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Dehydrodimerization of Isobutene to 2,5‐Dimethyl‐1,5‐Hexadiene over Bismuth‐(III)‐Oxide and Various Additives
Author(s) -
Taubert T.,
Scholz P.,
Ondruschka B.
Publication year - 2006
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200500320
Subject(s) - chemistry , catalysis , yield (engineering) , selectivity , bismuth , molar ratio , oxygen , inorganic chemistry , oxide , nuclear chemistry , residence time (fluid dynamics) , organic chemistry , materials science , metallurgy , geotechnical engineering , engineering
Bi 2 O 3 and mixtures with different additives (Cr 2 O 3 , MoO 3 , NH 4 VO 3 , SnO 2 , and V 2 O 5 ) have been chosen to study the oxidative dehydrodimerization of isobutene. The catalytic performances were investigated by variation of the residence time, isobutene to oxygen molar ratio, and pressure. The best results for 2,5‐dimethyl‐1,5‐hexadiene (DMH) yield (13 %) were achieved with Bi 2 O 3 as the catalyst. The selectivity of DMH reaches values of over 90 %.