Abstract

The sodium, boron, calcium, magnesium, zinc, aluminum, and zirconium salts of 12-tungstophosphoric acid have been prepared and characterized using X-ray diffraction, mercury porosimetry, the chemisorption of ammonia, and Hammett indicators. Methanol conversion at 350 °C and a variety of residence times produced hydrocarbons ranging from C 1 to C 5 in amounts which varied with the cation. The more strongly acidic salts produced the higher yields of hydrocarbons. The maximum yield of the major product C 4 was found with the aluminum salt. The activities were related to the partial change on the oxygen atoms in the various catalysts.

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