

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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.

A Kinetic Study of the Vapour-phase Oxidation of Toluene Over a Vanadium Oxide Catalyst

A Kinetic Study of the Vapour-phase Oxidation of Toluene Over a Vanadium Oxide Catalyst PDF Author: John Downie
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Liquid Phase Aerobic Oxidation Catalysis

Liquid Phase Aerobic Oxidation Catalysis PDF Author: Shannon S. Stahl
Publisher: John Wiley & Sons
ISBN: 3527690158
Category : Technology & Engineering
Languages : en
Pages : 456

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Book Description
The first book to place recent academic developments within the context of real life industrial applications, this is a timely overview of the field of aerobic oxidation reactions in the liquid phase that also illuminates the key challenges that lie ahead. As such, it covers both homogeneous as well as heterogeneous chemocatalysis and biocatalysis, along with examples taken from various industries: bulk chemicals and monomers, specialty chemicals, flavors and fragrances, vitamins, and pharmaceuticals. One chapter is devoted to reactor concepts and engineering aspects of these methods, while another deals with the relevance of aerobic oxidation catalysis for the conversion of renewable feedstock. With chapters written by a team of academic and industrial researchers, this is a valuable reference for synthetic and catalytic chemists at universities as well as those working in the pharmaceutical and fine chemical industries seeking a better understanding of these reactions and how to design large scale processes based on this technology.

Modification of Micro- and Nano-structures of Vanadium Oxide-based Catalyst for Partial Oxidation of N-butane

Modification of Micro- and Nano-structures of Vanadium Oxide-based Catalyst for Partial Oxidation of N-butane PDF Author: Yee Ching Wong
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 350

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The Catalytic Oxidation of Alcohols Over Metallic Catalysts

The Catalytic Oxidation of Alcohols Over Metallic Catalysts PDF Author: Robert Merrill Simington
Publisher:
ISBN:
Category :
Languages : en
Pages : 172

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Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards

Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 774

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Book Description
Theses on any subject submitted by the academic libraries in the UK and Ireland.