METHOD FOR PRODUCING CATALYSTS CONTAINING CHROME, FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES TO FORM BUTADIENE WHILE AVOIDING CR(VI) INTERMEDIATES

摘要

The invention relates to a method for producing a multi-metal oxide catalyst containing molybdenum, chrome and at least one additional metal, by mixing a powdered multi-metal oxide which contains molybdenum and at least one additional metal but no chrome, with powdered chrome(III)oxide, and thermally processing the obtained powdered mixture in the presence of oxygen and at a temperature in the range of between 350 and 650°C.