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Process for methylating naphthalenic compounds using a zeolite catalyst wherein a part of the al atom has been replaced by fe, the catalyst and a method for preparing the catalyst
Process for methylating naphthalenic compounds using a zeolite catalyst wherein a part of the al atom has been replaced by fe, the catalyst and a method for preparing the catalyst
Novel catalysts and processes in accordance with the invention can accomplish high selectivity and conversion of naphthalenic compounds such as the conversion of methylnaphthalene (2-MN) or naphthalene to 2,6-dimethylnaphthalene (2,6-DMN). The catalysts are prepared by treating, for example, a ZSM-5-type material with iron in the presence of a halogen such as a fluoride. The resulting catalyst includes iron, as well as a significant portion of aluminum present in the ZSM-5-type starting material. Processes for using the catalysts also are disclosed.
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