| abstract |
A PROCESS IS DISCLOSED FOR THE PREPARATION OF DIOLEFINS WHICH COMPRISES SIMULTANEOUSLY DEHYDROHALOGENATING AND DEALKYLATING A HALIDE SELECTED FROM THE GROUP OF 2-HALO PENTANES, 3-HALO PENTANES, 2-HALO-2-METHYL PENTANES, 3HALO-3-METHYL PENTANES, 2-HALO-3-METHYL PENTANES, 3-HALO2-METHYL PENTANES, 2-HALO-4-METHYL PENTANES, 3-HALO HEXANES, 3-HALO-3-ETHYL PENTANES, 2-HALO-3-ETHYL PENTANES, 2HALO-2-ETHYL PENTANES, 3-HALO-4-METHYL HEXANES, 3-HALO2-METHYL HEXANES, 3-HALO-5-METHYL HEXANES, 2-HALO-4METHYL HEXANES, 2-HALO-HEXANES, 2-HALO-2-METHYL HEXANES, 2-HALO-3-METHYL HEXANES, 3-HALO HEPTANES, 3-HALO-3-ETHYLHEXANES, 3-HALO-3-METHYL HEPTANES, 3-HALO-4-METHYL HEPTANES, AND 3-HALO-2-METHYL HEPTANES, OVER A CATALYST WHICH IS AN OXIDE OF AN ELEMENT SELECTED FROM THE GROUP OF COPPER, BERYLLIUM, MAGNESIUM, CALCIUM, STRONTIUM, BARIUM, ZINC, CADMIUM, BORON, ALUMINUM, GALLIUM, INDIUM, SILICON, TIN, LEAD, TITANIUM, ZIRCONIUM, ANTIMONY, BISMUTH, VANADIUM, CHROMIUM, MOLYBDENUM, TUNGSTEN, MANGANESE, RHENIUM, IRON, COBALT, NICKEL, CERIUM, PRASEODYMIUM AND THORIUM, AT TEMPERATURES OF 500*C. TO 800*C. |