Abstract: The invention relates to a continuous process for the preparation of Raney catalysts with controlled particle size, wherein the alloy of the catalytically active metal formed with aluminium and/or zinc is subjected to alkaline leaching, the hydrogen gas formed in this leaching step is separated and removed, the obtained product is washed, and the obtained catalyst with the desired particle size is separated. The improvement in this process comprises leaching the aluminium and/or zinc component of the alloy in a medium constantly kept in a turbulent flow, and removing the solid particles smaller than the desired range during the washing of the catalyst.
February 27, 1975
Date of Patent:
November 9, 1976
Budapesti Muszaki Egyetem, Peti Nitrogenmuvek
Sandor Gal, Bela Eross, Erno Pungor, Geza Siposs, Adorjan Monostory, Jozsef Barlai, Margit Szeiler nee Nemeth, Peti Nitrogenmuvek