Synthesis method of triphenyl antimony

The invention discloses a synthesis method of triphenyl antimony, which comprises the following steps: adding higher fatty acid or higher fatty acid salt and adding sodium to organic solvent under theprotection of an inert gas, performing refluxing reaction and cooling to room temperature; slowly adding halogenated benzene into the obtained solution, then slowly dripping halogenated benzene solution of antimonous chloride, reaction under stirring, filtering the obtained reaction solution, evaporating organic solvent and halogenated benzene in the obtained filtrate under normal pressure to obtain a crude triphenyl antimony product; dissolving the crude product with petroleum ether, filtrating, concentrating the obtained filtrate and then freezing for crystallization to obtain triphenyl antimony. Triphenyl antimony is synthesized by the method disclosed by the invention, the utilization rate of raw materials is high, the use of high-pollution catalysts is avoided, the discharge of threewastes is reduced, produc