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PREPARATION OF PROPYLENE HAVING INTERMEDIATE CRYSTALLINITY WITH A CATALYST COMPRISING (1) TICL4-METAL HYDRIDE-ALKYL ALUMINUM HALIDE AND (2) ALUMINUM TRIALKYL
PREPARATION OF PROPYLENE HAVING INTERMEDIATE CRYSTALLINITY WITH A CATALYST COMPRISING (1) TICL4-METAL HYDRIDE-ALKYL ALUMINUM HALIDE AND (2) ALUMINUM TRIALKYL