Cobalt catalyst comprising a support comprising a mixed oxide phase including cobalt and/or nickel produced from an ether compound

A process for preparing a catalyst containing an active cobalt phase, deposited on a support comprising alumina, silica or silica-alumina, said support containing a mixed oxide phase containing cobalt and/or nickel, comprising at least

• a) a step of bringing a support comprising alumina, silica or silica-alumina into contact with at least one solution containing at least one precursor of cobalt and/or of nickel, then drying at a temperature below 200° C. and calcining at a temperature of between 700° C. and 1200° C., to obtain a mixed oxide phase containing cobalt and/or nickel in the support,
• then carrying out
• b) a step of bringing said support containing said mixed oxide phase into contact with at least one solution containing at least one precursor of cobalt,
• c) a step of bringing said support containing said mixed oxide phase into contact with at least one ether organic compound comprising not more than two ether functions and not comprising a hydroxyl group selected from the group of linear ethers consisting of diethyl ether, dipropyl ether, dibutyl ether, methyl tert-butyl ether, diisopropyl ether, di-tert-butyl ether, methoxybenzene, phenyl vinyl ether, isopropyl vinyl ether and isobutyl vinyl ether,
• steps b) and c) being able to be performed separately, in any order, or at the same time,
• then carrying out
• d) a step of drying at a temperature below 200° C.