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Over H3PW12O40 and its acidic cesium salts at 250°C, alkane transformations occur through the mechanisms previously proposed for sulfated zirconia and mordenite catalysts: propane is mainly transformed into butanes through a trimerization–isomerization–cracking process, n-butane into isobutane, propane and pentanes through a dimerization–isomerization–cracking process, n-hexane into methylpentanes...
The gas phase transformation of acetophenone under hydrogen was investigated in a fixed-bed reactor over series of bifunctional Pd molecular sieves (HFAU, HBEA, MCM41). On all the catalysts, the desired product: 1,3-diphenylbutan-1-one (DPBO) which results from three successive steps: aldolisation then dehydration on the acid sites and hydrogenation over Pd sites, can be obtained directly. Benzoic...
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