Production of wax produced via Fischer-Tropsch synthesis.

Procedure for preparing and using a cobalt catalyst for Fischer-Tropsch slurry phase, which includes introducing, in a step of preparing the catalyst support, a modifying component Mc, selected from (i) Si, Co, Ce , Cu, Zn, Ba, Ni, Na, K, Ca, Sn, Cr, Fe, Li, Tl, Sr, Ga, Sb, V, Hf, Th, Ge, U, Nb, Ta, W, La and mixtures; and / or (ii) Ti in combination with at least one of Si, Co, Ce, Cu, Zn, Ba, Ni, Na, K, Ca, Sn, Cr, Fe, Li, Tl, Sr, Ga, Sb, V, Hf, Th, Ge, U, Nb, Ta, W, and La, into a catalyst support precursor, followed by shaping and calcination of the catalyst support precursor, to obtain a catalyst support; impregnating the catalyst support with an aqueous solution of a cobalt salt, to form an impregnated support; partially drying the impregnated support; calcining the partially dried impregnated support to obtain a catalyst precursor; reducing the catalyst precursor to form a cobalt catalyst for Fischer-Tropsch synthesis slurry phase; contacting, at an elevated temperature between 180 ° C and 250 ° C, at an elevated pressure between 10 bar to 40 bar, and a synthesis reaction of Fischer-Tropsch slurry phase, a synthesis gas comprising hydrogen and carbon monoxide carbon with the cobalt catalyst for Fischer-Tropsch synthesis slurry phase; and obtaining a wax product that contains less than 50 mass ppm submicron particulates of cobalt.