Raney, Murray

Ragone, D.V., 348 Randall, Merle, 114 Randles, John E.B., 202, 608 Raney, Murray, 535 Rault, Frangois Marie, 99 Reymond, R, 618 Reuss, Ferdinand Friedrich, 595 Rohrer, H 484 Robinson, J., 504 Robinson, Robert A., 122 Ryder, K.S., 463 Rysselberghe, Pierre van, 698... 

The most important example of this category is Raney nickel, which is extensively used in hydrogenation reactions in fine chemistry. The catalyst has been named after Murray Raney who invented this catalyst in 1924. It is prepared by the reaction of a powdered nickel-aluminium alloy with aqueous sodium hydroxide to selectively remove a large fraction of the aluminium component (.see Figure 3.12). The product consists of porous nickel with a high... 

Key presentations by the Society s Paul N. Rylander and Murray Raney Award winners were given as plenary lectures at the conference. The winners honored at the 22nd conference include the 2007 Paul N. Rylander Award wiimer Professor Brian R. James of the University of British Columbia, the 2008 Paul N. Rylander Award wiimer Professor John F. Hartwig of the University of Illinois and the 2008 Murray Raney Award winner Dr. Daniel J. Ostgard of Evonik Degussa Corporation. 

Raney nickel, named for its inventor, Murray Raney, is widely used in the industry, chiefly because it is inexpensive and exhibits a wide range of catalytic activities. Essentially, it is prepared by an NaOH leaching of A1 from a 50-50 alloy of Ni and Al. Various standard forms of Raney nickel are used, and discussions of these are readily available 6,7 Tablel.l lists some essentials of the preparation.8 The Raney process is used to prepare several other metal catalysts. 7,9,1°... 

Skeletal catalysts were first discovered in the 1920s by Murray Raney [1,2], In recognition of their inventor, the catalysts are often referred to as Raney catalysts, although this trademark is now owned by the Davison division of W.R. Grace Co., who supply a range of catalysts for industrial use. Another common name is metal sponge, which refers to the porous structure of the catalysts. 

Murray RcUiey Award Lecture S5oithesis cuid Features of New Raney Catcdysts from Metastable Precursors... 

Includes the 2006 Paul N. Rylander Award address by Gadi Rothenberg and the 2006 Murray Raney Award address by Isamu Yamauchi... 

Murray Raney Award Leeture Synthesis and Features of New Raney Catalysts from Metastahle Preeursors... 

The Catalytic Hydrogenation section includes the 2006 Murray Raney Award Lecture by Professor Isamu Yamauchi, Osaka University, Japan. Similarly the Novel Methods section features an invited lecture by Gadi Rothenberg, University of Amsterdam, the 2006 Paul N. Rylander Award wiimer. 2005 Rylander Award wiimer Jean-Marie Basset is also acknowledged for presenting a lecture in the symposium on Catalysis in Organic Synthesis. 

In 1925 Murray Raney (la) was granted a patent covering a new method of preparation of a nickel catalyst. A pulverized nickel-silicon alloy was reacted with aqueous sodium hydroxide to produce a pyrophoric, brownish nickel residue with superior catalytic properties. Upon investigation of other alloys of nickel and alkali-soluble metals, it was found that the aluminum alloy could be made with ease (lb) and was easily pulverized. The catalyst which is prepared by the action of aqueous sodium hydroxide on this nickel-aluminum alloy is known as... 

The process used for the preparation of Raney nickel was originally described in a patent issued to Murray Raney in 1927. The catalyst is prepared from Raney alloy which is commercially available and which consists of approximately equal weights of nickel and aluminum. 

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