Author: Robert Wayne WenigPublisher:
ISBN:
Category :
Languages : en
Pages : 418
Book Description
Vanadium-phosphorous-oxygen Industrial Catalysts for C4 Hydrocarbon Selective Oxidation to Maleic Anhydride
Author: Robert Wayne WenigModel Vanadium-phosphorous-oxygen Catalysts for the Selective Oxidation of C4 Hydrocarbons to Maleic Anhydride
Author: Thomas Patrick MoserPublisher:
ISBN:
Category :
Languages : en
Pages : 268
Book Description
In Situ Vibrational Spectroscopic Investigation of C4 Hydrocarbon Selective Oxidation Over Vanadium-phosphorus-oxide Catalysts
Author: Zhi-Yang XuePublisher:
ISBN:
Category :
Languages : en
Pages : 248
Book Description
The open chain dicarbonyl species then experienced cycloaddition to form maleic anhydride. VPO catalyst phase transformations were investigated using in situ laser Raman spectroscopy. During reduction-oxidation step changes, (VO)2P20-- was readily converted to [Alpha subscript Pi]-, [Delta]-VOP04 and ultimately to [Beta]-VOP04 in O2/N2; these V5 phases were eliminated in n- butane/N2. A "wet" nitrogen feed (5-10% H20 in N2) transformed (VO)2P20-- and [Alpha subscript Iota]-, [Alpha subscript Pi]-, [Beta]-, [Delta]-, [Gamma]-VOP04 to V2O5 at temperatures above 400°C. The presence of water vapor facilitated the loss of oxygen atoms involved in V-O-P bonding; separated vanadium oxide and phosphorus oxide species were formed. The isolated vanadium oxides than transformed to V2O5, and phosphorus species likely diffused from the catalyst lattice in the form of acid phosphates.
Selective Oxidation of C4 Hydrocarbons to Maleic Anhydride on V-P-O Catalysts
Author: Ramkumar PerumalPublisher:
ISBN:
Category : Butene
Languages : en
Pages : 144
Book Description
An Investigation of Active and Selective Oxygen in Vanadium Phosphorus Oxide Catalysts for N-butane Conversion to Maleic Anhydride
Author: Mark Edward LashierVanadia Catalysts for Processes of Oxidation of Aromatic Hydrocarbons
Author: Barbara Grzybowska-ŚwierkoszPublisher:
ISBN:
Category : Hydrocarbons
Languages : en
Pages : 196
Book Description
הכנה למבחן הבגרות (הכללי והדתי) בנושא "תולדות עם ישראל בדורות האחרונים" יחידה ו+ט - יחידת לימוד אחת, "ידע עם ומדינה" - 2 יחידות לימוד
Author: Energy Research Abstracts
Author: Hydrothermal Synthesis of Vanadium Phosphorus Oxide Catalysts for Selective Oxidation of N-butane to Maleic Anhydride
Author: Mohd. Hasbi Ab. RahimPublisher:
ISBN:
Category : Butane
Languages : en
Pages : 226
Book Description
Synthesis and Physicochemical Characterization of Vanadium Phosphorus Oxide Catalyst for Selective Oxidation of N-Butane to Maleic Anhydride
Author: Ahmad Raslan Mat HussinPublisher:
ISBN:
Category : Butane
Languages : en
Pages : 216
Book Description