B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/75 (2006.01) B01J 37/02 (2006.01) B01J 37/18 (2006.01) B01J 23/889 (2006.01)
Patent
CA 2606978
A method is described for lowering the nitrate content in a cobalt catalyst precursor formed by impregnating a catalyst support with cobalt nitrate, comprising calcining the impregnated support in air to effect partial denitrification and subsequently heating the calcined impregnated support to a temperature below 25O0C in the presence of a gas mixture comprising 0.1-10% hydrogen by volume in an inert gas.
L'invention concerne un procédé permettant de réduire la teneur en nitrate d'un précurseur de catalyseur de cobalt, formé par l'imprégnation d'un support de catalyseur à l'aide de nitrate de cobalt. Le procédé comporte les étapes consistant à: calciner dans l'air le support imprégné afin de produire une dénitrification partielle, et chauffer ultérieurement le support imprégné calciné à une température inférieure à 250 °C, en présence d'un mélange de gaz comprenant 0,1-10 % d'hydrogène en volume dans un gaz inerte.
Antonini Alejandro Martin
Casci John Leonello
Gowan Intellectual Property
Johnson Matthey Plc
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