POROUS MEMBRANE CATALYSTS WITH PD-M-CLUSTERS FOR LIQUID-PHASE HYDROGENATION OF DEHYDROLINALOOL

New membrane catalysts with less than 1.5% of Pd in porous stainless s teel have been prepared for liquid phase hydrogenation of unsaturated organic compounds. Ultradispersed Pd modified with catalytically activ e Pb, Mn, or Bi was prepared using Metal Vapour Synthesis techniques. Rates of over 12 mol/m(2)h with selectivities of up to 96% in hydrogen ation of dehydrolinalool into linalool under atmospheric pressure of H -2 were observed. The ease of separation of this catalyst from reactio n products, its regenerability, along with its corrosion, thermal stab ility, and mechanical strength give good prospects for these materials .