B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/69, 252/8
B01J 23/74 (2006.01) B01J 21/04 (2006.01) B01J 21/08 (2006.01) B01J 23/755 (2006.01) C07C 5/10 (2006.01)
Patent
CA 1119149
ABSTRACT OF THE DISCLOSURE The instant invention relates to a method for preparing high activity supported nickel catalysts. The method comprises the deposition of nickel nitrate on a carrier, typically an inert inorganic refractory oxide, by techniques known in the art followed by careful heating to a temperature of between 100 to 270°C., avoiding any excursions into temp- eratures beyond the stated maxima, in a flowing nonreactive gas atomsphere for a time sufficient to convert substantially all of the nickel nitrate into nickel oxide. When using an H2 containing atmosphere the maximum temperature is 220°C. The supported nickel oxide resulting from the aboveprocedure is them reduced to a supported nickel metal catalyst in a re- ducing atmosphere at a temperature ranging from about 230°C. to 400°C. The instant invention also relates to a new class of supported nickel metal catalysts having a specific activity of at least twice the specific activities of prior art catalyst as determined for the hydrogenation of benzene. These catalysts comprise from 0.1 to 50 weight % nickel on a support, preferably 0.5 to 20 weight I nickel, most preferably about 17 weight % nickel on a support wherein the support is as defined above.
317123
Murrell Lawrence L.
Yates David J.c.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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