Hydrogenation of C4 acetylenes over cation exchangers doped with palladium.
Lewatit and Amberlyst-type cation exchangers were used as carriers for Pd in the title reaction. Amberlyst 15 and Lewatit ATP 202 gave selectivities for butadiene of 0.5-0.6. Using the Na form of the cation exchanger instead of the H form for the Pd loading had little effect.
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