The invention relates to a
molybdenum isocaprylate catalyst and a preparation method thereof, and belongs to the technical field of
metal organic compounds. The method for preparing the
molybdenum isocaprylate catalyst comprises the following steps: firstly, mixing a
molybdenum source, isocaprylic acid,
acetic acid and a
reducing agent according to a
molar ratio of 1: (2.5-4.5): (1.5-2.5): (1.5-2.5), and carrying out mixed heating reaction at 80-100 DEG C for 1-3 hours; then carrying out reduced pressure
distillation, heating to 120-140 DEG C, adding 0.8-1.5 times of a
reducing agent and 0.01-0.1% of a
pour point depressant, and continuously reacting for 1-3 hours; and carrying out reduced pressure
distillation, heating to 180-200 DEG C, and keeping for 1-3 hours to obtain the molybdenum isocaprylate catalyst which is good in flowability and not easy to solidify. According to the invention,
oxalic acid or hydrazine
hydrate is used as a
reducing agent, and polymethacrylate or octadecyl polyacrylate is introduced as a
pour point depressant, so that the molybdenum content of the catalyst is effectively increased to 16%, the defect of easy solidification in a traditional preparation method is avoided, and the fluidity and industrial applicability of the catalyst are significantly improved. The method is simple in process, economical,
environmentally friendly and suitable for industrial large-scale production.