Abstract
In a previous paper, it was reported that MgCrFeO 4 and ZnCrFeO 4 are very effective catalysts for the oxidative dehydrogenation of butenes to butadiene. This paper reports the evaluation of these catalysts for the oxidative conversion of a variety of other hydrocarbons. It was found that whenever a conjugated product can be formed it is the predominant product. When there is no possibility for dehydrogenation only complete combustion occurs. In contrast to what has been observed with another oxidation catalyst, bismuth molybdate, oxygenated hydrocarbons are not formed in detectable amounts. These ferrite catalysts are effective for producing isoprene, 2,3-dimethylbutadiene and methacrolein via oxidative dehydrogenation and for the production of high single pass yields of styrene using SO 2 as the hydrogen acceptor.
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